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Sesamoiditis

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https://www.readbyqxmd.com/read/29121048/anatomical-variations-of-the-deep-head-of-cruveilhier-of-the-flexor-pollicis-brevis-and-its-significance-for-the-evolution-of-the-precision-grip
#1
Samuel S Dunlap, M Ashraf Aziz, Janine M Ziermann
Cruveilhier described in 1834 the human flexor pollicis brevis (FPB), a muscle of the thenar compartment, as having a superficial and a deep head, respectively, inserted onto the radial and ulnar sesamoids of the thumb. Since then, Cruveilhier's deep head has been controversially discussed. Often this deep head is confused with Henle's "interosseous palmaris volaris" or said to be a slip of the oblique adductor pollicis. In the 1960s, Day and Napier described anatomical variations of the insertions of Cruveilhier's deep head, including its absence, and hypothesized, that the shift of the deep head's insertion from ulnar to radial facilitated "true opposability" in anthropoids...
2017: PloS One
https://www.readbyqxmd.com/read/29031324/thoroughbred-fatality-and-associated-jockey-falls-and-injuries-in-races-in-new-south-wales-and-the-australian-capital-territory-australia-2009-2014
#2
C E Wylie, P McManus, C McDonald, S Jorgensen, P McGreevy
Monitoring racehorse fatality and associated jockey falls provides benchmarks for intervention strategies. The aims of this study were to describe the incidence of and reasons for fatalities in Thoroughbred horses during flat races in the Australian Capital Territory and New South Wales (NSW), Australia, and to describe reported jockey falls and injuries associated with racehorse fatalities. A cohort study identified all racehorse fatalities reported through Racing NSW for the 2009-2010 to 2013-2014 racing seasons...
September 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29024479/partite-hallux-sesamoid-bones-relationship-with-sesamoid-bones-at-other-metatarsophalangeal-joints
#3
Tao Sun, Haitao Zhao, Lingxiang Wang, Wenjuan Wu
Introduction - Partite hallux sesamoids are clinically meaningful but their association with other sesamoids is not clear. The objective was to relate the prevalence of the partite hallux sesamoid bones to sesamoid bones at other metatarsophalangeal (MTP) joints. Methods - We conducted a retrospective review of plain radiographs of 7946 adult feet between November 2005 and September 2012 in order to identify partite hallux sesamoids and sesamoids at other MTP joints. Coexistence patterns of the partition and extra sesamoids were studied...
October 10, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28993565/a-retrospective-study-of-radiographic-abnormalities-in-the-repositories-for-thoroughbreds-at-yearling-sales-in-japan
#4
Daisuke Miyakoshi, Hiroyuki Senba, Mitsumori Shikichi, Masaya Maeda, Ryo Shibata, Kazuhiro Misumi
This study aimed to evaluate whether radiographic abnormalities at yearling sales were associated with the failure to start racing at 2-3 years of age. Radiographic abnormalities in the carpal (n=852), tarsal (n=976), metacarpophalangeal (n=1,055), and metatarsophalangeal joints (n=1,031) from 1,082 horses, recorded at yearling sale, were reviewed. Eighty-two horses (7.6%) failed to start racing. Radiographic abnormalities such as wedged or collapsed tarsal bones, irregular lucency of a sagittal ridge at the distal aspect of the distal third metatarsal bone, and proximal dorsal fragmentation of the first phalanx in metatarsophalangeal joints were associated with failure to start racing in these horses...
October 6, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28992242/the-origin-and-evolutionary-consequences-of-skeletal-traits-shaped-by-embryonic-muscular-activity-from-basal-theropods-to-modern-birds
#5
Alexander O Vargas, Macarena Ruiz-Flores, Sergio Soto-Acun A, Nadia Haidr, Carolina Acosta-Hospitaleche, Luis Ossa-Fuentes, Vicente Muñoz-Walther
Embryonic muscular activity (EMA) is involved in the development of several distinctive traits of birds. Modern avian diversity and the fossil record of the dinosaur-bird transition allow special insight into their evolution. Traits shaped by EMA result from mechanical forces acting at post-morphogenetic stages, such that genes often play a very indirect role. Their origin seldom suggests direct selection for the trait, but a side-effect of other changes such as musculo-skeletal rearrangements, heterochrony in skeletal maturation, or increased incubation temperature (which increases EMA)...
August 24, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28988738/tripartite-fracture-of-the-ulnar-sesamoid-bone-of-the-thumb
#6
Dunya N Alfaraj, Gary M Vilke
No abstract text is available yet for this article.
November 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28975655/absence-of-bony-patella-in-the-white-eared-opossum-didelphis-albiventris-morphology-and-diagnostic-imaging
#7
L R Inamassu, M J Mamprim, C R Dadalto, F C Cavaletti, M C Mello, B C Schimming
Patella, the kneecap, is the best known and largest of the sesamoid bones and is present in the quadriceps femoris tendon. Typical patella appears in all extant mammals, with the exception of some marsupials and bats. No description about the white-eared opossum stifle was found in the available literature up to now. Thus, the knee joints of 16 Didelphis albiventris were examined by gross anatomy, histology, radiography and computed tomography images to determine the presence or absence of ossified patella in this animal...
October 4, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28955165/histopathological-findings-of-apical-fracture-of-the-proximal-sesamoid-bones-in-young-thoroughbred-foals
#8
Fumio Sato, Yoshiro Endo, Noriyuki Horiuchi, Masataka Tominari, Harutaka Murase, Mutsuki Ishimaru, Kenji Korosue
Although radiographic findings at the apical portion of the proximal sesamoid bone (PSB) are often observed in young Thoroughbred foals, conflicting findings, either fractures or apparent secondary ossifications centers, have been reported. Three cases (aged 2, 5, and 7 weeks) were identified in 30 necropsied foals (0-31 weeks old). Histopathologically, the subchondral trabecular woven bone was fractured and exhibited focal necrosis of woven bone, fibrin exudate, and/or fibrosis within the foci. In the 7-week-old case, proliferations of chondrocytes were also observed...
2017: Journal of Equine Science
https://www.readbyqxmd.com/read/28894339/giant-cyamella-a-rare-sesamoid-bone
#9
Márcio Luís Duarte, André de Queiroz Pereira Silva, Simone Botelho Alvarenga, José Luiz Masson de Almeida Prado, Luiz Carlos Donoso Scoppetta
No abstract text is available yet for this article.
July 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28872525/thumb-ossification-composite-index-toci-for-predicting-peripubertal-skeletal-maturity-and-peak-height-velocity-in-idiopathic-scoliosis-a-validation-study-of-premenarchal-girls-with-adolescent-idiopathic-scoliosis-followed-longitudinally-until-skeletal-maturity
#10
Alec L H Hung, W W Chau, B Shi, Simon K Chow, Fiona Y P Yu, T P Lam, Bobby K W Ng, Y Qiu, Jack C Y Cheng
BACKGROUND: Accurate skeletal maturity assessment is important to guide clinical evaluation of idiopathic scoliosis, but commonly used methods are inadequate or too complex for rapid clinical use. The objective of the study was to propose a new simplified staging method, called the thumb ossification composite index (TOCI), based on the ossification pattern of the 2 thumb epiphyses and the adductor sesamoid bone; to determine its accuracy in predicting skeletal maturation when compared with the Sanders simplified skeletal maturity system (SSMS); and to validate its interrater and intrarater reliability...
September 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28865581/the-rotoglide%C3%A2-total-replacement-of-the-first-metatarso-phalangeal-joint-a-prospective-series-with-7-15-years-clinico-radiological-follow-up-with-survival-analysis
#11
Hakon Kofoed, Lasse Danborg, Jacob Grindsted, Søren Merser
BACKGROUND: The Rotoglide total replacement of the MTP-1 joint. 15 years survival analysis. The purpose of this prospective study was to evaluate the long-term performance clinico-radiographically of an uncemented three-component total replacement for the first metatarso-phalangeal joint (MTP-1) used for hallux rigidus (primary osteoarthritis grades 3 and 4). The follow-up was median 11.5 years (7-15). METHODS: The AOFAS forefoot score was used preoperatively and at follow-up...
September 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28842090/comparison-of-tibial-sesamoid-position-on-anteroposterior-and-axial-radiographs-before-and-after-triplane-tarsal-metatarsal-joint-arthrodesis
#12
Paul Dayton, Mindi Feilmeier
We reviewed the radiographic results of a group of patients who had undergone triplane correctional tarsometatarsal arthrodesis for symptomatic hallux abducto valgus with metatarsus primus abducto valgus. Of the 21 feet included in the present review, 17 (81%) displayed radiographic findings of metatarsal pronation preoperatively based on axial sesamoid views and positive lateral round sign on anteroposterior radiographs. At a mean follow-up period of 5.2 ± 1.6 months, a significant improvement in the tibial sesamoid position (TSP) on both anteroposterior (AP) and axial radiographs was measured...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28819597/case-report-oblique-fracture-of-the-ulnar-sesamoid-bone-of-the-metacarpophalangeal-joint-a-rare-pathology
#13
Dauwe Jan, Van der Cruyssen Fréderic, De Smet Luc
INTRODUCTION: Fractures of the sesamoid bones of the metacarpophalangeal joint (MCPJ) are a rare pathology in hand trauma. Only a few case reports and case series were found in literature. The diagnosis of an ulnar sesamoid bone fracture of the MCPJ is difficult and can pose a differential diagnostic problem with Stener lesions or ulnar collateral ligament (UCL) instability. This pathology is frequently missed with subsequent poor functional outcomes. Correct and early diagnosis is important as this will allow for correct treatment with full recovery of function without sequelae...
March 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28805956/morphology-and-postnatal-development-of-lower-hindlimbs-in-desmodus-rotundus-chiroptera-phyllostomidae-a-comparative-study
#14
Nicolás Reyes-Amaya, Adriana Jerez, David Flores
The hindlimbs in bats are functionally adapted to serve as a hook to attach to the mother from birth, and to roost during independent life. Although bats exhibit different terrestrial locomotion capabilities involving hindlimbs, hindlimb morphology and postnatal development have been poorly studied. We describe in detail the postnatal development and bone morphology of hindlimbs of the nimble walker vampire bat, Desmodus rotundus, and compare adult characters with the insectivorous Molossus molossus (erratic walker) and the frugivorous Artibeus lituratus (non-walker)...
August 14, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28800707/radiographic-results-and-return-to-activity-after-sesamoidectomy-for-fracture
#15
Justin M Kane, James W Brodsky, Yahya Daoud
BACKGROUND: Limited data are available comparing the results of lateral sesamoidectomy and medial sesamoidectomy for the treatment of fractures recalcitrant to nonoperative treatment interventions. The hypothesis of this study was that sesamoidectomy for either lateral or medial sesamoid fractures would not change radiographic alignment of the first ray given the use of identical reconstruction of the plantar plate, intersesamoid ligament, and plantar ligament complex at the time of surgery...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28741326/-dislocation-of-the-proximal-hallux-interphalangeal-joint-with-interposition-of-a-sesamoid-bone-a-blibliographic-review
#16
C Arvinius, J Valle, A Urda, C León, R F Marco
The irreducible dislocation of the hallux interphalangeal joint is an infrequent condition and only a few cases have been described. It presents as dorsal dislocation with interposition of the sesamoid bone, which has the possibility of being radiologically undetectable. We present the case of a 29 year-old patient who, after a sports trauma sustained a hallux interphalangeal dislocation that went unnoticed for eight days. Since, closed reduction was not possible, as occurred in several cases reported in the literature, open reduction was performed through a dorsal incision...
January 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28719558/recurrence-of-hallux-valgus-can-be-predicted-from-immediate-postoperative-non-weight-bearing-radiographs
#17
Chul Hyun Park, Woo-Chun Lee
BACKGROUND: The aims of this study were to identify risk factors for the recurrence of hallux valgus deformity and to clarify whether recurrence after surgery to treat hallux valgus can be predicted using radiographic parameters assessed on immediate postoperative non-weight-bearing radiographs. METHODS: A proximal chevron osteotomy combined with a distal soft-tissue procedure was performed by a single surgeon to treat moderate to severe hallux valgus deformity in 93 patients (117 feet)...
July 19, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28714106/prevalence-and-distribution-of-sesamoid-bones-and-accessory-ossicles-of-the-foot-as-determined-by-digital-tomosynthesis
#18
Bon San Koo, Yoonah Song, Seunghun Lee, Yoon-Kyoung Sung, Il-Hoon Sung, Jae-Bum Jun
We previously reported that digital tomosynthesis (DTS) is a reliable tool for evaluating bony structures of the hand. The current study aimed to identify the prevalence and distribution of sesamoid bones and accessory ossicles of the foot using DTS and to compare the results to those of conventional radiography (CR). Foot images (DTS, 213; CR, 44) of 213 patients taken at a tertiary hospital were retrospectively reviewed. Sesamoid bones were identified in the metatarsaophalangeal (MTP), distal interphalangeal (DIP) and interphalangeal (IP) joints of the great (I), second (II), third (III), fourth (IV), and fifth (V) toes...
July 16, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28687097/foal-fractures-osteochondral-fragmentation-proximal-sesamoid-bone-fractures-sesamoiditis-and-distal-phalanx-fractures
#19
REVIEW
Heidi L Reesink
Foals are susceptible to many of the same types of fractures as adult horses, often secondary to external sources of trauma. In addition, some types of fractures are specific to foals and occur routinely in horses under 1 year of age. These foal-specific fractures may be due to the unique musculoskeletal properties of the developing animal and may present with distinct clinical signs. Treatment plans and prognoses are tailored specifically to young animals. Common fractures not affecting the long bones in foals are discussed in this article, including osteochondral fragmentation, proximal sesamoid bone fractures/sesamoiditis, and distal phalanx fractures...
August 2017: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/28680670/finite-element-modelling-of-mechanobiological-factors-influencing-sesamoid-tissue-morphology-in-the-patellar-tendon-of-an-ostrich
#20
Kyle P Chadwick, Sandra J Shefelbine, Andrew A Pitsillides, John R Hutchinson
The appearance and shape of sesamoid bones within a tendon or ligament wrapping around a joint are understood to be influenced by both genetic and epigenetic factors. Ostriches (Struthio camelus) possess two sesamoid patellae (kneecaps), one of which (the distal patella) is unique to their lineage, making them a good model for investigating sesamoid tissue development and evolution. Here we used finite-element modelling to test the hypothesis that specific mechanical cues in the ostrich patellar tendon favour the formation of multiple patellae...
June 2017: Royal Society Open Science
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