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Journal articles on the topic 'Lumbar region'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gelabert-González, Miguel. "Paragangliomas of the lumbar region." Journal of Neurosurgery: Spine 2, no. 3 (March 2005): 354–65. http://dx.doi.org/10.3171/spi.2005.2.3.0354.

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✓ The author reports two cases of cauda equina paraganglioma (CEP) and provides a review of all previously published cases. The current radiological, neurosurgical, and pathological literature on this rare tumor is also reviewed.

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Yurisworo, Anggita Tri, Bagas Widhiarso, Andhi Prijosedjati, and Pamudji Utomo. "BESAR KURVA THORAKAL DAN LUMBAL MODIFIER SEBAGAI FAKTOR PREDIKSI TERHADAP KOREKSI SPONTAN KURVA LUMBAL PASKA OPERASI PADA ADOLESCENT IDIOPATHIC SCOLIOSIS LENKE I." Biomedika 11, no. 2 (September 16, 2019): 74–80. http://dx.doi.org/10.23917/biomedika.v11i2.7629.

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Adolescent idiopathic scoliosis Lenke I dengan pola kurva mayor pada kurva thorakal (main thoracic), dengan kurva proximal thoracic dan thoracolumbar/lumbar sebagai kurva minor non struktural. Instrumentasi dan fusi hanya pada kurva thorakal dianjurkan. Pada literatur dijelaskan bahwa koreksi spontan kurva lumbal terjadi sebagai kompensasi untuk menyeimbangkan kurva thorakal setelah dilakukannya fusi thorakal selektif. Lumbal modifier dibagi menjadi 3 grup, pemilihan terapi operatif bergantung pada tipe lumbal modifier. Penelitian ini merupakan suatu analisis observational pada 35 pasien adolescent idiopathic scoliosis Lenke I paska operasi koreksi deformitas dan instrumentasi posterior. evaluasi menggunakan X ray sebelum dan setelah operasi untuk penentuan tipe lumbal modifier, besarnya koreksi kurva thorakal dan penilaian koreksi spontan kurva lumbal, kemudian dilakukan uji korelasi terhadap data yang didapat. Besarnya koreksi kurva thorakal terhadap koreksi spontan kurva lumbal paska operasi memiliki nilai signifikansi (Sig) = 0,000 < 0,05 dan besarnya koreksi kurva thorakal memiliki nilai koefisien regresi lebih besar bila dibandingkan dengan lumbal modifier terhadap koreksi spontan kurva lumbal paska operasi (variabel besar koreksi kurva thorakal (X1) = 0,764, Lumbal modifier (X2) = 0,092). Besarnya koreksi kurva thorakal berpengaruh signifikan terhadap koreksi spontan kurva lumbal paska operasi dan besarnya koreksi kurva thorakal yang paling dominan dalam mempengaruhi koreksi spontan kurva lumbal dibandingkan dengan lumbal modifier.Kata kunci : Adolescent idiopathic scoliosis, Lumbal modifier, kurva thorakal Adolescent idiopathic scoliosis Lenke I, main thoracic curve pattern has the major curve, with the proximal thoracic and thoracolumbar/lumbar being non structural minor curves. Thus, instrumentation and fusion of the main thoracic region alone is recommended. In the literature it is said that the lumbar curve spontaneously corrects to balance the thoracic curve after selective thoracic fusion. Most authors assumed a mechanism whereby improvement of the lumbar curve occurred through counterbalancing the surgical correction of the thoracic curve. The lumbar curve divided in three subgroups: lumbar modifier A, B and C. The selection of specific operative treatments depends on this modifier. This study was an observational analysis in 35 adolescent idiopathic scoliosis Lenke I patients after correction and posterior instrumentation surgery. Evaluation using X-rays before and after surgery to determine the type of lumbar modifier, the magnitude of the main thoracic curve and assessment of spontaneous lumbar curve correction, then correlation test obtained. The magnitude of main thoracic curve correction to the spontaneous lumbar curve correction has a significance value (Sig) = 0.000 < 0.05 and the magnitude of main thoracic curve correction has a greater regression coefficient than the lumbar modifier for spontaneous lumbar curve correction (large correction variable thoracic curve (X1) = 0.764, Lumbal modifier (X2) = 0.092). The magnitude of main thoracic curve correction has a significant effect on the spontaneous lumbar curve correction and the magnitude of main thoracic curve correction is most dominant factor to influence spontaneous lumbar curve correction compared to the lumbar modifier.Keywords: Adolescent idiopathic scoliosis, Lumbar modifier, main thoracic

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3

Oge, H., S. Oge, B. Gonenc, G. Ozbakis, and C. Asti. "Coenurosis in the lumbar region of a goat: a case report." Veterinární Medicína 57, No. 6 (July 16, 2012): 308–13. http://dx.doi.org/10.17221/6018-vetmed.

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Coenurosis caused by Coenurus cerebralis, the larval stage of Taenia multiceps, particularly affects sheep and goats. In this case report, two coenurus cysts were detected under the lumbar spinal cord (outside the CNS) in a goat. We first described cysts in the macro- and micro-morphological examination. The cysts were identified as C. cerebralis on the basis of the arrangement of scolices and the number and size of hooks in the scolices. The morphology of the larval cyst was similar to that of T. multiceps: the scolices had four suckers and a rostellum with a double crown of hooks. The hooks and hooklets were 178 and 132 µm in length, respectively. T. gaigeri may be synonymous with T. multiceps. This may reflect a different host response to the parasite in goats. The difficulty of making a species identification in C. cerebralis or C. gaigeri based on their morphology is discussed.  

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Szczepanik, M. P., P. M. Wilkołek, M. Pluta, Ł. R. Adamek, and Z. J. H. Pomorski. "The examination of biophysical parameters of skin (transepidermal water loss, skin hydration and pH value) in different body regions of ponies." Polish Journal of Veterinary Sciences 15, no. 3 (October 1, 2012): 553–59. http://dx.doi.org/10.2478/v10181-012-0081-8.

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Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal ponies. Sixteen ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the auricle. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the lumbar region (9.71g/hm2), while the highest values were observed in the lip region (22.35 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (2.13 CU), and the highest for the lip region (41.81 CU). For skin pH, the lowest results were obtained in the lumbar region (6.93), and the highest in the lip region (7.96).

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5

Dung, H. C. "Acupuncture Points of the Lumbar Plexus." American Journal of Chinese Medicine 13, no. 01n04 (January 1985): 133–43. http://dx.doi.org/10.1142/s0192415x85000186.

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This communication is the fifth in a series of six publications describing acupuncture points by anatomic nomenclature. This article describes acunpuncture points in the lumbar region of the posterior body wall, the inguinal and pelvic regins of the lower abdomen, and the medial surface of the thigh and leg. Acunpuncture points in these regions are generally established by anatomic features of the lumbar spinal nerves. Nerve branches of the posterior primary rami of the lumbar spinal nerves and the lumbar plexus provide the anatomic basis for acunpuncture points in these regions and are used to name the points accordingly.

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6

Ravikumar, V., A. M. Siri, and H. Sadashivana Gowd. "Sacralisation of Lumbar Vertebrae in Karnataka Region." International Journal of Contemporary Medicine 1, no. 1 (2013): 44. http://dx.doi.org/10.5958/j.2321-1032.1.1.016.

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7

Garrison, Michael, Richard B. Westrick, and Michael R. Johnson. "Morel-Lavallée Lesion of the Lumbar Region." Journal of Orthopaedic & Sports Physical Therapy 44, no. 3 (March 2014): 223. http://dx.doi.org/10.2519/jospt.2014.0404.

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8

Kalmykov, E. L., A. D. Gaibov, O. N. Sadriev, and A. N. Safarova. "Primary Muscle Hydatidosis of the Lumbar Region." Novosti Khirurgii 24, no. 6 (November 16, 2016): 610–16. http://dx.doi.org/10.18484/2305-0047.2016.6.610.

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9

Alajlouni, Dima, Dana Bliuc, Thach Tran, Nicholas Pocock, Tuan V. Nguyen, John A. Eisman, and Jacqueline R. Center. "Nonstandard Lumbar Region in Predicting Fracture Risk." Journal of Clinical Densitometry 21, no. 2 (April 2018): 220–26. http://dx.doi.org/10.1016/j.jocd.2017.05.014.

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10

Andar, U. B., W. F. J. Harkness, and R. D. Hayward. "Split Cord Malformations of the Lumbar Region." Pediatric Neurosurgery 26, no. 1 (1997): 17–24. http://dx.doi.org/10.1159/000121156.

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11

Holguin, Nilsson, Rhiannon Aguilar, Robin A. Harland, Bradley A. Bomar, and Matthew J. Silva. "The aging mouse partially models the aging human spine: lumbar and coccygeal disc height, composition, mechanical properties, and Wnt signaling in young and old mice." Journal of Applied Physiology 116, no. 12 (June 15, 2014): 1551–60. http://dx.doi.org/10.1152/japplphysiol.01322.2013.

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Murine lumbar and coccygeal (tail) regions of spines are commonly used to study cellular signaling of age-related disc diseases, but the tissue-level changes of aging intervertebral discs and vertebrae of each spinal region remain unclear. Furthermore, the impact of aging lumbar and coccygeal discs on Wnt/β-catenin signaling, which is putatively involved in the catabolism of intervertebral discs, is also unclear. We compared disc/vertebrae morphology and mechanics and biochemical composition of intervertebral discs from lumbar and coccygeal regions between young (4–5 mo) and old (20–22 mo) female C57BL/6 mice. Center intervertebral disc height from both regions was greater in old discs than young discs. Compared with young, old lumbar discs had a lower early viscous coefficient (a measure of stiffness) by 40%, while conversely old coccygeal discs were stiffer by 53%. Biochemically, old mice had double the collagen content in lumbar and coccygeal discs of young discs, greater glycosaminoglycan in lumbar discs by 37%, but less glycosaminoglycan in coccygeal discs by 32%. Next, we compared Wnt activity of lumbar and coccygeal discs of 4- to 5-mo and 12- to 14-mo TOPGAL mice. Despite the disc-specific changes, aging decreased Wnt signaling in the nucleus pulposus from both spinal regions by ≥64%. Compared with young, trabecular bone volume/tissue volume and ultimate force were less in old lumbar vertebrae, but greater in old coccygeal vertebrae. Thus intervertebral discs and vertebrae age in a spinal region-dependent manner, but these differential age-related changes may be uncoupled from Wnt signaling. Overall, lumbar and coccygeal regions are not interchangeable in modeling human aging.

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Joaquim, Andrei F., Leonardo Giacomini, Enrico Ghizoni, Fábio Araújo Fernandes, Marcelo L. Mudo, and Helder Tedeschi. "Surgical Anatomy and Approaches to the Anterior Thoracolumbar Spine Region." JBNC - JORNAL BRASILEIRO DE NEUROCIRURGIA 23, no. 4 (March 28, 2018): 295–300. http://dx.doi.org/10.22290/jbnc.v23i4.1211.

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We review the surgical anatomy of the thoraco-lumbar spine region located between the eleventh thoracic and the second lumbar vertebrae (T11-L2). Anatomical features of muscular, vascular and neural structures important to surgical approaches are described in details. We also discuss surgical nuances of the transthoracic retroperitoneal and the lateral retropleural approaches. We conclude that anatomical knowledge is important to improve the efficacy and safety of surgical procedures in the thoraco-lumbar spine region.

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Kamble, Yallawa S., Pramod R. Kulkarni, and Uttama U. Joshi. "MORPHOMETRY AND SEXUAL DIMORPHISM OF LUMBAR PEDICLES IN DRY BONES OF MAHARASHTRA REGION." International Journal of Anatomy and Research 5, no. 4.3 (December 1, 2017): 4654–59. http://dx.doi.org/10.16965/ijar.2017.428.

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Cowley, K. C., and B. J. Schmidt. "Regional Distribution of the Locomotor Pattern-Generating Network in the Neonatal Rat Spinal Cord." Journal of Neurophysiology 77, no. 1 (January 1, 1997): 247–59. http://dx.doi.org/10.1152/jn.1997.77.1.247.

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Cowley, K. C. and B. J. Schmidt. Regional distribution of the locomotor pattern-generating network in the neonatal rat spinal cord. J. Neurophysiol. 77: 247–259, 1997. The regional distribution of spinal cord networks producing locomotor-like, as well as non-locomotor-like, activity was studied with the use of an in vitro neonatal rat preparation. Rhythmic activity was induced by bath application of either serotonin (5-HT), acetylcholine (ACh), N-methyl-d,l-aspartate (NMA), or combined 5-HT/NMA, and was monitored via hindlimb flexor (peroneal) and extensor (tibial) electroneurograms (ENGs) or ventral root recordings. In some experiments, synchronous patterns were produced by the addition of inhibitory amino acid (IAA) receptor antagonists. Selective application of 5-HT to cervical and thoracic cord regions induced rhythmic activity in these segments but failed to evoke hindlimb ENG discharge. Exposure of the isolated lumbar region to 5-HT produced tonic activity only. Application of 5-HT to the whole cord produced locomotor-like activity in hindlimb ENGs that persisted after midsagittal section of the spinal cord from the conus to the thoracolumbar junction. In other experiments, transverse hemisection of the rostral lumbar cord during whole cord exposure to 5-HT abolished rhythmic activity in ipsilateral hindlimb ENGs, suggesting that under these conditions rhythmic activity on one side of the lumbar cord was insufficient to maintain rhythmic activity on the contralateral side. Selective application of NMA or ACh to cervical and/or thoracic cord regions evoked rhythmic activity in these supralumbar segments, as well as rhythmic, but non-locomotor-like, activity in the lumbar region. In contrast to the effect of 5-HT, both NMA and ACh evoked rhythmic activity when applied solely to the lumbar region, and the side-to-side alternation produced by whole cord ACh application was uncoupled by midsagittal lesions of the lumbar region. In the presence of IAA antagonists, the side-to-side coupling of bilaterally synchronous rhythms was maintained despite extensive midsagittal lesions leaving all but one or two segments of either cervical, thoracic, or lumbar cord bilaterally intact, and rhythmic activity could be maintained even in single isolated hemisegments. The effects of 5-HT/NMA were similar to those observed with the use of 5-HT alone, although 5-HT/NMA induced rhythmic activity in hindlimb ENGs when applied selectively to supralumbar regions. The results suggest that 1) a 5-HT-sensitive oscillatory network, capable of producing a locomotor-like pattern of activity, is distributed throughout the supralumbar region of the spinal cord and mediates descending rhythmic drive to lumbar motor centers; 2) NMA- and ACh-sensitive rhythmogenic elements are distributed throughout the spinal cord, including the lumbar region; and 3) the spinal cord contains an extensive propriospinal network of reciprocal inhibitory and excitatory connections characterized by redundantly organized side-to-side projections.

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Jensen, Morten Sall, Kim Rose Olsen, Lars Morsø, Jens Søndergaard, and Berit Schiøttz-Christensen. "Does changed referral options affect the use of MRI for patients with low back pain? Evidence from a natural experiment using nationwide data." BMJ Open 9, no. 6 (June 2019): e025921. http://dx.doi.org/10.1136/bmjopen-2018-025921.

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ObjectivesThis study reports lumbar MRI referral patterns in the Region of Southern Denmark (RSD) and investigates the hypothesis that we will see an increase in imaging rates (MRI rates) following new referral options to lumbar MRI in the RSD in comparison with the other regions in Denmark from 2010 to 2013.DesignA difference-in-difference (DD) analysis, using general practitioners (GPs) in other regions as control, was used to test if the new referral options had an effect on the MRI rates.SettingIn 2010, RSD introduced organisational changes affecting the referral options for lumbar MRI. First, the possibility for direct referral to lumbar MRI was introduced GPs, and second, the region gathered all local spine departments into one specialist hospital called the Spine Centre.ParticipantsWe retrieved all lumbar MRIs performed on patients aged 18+ performed on Danish hospitals from 2008 to 2013 using the registries from Statistics Denmark. We use sociodemographic information from all Danish citizens aged 18+ aggregated to GP level. Primary and secondary outcome measures: lumbar MRI scans per 1000 capita enlisted with a GP (MRI rates) were calculated based on GPs patient list. Four referral types were made to describe changes in referral patterns.ResultsIn total 183 389 patients received 240 760 lumbar MRIs in the period. The use of the direct referral option by GPs in the RSD increased by 115% in the period from 2010 to 2013 and accounted for 34% of all referrals (n=6545) in 2013. MRI rates were significantly higher in RSD following the organisational changes (DD 1.389(0.925–1.852) lumbar MRI per 1.000 enlisted with a GP).ConclusionsIntroduction of organisational changes in RSD as direct referral to lumbar MRI from GPs and chiropractors as well as establishing a Spine Centre increase the lumbar MRI rate in comparison with other regions in Denmark.

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Merlet, Angèle N., Jonathan Harnie, Madalina Macovei, Adam Doelman, Nathaly Gaudreault, and Alain Frigon. "Mechanically stimulating the lumbar region inhibits locomotor-like activity and increases the gain of cutaneous reflexes from the paws in spinal cats." Journal of Neurophysiology 123, no. 3 (March 1, 2020): 1026–41. http://dx.doi.org/10.1152/jn.00747.2019.

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Mechanically stimulating the dorsal lumbar region inhibits locomotion and reduces weight support during standing in rabbits and cats. However, how this inhibitory effect from the lumbar skin is mediated is poorly understood. Here we evaluated the effect of mechanically stimulating (vibration or pinch) the dorsal lumbar region on short-latency (8- to 13-ms onset) cutaneous reflex responses, evoked by electrically stimulating the superficial peroneal or distal tibial nerves, in seven adult cats with a low thoracic spinal transection (spinal cats). Cutaneous reflexes were evoked before, during, and after mechanical stimulation of the dorsal lumbar region. We found that mechanically stimulating the lumbar region by vibration or manual pinch abolished alternating bursts of activity between flexors and extensors initiated by nerve stimulation. The activity of extensor muscles was abolished bilaterally, whereas the activity of some ipsilateral flexor muscles was sustained during vibration/pinch. Mechanically stimulating the lumbar region increased ipsilateral and contralateral short-latency excitatory responses evoked by cutaneous inputs, a phenomenon that was generalized to muscles crossing different joints and located in different limbs. Our results indicate that the inhibitory effect on locomotion and weight support is not mediated by reducing cutaneous reflex gain and instead points to an inhibition of central pattern-generating circuitry, particularly the extensor component. The results provide greater insight into interactions between different types of somatosensory inputs within spinal motor circuits. NEW & NOTEWORTHY Vibration or pinch of the lumbar region in spinal-transected cats abolished alternating bursts of activity between flexors and extensors initiated by nerve stimulation. Mechanically stimulating the lumbar region increased ipsilateral and contralateral short-latency excitatory responses evoked by cutaneous inputs in hindlimb muscles. Sensory inputs from mechanoreceptors of the lumbar region do not mediate their inhibitory effect on locomotion and weight support by reducing the gain of short-latency excitatory cutaneous reflexes from the foot.

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Irie, Tomoyo Y., Tohru Irie, Alejandro A. Espinoza Orías, Kazuyuki Segami, Norimasa Iwasaki, Howard S. An, and Nozomu Inoue. "Micro-computed tomography analysis of the lumbar pedicle wall." PLOS ONE 16, no. 7 (July 8, 2021): e0253019. http://dx.doi.org/10.1371/journal.pone.0253019.

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Background Although the pedicle is routinely used as a surgical fixation site, the pedicle wall bone area fraction (bone area per unit area) and its distribution at the isthmus of the pedicle remain unknown. The bone area fraction at the pedicle isthmus is an important factor contributing to the strength of pedicle screw constructs. This study investigates the lumbar pedicle wall microstructure based on micro-computed tomography. Methods Six fresh-frozen cadaveric lumbar spines were analyzed. Left and right pedicles of each vertebra from L1 to L5 were resected for micro-computed tomography scanning. Data was analyzed with custom-written software to determine regional variation in pedicle wall bone area fraction. The pedicular cross-section was divided into four regions: lateral, medial, cranial, and caudal. The mean bone area fraction values for each region were calculated for all lumbar spine levels. Results The lateral region showed lower bone area fraction than the medial region at all spinal levels. Bone area fraction in the medial region was the highest at all levels except for L4, and the median values were 99.8% (95.9–100%). There were significant differences between the lateral region and the caudal region at L1, L2 and L3, but none at L4 and L5. The bone area fraction in the lateral region was less than 64% at all spinal levels and that in the caudal region was less than 67% at the L4 and L5 levels. Conclusions This study provides initial detailed data on the lumbar pedicle wall microstructure based on micro-computed tomography. These findings may explain why there is a higher incidence of pedicle screw breach in the pedicle lateral and caudal walls.

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In, Tae-sung, Seung-man Yu, and Sang-hun Jang. "The Effects of Force That Pushes Forward Lumbar Region on Sagittal Spinal Alignment When Wearing Backpack." International Journal of Environmental Research and Public Health 16, no. 19 (September 28, 2019): 3643. http://dx.doi.org/10.3390/ijerph16193643.

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The purpose of this study is to design a backpack to push the lumbar region forward and confirm the change in the sagittal plane of the spine using radiography when wearing the backpack to present an effective backpack wearing method that can help spinal alignment. Place the question addressed in a broad context and highlight the purpose of the study. A total of 14 adult volunteers participated in the study. The study was carried out on the subjects without carrying a backpack, with a general backpack, and with a backpack designed to push the lumbar region forward. We investigated cervical, thoracic, lumbar, and sacral alignment under these three conditions. Lumbar lordosis showed a significant decrease in the state of wearing a general backpack compared to the case without a backpack, and a significant increase in the state of wearing a backpack designed to push the lumbar region forward rather than a general backpack. In addition, the sacral slope was significantly increased when carrying the backpack designed to push the lumbar region forward, compared to carrying the general backpack. There was a significant correlation between the sacral and lumbar alignment change when wearing the backpack compared to the state without a backpack. The results of this study indicate that wearing a backpack designed to push the lumbar region forward may contribute to the recovery of lumbar lordosis that is reduced when wearing a general backpack. This may be due to an increase in the sacral slope corresponding to the inferior angle of lumbar spine.

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Devkota, Pramod, R. Krishnakumar, and J. Renjith Kumar. "Surgical Management of Pyogenic Discitis of Lumbar Region." Asian Spine Journal 8, no. 2 (2014): 177. http://dx.doi.org/10.4184/asj.2014.8.2.177.

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Cho, Jae-Lim, Chang-Nam Kang, Ye-Soo Park, and Jin-Woo Choe. "Tumoral Calcinosis at Lumbar Region - A Case Report -." Journal of Korean Society of Spine Surgery 14, no. 3 (2007): 207. http://dx.doi.org/10.4184/jkss.2007.14.3.207.

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Fragulidis, GP, PM Lykoudis, CA Georgiou, A. Melemeni, KD Chondrogiannis, A. Karakatsanis, and E. Vouza. "Subcutaneous granular cell tumour of the lumbar region." Journal of Cutaneous and Aesthetic Surgery 4, no. 2 (2011): 132. http://dx.doi.org/10.4103/0974-2077.85039.

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TURGUT, Mehmet, Ömer Faruk SENDUR, and Mustafa GÜREL. "Brucellar Spondylodiscitis in the Lumbar Region-Case Report-." Neurologia medico-chirurgica 43, no. 4 (2003): 210–12. http://dx.doi.org/10.2176/nmc.43.210.

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Vyshlova, I., S. Karpov, and A. Starodubtcev. "Non-pharmacological therapy of pain in lumbar region." Journal of the Neurological Sciences 381 (October 2017): 854–55. http://dx.doi.org/10.1016/j.jns.2017.08.2407.

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Gu, Yaoming, Nabil A. Ebraheim, Rongming Xu, Anthony T. Rezcallah, and Richard A. Yeasting. "Anatomic Considerations of the Posterolateral Lumbar Disk Region." Orthopedics 24, no. 1 (January 2001): 56–58. http://dx.doi.org/10.3928/0147-7447-20010101-20.

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Nakipoglu, Güldal Funda. "The Biomechanics of the Lumbosacral Region In Acute And Chronic Low Back Pain Patients." Pain Physician 4;11, no. 8;4 (August 14, 2008): 505–11. http://dx.doi.org/10.36076/ppj.2008/11/505.

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Background: A previous study examined the relationship between the sacral inclination angle (SIA), lumbosacral angle (LSA) and sacral horizontal angle (SHA) and spinal mobility in acute low back pain and chronic low back pain patients. We chose to investigate the lumbar lordosis angle, segmental lumbar lordosis angle, SIA, LSA and SHA in acute and chronic low back pain (LBP) patients as well as the correlation between spinal stability and these angles. Objectives: To investigate the biomechanics of the lumbosacral spine region in acute and chronic LBP patients, as well as to examine the correlation between spinal stability and lumbosacral angles. Study Design: Randomized controlled evaluation Setting: Physical Medicine and Rehabilitation outpatient clinic Methods: Sixty participants with LBP were recruited and categorized as either acute LBP (pain < 3 months) or chronic LBP (pain > 6 months), with 30 subjects in each group. All subjects underwent standing, lateral lumbosacral x-rays, which were analyzed for lumbar stability, SIA, LSA, SHA, lumbar lordosis angle and segmental lumbar lordosis angles. Results: The mean age of the ALBP subjects was 41.00 ± 11.63 (18 – 66) and that of the chronic LBP subjects 49.26 ± 15.6 (22-74), with females comprising 50% of the acute LBP group and 73.3% of the chronic LBP group. Lumbar stability was observed in 62.1% of acute LBP patients and 36.8% of chronic LBP patients. A statistically significant difference was found between the 2 groups in terms of age, gender, and lumbar stability. There was no statistical difference regarding SIA, LSA, SHA, total and segmental lordosis angles between acute and chronic LBP patients (p>0.05). Conclusion: We were unable to find a difference between the radiological values for the shape of the SIA, LSA, SHA, and total and segmental lordosis as noted on screening x-ray techniques regarding the occurrence of acute or chronic LBP, but a statistically significant difference was found for lumbar stability. Further extensive studies are needed to examine lumbar stability and its relationship between angles of lumbosacral region. Key words: biomechanic, acute low back pain, chronic low back pain, lumbar stability, lumbosacral, sacral, lumbar lordosis

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Weber, Vinicius Muller Reis, Marcelo Romanzini, Marcos Roberto Queiroga, Camila Panchoni, Julio Cesar da Costa, Luiz Augusto da Silva, Bruno Sergio Portela, and Enio Ricardo Vaz Ronque. "Associations between strength, flexibility, and painful symptomology in university staff." Work 67, no. 3 (December 1, 2020): 689–96. http://dx.doi.org/10.3233/wor-203318.

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BACKGROUND: In the adult population, the work environment and physical fitness levels are directly related to the onset of musculoskeletal pain, repetitive strain injuries, and decreased blood circulation. Although low levels of muscle strength and flexibility may lead to a higher prevalence of pain, specific anatomic regions are poorly addressed. OBJECTIVE: To investigate the prevalence of musculoskeletal pain and the association between strength or flexibility and pain in university staff. METHODS: The sample was composed of 110 members of staff from a university in Guarapuava-PR. Body mass and height values were obtained, from which the BMI was calculated. The pain evaluation was performed by means of a questionnaire, analyzing the intensity, frequency, and anatomical region. The subjects were then submitted to strength (right and left hand grip, lumbar traction, lower limb traction) and flexibility tests (sit and reach test). RESULTS: The anatomical region with the highest prevalence of pain was the lumbar region (43.4%). When the association between the presence of pain and flexibility was performed, only the lumbar traction presented significant results, with the weakest group demonstrating pain (OR: 3.47 [1.27 – 9.49]). CONCLUSION: The results demonstrate that low levels of strength in the lumbar region are associated with the presence of painful symptomatology.

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Jones, Katrina Elizabeth. "New insights on equid locomotor evolution from the lumbar region of fossil horses." Proceedings of the Royal Society B: Biological Sciences 283, no. 1829 (April 27, 2016): 20152947. http://dx.doi.org/10.1098/rspb.2015.2947.

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The specialization of equid limbs for cursoriality is a classic case of adaptive evolution, but the role of the axial skeleton in this famous transition is not well understood. Extant horses are extremely fast and efficient runners, which use a stiff-backed gallop with reduced bending of the lumbar region relative to other mammals. This study tests the hypothesis that stiff-backed running in horses evolved in response to evolutionary increases in body size by examining lumbar joint shape from a broad sample of fossil equids in a phylogenetic context. Lumbar joint shape scaling suggests that stability of the lumbar region does correlate with size through equid evolution. However, scaling effects were dampened in the posterior lumbar region, near the sacrum, which suggests strong selection for sagittal mobility in association with locomotor–respiratory coupling near the lumbosacral joint. I hypothesize that small-bodied fossil horses may have used a speed-dependent running gait, switching between stiff-backed and flex-backed galloping as speed increased.

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Szczepanik, M. P., P. M. Wilkołek, M. Pluta, Ł. R. Adamek, M. Gołyński, Z. J. H. Pomorski, and W. Sitkowski. "The examination of biophysical skin parameters (transepidermal water loss, skin hydration and pH value) in different body regions in Polish ponies." Polish Journal of Veterinary Sciences 16, no. 4 (December 1, 2013): 741–47. http://dx.doi.org/10.2478/pjvs-2013-0105.

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Abstract The purpose of this study was to evaluate transepidermal water loss, skin hydration and skin pH in normal polish ponies. Twelve ponies of both sexes were examined in the study. Measurements were taken from seven different sites: the neck region, the shoulder, thorax, lumbar, inguinal, lip region and the pinna. In each of the regions transepidermal water loss (TEWL), skin hydration and skin pH were measured. For transepidermal water loss, the lowest values were observed in the pinna (10.54 g/hm2), while the highest values were observed in the lip region (30.98 g/hm2). In the case of skin hydration the lowest values were observed for the thorax region (1.96 CU), and the highest for the lip region (48.28 CU). For skin pH, the lowest results were obtained in the pinna (7.03), and the highest in the lumbar region (8.05).

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Machado, Raniery Soares Sobreira, Raquel Carlos de Brito, Jairo Fernandes Frutuosos, André Luís Sant'Anna, Francisco Anselmo Magalhães, Vital Maria dos Santos Sobreira Machado, and Hermes Melo Teixeira Batista. "GRYNFELTT HERNIA INITIALLY DIAGNOSED AS LIPOMA: A CASE REPORT." Amadeus International Multidisciplinary Journal 3, no. 6 (April 30, 2019): 1–8. http://dx.doi.org/10.14295/aimj.v3i6.60.

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Abstract: Lumbar hernia is a disease that presents unsual and difficult diagnosis. It is most prevalent in males and the elderly. It is presented the case of a 70-year-old male patient with previous trauma in the lumbar region 30 years ago and since then presented as a tumor in that region. He asked for a medical help and, initially, his case was diagnosed as a lipoma, but then Grynfeltt's hernia was identified and properly repaired. Keywords: Lumbar hernia; Grynfeltt hernia; superior lumbar hernia

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Weatherley, Christopher Roy, Ihab Mohammad Emran, and Richard Leonard Martyn Newell. "A modification of the standard midline posterior approach to the intertransverse area of the lumbar spine." Annals of The Royal College of Surgeons of England 92, no. 1 (January 2010): 19–22. http://dx.doi.org/10.1308/003588410x12518836440081.

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A midline approach to the lumbar region is most frequently used for posterior lumbar spine surgery. The exposure of the deeper layer of muscles, however, is imprecise and can entail substantial tissue damage and blood loss. During 10 years of operative surgical experience, we have developed an improved and less traumatic technique for exposure of the lumbar transverse processes and intertransverse region in which the tendons of multifidus and longissimus muscles are isolated at every level and divided laterally to the facet joints. This method eases identification and accurate cauterisation of the subjacent arteries, thereby reducing tissue damage and blood loss. It takes no more time and clarifies the exposure of the lumbar transverse processes and intertransverse region. Cadaveric dissection confirms the muscular and arterial anatomy of the region. We recommend use of this modified approach to improve standard practice.

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Islam, Shahnoor, AKM Amirul Morshed, Md Ashraf Ul Huq, Md Mahbub-Ul Alam, Susankar Kumar Mondal, and Kaniz Hasina. "Bilateral Lumbar Hernia - a Rare Occurence in Infant." Journal of Paediatric Surgeons of Bangladesh 1, no. 2 (July 15, 2014): 162–65. http://dx.doi.org/10.3329/jpsb.v1i2.19537.

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Lumbar hernias are rare in children. We report a case of bilateral lumbar hernia in a 39 days old boy who was admitted at pediatric surgery department in Dhaka Medical College Hospital with the chief complaints of bilateral flank swellings since birth. There were no urinary or bowel complaints. Palpation revealed reducible, non-tender, soft to firm swellings involving iliolumbar region in left and lumbar region in right . These were increased on crying. On auscultation bowel sounds were present in left side and absent in right side. There were no other congenital anomalies.Ultrasonography revealed herniated bowel loops in left iliolumbar region and mild pelvicalicial dilatation in left kidney and slightly bigger right kidney in right lumbar region. On the basis of these findings a diagnosis of congenital bilateral lumbar hernias were made. Closer of the defects were done by prosthetic material and non- absorbable suture material. He came back for follow-up after 2 weeks, 4 weeks and 6 weeks. Defects were clinically absent and the patient was pain and recurrence-free.DOI: http://dx.doi.org/10.3329/jpsb.v1i2.19537

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Rutka, James T., Richard E. George, George Davidson, and Harold J. Hoffman. "Low-Grade Astrocytoma of the Tectal Region as an Unusual Cause of Knee Pain: Case Report." Neurosurgery 29, no. 4 (October 1, 1991): 608–12. http://dx.doi.org/10.1227/00006123-199110000-00023.

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Abstract A 12-year-old boy was investigated for knee pain and contractures, and was found to have an intraspinal tumor of a lumbar nerve root and a tumor in the tectal region, both low-grade astrocytomas, We postulated that the tectal region astrocytoma metastasized to the lumbar intraspinal region. After surgery, the child underwent focal irradiation to the posterior fossa supplemented by craniospinal irradiation and a boost dose to the region of the lumbar spinal tumor. A low-grade astrocytoma rarely presents as spinal metastasis. This case may represent the first of a primary tectal low-grade astrocytoma manifesting as a symptomatic spinal mass.

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Gramatikova, Mariya, Stamenka Mitova, and Nasko Valchev. "EFFECT OF HYDROTHERAPY ON CHRONIC PAIN IN THE LUMBAR REGION." Journal of IMAB - Annual Proceeding (Scientific Papers) 26, no. 4 (December 21, 2020): 3485–89. http://dx.doi.org/10.5272/jimab.2020264.3485.

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Purpose: To develop and study the effectiveness of methods and algorithms using a specialized magnetotherapy with underwater water-jet massage for chronic lumbar pain. Material/Methods: 30 subjects from two experimental groups (EG-1 from 15 athletes and EG-2 from 15 non-athletes) were examined, all with chronic lumbar pain. Testing is performed - before and after one month of physiotherapy. The test battery includes: anthropometry (height, body weight); visual-analogue pain scale; Laseg test - for the neurodynamics of n.ischiadicus. Physiotherapy includes hydrotherapy, with a water temperature of 360 – 370 and magnetotherapy with a duration of 30 - 35 min - treatment of the paravertebral muscle in the lumbar region, gluteus and lower limbs - dorsal and ventral. The procedures are applied 3 times a week for one month. Results: Methods and algorithms using a specialized magnetotherapy with underwater water-jet massage for patients with chronic lumbar pain have been developed. Pain on the Visual-Analog Scale of EG-1 athletes was studied - before physiotherapy (with hydrotherapy) X= 4.93±1.39mm, V% = 28.12%, which is an indicator of severe pain in the lumbar region. After 30 days, physiotherapy was reduced to X= 1.53±0.99mm, at V% = 64.59%. Its decrease is 31.03%, P<0.01. Pain beforehysiotherapy was found in EG-2 X= 6.87±1.64mm, at V% = 23.91%. After physiotherapy, it is reduced to X= 1.93±1.49mm, at V%=76.89%, P<0.01. A study of the neurodynamics of n.ischiadicus, through the Laseg test, found that passive flexion in the hip joint of the healthy leg - before physiotherapy with EG-1 hydrotherapy wasX=76.33±8.76o, at V% = 11.47%. After hydrotherapy increased to X= 86.33±5.51o, at V%=6.37%. Passive flexion in the hip joint of the injured leg before hydrotherapy was detected in EG-1. X= 69.67±10.43o, which indicates its strong limit. Post-hydrotherapy X= 80.33±10.08o, at V%=12.55%. P<0.0. In EG-2, the passive flexion in the hip joint – before hydrotherapy, the healthy leg was X= 71.67±14.1o, V% = 19.67%. After hydrotherapy increased to X= 81.53±8.37o. In V% = 10.26%. In the injured leg, passive flexion - before hydrotherapy wasv X= 71.00±11.37o, after it X= 82.07±7.70o, V% = 9.39%. P<0.01. Conclusion: The proven technique and algorithms of hydrotherapy, with a specialized with underwater water-jet massage, is effective for the recovery of persons with chronic lumbar pain. The technique reduces the neurological and pain symptoms and the restoration of n.ischiadicus.

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Kirchmair, Lukas, Birgit Enna, Gottfried Mitterschiffthaler, Bernhard Moriggl, Manfred Greher, Peter Marhofer, Stephan Kapral, and Ingmar Gassner. "Lumbar Plexus in Children." Anesthesiology 101, no. 2 (August 1, 2004): 445–50. http://dx.doi.org/10.1097/00000542-200408000-00026.

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Background Pediatric regional anesthesia has gained increasing interest over the past decades. The current study was conducted to investigate the lumbar paravertebral region and the lumbar plexus at L3-L4 and L4-L5 by means of sonography to obtain fundamentals for the performance of ultrasound-guided posterior lumbar plexus blocks. Methods Thirty-two children (12 boys, 20 girls) with American Society of Anesthesiologists physical status I or II were enrolled in the current study. The lumbar paravertebral region was visualized at L3-L4 and L4-L5 on two corresponding posterior sonograms (longitudinal, transverse). The lumbar plexus had to be delineated, and skin-plexus distances were measured. In a series of five pediatric patients undergoing inguinal herniotomy, ultrasound-guided posterior lumbar plexus blocks at L4-L5 were performed. Results The children were stratified into three age groups (group 1: > 3 yr and </= 5 yr; group 2: > 5 yr and </= 8 yr; group 3: > 8 yr and </= 12 yr). The lumbar plexus could be delineated at L3-L4 and L4-L5 in 19 of 20 cases in group 1, in 17 of 20 cases in group 2, in 22 of 24 cases at L3-L4 in group 3, and in 16 of 24 cases at L4-L5 in group 3. In all patients, the lumbar plexus was situated within the posterior part of the psoas major muscle. Skin-plexus distances showed statistical significant differences between groups 1 and 3 and between groups 2 and 3. The strongest positive correlation existed between skin-plexus distances and the children's weight. Ultrasound guidance enabled safe und successful posterior approaches to the lumbar plexus, thus resulting in effective anesthesia and analgesia of the inguinal region. Conclusions Sonography of the lumbar plexus in children proved to be feasible. Skin-plexus distances correlated with the children's weight rather than with their age. The sonographic findings were fundamental for the performance of successful ultrasound-guided posterior approaches in a small group of pediatric patients.

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B. B., Sunil Kumar, Ashwini Kumar Kumar Choudhary, and Lavanya Raghupathi. "Primary lumbar hernia: a rarely encountered ventral hernia." International Surgery Journal 7, no. 5 (April 23, 2020): 1669. http://dx.doi.org/10.18203/2349-2902.isj20201892.

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Ventral hernia is a fascial defect located on the abdominal wall. Primary ventral hernias are named as umbilical, epigastric, spigelian and lumbar hernias. A lumbar hernia is a parietal wall defect that may occur anywhere in the lumbar region between the 12th rib and the iliac crest. A 47-year-old female, came with complaints of mass in left lower abdomen since 2 months. On clinical examination a defect of 8 × 8 cm was felt in the left lumbar region with positive cough impulse. CECT abdomen and pelvis was done to confirm lumbar hernia. Patient underwent mesh repair for the same. Lumbar and flank hernias are uncommon and are a challenge to treat for any general surgeon. Surgery is considered gold standard either an open mesh repair or laparoscopically.

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Akgul, Osman, and Ahmet Ferruh Gezen. "A Case of Lumbar Region Ganglion Cyst Causing Radiculopathy." Sinir Sistemi Cerrahisi Dergisi 4, no. 1 (May 2, 2014): 9–13. http://dx.doi.org/10.5222/sscd.2014.009.

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Istemen, Ismail, Semih Olguner, Ali Arslan, and Vedat Acik. "Morphometric MRI assessment of lumbar region in healthy individuals." Annals of Medical Research 27, no. 9 (2020): 2352. http://dx.doi.org/10.5455/annalsmedres.2020.03.258.

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Jang, Yoon Jung, Suk Yun Kang, Young-Min Lim, Seok-Beom Kwon, San Jung, and Sung Hee Hwang. "Lumbar Radiculopathy-Mimicking Cortical Infarction of the Precentral Region." Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques 39, no. 3 (May 2012): 400–401. http://dx.doi.org/10.1017/s0317167100022228.

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Canton Kessely, Yannick, Aboubacar Aouami, Li-iyané Olivier Ouambi, Félicien G. Toudjingar, Ndolembai S. Njesada, John Jabang Nute, Adamou Abassi, et al. "Child plexiform neurofibroma of the lumbar region. Case report." Interdisciplinary Neurosurgery 26 (December 2021): 101362. http://dx.doi.org/10.1016/j.inat.2021.101362.

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Nakayama, Kiyomi, Hiroshi Nishimaru, Makito Iizuka, Shigeru Ozaki, and Norio Kudo. "Rostrocaudal Progression in the Development of Periodic Spontaneous Activity in Fetal Rat Spinal Motor Circuits In Vitro." Journal of Neurophysiology 81, no. 5 (May 1, 1999): 2592–95. http://dx.doi.org/10.1152/jn.1999.81.5.2592.

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Rostrocaudal progression in the development of periodic spontaneous activity in fetal rat spinal motor circuits in vitro. Developmental changes in the periodic spontaneous bursts in cervical and lumbar ventral roots (VRs) were investigated using isolated spinal cord preparations obtained from rat fetuses at embryonic days ( E) 13.5–18.5. Spontaneous bursts were observed in the cervical VR at E13.5–17.5, and in the lumbar VR at E14.5–17.5. Bursts occurrence in the cervical and lumbar VRs was correlated in a 1:1 fashion at E14.5–16.5. The bursts in the cervical VR preceded those in the lumbar VR at E14.5, but the latter came to precede the former by E16.5. The interval between spontaneous bursts in the lumbar VR was greatly prolonged after spinal cord transection at the midthoracic level at E14.5, whereas that in the cervical VR became significantly longer at E14.5–16.5. These results suggest that the dominant neuronal circuit initiating the spontaneous bursts shifts from cervical to lumbar region during this period. Bath application of a glutamate receptor antagonist, kynurenate (4 mM), had little effect on the spontaneous bursts in either cervical or lumbar VRs at E14.5–15.5. At E16.5, kynurenate abolished the spontaneous bursts in the cervical VR. Concomitant application of kynurenate and strychnine (5 μM), a glycine receptor antagonist, abolished all spontaneous bursts, suggesting that the major transmitter mediating the spontaneous bursts changes from glycine to glutamate in the cervical region by E16.5, but not in the lumbar region during this period.

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Wang, Yu, Qingyu Dou, Jin Yang, Lifeng Zhang, Yuqing Yan, Zhiyu Peng, Chuan Guo, and Qingquan Kong. "Percutaneous Endoscopic Lumbar Decompression for Lumbar Lateral Spinal Canal Stenosis: Classification of Lateral Region of Lumbar Spinal Canal and Surgical Approaches." World Neurosurgery 119 (November 2018): e276-e283. http://dx.doi.org/10.1016/j.wneu.2018.07.133.

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Khaladkar, Sanjay Mhalasakant, and Akshay Mahadev Waghmode. "Unusual Locations of Pancreatic Pseudocysts in Lumbar Triangle, Psoas Muscle and Intercostal Space, and Obturator Externus." Journal of Clinical Imaging Science 8 (August 24, 2018): 33. http://dx.doi.org/10.4103/jcis.jcis_29_18.

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Pancreatic pseudocyst develops as a complication of both acute and chronic pancreatitis. Although the common location of pseudocyst is lesser sac, extension of pseudocyst can occur into mesentery, retroperitoneum, inguinal region, scrotum, liver, spleen, mediastinum, pleura, and lung. Extension of pseudocyst into psoas muscle and lumbar triangle is extremely rare. The development of pseudocyst in lumbar triangle is radiologically equivalent and further extension of Grey Turner's sign seen clinically in acute pancreatitis. This extension occurs due to the destructive nature of pancreatic enzymes. The lumbar triangle is the site of anatomic weakness in the lateral abdominal wall in the lumbar region. We report the case of a 35-year-old alcoholic male patient who presented with abdominal pain followed by distension and swelling in the right lumbar region for 1 week. On computed tomography scan of the abdomen, acute-on-chronic pancreatitis with multiple pseudocysts in the right posterior pararenal space, extending through the right lumbar triangle in the right lateral abdominal wall, right posterior paraspinal muscles, right iliopsoas, right obturator externus, and medial aspect of the right upper thigh, beneath anterior abdominal wall in the upper abdomen and in the right lateral thoracic wall through the right 11th intercostal space, was detected.

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ETIENNE, ANNE-LAURE, DOMINIQUE PEETERS, and VALERIA BUSONI. "ULTRASONOGRAPHIC PERCUTANEOUS ANATOMY OF THE CAUDAL LUMBAR REGION AND ULTRASOUND-GUIDED LUMBAR PUNCTURE IN THE DOG." Veterinary Radiology & Ultrasound 51, no. 5 (June 10, 2010): 527–32. http://dx.doi.org/10.1111/j.1740-8261.2010.01705.x.

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Kong, W. Z., V. K. Goel, and L. G. Gilbertson. "Prediction of Biomechanical Parameters in the Lumbar Spine During Static Sagittal Plane Lifting." Journal of Biomechanical Engineering 120, no. 2 (April 1, 1998): 273–80. http://dx.doi.org/10.1115/1.2798312.

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A combined approach involving optimization and the finite element technique was used to predict biomechanical parameters in the lumbar spine during static lifting in the sagittal plane. Forces in muscle fascicles of the lumbar region were first predicted using an optimization-based force model including the entire lumbar spine. These muscle forces as well as the distributed upper body weight and the lifted load were then applied to a three-dimensional finite element model of the thoracolumbar spine and rib cage to predict deformation, the intradiskal pressure, strains, stresses, and load transfer paths in the spine. The predicted intradiskal pressures in the L3-4 disk at the most deviated from the in vivo measurements by 8.2 percent for the four lifting cases analyzed. The lumbosacral joint flexed, while the other lumbar joints extended for all of the four lifting cases studied (rotation of a joint is the relative rotation between its two vertebral bodies). High stresses were predicted in the posterolateral regions of the endplates and at the junctions of the pedicles and vertebral bodies. High interlaminar shear stresses were found in the posterolateral regions of the lumbar disks. While the facet joints of the upper two lumbar segments did not transmit any load, the facet joints of the lower two lumbar segments experienced significant loads. The ligaments of all lumbar motion segments except the lumbosacral junction provided only marginal moments. The limitations of the current model and possible improvements are discussed.

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Aldayel, Abdulrahman Yousef, Muteb Mousa Alharbi, Mohammed Saud Almasri, and Saleh Mansoor Alkhonezan. "Public knowledge and attitude toward lumbar puncture among adults in Riyadh, Saudi Arabia: A cross-sectional study." SAGE Open Medicine 7 (January 2019): 205031211987106. http://dx.doi.org/10.1177/2050312119871066.

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Objective: The aim of this study is to evaluate knowledge of and attitudes toward the lumbar puncture procedure among adults in Riyadh region, Saudi Arabia, 2018. Methods: This study used a quantitative cross-sectional evaluation of the responses of adults aged ⩾18 years from the Saudi Telecom Company database in the Riyadh region of Saudi Arabia to an online survey between October and December 2018. The questionnaire included questions on knowledge, attitudes, and demography. The questionnaire was pretested and validated (Cronbach’s alpha = 0.701). Results: Of 1500 questionnaires, 1223 (81.5%) were returned and included in the analysis. In the study, 57.7% of the participants were aged 18–25 years, and 58.5% of the participants were females. Only 235 (19.2%) participants had an accepted knowledge level of lumbar puncture. The attitudes of the majority of the participants ( n = 1151, 94%) to lumbar puncture were acceptable. A multivariate logistic regression test revealed a significant association between an acceptable knowledge level and acceptable attitude level (odds ratio = 2.30, 95% confidence interval = 1.06–5.66). A significant association was also found with ages over 46 years old (odds ratio = 12.99, 95% confidence interval = 4.45–37.9). The attitudes level toward lumbar puncture had a significant negative association among the participants who had a fear of injections in the lumbar region (odds ratio = 0.46, 95% confidence interval = 0.3–0.68). Conclusion: There is a lack of appropriate knowledge of the lumbar puncture procedure among the public which predict an unacceptable attitude toward lumbar puncture. Improvements in public education could improve public awareness of the clinical importance/value and complications of lumbar puncture.

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Hogan, Quinn H., Thomas A. Stekiel, Anna Stadnicka, Zeljko J. Bosnjak, and John P. Kampine. "Region of Epidural Blockade Determines Sympathetic and Mesenteric Capacitance Effects in Rabbits." Anesthesiology 83, no. 3 (September 1, 1995): 604–10. http://dx.doi.org/10.1097/00000542-199509000-00020.

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Background The mechanisms producing hemodynamic changes during epidural anesthesia are incompletely understood. The role of capacitance changes in the splanchnic venous bed can be clarified by comparing blocks of differing segmental distributions. Specifically, we speculated that blocks that include the innervation to the mesenteric circulation alter hemodynamics, sympathetic activity, and venous capacitance to a greater extent than blocks without blockade of sympathetic nerves to this critical vascular bed. Methods Rabbits were studied during alpha-chloralose anesthesia and mechanical ventilation. Sympathetic efferent nerve activity to the mesenteric vessels was measured by surgically placed electrodes, and mesenteric vein diameter was measured by videomicroscopy. Heart rate and mean arterial pressure were monitored by intraarterial cannulation. Responses were compared after administration of epidural lidocaine using a dose and catheter level that limited anesthetic to lumbar levels (lumbar group) or thoracic levels (thoracic group). In addition, hemodynamic responses were recorded after thoracolumbar block in animals receiving alpha-chloralose but breathing spontaneously (spontaneous ventilation group) and in awake animals (awake group). Results Mean arterial pressure decreased 38.3 +/- 5.8% in the thoracic group but only 16.5 +/- 2.8 in the lumbar group. Sympathetic efferent nerve activity decreased in the thoracic group but increased in the lumbar group. An increase in vein diameter followed thoracic epidural anesthesia, but venoconstriction was observed after lumbar epidural block. The addition of intravenous sedation with alpha-chloralose did not increase the hypotensive effect of epidural anesthesia in this model. Conclusions Block of sympathetic fibers to the splanchnic circulation with thoracic epidural lidocaine produces mesenteric venodilatation that contributes to hypotension in rabbits. A lesser decrease in blood pressure follows blocks limited to lower segments, because baroreceptor stimulation produces increased splanchnic sympathetic activity and mesenteric venoconstriction. Responses in this model are comparable with and without general anesthesia and mechanical ventilation. To minimize hemodynamic consequences, epidural blockade should ideally be confined to the fewest necessary segments, avoiding splanchnic innervation if possible.

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Yarikov, Anton, Maxim Shpagin, Iliya Nazmeev, Sergey Gorelov, and Olga Perlmutter. "Lumbar periarticular cysts of arcorray joint." Vestnik nevrologii, psihiatrii i nejrohirurgii (Bulletin of Neurology, Psychiatry and Neurosurgery), no. 3 (March 1, 2020): 47–57. http://dx.doi.org/10.33920/med-01-2003-06.

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The immediate and long-term results of treatment of 30 patients with severe pain syndrome of the lumbar region, who underwent operations on denervation of DOS, were studied. The aim of the study was to evaluate the effectiveness of minimally invasive technologies for the treatment of pain in the lumbar region (denervation of DOS), to study the near and distant results of these treatment methods. Denervation DOS is an effective minimally invasive method for the treatment of facet syndrome caused by spondylarthrosis. It allows in the early and distant postoperative periods to significantly reduce the pain syndrome and improve the quality of life of patients.

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Stemper, Brian D., Jamie L. Baisden, Narayan Yoganandan, Barry S. Shender, and Dennis J. Maiman. "Mechanical yield of the lumbar annulus: a possible contributor to instability." Journal of Neurosurgery: Spine 21, no. 4 (October 2014): 608–13. http://dx.doi.org/10.3171/2014.6.spine13401.

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Object Segmental instability in the lumbar spine can result from a number of mechanisms including intervertebral disc degeneration and facet joint degradation. Under traumatic circumstances, elevated loading may lead to mechanical yield of the annular fibers, which can decrease load-carrying capacity and contribute to instability. The purpose of this study was to quantify the biomechanics of intervertebral annular yield during tensile loading with respect to spinal level and anatomical region within the intervertebral disc. Methods This laboratory-based study incorporated isolated lumbar spine annular specimens from younger and normal or mildly degenerated intervertebral discs. Specimens were quasi-statically distracted to failure in an environmentally controlled chamber. Stress and strain associated with yield and ultimate failure were quantified, as was stiffness in the elastic and postyield regions. Analysis of variance was used to determine statistically significant differences based on lumbar spine level, radial position, and anatomical region of the disc. Results Annular specimens demonstrated a nonlinear response consisting of the following: toe region, linear elastic region, yield point, postyield region, and ultimate failure point. Regional dependency was identified between deep and superficial fibers. Mechanical yield was evident prior to ultimate failure in 98% of the specimens and occurred at approximately 80% and 74% of the stress and strain, respectively, to ultimate failure. Fiber modulus decreased by 34% following yield. Conclusions Data in this study demonstrated that yielding of intervertebral disc fibers occurs relatively early in the mechanical response of the tissues and that stiffness is considerably decreased following yield. Therefore, yielding of annular fibers may result in decreased segmental stability, contributing to accelerated degeneration of bony components and possible idiopathic pain.

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Tsimkhes, I. "Lumbar plexus conduction anesthesia Degenhardt (Zentr. f. Chir., 1926, № 25)." Kazan medical journal 22, no. 8 (September 4, 2021): 967. http://dx.doi.org/10.17816/kazmj78639.

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Degenhardt (Zentr. F. Chir., 1926, No. 25) in 48 cases successfully applied conduction anesthesia of the lumbar plexus according to Stchlesinger y during operations in the groin and pelvic regions and on the lower extremities, and for inguinal hernias he had to additionally anesthetize D12, and for operations in the pelvic region - n. ischiadicus.

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Grubin, J., A. H. Doshi, P. L. Kuflik, and D. Fitzpatrick. "Morel-Lavallée Lesion of the Lumbar Region: A Case Report." Neurographics 6, no. 3 (May 1, 2016): 171–73. http://dx.doi.org/10.3174/ng.3160156.

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