Relevant bibliographies by topics / Sesamoids

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Academic literature on the topic 'Sesamoids'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Sesamoids"

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Groenewald, H. B., W. M. Wagner, and R. M. Kirberger. "A radiological study of the sesamoid bones and os meniscus of the cheetah (Acinonyxjubatus)." Veterinary and Comparative Orthopaedics and Traumatology 13, no. 04 (2000): 172–77. http://dx.doi.org/10.1055/s-0038-1632656.

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SummaryA radiological study of the sesamoids was undertaken in differing numbers of joints from 10 cheetahs. Each sesamoid was described and measured. Sesamoids were not found in the elbow and tarsal joints. A sesamoid was found in the abductor digiti 1 longus muscle as well as paired sesamoids were found at the interosseous muscle insertions palmarly of digits #1–5 and plantarly of digits #2–5. There were significant differences between abaxial and axial lengths of some of these sesamoids and the palmar sesamoids were significantly shorter than their plantar counterparts. In the stifle, a patella, a popliteal and two gastrocnemius sesamoids were present. The lateral gastrocnemius sesamoid was significantly longer than the medial one and had a peculiar bilobed appearance. An os meniscus was constantly present in the cranial aspect of the medial meniscus. The shape of the sesamoids and the presence of an os meniscus in the cheetah differed from those seen in the domestic dog and cat and were ascribed to differences in form and function.The radiological appearance of the sesamoids and os meniscus were described in adult cheetahs and compared to the domestic dog and cat. Possible anatomical and physiological factors influencing their appearance are postulated.
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Adibatti, Mallikarjun, Muthiah Pitchandi, and Bhuvaneswari V. "A radiological study of anatomical variants of hallux sesamoids." National Journal of Clinical Anatomy 7, no. 03 (July 2018): 128–33. http://dx.doi.org/10.1055/s-0040-1701726.

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Abstract Background and Aims: Hallux sesamoid bones forms an integral part of the first metatarsophalangeal joint for stability during weight bearing. Hallux sesamoids are paired bones located on the plantar aspect of the first metatarsal head within the flexor hallucis longus tendon. Hallucal sesamoids vary in shape and size; can be single, double, bipartite and multipartite. Traumatic insult to the hallux sesamoids can lead to fracture & dislocation, while majority of symptomatic hallux sesamoids can be treated non-surgically; certain specific injuries require a high index of suspicion, careful management, and surgical intervention. Hence present study was taken up to know the incidence, presence/absence, number and partition of hallux sesamoid to enlighten the surgeons and radiologists in early diagnosis and treatment of cases presenting with history of trauma, pain and fractures of foot. Methods: Retrospective radiographic study on the incidence, anatomical variants & distribution ofhallux sesamoids inlOOO radiographs ofthe foot. Result: Hallux Sesamoid bones were seen plantar to first metatarsal head in 994 radiographs [99.4%], while the absence ofHallucal sesamoids were noted in 6 radiographs [0.6%], Single Hallucal sesamoid were noted in 9 radiographs [0.9%], medial bipartition was noted in 20 radiographs [2%], lateral bipartition was noted in 15 radiographs [1.5%]. Conclusion: Knowledge regarding hallux sesamoids helps us in differentiating the various conditions arising out of fractures of foot bones with overlapping signs and symptoms, from actual involvement of sesamoid bone itself, which assists in the early diagnosis and management of foot pathologies.
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Ponssa, María Laura, and Virginia Abdala. "Sesamoids in Caudata and Gymnophiona (Lissamphibia): absences and evidence." PeerJ 8 (December 18, 2020): e10595. http://dx.doi.org/10.7717/peerj.10595.

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An integrative definition of sesamoid bones has been recently proposed, highlighting their relationship with tendons and ligaments, their genetic origin, the influence of epigenetic stimuli on their development, and their variable tissue composition. Sesamoid bones occur mainly associated with a large number of mobile joints in vertebrates, most commonly in the postcranium. Here, we present a survey of the distribution pattern of sesamoids in 256 taxa of Caudata and Gymnophiona and 24 taxa of temnospondyls and lepospondyls, based on dissections, high-resolution X-ray computed tomography from digital databases and literature data. These groups have a pivotal role in the interpretation of the evolution of sesamoids in Lissamphibia and tetrapods in general. Our main goals were: (1) to contribute to the knowledge of the comparative anatomy of sesamoids in Lissamphibia; (2) to assess the evolutionary history of selected sesamoids. We formally studied the evolution of the observed sesamoids by optimizing them in the most accepted phylogeny of the group. We identified only three bony or cartilaginous sesamoids in Caudata: the mandibular sesamoid, which is adjacent to the jaw articulation; one located on the mandibular symphysis; and one located in the posterior end of the maxilla. We did not observe any cartilaginous or osseous sesamoid in Gymnophiona. Mapping analyses of the sesamoid dataset of urodeles onto the phylogeny revealed that the very conspicuous sesamoid in the mandibular symphysis of Necturus beyeri and Amphiuma tridactylum is an independent acquisition of these taxa. On the contrary, the sesamoid located between the maxilla and the lower jaw is a new synapomorphy that supports the node of Hydromantes platycephalus and Karsenia coreana. The absence of a mandibular sesamoid is plesiomorphic to Caudata, whereas it is convergent in seven different families. The absence of postcranial sesamoids in salamanders might reveal a paedomorphic pattern that would be visible in their limb joints.
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Fontanarrosa, Gabriela, Jessica Fratani, and Miriam C. Vera. "Delimiting the boundaries of sesamoid identities under the network theory framework." PeerJ 8 (August 17, 2020): e9691. http://dx.doi.org/10.7717/peerj.9691.

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Sesamoid identity has long been the focus of debate, and how they are linked to other elements of the skeleton has often been considered relevant to their definition. A driving hypothesis of our work was that sesamoids’ nature relies deeply on their connections, and thus we propose an explicit network framework to investigate this subject in Leptodactylus latinasus (Anura: Leptodactylidae). Through the dissection of L. latinasus’ skeleton, we modeled its anatomical network where skeletal elements were considered nodes while joints, muscles, tendons, and aponeurosis were considered links. The skeletal elements were categorized into canonical skeletal pieces, embedded sesamoids, and glide sesamoids. We inquired about the general network characterization and we have explored further into sesamoid connectivity behavior. We found that the network is structured in a modular hierarchical organization, with five modules on the first level and two modules on the second one. The modules reflect a functional, rather than a topological proximity clustering of the skeleton. The 25 sesamoid pieces are members of four of the first-level modules. Node parameters (centrality indicators) showed that: (i) sesamoids are, in general terms, peripheral elements of the skeleton, loosely connected to the canonical bone structures; (ii) embedded sesamoids are not significantly distinguishable from canonical skeletal elements; and (iii) glide sesamoids exhibit the lowest centrality values and strongly differ from both canonical skeletal elements and embedded sesamoids. The loose connectivity pattern of sesamoids, especially glides, could be related to their evolvability, which in turn seems to be reflected in their morphological variation and facultative expression. Based on the connectivity differences among skeletal categories found in our study, an open question remains: can embedded and glide sesamoids be defined under the same criteria? This study presents a new approach to the study of sesamoid identity and to the knowledge of their morphological evolution.
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Kiter, Esat, Semih Akkaya, B. Alper Kiliç, and Fahir Demirkan. "Distribution of the Metatarsophalangeal Sesamoids in Turkish Subjects." Journal of the American Podiatric Medical Association 96, no. 5 (September 1, 2006): 437–41. http://dx.doi.org/10.7547/0960437.

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No statistically significant pattern of metatarsophalangeal sesamoid distribution has been reported in the literature in relation to genetic pool or group, unilaterality or bilaterality, or sesamoid division. A study was undertaken to evaluate the presence and distribution of the metatarsophalangeal sesamoid bones of the foot in Turkish subjects. A total of 602 foot radiographs from 371 patients without forefoot complaints other than those of the hallux were included in the study. Absence or hypoplasia of the first-ray sesamoids was seen on 0.7% of the radiographs, and second-, third-, fourth-, and fifth-ray sesamoids were present on 2.8%, 0.5%, 1.0%, and 15.1% of the radiographs, respectively. Fifth-ray sesamoids were more prevalent in men (odds ratio, 2.71; 95% confidence interval, 1.52–4.84). The frequency of a normal foot profile (two sesamoids in the first ray) was 83.2%. Divisions of the sesamoids were seen on 4.0% of the radiographs at the first ray and on 20.9% at the fifth ray. Distribution and division of sesamoids were predominantly bilateral (κ = 0.91, 0.91, and 0.95 for the first, second, and fifth digits, respectively; P < .001). (J Am Podiatr Med Assoc 96(5): 437–441, 2006)
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Sobel, Mark, Jun Hashimoto, Steven P. Arnoczky, and Walther H. O. Bohne. "The Microvasculature of the Sesamoid Complex: Its Clinical Significance." Foot & Ankle 13, no. 6 (July 1992): 359–63. http://dx.doi.org/10.1177/107110079201300613.

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The microvascular anatomy of the sesamoid complex was investigated in 15 cadaver specimens using histology and tissue clearing (Spalteholz) techniques. It was found that both sesamoids appeared equally well vascularized and the vascular supply to each sesamoid originated from two major sources (proximal and plantar) and one minor source (distal). Proximally, vessels originating from the first plantar metatarsal artery enter the sesamoid at its attachment to the flexor hallucis brevis. In addition, vessels enter the plantar surface of the sesamoid near the midline and arborize throughout the bone, anastamosing with the proximal vessels. The distal vascular supply to the sesamoids originates from its distal capsular attachment and appears to contribute minimally to the overall vascular scheme. The lateral attachments of the sesamoids to the plantar plate and joint capsule were relatively avascular. In two bipartite specimens examined, the major blood supply originated from the proximal and distal poles of the sesamoid. No vessels were observed entering the plantar surface of these specimens. The results of this study suggest that injury to the proximal or plantar aspects of the sesamoids could disrupt the vascular supply to these bones. These areas should, therefore, be avoided during the surgical approach to the sesamoids.
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Yildirim, Yakup, Cengiz C¸abukoglu, Bulent Erol, and Tanil Esemenli. "Effect of Metatarsophalangeal Joint Position on the Reliability of the Tangential Sesamoid View in Determining Sesamoid Position." Foot & Ankle International 26, no. 3 (March 2005): 247–50. http://dx.doi.org/10.1177/107110070502600311.

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Background: Lateral displacement of the sesamoids of the first toe relative to the metatarsal head is a common finding in hallux valgus deformity. Several methods have been described for quantifying the amount of subluxation from anteroposterior radiographs but a tangential sesamoid radiograph has been determined to be the best view to evaluate sesamoid displacement. Method: We evaluated the sesamoid position at different angles of the first metatarsophalangeal (MTP) joint to determine the effect of first MTP joint dorsiflexion on sesamoid position when tangential sesamoid view radiographs are made. Sesamoid positions of 22 feet with hallux valgus were graded from the short axis computed tomography (CT) images obtained with the MTP joint in 0, 35, and 70 degrees of dorsiflexion. Results: Approximation of the sesamoids to reduction was apparent as dorsiflexion of the first MTP joint increased. Conclusion: Different dorsiflexion degrees of the first MTP joint when tangential sesamoid radiographs are made modulate the position of the sesamoids and may lead to misclassification on grading.
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Kurashige, Toshinori, and Seiichi Suzuki. "Severe Hallux Valgus With Coalition of the Hallux Sesamoids Treated With Modified Lapidus Procedure: A Case Report." Foot & Ankle Specialist 10, no. 6 (April 6, 2017): 567–71. http://dx.doi.org/10.1177/1938640017703187.

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Coalition of the hallux sesamoids is an extremely rare condition. To our knowledge, only 1 case report has been published. We report a case of severe hallux valgus deformities with coalitions of the hallux sesamoids. The coalitions themselves were asymptomatic; however, this severe hallux valgus deformity needed to be surgically treated. The hallux sesamoids in both feet appeared to be fused and heart shaped on anteroposterior radiographs and dumbbell shaped on axial radiographs. It is known that postoperative incomplete reduction of the medial sesamoids can be a risk factor for the recurrence of hallux valgus. The computed tomography scan demonstrated a groove in the bottom of the center of the heart-shaped sesamoid. The flexor hallucis longus tendon was located in the groove. Therefore, a modified Lapidus procedure was performed considering the medial half of the heart-shaped sesamoid as the medial sesamoid. Although delayed union occurred, successful correction of the deformity was achieved. Levels of Evidence: Level IV
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Chamberland, Patricia D. C., Judith W. Smith, and Lamar L. Fleming. "The Blood Supply to the Great Toe Sesamoids." Foot & Ankle 14, no. 8 (October 1993): 435–42. http://dx.doi.org/10.1177/107110079301400802.

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The purpose of this study was to define the intraosseous and extraosseous blood supply of the hallucal sesamoids by studying a total of 10 fresh-frozen, below-knee specimens with no evidence of vascular disease. Most specimens were injected with high grade India ink, cleared using a standard Spalteholz technique, and processed to delineate the extraosseous and intraosseous blood supply to include soft tissue dissection and coronal sectioning. Two additional specimens were injected with blue Mercox acrylic solution to further define the extraosseous vasculature. The major extraosseous blood supply to the sesamoids is via the posterior tibial artery. This vessel then branches into the medial plantar artery which further divides upon entering the medial and lateral sesamoids in their proximal poles. Vessels in the peripheral soft tissues, although abundant, do not seem to penetrate the cortex of the sesamoids. The intraosseous blood supply to the sesamoids seems to be threefold. Mainly, sesamoid arteries enter the lateral and medial sesamoids from the proximal aspect via a single vessel. This proximal vessel proceeds distally with a network of branching. Plantar, nonarticular vessels enter the sesamoids, constituting a second source of vascularity. Finally, small vessels also enter the sesamoids through medial and lateral capsular attachments. Based on this study, a possible explanation for avascular necrosis and nonunion of sesamoids is proposed, and an optimal surgical approach is discussed. A medial operative approach avoiding the proximal pole of the sesamoids will preserve the main arterial source. The plantar surface of the sesamoids should also be avoided. Minimal dissection through the circumferential soft tissue vascular sleeve is recommended.
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Nicholson, A. D., J. O. Sanders, R. W. Liu, and D. R. Cooperman. "Binary and analogue markers of skeletal maturity: clinical utility of the thenar and plantar sesamoids." Journal of Children's Orthopaedics 12, no. 1 (February 2018): 76–83. http://dx.doi.org/10.1302/1863-2548.12.170192.

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Purpose We investigate the thenar and plantar sesamoids as markers of skeletal maturity, and grade appearance using two scales, a binary system (absent or present), and an analogue system that relies upon judging regular changes in morphological appearance. Methods We studied 94 healthy children (49 female and 45 male patients) between ages three and 18 years who had approximately 700 serially acquired sets of radiographs and physical examinations. The children had at least annual radiographs taken of the left hand and left foot. Velocity of growth was calculated and curves were fit to a cubic spline model to determine age of maximum height velocity, or peak height velocity (PHV). Appearance of the plantar and thenar sesamoids was recorded using a binary system classifying the sesamoids as absent or present and an analogue system classifying the sesamoid as absent, present as a small ossification centre or larger than a small ossification centre. Results The plantar sesamoids appear 1.67 years before PHV and reach mature size 1.02 years after PHV. The thenar sesamoids appear 0.32 years before PHV and reach mature size 2.25 years after PHV. The plantar sesamoids are present and thenar sesamoids are absent at a mean 1.5 years prior to PHV. No patients had the thenar sesamoids present while the plantar sesamoids were absent. Conclusion As binary markers, when the plantar and thenar sesamoids are considered together it is possible to localize maturity. As analogue markers, they offer more information. The sesamoids also allow clarification of the calcaneal and Sanders stages. Level of Evidence Not Applicable.
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Dissertations / Theses on the topic "Sesamoids"

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Regnault, Sophie. "Comparative mechanobiology and evolution of patellar sesamoids." Thesis, Royal Veterinary College (University of London), 2017. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.766318.

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Jones, Sara. "Vergleich von röntgenologischen Befunden im Rahmen des Röntgenleitfadens 2007 und computertomographischer Darstellung pathomorphologischer Veränderungen an Fesselbein, Gleichbeinen und Fesselgelenk des Pferdes." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-213824.

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Im Rahmen einer Kaufuntersuchung beim Pferd ist es von besonderem Interesse leistungsmindernde Faktoren aufzudecken. Dem Tierarzt stehen zu diesem Zwecke sowohl standardisierte Protokolle für die Durchführung der klinischen Untersuchung als auch der „Leitfaden für die röntgenologische Beurteilung bei der Kaufuntersuchung“ (Röntgenleitfaden 2007)zur Verfügung. Bezüglich der Anzahl der im Rahmen einer Kaufuntersuchung angefertigten Röntgenaufnahmen gibt es fortwährende Diskussionen. Besonders deutlich wird diese Problematik im internationalen Vergleich. Jedes Land, zum Teil auch die verschiedenen Zuchtverbände, verlangen unterschiedliche Standardaufnahmen. Ziel der Arbeit war die Überprüfung der Darstellbarkeit röntgenologischer Befunde im Bereich des Fesselgelenks, der Gleichbeine und des Fesselbeins, durch die im Röntgenleitfaden 2007 angegebene Standardaufnahme „Zehe 90°“ und die daraus resultierende Einteilung in Röntgenklassen. Es sollte geprüft werden wie sich die Einteilung der Röntgenklasse nach einer computertomographischen Darstellung und Befundung ändert. Von besonderem Interesse waren zusätzlich solche Befunde, die röntgenologisch nicht darstellbar waren, aber in der CT-Untersuchung gefunden werden konnten. Zur Untersuchung wurden 200 distale Gliedmaßen von 51 niedersächsischen Schlachtpferden röntgenologisch, computertomographisch und makroskopisch im Frisch- und Knochenpräparat herangezogen. Die Pferde wurden anhand der röntgenologischen Übersichtsaufnahme „Zehe 90°“ nach dem Schema des Röntgenleitfadens 2007 in Klassen eingeteilt. Anschließend erfolgte eine computertomographische Untersuchung. Ausgewertet wurden diese Bilder an einer Workstation, welche die Möglichkeit verschiedenster Rekonstruktionen bietet. Nachfolgend wurden die Pferde aufgrund der in der CT gefundenen Veränderungen in ihren Röntgenklassen korrigiert. Befunde, die nicht im Röntgenleitfaden aufgeführt sind, wurden gesondert betrachtet und im Rahmen einer Modellrechnung ausgewertet. Diese Modellrechnung betrachtet computertomographische Befunde, deren Detektion auch in einer röntgenologischen 0°Aufnahme der distalen Gliedmaße theoretisch zu erwarten gewesen wären. Diese Befunde wurden dann in die Klassifizierung der einzelnen Pferde einbezogen, um den Nutzen einer solchen zusätzlich zu der Standardaufnahme (Zehe 90°) angefertigten Röntgenaufnahme zu beurteilen. Im Anschluss wurden alle röntgenologischen und computertomographischen Befunde im Frisch bzw. Knochenpräparat aufgesucht und photographisch festgehalten. Fokus aller Untersuchungen war stets die Fesselgelenkregion sowie das distale Fesselbein. Die Einteilung der Pferde in eine bestimmte Röntgenklasse anhand ihrer Befunde im Fesselgelenkbereich änderte sich bei 84,31 % (n=51) der Pferde nicht, oder nur bis zu einer halben Röntgenklasse. Die meisten Pferde (43,14 %, n=51) der untersuchten Population ließen sich aufgrund ihrer Befunde im Fesselgelenk in Anlehnung an den Röntgenleitfaden 2007 in die Zwischenklasse II-III einordnen. Auch im Bereich der gesamten distalen Gliedmaße war es möglich 82,36 % (n=51), der Pferde röntgenologisch in eine Röntgenklasse einzuteilen, so dass sich auch nach der computertomographischen Untersuchung keine Veränderung, oder nur eine Änderung um eine halbe Klasse ergaben. Die als Goldstandard verwendete Computertomographie, erlaubte in dieser Arbeit die Annahme einer hypothetisch angefertigten 0° Aufnahme der Fesselgelenkregion. Diese Aufnahme ermöglicht vor allem die Detektion zystoider Defekte im Bereich der distalen Gliedmaße und führt zu einer Erhöhung der Anzahl der Pferde, die sich nicht in ihrer Röntgenklasse verändern, von 66,70 % auf 78,43 %.
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Doherty, Alison R. H. "Murine Metapodophalangeal Sesamoid Bone Mineralization: A Light and Electron Microscopy Study." [Kent, Ohio] : Kent State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1195240527.

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Hirschberg, Jens. "Simulations of mechanical adaptation and their relationship to stress bearing in skeletal tissue." University of Western Australia. School of Anatomy and Human Biology, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0095.

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[Truncated abstract] In this work a computer simulation program, similar to a finite element program, is used to study the relationship between skeletal tissue structure and function. Though other factors affect the shape of bone (e.g., genetics, hormones, blood supply), the skeleton adapts its shape mainly in response to the mechanical environment to which it is exposed throughout life. The specific relationship between the mechanical environment and the mechanical adaptation response of the skeleton is reviewed. Theories of mechanical adaptation are applied to the sites of tendon attachment to bone (entheses), the adaptation of generalised trabecular bone (i.e., Wolff’s Law of trabecular architecture), sesamoid bones that are often found where a tendon wraps around a bony pulley, and the internal trabecular structure of a whole bony sesamoid such as the patella. The relative importance of compression rather than tension in bone adaptation theories is still not fully understood. Some mechanical adaptation theories suggest that an overwhelming tensile stress at a skeletal location does not stimulate bone deposition, but would instead lead to bone resorption. The skeletal locations studied in this work were chosen because they have been proposed to be in tension. Computer simulations involving models are an ideal method to analyse the mechanical environment of a skeletal location. They are able to determine the mechanical stresses at, and the stress patterns around, complex biological situations. This study uses a two dimensional computer simulation program, Fast Lagrangian Analysis of Continua (Flac), to analyse the stress at the skeletal locations, and to test theories of mechanical adaptation over time by simulating physiological adaptation. The initial purpose of this study is to examine the stress in the skeletal tissue in generalised trabeculae, anatomical sites where a tendon wraps around a bony pulley, in the trabecular networks that fill the patella, and at tendon attachments. A secondary purpose, that follows directly from the first, is to relate the results of these initial stress analyses to existing and hypothetical skeletal tissue remodelling theories, to suggest how the complex skeletal structures might be generated solely in response to their mechanical environment. The term “remodelling” is used throughout this work to refer to mechanical adaptation of bone, usually at a surface of bone, rather than the internal regeneration of osteons (Haversion systems)
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Romero, La Fuente Janet Elizabeth [UNESP]. "Efetividade da radiografia digital direta na técnica simplificada - análise da maturação óssea." Universidade Estadual Paulista (UNESP), 2002. http://hdl.handle.net/11449/95520.

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Made available in DSpace on 2014-06-11T19:27:48Z (GMT). No. of bitstreams: 0 Previous issue date: 2002-02-27Bitstream added on 2014-06-13T18:31:53Z : No. of bitstreams: 1 romerolafuente_je_me_arafo.pdf: 647496 bytes, checksum: a962eecc305aefe482abd482be57f8c5 (MD5)
Neste trabalho propusemo-nos a avaliar a efetividade da radiografia digital direta, quando empregada na técnica simplificada de análise de maturação óssea. Foram selecionadas 30 crianças de ambos os sexos, com faixa etária entre 9 e 14 anos para o sexo feminino e, entre 11 e 16 anos para o sexo masculino. De cada criança foram obtidas duas radiografias, uma pela técnica convencional e outra digital direta para a posterior análise comparativa das imagens. O filme e o sensor foram posicionados e centralizados na região da articulação metacarpofalangeana do polegar esquerdo, de forma que o centro do sensor ou filme coincidisse com a posição da articulação metacarpofalangeana. As radiografias convencionais e digitais diretas foram analisadas por uma Odontopediatra, procurando identificar no osso sesamóide: ausência (A), calcificação inicial (CI) e calcificação presente (CP). Na falange proximal do polegar esquerdo, foram identificados os estágios de capeamento epifisário a= epífise menor que a largura da diáfise, b= epífise igual à largura da diáfise, c= estágio de capeamento, d= fusão da epífise com a diáfise. As observações foram submetidas a análise estatística chegando-se as seguintes conclusões: 1 - A ossificação do osso sesamóide mostrou a melhor correlação entre os dois tipos de radiografias analisadas 2 - O observador apresentou melhor índice de coincidência nos fatores analisados na radiografia digital, sendo sua maior dificuldade o reconhecimento do estágio do início da calcificação do osso sesamóide na radiografia convencional.
The aim of this study was to evaluate the analysis of bone maturation in the simplified radiographic technique thirty children, age from 9 to 14 years old for female and from 11 to 16 for male took part of this study. From each child were obtained two radiographies, using conventional and digital techniques. The film and the sensor were positioned centralized in the area of the metacarpophalangeal joint of the left Thumb. The images were analyzed by a Pediatric Dentist. Calibrated to identify in the sesamoid bone: absence (A), initial calcification (CI) and present calcification (CP). In the proximal phalange of the left thumb were identified the epiphyseal changes: a - Ephiphysis equal in width to diaphysis, b= Appearance of sesamoid of the thumb, c= Capping of epiphysis, d= Fusion of epiphysis. The results shouled that the sesamoid bone avaliation had the best correlation in both radiographies : Conventional and Digital. The observer was more reliable when analysed digital X rays.
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Romero, La Fuente Janet Elizabeth. ""Efetividade da radiografia digital direta na técnica simplificada - análise da maturação óssea /." Araraquara : [s.n.], 2002. http://hdl.handle.net/11449/95520.

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Orientador: Lourdes Aparecida Martins dos Santos Pinto.
Banca: Rita de Cássia Loiola Cordeiro
Banca: Maria Cristina Borsatto
Resumo: Neste trabalho propusemo-nos a avaliar a efetividade da radiografia digital direta, quando empregada na técnica simplificada de análise de maturação óssea. Foram selecionadas 30 crianças de ambos os sexos, com faixa etária entre 9 e 14 anos para o sexo feminino e, entre 11 e 16 anos para o sexo masculino. De cada criança foram obtidas duas radiografias, uma pela técnica convencional e outra digital direta para a posterior análise comparativa das imagens. O filme e o sensor foram posicionados e centralizados na região da articulação metacarpofalangeana do polegar esquerdo, de forma que o centro do sensor ou filme coincidisse com a posição da articulação metacarpofalangeana. As radiografias convencionais e digitais diretas foram analisadas por uma Odontopediatra, procurando identificar no osso sesamóide: ausência (A), calcificação inicial (CI) e calcificação presente (CP). Na falange proximal do polegar esquerdo, foram identificados os estágios de capeamento epifisário a= epífise menor que a largura da diáfise, b= epífise igual à largura da diáfise, c= estágio de capeamento, d= fusão da epífise com a diáfise. As observações foram submetidas a análise estatística chegando-se as seguintes conclusões: 1 - A ossificação do osso sesamóide mostrou a melhor correlação entre os dois tipos de radiografias analisadas 2 - O observador apresentou melhor índice de coincidência nos fatores analisados na radiografia digital, sendo sua maior dificuldade o reconhecimento do estágio do início da calcificação do osso sesamóide na radiografia convencional.
Abstract: The aim of this study was to evaluate the analysis of bone maturation in the simplified radiographic technique thirty children, age from 9 to 14 years old for female and from 11 to 16 for male took part of this study. From each child were obtained two radiographies, using conventional and digital techniques. The film and the sensor were positioned centralized in the area of the metacarpophalangeal joint of the left Thumb. The images were analyzed by a Pediatric Dentist. Calibrated to identify in the sesamoid bone: absence (A), initial calcification (CI) and present calcification (CP). In the proximal phalange of the left thumb were identified the epiphyseal changes: a - Ephiphysis equal in width to diaphysis, b= Appearance of sesamoid of the thumb, c= Capping of epiphysis, d= Fusion of epiphysis. The results shouled that the sesamoid bone avaliation had the best correlation in both radiographies : Conventional and Digital. The observer was more reliable when analysed digital X rays.
Mestre
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McGuigan, Miranda Polly. "The scope for adjustment of distal limb mechanics of the horse (Equus callabus)." Thesis, Royal Veterinary College (University of London), 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369231.

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Carinhena, Glauber Fabre. "ESTUDO RADIOGRÁFICO COMPARATIVO ENTRE OS MÉTODOS DE AVALIAÇÃO DA MATURAÇÃO ÓSSEA DAS VÉRTEBRAS CERVICAIS E MÃO E PUNHO EM INDIVÍDUOS COM SÍNDROME DE DOWN." Universidade Metodista de São Paulo, 2006. http://tede.metodista.br/jspui/handle/tede/1219.

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Made available in DSpace on 2016-08-03T16:31:04Z (GMT). No. of bitstreams: 1 Glauber Fabre Carinhena1.pdf: 160083 bytes, checksum: 9ff28bf9a976e1529fd0641542f508ea (MD5) Previous issue date: 2006-03-23
Este estudo foi realizado com o propósito de testar a reprodutibilidade, a confiabilidade e a concordância existente entre os métodos de Martins e Sakima (1977) para a radiografia de mão e punho, e Hassel e Farman (1995) e Baccetti et al. (2002) para as vértebras cervicais, quando comparados 2 a 2, e entre todos, conjuntamente. A amostra constou de 72 radiografias, sendo 36 telerradiografias em norma lateral da cabeça e 36 radiografias de mão e punho do lado esquerdo, de 36 indivíduos com Síndrome de Down (SD), sendo 13 do sexo feminino e 23 do masculino na faixa etária entre oito anos e seis meses até 18 anos e sete meses, com média de 13 anos e dez meses. De acordo com os resultados obtidos concluímos que, os índices de maturação avaliados por meio das vértebras cervicais e os centros de ossificação observados nas radiografias de mão e punho foram estatisticamente significativos, obtendo um excelente grau de concordância entre eles, considerados reprodutíveis e confiáveis. Quando comparados onjuntamente, todos os métodos se mostraram estatisticamente significantes com grau de concordância de razoável a boa, sendo considerados confiáveis na aplicação clínica.
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Alrtib, Abdulrhman Mohamed. "Morphometrical study of bony elements of the forelimb fetlock joints in some equine breeds." 2009. http://repository.unimelb.edu.au/10187/5257.

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Many pathologic lesions and several types of fractures in the equine forelimbs involved the bony elements of the metacarpophalangeal joints (fetlock joints) especially the third metacarpal bones and the proximal sesamoid bones. Although the bones of the fetlock joint have been described in a general manner, the variations between equine breeds are still insufficient and differences within the breeds are not completely covered. Therefore, the aim of the current study was to identify the morphometrical variations of these bones between and within some different equine breeds.
Right and left metacarpal, proximal phalangeal and proximal sesamoid bones were collected from 23 horses (10 Thoroughbreds, 5 Standardbreds and 8 Ponies) euthanized for non-orthopaedic reasons. The bones were boiled between 95°C and 99°C for 30 hours, then cleaned and left for 24 hours at room temperature for air drying. Finally, the bones were dried in the drying cabinet at 49.5°C for 8 hours. A number of dimensional parameters were measured using a custom-built apparatus, calliper and plastic tape. These measurements included proximodistal height, lateromedial width, and dorsopalmar depth. All the statistical data were analysed using the ANOVA test and SPSS statistic software except the repeatability data which were analysed by calculating the repeatability coefficient.
This study showed that there were significant variations between the medial and lateral sides of all bones in all breeds. The length to the lateral condyle of Mc3 was greater than the length to the medial condyle of Mc3 in all breeds. The width and depth of the medial condyle was greater than the lateral condyle in all breeds. The lengths of the lateral sides of the P1 bones were greater than the lengths of the medial sides in the right forelimbs of Thoroughbreds and Standardbreds. The width of the medial articular cavity of P1 was greater than the width of the lateral articular cavity except in the left limb of Ponies. The depth of the medial articular cavity of P1 was greater than the depth of the lateral articular cavity except in the left limb of Standardbreds. The lateral sesamoid bones in both limbs of Thoroughbreds and Ponies were significantly longer or tended to be longer than the medial sesamoid bones. The lateral sesamoid bones were wider than the medial sesamoid bones in both limbs of Ponies. The depths of the lateral sesamoid bones were the significantly greater or tended to be greater than those of the medial sesamoid bones in both limbs of Thoroughbreds and Standardbreds.
There were many morphometrical variations in the bony elements of the equine fetlock joints of Thoroughbreds, Standardbreds and Ponies. Further studies are needed to identify the reasons and mechanical effects of these differences.
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Books on the topic "Sesamoids"

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Robinson, Andrew H. N., and Maneesh Bhatia. Disorders of the forefoot. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199550647.003.009002.

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♦ The aim of modern forefoot surgery is to refunction the first ray, and balance the lesser rays around it♦ The indications for surgery in hallux valgus are of pain over the bunion, or of pain with subluxation or dislocation of the lesser rays as a result of first ray insufficiency♦ Hallux valgus surgery aims to reposition the metatarsal head over the sesamoids whilst maintaining length. The osteotomy should be stable to allow early mobilization♦ The mainstays of the surgical treatment of hallux rigidus are dorsal cheilectomy and fusion of the first MTPJ♦ 96% excellent and good results in reconstruction of the rheumatoid forefoot have been reported with fusion of the first MTPJ and resection of the lesser metatarsal heads.
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Book chapters on the topic "Sesamoids"

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Regnauld, Bernard. "Disorders of the Sesamoids." In The Foot, 102–7. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-61605-1_13.

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Heckman, James D., Marcus P. Coe, and Jason T. Laurita. "Stress Fractures of the Calcaneus, Sesamoids, and Metatarsals." In Stress Fractures in Athletes, 171–91. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09238-6_13.

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Morrison, W. B., H. P. Ledermann, and M. E. Schweitzer. "Sesamoid Pathology." In Imaging of the Foot & Ankle, 313–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-59363-5_19.

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Carmont, Michael R. "Sesamoid Stress Fractures." In Sports Injuries, 1–8. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36801-1_164-1.

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Carmont, Michael R. "Sesamoid Stress Fractures." In Sports Injuries, 2035–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-36569-0_164.

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Mann, Gideon, Iftach Hetsroni, Naama Constantini, Eran Dolev, Shay Shabat, Alex Finsterbush, Vidal Barchilon, Omer Mei-Dan, and Meir Nyska. "Sesamoid Stress Fractures." In Sports Injuries, 829–32. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15630-4_105.

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Bährle-Rapp, Marina. "Ossa sesamoidea." In Springer Lexikon Kosmetik und Körperpflege, 393. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_7276.

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Gaillard, F. "Disorders of the sesamoid bones." In Bone and Joint Disorders of the Foot and Ankle, 203–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-06132-9_19.

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Buchanan, Matthew M. "Turf Toe and Sesamoid Injuries." In Essential Foot and Ankle Surgical Techniques, 109–19. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-14778-5_11.

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Pagenstert, Geert I., Victor Valderrabano, and Beat Hintermann. "Percutaneous Screw Fixation of Hallux Sesamoid Fractures." In Minimally Invasive Surgery in Orthopedics, 501–4. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-76608-9_60.

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Conference papers on the topic "Sesamoids"

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Lu, Chang-Sheng, Zhi-Guan Huang, Yu-he Li, Bo Zhang, and Xi Yang. "An investigation on the sesamoids and supernumerary bones of wrestlers by CT and 3D-reconstruction." In 2016 9th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics (CISP-BMEI). IEEE, 2016. http://dx.doi.org/10.1109/cisp-bmei.2016.7852996.

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Catal, Hatice. "THREE-DIMENSIONAL�MODELING�OF�THE�SESAMOID�BONES." In SGEM2012 12th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2012. http://dx.doi.org/10.5593/sgem2012/s10.v3039.

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Shaffer, S. K., D. P. Fyhrie, and S. M. Stover. "Evidence of Subchondral Lesions Preceding Proximal Sesamoid Bone Fracture in Thoroughbred Racehorses." In Abstracts of the 46th Annual Conference of the Veterinary Orthopedic Society. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1692238.

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SK, Shaffer, N. Sachs, Garcia TC, and Stover SM. "In Vitro Motion of the Proximal Sesamoid Bones under Physiological Midstance Loads." In Abstracts of the 47th Annual Conference of the Veterinary Orthopedic Society. Georg Thieme Verlag KG, 2020. http://dx.doi.org/10.1055/s-0040-1712894.

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Kwon, HH, BS Koo, Y. Song, Y.-K. Sung, S. Lee, and J.-B. Jun. "AB1028 Prevalence and distribution of sesamoid bones in the hand determined using digital tomosynthesis." In Annual European Congress of Rheumatology, 14–17 June, 2017. BMJ Publishing Group Ltd and European League Against Rheumatism, 2017. http://dx.doi.org/10.1136/annrheumdis-2017-eular.4553.

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