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https://www.readbyqxmd.com/read/28819597/case-report-oblique-fracture-of-the-ulnar-sesamoid-bone-of-the-metacarpophalangeal-joint-a-rare-pathology
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28678964/arthritic-lesions-and-congenital-fusion-in-foot-bones-of-panochthus-sp-xenarthra-cingulata
#9
Fernando Henrique DE S Barbosa, Kleberson DE O Porpino, Bruce M Rothschild, Uiara G Cabral, Lilian P Bergqvist
A set of lesions are re-described and new pathological findings in foot bones of Panochthus sp. (Xenarthra, Cingulata) are presented. The material reexamined in fact presents enthesiophytes instead of osteoartrithis, as previously interpreted. Furthermore, Calcium Pyrophosphate Deposition Disease (CPPD) was observed, a lesion absent in previous report. CPPD also was found in another set of foot bones and it was associated with a congenital fusion of two sesamoids. The material studied were collected in two natural tank deposits, one in Paraíba (material reexamined) and other in Rio Grande do Norte (new pathological findings) State...
June 29, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28667673/on-the-presence-of-the-patella-in-frogs
#10
Virginia Abdala, Miriam C Vera, María Laura Ponssa
The patella is one of the most studied sesamoids. Historically, the patella is described as a big sesamoid embedded in the tendon of the quadriceps femoris muscle. This sesamoid is studied from developmental, functional, clinical and anatomical perspectives. The presence of a patella is reported in squamatans, birds and mammals. Lissamphibians are identified as the major lineage that fail to develop a patella. However, this sesamoid is reported at least once in anurans, but without detailed anatomical discussions...
July 1, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28650756/accessory-lesser-metatarsal-sesamoids-in-all-of-the-metatarsophalangeal-jointsa-case-report
#11
Selim Ergun, Baransel Saygı, İlyas Arslan, Yakup Yıldırım
Lesser metatarsal sesamoids are one of the most common accessory bones of the foot and are most commonly seen at the fifth metatarsophalangeal joint. They are rarely seen in other metatarsophalangeal joints. In the literature, there are reports of solitary accessory sesamoid bones seen at lesser metatarsophalangeal joints. We report the case of a 68-year-old woman with lesser metatarsal sesamoids accompanying all of the metatarsophalangeal joints.
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28637481/arthroscopic-treatment-of-focal-osteochondral-lesions-of-the-first-metatarsophalangeal-joint
#12
Ersin Kuyucu, Harun Mutlu, Serhat Mutlu, Baris Gülenç, Mehmet Erdil
BACKGROUND: Although arthroscopic surgical treatment of the first metatarsophalangeal (MTP) joint involves painful sesamoid excision, synovectomy, debridement, and partial cheilectomy, no gold standard treatment technique has been defined in the literature for hallux rigidus and focal osteochondral lesions. This study aimed to assess the arthroscopic treatment for early-grade focal osteochondral lesions of the first MTP joint and to determine the impact of arthroscopic microhole drill surgery on foot function and activities of daily living in a group of patients who failed conservative treatment...
June 21, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28635148/how-common-are-cranial-sesamoids-among-squamates
#13
Ricardo Montero, Juan D Daza, Aaron M Bauer, Virginia Abdala
Sesamoids are elements that originate as intratendinous structures due to genetic and epigenetic factors. These elements have been reported frequently in vertebrates, although cranial sesamoids have been recorded almost exclusively in non-tetrapod Osteichthyes. The only tetrapod cranial sesamoids reported until now have been the transiliens cartilage (of crocodiles and turtles), and another one located in the quadrate-mandibular joint of birds. Here, we examined seven squamate species using histological sections, dissections of preserved specimens, dry skeletons, cleared and stained specimens, computed tomographies (CT), and report the presence of other cranial sesamoids...
June 20, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28603570/successful-treatment-of-painful-synchondrosis-of-bipartite-patella-after-direct-trauma-by-operative-fixation-a-series-of-six-cases
#14
Sarkhell Radha, Michael Shenouda, Sujith Konan, Jonathon Lavelle, Samuel Church
INTRODUCTION: The patella is the largest sesamoid bone in the body and may have one (77%) or multiple (23%) ossification centres. Patellar and patellofemoral joint abnormalities are a common cause of anterior knee pain but symptomatic bipartite patella is an uncommon problem. CASE SERIES: We report a series of six cases of painful synchondrosis in bipartite patellae, all in keen athletes following a direct blow to the anterior aspect of the knee. A complete rupture of the synchondrosis with evidence of retropatellar chondral separation was seen on MRI scan in all cases...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28597591/morphological-variation-in-anuran-limbs-constraints-and-novelties
#15
Marissa Fabrezi, Javier Goldberg, Mariana Chuliver Pereyra
Anurans have three primary types of locomotion: walking, jumping, and swimming. Additionally, they may dig, climb, grasp, etc. All adult anurans have four limbs, with four fingers on the hands and five toes on the feet. We summarized and updated knowledge on the interspecific variation within anuran limbs, then discuss how developmental constraints (e.g., in size) and novelties may have influenced anuran diversification through the locomotion. We analyze morphological variation from limb bud stages up to the final limb form resulting from certain skeletal organization and growth...
September 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28580264/correction-of-recurred-hallux-valgus-deformity-by-endoscopic-distal-soft-tissue-procedure
#16
Tun Hing Lui
The underlying reason for recurrence of hallux valgus deformity after bunion surgery is multifactorial and includes surgeon-based and patient-based factors as well as original components of deformity initially unaddressed at the index procedure. Surgical treatment of a recurred hallux valgus deformity should be undertaken using the same guidelines for correction of a primary hallux valgus deformity. It requires correction of bony alignment, restoration of joint congruity, and achievement of soft tissue balance...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28536215/sesamoid-osteonecrosis-treated-with-radial-extracorporeal-shock-wave-therapy
#17
Dawn Thompson, Nikos Malliaropoulos, Nat Padhiar
Sesamoid osteonecrosis is a disabling condition resulting in severe forefoot pain, for which there are limited treatment options. We present a 52-year-old man with 1-year history of pain, aggravated by walking and playing tennis. On examination, pain was localised to plantar aspect of the first metatarsophalangeal joint. Imaging revealed evolving end-stage avascular necrosis of lateral sesamoid with early secondary degenerative changes. Previous exhaustive conservative treatment had been unsuccessful in alleviating his pain...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28527835/biomechanical-study-on-surgical-fixation-methods-for-minimally-invasive-treatment-of-hallux-valgus
#18
Rui Mao, Junchao Guo, Chenyu Luo, Yubo Fan, Jianmin Wen, Lizhen Wang
Hallux valgus (HV) was one of the most frequent female foot deformities. The aim of this study was to evaluate mechanical responses and stabilities of the Kirschner, bandage and fiberglass fixations after the distal metatarsal osteotomy in HV treatment. Surface traction of different forefoot regions in bandage fixation and the biomechanical behavior of fiberglass bandage material were measured by a pressure sensor device and a mechanical testing, respectively. A three-dimensional foot finite element (FE) model was developed to simulate the three fixation methods (Kirschner, bandage and fiberglass fixations) in weight bearing...
August 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28476396/nonsurgical-treatment-of-osteomyelitis-of-the-hallux-sesamoids-a%C3%A2-case-series-and-literature-review
#19
Flavien Mauler, Florian Wanivenhaus, Thomas Böni, Martin Berli
The aim of the present study was to determine the effectiveness of nonsurgical treatment for osteomyelitis of the hallucal sesamoids. Osteomyelitis of the hallucal sesamoids in young and healthy patients is rare and might originate from hematogenous spread or after a puncture wound. In diabetic patients with peripheral neuropathy, it often results from direct contiguous seeding from adjacent ulceration. The superiority of surgical versus nonsurgical therapy is still debated. In our institution, all patients presenting with osteomyelitis of the hallucal sesamoids are first treated nonsurgically but eventually usually require a surgical procedure...
May 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28449701/arthroscopic-treatment-of-focal-osteochondral-lesions-of-the-first-metatarsophalangeal-joint
#20
Ersin Kuyucu, Harun Mutlu, Serhat Mutlu, Baris Gülenç, Mehmet Erdil
BACKGROUND: Although arthroscopic surgical treatment of the first metatarsophalangeal (MTP) joint involves painful sesamoid excision, synovectomy, debridement, and partial cheilectomy, no gold standard treatment technique has been defined in the literature for hallux rigidus and focal osteochondral lesions. This study aimed to assess the arthroscopic treatment for early grade focal osteochondral lesions of the first MTP joint and to determine the impact of arthroscopic microhole drill surgery on foot function and activities of daily living in a group of patients who failed conservative treatment...
April 27, 2017: Journal of Orthopaedic Surgery and Research
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