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Journal articles on the topic 'Tendon defect'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

McCarron, Jesse A., Kathleen A. Derwin, Michael J. Bey, et al. "Failure With Continuity in Rotator Cuff Repair “Healing”." American Journal of Sports Medicine 41, no. 1 (2012): 134–41. http://dx.doi.org/10.1177/0363546512459477.

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Background: Ten to seventy percent of rotator cuff repairs form a recurrent defect after surgery. The relationship between retraction of the repaired tendon and formation of a recurrent defect is not well defined. Purpose/Hypotheses: To measure the prevalence, timing, and magnitude of tendon retraction after rotator cuff repair and correlate these outcomes with formation of a full-thickness recurrent tendon defect on magnetic resonance imaging, as well as clinical outcomes. We hypothesized that (1) tendon retraction is a common phenomenon, although not always associated with a recurrent defect

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2

Tzoanos, Georgios Nikolaos, Nikolaos Tsavalas, Nikolaos Manidakis, and Alkiviadis Kalliakmanis. "Patellar tendon healing after anterior cruciate ligament reconstruction in football players." Orthopaedic Journal of Sports Medicine 5, no. 2_suppl2 (2017): 2325967117S0004. http://dx.doi.org/10.1177/2325967117s00043.

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Introduction: To investigate the healing process of the harvested patellar tendon at 12±2 and 24±2 months following Bone-Patellar-Bone (BTB) Anterior Cruciate Ligament (ACL) reconstruction. Methods: 30 football players were enrolled in our study and examined at 12±2 and 24±2 months postoperatively. Donor and contralateral tendons evaluated with a high frequency ultrasound transducer. The maximum anteroposterior (MAP) and maximum transverse (MT) diameters of the patellar tendon and associated defect at the site of the tendon incision measured at its proximal, middle and distal thirds. The prese

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3

Zhou, Lingli, Jianwei Wei, Lihong Liu, Shibin Tao, and Zhonggen Dong. "Composite sural neurocutaneous flap with gastrocnemius tendon for repairing defects of Achilles tendon and overlying soft tissue." Journal of Orthopaedic Surgery 28, no. 3 (2020): 230949902097186. http://dx.doi.org/10.1177/2309499020971863.

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Purpose: Defect of Achilles tendon and overlying soft tissue remains a surgical challenge due to its insufficient blood supply and high requirement of function. This study aims to report the clinical efficacy of the composite sural neurocutaneous composite flap with gastrocnemius tendon on the complicated defect of Achilles region. Methods: Seven cases of defects of Achilles tendon and overlying soft tissue were reconstructed by the composite sural neurocutaneous composite flaps with gastrocnemius tendons. It is important to keep the connection between gastrocnemius tendon and deep fascia of t

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4

Wagner, Emilio, Pablo Wagner, Diego Zanolli de Solminihac, et al. "Peroneal Tendon Tears." Foot & Ankle Orthopaedics 2, no. 3 (2017): 2473011417S0000. http://dx.doi.org/10.1177/2473011417s000080.

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Category: Ankle, Basic Sciences/Biologics, Sports Introduction/Purpose: Peroneus brevis tendon tears are frequently diagnosed when ankle instability is present. No clear guideline exists as to when to repair or resect peroneal tendon tears, as most of the available literature uses Meyer’s work published in 1924 where a risk of spontaneous rupture would exist when less than 50% of the tendon remains undamaged. Our objective was to analyze the mechanical behavior of cadaveric peroneal tendons subjected to an artificially made damage, compromising 66% of its visible width and tested in a cyclic a

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Xu, Feng, Wei Liu, Xian Wei, Hong Li, De Jun Cao, and Yi Lin Cao. "In Vivo and In Vitro Tendon Engineering." Key Engineering Materials 342-343 (July 2007): 9–12. http://dx.doi.org/10.4028/www.scientific.net/kem.342-343.9.

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Tendon is an important supportive tissue of human body responsible for normal physical activity. However, tendon damage and defect remain an important factor for causing disability. The rise of tissue engineering technology provides an effective means of tendon reconstruction and repair, which will bring promise for functional recovery. In our center, tendon engineering is one of major research areas. We have performed the in vivo study by using tenocytes and polyglycolic acid fibers to reconstruct and repair tendon defect in hen and porcine models. The results demonstrated the successful rege

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Urbanschitz, Lukas, Manuel Dreu, Julia Wagner, Reinhard Kaufmann, Julian M. Jeserschek, and Paul Borbas. "Cartilage and extensor tendon defects after headless compression screw fixation of phalangeal and metacarpal fractures." Journal of Hand Surgery (European Volume) 45, no. 6 (2020): 601–7. http://dx.doi.org/10.1177/1753193420919060.

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Osteosynthesis of metacarpal and phalangeal fractures with headless compression screws leads to a defect in the articular surface and possibly damage to the extensor tendons. This study aimed to quantify the articular surface defect and extensor tendon injuries after implant placement in cadaveric hands. Defect size was assessed with computed tomography. Extensor tendon injuries were assessed by direct visualization and measurement after dissection. In the middle phalanx, the defect size in relation to the joint surface was significantly smaller after anterograde screw placement when compared

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7

Steen, H., K. F. Tseng, S. A. Goldstein, and J. E. Carpenter. "Harvest of Patellar Tendon (Bone–Tendon–Bone) Autograft for ACL Reconstruction Significantly Alters Surface Strain in the Human Patella." Journal of Biomechanical Engineering 121, no. 2 (1999): 229–33. http://dx.doi.org/10.1115/1.2835108.

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The purpose of this study was to measure the effect of bone–patellar tendon–bone autograft harvest for anterior cruciate ligament (ACL) reconstruction on the surface strain of the human patella. Through progressive removal of bone from the patella, three different defect shapes as well as the intact patella were tested in each of seven knees. Maximum principal strain and corresponding principal direction were determined from each of three gages around the defect for the four conditions (intact plus three defect shapes). There were no statistically significant differences in overall average sur

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8

Khanna, Vaibhav, Romesh Kohli, Satendar Tulsi, Sandeep Garg, and Divya Upadhyaya. "Functional reconstruction of complex tendo Achilles defect by free latissimus dorsi muscle flap." Indian Journal of Plastic Surgery 45, no. 03 (2012): 572–75. http://dx.doi.org/10.4103/0970-0358.105983.

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ABSTRACTManaging the complex tendo Achilles defect involves reconstructing the Achilles tendon as well as providing soft tissue cover to the heel area. The advent of microsurgery has revolutionised the reconstruction of this difficult defect providing a number of options to the reconstructive surgeon. We present a case of complex tendo Achilles defect reconstructed by the latissimus dorsi free flap.

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9

Buda, Roberto, Francesco Castagnini, Gherardo Pagliazzi, and Sandro Giannini. "Treatment Algorithm for Chronic Achilles Tendon Lesions." Journal of the American Podiatric Medical Association 107, no. 2 (2017): 144–49. http://dx.doi.org/10.7547/15-099.

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Chronic Achilles tendon lesions (CATLs) ensue from a neglected acute rupture or a degenerated tendon. Surgical treatment is usually required. The current English literature (PubMed) about CATLs was revised, and particular emphasis was given to articles depicting CATL classification. The available treatment algorithms are based on defect size. We propose the inclusion of other parameters, such as tendon degeneration, etiology, and time from injury to surgery. Partial lesions affecting less than (I stage) or more than (II stage) half of the tendon should be treated conservatively for healthy ten

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10

Song, Haixin, Zi Yin, Tao Wu, et al. "Enhanced Effect of Tendon Stem/Progenitor Cells Combined With Tendon-Derived Decellularized Extracellular Matrix on Tendon Regeneration." Cell Transplantation 27, no. 11 (2018): 1634–43. http://dx.doi.org/10.1177/0963689718805383.

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Decellularized extracellular matrices have been clinically used for tendon regeneration. However, only a few systematic studies have compared tendon stem/progenitor cells to mesenchymal stromal cells on the tendon-derived decellularized matrix. In the present study, we prepared extracellular matrix derived from porcine tendons and seeded with tendon stem/progenitor cells, embryonic stem cell-derived mesenchymal stromal cells or without stem cells. Then we implanted the mixture (composed of stem cells and scaffold) into the defect of a rat Achilles tendon. Next, 4 weeks post-surgery the regener

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11

Gong, Shilin, and Xin Feng. "Detection of grouting defects in prestressed tendon ducts using distributed fiber optic sensors." Structural Health Monitoring 19, no. 4 (2019): 1273–86. http://dx.doi.org/10.1177/1475921719880318.

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To compensate for the shortcomings of the existing point detection methods for grouting defects in prestressed tendon ducts, such as low detection efficiency, stringent detection environment, and easy omission of grouting defects, this article presents a distributed detection approach to detect the grouting defects in tendon ducts. The main objective of the research pertained to the development of a method for accurate identification and location of grouting defects and qualitative evaluation of the size of grouting defects using distributed fiber optic sensors with active heating. Using the t

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12

Al-Shara, Mohamed Baqir. "A Case Report -Bilateral Giant Achilles Tendon Xanthomas Resection with a Tendon transverse Technique." AL-Kindy College Medical Journal 15, no. 1 (2019): 114–18. http://dx.doi.org/10.47723/kcmj.v15i1.91.

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Background : Xanthomatosis is a disease in which large tendon tumors can occur, especially in the Achilles tendon. This disease is a rare interesting orthopaedic condition. Case Report:A case of a twenty eight year old girl patient with giant bilateral Achilles tendon xanthomas in which both tumors were resected. There was no ulceration on the both sides. The patient was treated by total resection of the lesion and reconstruction using tendon transfer of the Peroneus brevis and Flexor hallusis longus. Postoperative treatment consisted of six weeks lower leg cast immobilization foll

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13

BRANDT, J., L. B. DAHLIN, and G. LUNDBORG. "Autologous Tendons Used as Grafts for Bridging Peripheral Nerve Defects." Journal of Hand Surgery 24, no. 3 (1999): 284–90. http://dx.doi.org/10.1054/jhsb.1999.0074.

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This study was performed to investigate whether autologous collagen and other extracellular matrix components could be used in nerve repair by bridging a 10 mm defect in the rat sciatic nerve. Three models of repair were examined. In the first model, a rat tail tendon was teased and subsequently rolled to form a loose collagen roll which was sutured over the defect. In the second model, an intact tendon was used. In the third model, a teased tendon was pretreated with attachment of nerve segments to each end for 4 weeks before grafting. Both teased and intact tendons supported regeneration, to

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14

Nellas, Zachary J., Brian G. Loder, and Stuart J. Wertheimer. "Reconstruction of an Achilles tendon defect utilizing an Achilles tendon allograft." Journal of Foot and Ankle Surgery 35, no. 2 (1996): 144–48. http://dx.doi.org/10.1016/s1067-2516(96)80031-7.

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15

Wagner, Emilio, Pablo Wagner, Cristian Ortiz, Ruben Radkievich, Felipe Palma, and Rodrigo Guzmán-Venegas. "Biomechanical Cadaveric Evaluation of Partial Acute Peroneal Tendon Tears." Foot & Ankle International 39, no. 6 (2018): 741–45. http://dx.doi.org/10.1177/1071100718760256.

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Background: No clear guideline or solid evidence exists for peroneal tendon tears to determine when to repair, resect, or perform a tenodesis on the damaged tendon. The objective of this study was to analyze the mechanical behavior of cadaveric peroneal tendons artificially damaged and tested in a cyclic and failure mode. The hypothesis was that no failure would be observed in the cyclic phase. Methods: Eight cadaveric long leg specimens were tested on a specially designed frame. A longitudinal full thickness tendon defect was created, 3 cm in length, behind the tip of the fibula, compromising

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Zhang, Cheng-Hao, Yan-Lin Jiang, Liang-Ju Ning, et al. "Evaluation of Decellularized Bovine Tendon Sheets for Achilles Tendon Defect Reconstruction in a Rabbit Model." American Journal of Sports Medicine 46, no. 11 (2018): 2687–99. http://dx.doi.org/10.1177/0363546518787515.

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Background: Achilles tendon (AT) defects frequently occur in trauma and chronic injuries. Currently, no method can satisfactorily reconstruct the AT with completely restored function. Purpose: To evaluate the postoperative outcomes of AT defect reconstruction with decellularized bovine tendon sheets (DBTSs) in a rabbit model. Study Design: Controlled laboratory study. Methods: DBTSs were prepared from bovine tendons after compression, decellularization, antigen extraction, freeze drying, and sterilization. Platelet-rich plasma (PRP) was obtained by differential centrifugation. Sixty-three rabb

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17

Müller, Sebastian A., Nicholas P. Quirk, Julia A. Müller-Lebschi, et al. "Response of the Injured Tendon to Growth Factors in the Presence or Absence of the Paratenon." American Journal of Sports Medicine 47, no. 2 (2018): 462–67. http://dx.doi.org/10.1177/0363546518814534.

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Background: The paratenon is important for Achilles tendon healing. There is much interest in the use of exogenous growth factors (GFs) as potential agents for accelerating the healing of damaged Achilles tendons. Purpose/Hypothesis: The present study used a rat model to study the responses of the injured Achilles tendon to GFs in the presence or absence of the paratenon. The hypothesis was that responses of the injured tendon to GFs would be lower in the absence of a paratenon. Study Design: Controlled laboratory study. Methods: A 4-mm defect was created in the right Achilles tendon of 60 ske

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Kunze, Kyle N., Robert A. Burnett, Kevin K. Shinsako, Charles A. Bush-Joseph, Brian J. Cole, and Jorge Chahla. "Trapezoidal Achilles Tendon Allograft Plug for Revision Quadriceps Tendon Repair With a Large Tendon Defect." Arthroscopy Techniques 8, no. 9 (2019): e1031-e1036. http://dx.doi.org/10.1016/j.eats.2019.05.015.

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Zielaskowski, Lorne A., and Jane Pontious. "Extensor Hallucis Longus Tendon Rupture Repair Using a Fascia Lata Allograft." Journal of the American Podiatric Medical Association 92, no. 8 (2002): 467–70. http://dx.doi.org/10.7547/87507315-92-8-467.

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The authors present a case of a traumatic extensor hallucis longus tendon rupture sustained 2 days after hallux valgus and hammer toe correction. The ruptured tendon, separated by a 6-cm defect, was repaired using a fascia lata allograft. This case demonstrates a serious complication of a commonly performed procedure and a salvage technique useful for dealing with large tendon defects. (J Am Podiatr Med Assoc 92(8): 467-470, 2002)

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20

Tempfer, Herbert, Alexandra Kaser-Eichberger, Christine Lehner, et al. "Bevacizumab Improves Achilles Tendon Repair in a Rat Model." Cellular Physiology and Biochemistry 46, no. 3 (2018): 1148–58. http://dx.doi.org/10.1159/000489057.

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Background/Aims: Effective wound-healing generally requires efficient re-vascularization after injury, ensuring sufficient supply with oxygen, nutrients, and various cell populations. While this applies to most tissues, tendons are mostly avascular in nature and harbor relatively few cells, probably contributing to their poor regenerative capacity. Considering the minimal vascularization of healthy tendons, we hypothesize that controlling angiogenesis in early tendon healing is beneficial for repair tissue quality and function. Methods: To address this hypothesis, Bevacizumab, a monoclonal ant

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Xiao, Han, Yang Chen, Muzhi Li, et al. "Cell-Free Book-Shaped Decellularized Tendon Matrix Graft Capable of Controlled Release of BMP-12 to Improve Tendon Healing in a Rat Model." American Journal of Sports Medicine 49, no. 5 (2021): 1333–47. http://dx.doi.org/10.1177/0363546521994555.

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Background: Achilles tendon (AT) defects often occur in traumatic and chronic injuries. Currently, no graft can satisfactorily regenerate parallel tendinous tissue at the defect site to completely restore AT function. Purpose: To develop a cell-free functional graft by tethering bone morphogenetic protein 12 (BMP-12) on a book-shaped decellularized tendon matrix (BDTM) and to determine whether this graft is more beneficial for AT defect healing than an autograft. Study Design: Controlled laboratory study. Methods: Canine patellar tendon was sectioned into a book shape and decellularized to fab

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Gabler, Carolin, Jan-Oliver Saß, Susann Gierschner, Tobias Lindner, Rainer Bader, and Thomas Tischer. "In Vivo Evaluation of Different Collagen Scaffolds in an Achilles Tendon Defect Model." BioMed Research International 2018 (August 8, 2018): 1–11. http://dx.doi.org/10.1155/2018/6432742.

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In the present study, a newly introduced bovine cross-linked collagen scaffold (test material) was investigated in vivo in an Achilles tendon defect model and compared to a commercially available porcine collagen scaffold (control material). In total, 28 male Sprague Dawley rats (about 400 g) were examined. The defined Achilles tendon defect of 5 mm of the right hind limb was replaced by one of the scaffold materials. After euthanasia, the hind limbs were transected for testing. Biomechanical evaluation was carried out via tensile testing (n = 8 each group, observation time: 28 days). Nonopera

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Jiang, Yongkang, Bo Chen, Wei Liu, and Bin Wang. "Engineering Tendon With a Novel Composite Scaffold and Repairing Monkey Tendon Defect." HAND 11, no. 1_suppl (2016): 103S. http://dx.doi.org/10.1177/1558944716660555gs.

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Pérez-García, Alberto, Juan Ramon Esteban-Vico, Jose María García-Sánchez, et al. "Autologous Patellar Tendon Reconstruction after Total Knee Arthroplasty Infection with Skin Loss: Anatomical Study and Case Report." Journal of Knee Surgery 33, no. 02 (2019): 173–79. http://dx.doi.org/10.1055/s-0038-1677498.

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AbstractDisruption of patellar tendon after total knee arthroplasty (TKA) is a devastating complication. If associated with infection or soft tissue defect, knee arthrodesis is usually indicated. The purpose of this study is to analyze, by means of an anatomical study, the feasibility of our novel technique for reconstruction of extensor apparatus after TKA infections with skin defects, combining gracilis (G) and semitendinosus (ST) tendon autografts and chimeric medial gastrocnemius-sural artery perforator (SAP) flap. In addition, to report on the use of this reconstruction, we described an i

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Ni, Ming, Pauline Po Yee Lui, Yun Feng Rui, et al. "Tendon-derived stem cells (TDSCs) promote tendon repair in a rat patellar tendon window defect model." Journal of Orthopaedic Research 30, no. 4 (2011): 613–19. http://dx.doi.org/10.1002/jor.21559.

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Müller, Sebastian A., Christopher H. Evans, Patricia E. Heisterbach, and Martin Majewski. "The Role of the Paratenon in Achilles Tendon Healing: A Study in Rats." American Journal of Sports Medicine 46, no. 5 (2018): 1214–19. http://dx.doi.org/10.1177/0363546518756093.

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Background: The role of the paratenon in tendon healing is unknown. The present study compares healing in the presence or absence of the paratenon in an Achilles tendon defect model in rats. Hypothesis: Resection of the paratenon impairs tendon healing. Study Design: Controlled laboratory study. Methods: Sixty skeletally mature Sprague Dawley rats were randomly assigned to either a resected paratenon (RP) group or an intact paratenon (IP) group. In all animals, a 4-mm portion of the Achilles tendon was resected in the midsubstance. In the RP group, the paratenon was resected completely. In the

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Roßbach, Björn P., Mehmet F. Gülecyüz, Lena Kempfert, et al. "Rotator Cuff Repair With Autologous Tenocytes and Biodegradable Collagen Scaffold: A Histological and Biomechanical Study in Sheep." American Journal of Sports Medicine 48, no. 2 (2019): 450–59. http://dx.doi.org/10.1177/0363546519892580.

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Background: Large rotator cuff tears still represent a challenging problem in orthopaedics. The use of tenocytes on biomaterials/scaffolds for the repair of large rotator cuff defects might be a promising approach in the field of tendon regeneration. Hypothesis: Cultivated autologous tenocytes seeded on a collagen scaffold lead to enhanced histological and biomechanical results after rotator cuff repair in a sheep model as compared with unseeded scaffolds in an acute setting. Study Design: Controlled laboratory study. Methods: At the tendon-bone junction of the infraspinatus tendon of the righ

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Liu, Wei, Bin Chen, Dan Deng, Feng Xu, Lei Cui, and Yilin Cao. "Repair of Tendon Defect with Dermal Fibroblast Engineered Tendon in a Porcine Model." Tissue Engineering 12, no. 4 (2006): 775–78. http://dx.doi.org/10.1089/ten.2006.12.775.

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Lee, Jung-Woo, Myung-Jin Kim, Jae Hoon Ahn, and Chu-Hwan Byun. "Treatment of Massive Defect in Achilles Tendon with Tendon Allograft: A Case Report." Journal of Korean Foot and Ankle Society 19, no. 3 (2015): 114. http://dx.doi.org/10.14193/jkfas.2015.19.3.114.

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Wang, Liren, Yuhao Kang, Hexin Yan, et al. "Tendon regeneration induced by umbilical cord graft in a rabbit tendon defect model." Journal of Tissue Engineering and Regenerative Medicine 14, no. 8 (2020): 1009–18. http://dx.doi.org/10.1002/term.3052.

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Serra, C. Iván, Paula Navarro, Ricardo Guillem, and Carme Soler. "Use of Frozen Tendon Allograft in Two Clinical Cases: Common Calcaneal Tendon and Patellar Ligament Rupture." Journal of the American Animal Hospital Association 56, no. 6 (2020): 315. http://dx.doi.org/10.5326/jaaha-ms-6870.

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ABSTRACT Many surgical techniques have been described in the literature to repair chronic tendon or ligament ruptures. Although direct approximation of the edges is the surgical technique of choice, the use of synthetic, fascia lata, semitendinosus muscle, and small intestinal submucosa grafts has been described to repair large defects or augment tenous repairs. The aim of this paper was to present the long-term outcome of two clinical cases using a common calcaneal tendon cadaver allograft with subsequent application of platelet-rich plasma for chronic ruptures diagnosed by ultrasound, with a

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Sabapathy, S. Raja, Hari Venkataramani, Latheesh Latheef, and Praveen Bhardwaj. "Reconstruction of segmental defects of Achilles tendon: Is it a must in infected complex defects?" Indian Journal of Plastic Surgery 46, no. 01 (2013): 121–23. http://dx.doi.org/10.4103/0970-0358.113729.

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ABSTRACTLoss of Achilles tendon combined with overlying soft tissue loss is a challenging problem. Multiple techniques like tendon graft with coverage by soft tissue flap or composite flaps have been used. All these options are technically demanding. Reports do exist whereby muscle flaps bridging the defect used as cover in course of time could transmit the tendon force across the defect. We are presenting a case where a free gracilis muscle flap used to cover the soft tissue defect at the Achilles tendon at 2 years follow up provided stable cover and produced active function of the Achilles t

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Zhao, Na, Wen Chen, and Tao Yan. "Application of Different Biomaterials in Achilles Tendon Repair for Exercise Injury." Advanced Materials Research 886 (January 2014): 329–32. http://dx.doi.org/10.4028/www.scientific.net/amr.886.329.

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The rupture of Achilles tendon is hard to self-healing and repair and it is easily left pain and dysfunction. For a long time, the treatment of Achilles tendon defect by many scholars conducted a lot of research, from the tendon autograft, allograft tendon transplantation to the artificial tendon transplantation, tissue engineering tendon transplantation. Practice has proved that these methods have their own advantages and disadvantages. Although the research and application of scaffold materials for tendon tissue engineering has achieved some success, but the application materials or the pres

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Conroy, Christine, Paul Sethi, Craig Macken, et al. "Augmentation of Distal Biceps Repair With an Acellular Dermal Graft Restores Native Biomechanical Properties in a Tendon-Deficient Model." American Journal of Sports Medicine 45, no. 9 (2017): 2028–33. http://dx.doi.org/10.1177/0363546517701426.

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Background: The majority of distal biceps tendon injuries can be repaired in a single procedure. In contrast, complete chronic tears with severe tendon substance deficiency and retraction often require tendon graft augmentation. In cases with extensive partial tears of the distal biceps, a human dermal allograft may be used as an alternative to restore tendon thickness and biomechanical integrity. Hypothesis: Dermal graft augmentation will improve load to failure compared with nonaugmented repair in a tendon-deficient model. Study Design: Controlled laboratory study. Methods: Thirty-six matche

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Gersoff, Wayne, Chantelle Bozynski, Cristi Cook, Ferris Pfeiffer, Keiichi Kuroki, and James Cook. "Evaluation of a Novel Degradable Synthetic Biomaterial Patch for Augmentation of Tendon Healing in a Large Animal Model." Journal of Knee Surgery 32, no. 05 (2018): 434–40. http://dx.doi.org/10.1055/s-0038-1646930.

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AbstractTendon injury is common in sports. The standard of care (SOC) for tendon repair is surgical treatment. However, restored tendons often lack complete strength and functionality, and surgical repair is often unsuccessful. This controlled laboratory study investigates the healing of an Artelon patch (AP)-augmented tendon versus tendon repair alone in a preclinical canine patellar tendon defect model. Full-thickness proximal and distal flap defects were created in the patella tendons of eight purpose-bred research mongrel dogs. Dogs were randomly allocated into either the AP-augmented repa

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Mehl, Julian, Alexander Otto, Florian B. Imhoff, et al. "Dynamic Anterior Shoulder Stabilization With the Long Head of the Biceps Tendon: A Biomechanical Study." American Journal of Sports Medicine 47, no. 6 (2019): 1441–50. http://dx.doi.org/10.1177/0363546519833990.

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Background: The concept of dynamic anterior shoulder stabilization (DAS) combines a Bankart repair with the additional sling effect of the long head of the biceps (LHB) tendon to treat anterior glenohumeral instability. This surgical technique was created to close the gap between the indications for isolated Bankart repair and those requiring bone transfer techniques. Purpose: To biomechanically investigate the stabilizing effects of the DAS technique in comparison with the standard Bankart repair in different defect models. Study Design: Controlled laboratory study. Methods: Twenty-four fresh

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Mehl, J., F. Imhoff, E. Obopilwe, et al. "Dynamic anterior shoulder stabilization using the long head of the biceps tendon: a biomechanical study: DAS: a biomechanical study." Orthopaedic Journal of Sports Medicine 7, no. 5_suppl3 (2019): 2325967119S0020. http://dx.doi.org/10.1177/2325967119s00209.

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Objectives A new concept of dynamic anterior shoulder stabilization (DAS) combining Bankart repair with the additional sling effect of the long head of the biceps (LHB) tendon to treat anterior glenohumeral instability has recently been introduced. The purpose of this study was to biomechanically investigate the stabilizing effect of the DAS technique in comparison to standard Bankart repair in different defect models. Methods Twenty-four fresh frozen cadaver shoulders (average ± SD: age 60.1 ± 8.6 years) were mounted in a shoulder-testing system allowing 6 degrees of freedom. According to cro

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Strumpf, Dan, and Talila Volk. "Kakapo, a Novel Cytoskeletal-associated Protein Is Essential for the Restricted Localization of the Neuregulin-like Factor, Vein, at the Muscle–Tendon Junction Site." Journal of Cell Biology 143, no. 5 (1998): 1259–70. http://dx.doi.org/10.1083/jcb.143.5.1259.

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In the Drosophila embryo, the correct association of muscles with their specific tendon cells is achieved through reciprocal interactions between these two distinct cell types. Tendon cell differentiation is initiated by activation of the EGF-receptor signaling pathway within these cells by Vein, a neuregulin-like factor secreted by the approaching myotube. Here, we describe the cloning and the molecular and genetic analyses of kakapo, a Drosophila gene, expressed in the tendons, that is essential for muscle-dependent tendon cell differentiation. Kakapo is a large intracellular protein and con

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Kim, Duck Kyu, Jiyong Ahn, Seon Ae Kim, et al. "Improved Healing of Rabbit Patellar Tendon Defects After an Atelocollagen Injection." American Journal of Sports Medicine 49, no. 11 (2021): 2924–32. http://dx.doi.org/10.1177/03635465211030508.

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Background: Patellar tendinopathy is a common cause of limitations in daily life activities in young and/or active people. The patellar tendon consists of a complex of collagen fibers; therefore, collagen could be used as a scaffold in the treatment of patellar tendinopathy. Purpose: To evaluate the healing capacity of injected atelocollagen as a treatment scaffold for patellar tendon defect and, hence, its potential for the treatment of patellar tendinopathy. Study Design: Controlled laboratory study. Methods: After receiving a full-thickness patellar tendon defect, 24 New Zealand White rabbi

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Simon, Rajesh, Denis P. Jose, and Atmaram Gadgil,. "Composite Flexor Hallucis Longus and Free Gracillis Flap for Infected Achilles Tendon." Journal of Foot and Ankle Surgery (Asia Pacific) 4, no. 2 (2017): 100–102. http://dx.doi.org/10.5005/jp-journals-10040-1079.

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ABSTRACT Primary infection of tendo-achilles (TA) is quite uncommon. Here, we are presenting an interesting case of a 42-year-old farmer who developed TA infection following thorn prick injury (3-month-old injury). He presented to us with discharging sinus on posterior aspect of heel. On subsequent debridement, he had 17 cm tendon defect, which was treated with flexor hallucis longus (FHL) tendon and reinforced with free gracillis flap from opposite thigh. However, to the best of our knowledge, combined use of FHL and gracillis tendon has so far not reported. How to cite this article Simon R,

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BRANDSMA, J. W., and M. W. OTTENHOFF-DE JONGE. "Flexor Digitorum Superficialis Tendon Transfer for Intrinsic Replacement." Journal of Hand Surgery 17, no. 6 (1992): 625–28. http://dx.doi.org/10.1016/0266-7681(92)90187-7.

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This study is a review of 127 hands in 100 patients in whom one or two FDS tendons were used to correct claw-hand deformity and/or loss of opposition of the thumb. In lumbrical replacement the results were graded as excellent in 16 hands (21%) and good in 43 hands (57%). For opponensplasty the results were excellent in 26 hands (32%) and good in 42 hands (51%). Possible defects that can develop in the donor finger are: swan-neck deformity, flexion posture of the DIP joint, not as part of the swan-neck deformity, check-rein deformity or flexion contracture, and insufficient finger flexion. Of t

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Lee, Sang Yoon, Bomi Kwon, Kyoungbun Lee, Young Hoon Son, and Sun G. Chung. "Therapeutic Mechanisms of Human Adipose-Derived Mesenchymal Stem Cells in a Rat Tendon Injury Model." American Journal of Sports Medicine 45, no. 6 (2017): 1429–39. http://dx.doi.org/10.1177/0363546517689874.

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Background: Although survival of transplanted stem cells in vivo and differentiation of stem cells into tenocytes in vitro have been reported, there have been no in vivo studies demonstrating that mesenchymal stem cells (MSCs) could secrete their own proteins as differentiated tenogenic cells. Purpose/Hypothesis: Using a xenogeneic MSC transplantation model, we aimed to investigate whether MSCs could differentiate into the tenogenic lineage and secrete their own proteins. The hypothesis was that human MSCs would differentiate into the human tenogenic lineage and the cells would be able to secr

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Deng, Dan, Wenbo Wang, Bin Wang, et al. "Repair of Achilles tendon defect with autologous ASCs engineered tendon in a rabbit model." Biomaterials 35, no. 31 (2014): 8801–9. http://dx.doi.org/10.1016/j.biomaterials.2014.06.058.

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Mudgal, Chaitanya S., Tamara L. Martin, and Michael G. Wilson. "Reconstruction of Achilles Tendon Defect with a Free Quadriceps Bone-Tendon Graft without Anastamosis." Foot & Ankle International 21, no. 1 (2000): 10–13. http://dx.doi.org/10.1177/107110070002100102.

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Ji, Jong Hun, Weon Yoo Kim, Young Yul Kim, Yeon Soo Lee, and Jong Seoung Yoon. "Semitendinosus Tendon Augmentation for a Large Defect after Achilles Tendon Rupture: Two Case Reports." Foot & Ankle International 28, no. 10 (2007): 1100–1103. http://dx.doi.org/10.3113/fai.2007.1100.

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Yamazaki, Shuji, Tokifumi Majima, Keigo Yasui, Toyo Kikumoto, and Akio Minami. "Reconstruction of Chronic Anterior Tibial Tendon Defect Using Hamstring Tendon Graft: A Case Report." Foot & Ankle International 28, no. 11 (2007): 1190–93. http://dx.doi.org/10.3113/fai.2007.1190.

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Kocabey, Yavuz, John Nyland, Akbar Nawab, and David Caborn. "Reconstruction of Neglected Achilles’ Tendon Defect With Peroneus Brevis Tendon Allograft: A Case Report." Journal of Foot and Ankle Surgery 45, no. 1 (2006): 42–46. http://dx.doi.org/10.1053/j.jfas.2005.10.009.

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Hiramatsu, Kunihiko, Akira Tsujii, Norimasa Nakamura, and Tomoki Mitsuoka. "Ultrasonographic Evaluation of the Early Healing Process After Achilles Tendon Repair." Orthopaedic Journal of Sports Medicine 6, no. 8 (2018): 232596711878988. http://dx.doi.org/10.1177/2325967118789883.

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Background: Little is known about early healing of repaired Achilles tendons on imaging, particularly up to 6 months postoperatively, when patients generally return to participation in sports. Purpose: To examine changes in repaired Achilles tendon healing with ultrasonography for up to 12 months after surgery. Study Design: Case series; Level of evidence, 4. Methods: Ultrasonographic images of 26 ruptured Achilles tendons were analyzed at 1, 2, 3, 4, 6, and 12 months after primary repair. The cross-sectional areas (CSAs) and intratendinous morphology of the repaired tendons were evaluated usi

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Sammarco, G. James, and Charles V. DiRaimondo. "Chronic Peroneus Brevis Tendon Lesions." Foot & Ankle 9, no. 4 (1989): 163–70. http://dx.doi.org/10.1177/107110078900900403.

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Changes can occur in the peroneus brevis tendon following ankle injuries or sprains. A series of 14 tendon lesions is reported in the ankles of 13 patients. The duration of symptoms ranged from 8 months to 20 years. The predominant symptom in 12 ankles was lateral pain. In 11 ankles, lateral ankle instability was treated by a reconstruction with the split peroneus brevis graft, and in one ankle, by direct repair. The defects were found during harvest of the graft. One patient had previous fractures with bony impingement and one had a chronic tear of the tibialis posterior tendon with pes planu

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TROPET, Y., J. M. BRIENTINI, P. GARBUIO, P. E. RIDOUX, and P. VICHARD. "Reconstruction of a Complex Defect of the Dorsum of the Hand." Journal of Hand Surgery 20, no. 5 (1995): 591–95. http://dx.doi.org/10.1016/s0266-7681(05)80116-0.

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A 37-year-old right-handed male truck driver was admitted with a severe injury of the dorsum of his right hand following a traffic accident. He had a large combined defect involving skin, tendons and bone. A complex reconstruction was performed using a large iliac crest allograft, a tendon graft and a free serratus anterior flap in one stage, 8 hours after the injury. A skin graft was performed later. 2 years later the functional and aesthetic result are good.

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