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https://www.readbyqxmd.com/read/29338733/effect-of-metatarsal-osteotomy-and-open-lateral-soft-tissue-procedure-on-sesamoid-position-radiological-assessment
#1
Young Rak Choi, Sang-June Lee, Jun Hyun Kim, Tae Ho Kim, Chi Hoon Oh
BACKGROUND: Incomplete sesamoid reduction is a potential risk factor for the recurrence of hallux valgus. The purpose of this study was to radiologically investigate changes in sesamoid position after chevron osteotomy and the open lateral soft tissue procedure. METHODS: Sixty-eight feet that underwent operative correction for hallux valgus deformity were reviewed consecutively. The hallux valgus angle (HVA), first to second intermetatarsal angle (IMA), tibial sesamoid position (TSP), distance of the fibular sesamoid (DFS), and translation of the metatarsal head (TMH) were evaluated preoperatively and at final follow-up...
January 16, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29322497/genetics-of-patella-hypoplasia-agenesis
#2
REVIEW
C Vanlerberghe, N Boutry, F Petit
The patella is a sesamoid bone, crucial for knee stability. When absent or hypoplastic, recurrent knee subluxations, patello-femoral dysfunction and early gonarthrosis may occur. Patella hypoplasia/agenesis may be isolated or observed in syndromic conditions, either as the main clinical feature (Nail-Patella syndrome, Small Patella syndrome), as a clue feature which can help diagnosis assessment, or as a background feature that may be disregarded. Even in the latter, the identification of patella anomalies is important for an appropriate patient management...
January 11, 2018: Clinical Genetics
https://www.readbyqxmd.com/read/29320937/radiographic-measurements-associated-with-the-natural-progression-of-the-hallux-valgus-during-at-least-2-years-of-follow-up
#3
Seung Yeol Lee, Chin Youb Chung, Moon Seok Park, Ki Hyuk Sung, Sonya Ahmed, Seungbum Koo, Dong-Wan Kang, Kyoung Min Lee
BACKGROUND: This study aimed to investigate the radiographic measurements associated with the progression of hallux valgus during at least 2 years of follow-up. METHODS: Seventy adult patients with hallux valgus who were followed for at least 2 years and underwent weightbearing foot radiography were included. Radiographic measurements included the hallux valgus angle (HVA), hallux interphalangeal angle, intermetatarsal angle (IMA), metatarsus adductus angle, distal metatarsal articular angle (DMAA), tibial sesamoid position, anteroposterior (AP) talo-first metatarsal angle, and lateral talo-first metatarsal angle...
January 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29314775/the-relationship-between-digit-independence-and-digital-sesamoids-in-humans-and-a-proposal-of-a-new-digital-sesamoid-evolutionary-hypothesis
#4
Kaissar Yammine
Digital sesamoids are found in the metapodial-phalangeal joints of most mammals and quadrupedal tetrapods, yet their functional significance is still unclear. During primate evolution, a slight decline in their frequency has been associated with brachiation in gibbons, followed by a quasi-complete absence in orangutans then a slight resurgence occurred in gorillas and chimpanzees. Simultaneously, forearm muscles showed a progressive division in hominoid evolution towards a more "individualistic" musculature yielding more mobility and independence to some fingers...
January 3, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29312840/relationship-between-the-intersesamoid-ligament-and-sesamoid-bones-in-cadaveric-feet-with-hallux-valgus
#5
Regina C Fiacco, Garen M Ream, Charlotte Wilson, R Shane Tubbs, Marios Loukas, Piotr B Kozlowski, Anthony C DiLandro, Kevin T Jules, Anthony V D'Antoni
There is heterogeneity in the literature regarding the anatomy, exact location, and definition of the intersesamoid ligament (IL). Anatomic knowledge of the IL and its variations are important for surgeons who undertake corrective surgery for hallux abducto valgus (HAV). The IL was dissected in 16 feet from 32 formalin-fixed cadavers (12 females, four males; mean age at death, 76.6 years) to examine its morphology. The length, width, and thickness of its constituent bands were recorded with a digital caliper...
November 3, 2017: Curēus
https://www.readbyqxmd.com/read/29230422/novel-semiquantitative-bone-marrow-oedema-score-and-fracture-score-for-the-magnetic-resonance-imaging-assessment-of-the-active-charcot-foot-in-diabetes
#6
L Meacock, N L Petrova, Ana Donaldson, A Isaac, A Briody, R Ramnarine, M E Edmonds, D A Elias
There are no accepted methods to grade bone marrow oedema (BMO) and fracture on magnetic resonance imaging (MRI) scans in Charcot osteoarthropathy. The aim was to devise semiquantitative BMO and fracture scores on foot and ankle MRI scans in diabetic patients with active osteoarthropathy and to assess the agreement in using these scores. Three radiologists assessed 45 scans (Siemens Avanto 1.5T, dedicated foot and ankle coil) and scored independently twenty-two bones (proximal phalanges, medial and lateral sesamoids, metatarsals, tarsals, distal tibial plafond, and medial and lateral malleoli) for BMO (0-no oedema, 1-oedema < 50% of bone volume, and 2-oedema > 50% of bone volume) and fracture (0-no fracture, 1-fracture, and 2-collapse/fragmentation)...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29210097/radiography-of-the-distal-extremity-of-the-manus-in-the-donkey-foal-normal-images-and-quantitative-characterization-from-birth-to-2%C3%A2-years-of-age-a-pilot-study
#7
B Van Thielen, I Willekens, A Van der Schicht, P Pestieau, F Verhelle, P Goossens, R Decoster, O Jacqmot, P Delperdange, V Busoni, G De Mol, N Buls, S Provyn, M Kichouh, J de Mey, R Murray
This study describes a radiographic survey of the anatomical development of the distal extremity of the manus in the donkey from 0 to 2 years of age. The right distal limb of 10 donkey foals, born in the spring of 2012, underwent radiographs every month for the first 6 months of age and every 3 months during the following 18 months. Latero-medial radiographs with and without barium marker at the coronary band and dorso-palmar radiographs with both front feet in weight bearing were obtained. The distal physis of the third metacarpal bone and the proximal physis of the proximal phalanx (phalanx proximalis) were closed at the mean age of 18...
December 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29209577/new-anatomical-information-of-the-wukongopterid-kunpengopterus-sinensis-wang-et-al-2010-based-on-a-new-specimen
#8
Xin Cheng, Shunxing Jiang, Xiaolin Wang, Alexander W A Kellner
The Wukongopteridae compose a non-pterodactyloid clade of pterosaurs that are the most abundant flying reptiles in the deposits of the Middle-Late Jurassic Yanliao Biota. Until now, five species of three genera and two additional unnamed specimens have been described. Here we report on a new material, IVPP V 23674, that can be referred to the wukongopterid Kunpengopterus sinensis due to several features such as a comparably short nasoantorbital fenestra, the dorsally rising posterodorsal margin of the ischium, and the very short first pedal phalanx of digit V relative to metatarsal IV...
2017: PeerJ
https://www.readbyqxmd.com/read/29202503/quantitative-analysis-and-development-of-the-fore-feet-of-arabian-foals-from-birth-to-1-year-of-age
#9
Babak Faramarzi, Allison Salinger, Andris Kaneps, Yvette Nout-Lomas, Holly Greene, Fanglong Dong
Objectives The goal of this study was to quantify external and internal anatomical characteristics of the foal foot throughout the first year of age. Methods Digital radiographs and photographs were taken bimonthly of the forefeet of nine Arabian foals, beginning at about 2 weeks of age until 12 months of age. Sixty-eight linear and angular variables were measured using NIH (National Institutes of Health) Image J software. Statistical analyses were performed using piecewise random coefficient model and p-values < 0...
November 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29202499/evaluation-of-intra-and-inter-observer-measurement-variability-of-a-radiographic-stifle-osteoarthritis-scoring-system-in-dogs
#10
Marlis Wessely, Andreas Brühschwein, Eva Schnabl-Feichter
Objectives To evaluate the intra- and inter-observer measurement variability of an existing osteoarthritis (OA) stifle scoring system. Methods Paired caudocranial and mediolateral canine stifle radiographs were selected randomly. A total of 15 assessment points were evaluated independently and graded twice (integer numeric scale: 1-4) at an interval of 2 weeks by three observers with different levels of experience. The grades for each of the 15 factors were summed to obtain the OA score for each patient...
November 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29200662/gearing-effects-of-the-patella-knee-extensor-muscle-sesamoid-of-the-helmeted-guineafowl-during-terrestrial-locomotion
#11
V R Allen, R E Kambic, S M Gatesy, J R Hutchinson
Human patellae (kneecaps) are thought to act as gears, altering the mechanical advantage of knee extensor muscles during running. Similar sesamoids have evolved in the knee extensor tendon independently in birds, but it is unknown if these also affect the mechanical advantage of knee extensors. Here, we examine the mechanics of the patellofemoral joint in the helmeted guineafowl Numida meleagris using a method based on muscle and tendon moment arms taken about the patella's rotation centre around the distal femur...
November 2017: Journal of Zoology: Proceedings of the Zoological Society of London
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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