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https://www.readbyqxmd.com/read/28993565/a-retrospective-study-of-radiographic-abnormalities-in-the-repositories-for-thoroughbreds-at-yearling-sales-in-japan
#1
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/28985103/low-bone-mineral-density-in-male-athletes-is-associated-with-bone-stress-injuries-at-anatomic-sites-with-greater-trabecular-composition
#2
Adam S Tenforde, Allyson L Parziale, Kristin L Popp, Kathryn E Ackerman
BACKGROUND: While sports participation is often associated with health benefits, a subset of athletes may develop impaired bone health. Bone stress injuries (BSIs) are a common overuse injury in athletes; site of injury has been shown to relate to underlying bone health in female athletes. Hypothesis/Purpose: This case series characterizes the association of type of sports participation and anatomic site of BSIs with low bone mineral density (BMD), defined as BMD Z-score <-1.0. Similar to female athletes, it was hypothesized that male athletes who participate in running and sustain BSIs in sites of higher trabecular bone content would be more likely to have low BMD...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28940671/osteology-and-radiology-of-the-maned-wolf-chrysocyon-brachyurus-pelvic-limb
#3
R C Siqueira, S C Rahal, L R Inamassu, M J Mamprim, M Felix, M S Castilho, L R Mesquita, V L Ribeiro, C R Teixeira, F B Rassy
This study describes the osteology and radiology of the pelvic limb in maned wolves. Ten (five live and five dead) maned wolves (Chrysocyon brachyurus), five males and five females, aged from 2 to 7 years old were used. Digital radiographs were taken and recorded for both pelvic limbs in all animals. Osteology was correlated with the radiographic images. The pelvis had a rectangular shape, and the obturator foramen (foramen obturatum) was oval. The femoral neck (collum femoris) was short and thick. The greater trochanter (trochanter major) extended proximally to near the dorsum of the femoral head (caput ossis femoris)...
September 20, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28874272/postcrania-of-the-most-primitive-euprimate-and-implications-for-primate-origins
#4
Doug M Boyer, Séverine Toussaint, Marc Godinot
The fossil record of early primates is largely comprised of dentitions. While teeth can indicate phylogenetic relationships and dietary preferences, they say little about hypotheses pertaining to the positional behavior or substrate preference of the ancestral crown primate. Here we report the discovery of a talus bone of the dentally primitive fossil euprimate Donrussellia provincialis. Our comparisons and analyses indicate that this talus is more primitive than that of other euprimates. It lacks features exclusive to strepsirrhines, like a large medial tibial facet and a sloping fibular facet...
October 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28868643/comparison-of-radiography-and-computed-tomography-to-evaluate-fractures-of-the-canine-tarsus
#5
Danielle Butler, Sarah Nemanic, Jennifer J Warnock
Detection and accurate classification of traumatic tarsal fractures are important for identifying cases requiring surgical intervention. The aim of this prospective, experimental, methods comparison study was to directly compare the accuracy, sensitivity, and specificity of tarsal computed tomography (CT), ten-view and two-view digital radiographs for detecting traumatic fractures of the canine tarsus. The working hypothesis was that tarsal fractures would be detected with higher accuracy, sensitivity, and specificity using CT imaging compared to radiography, and a ten-view would be superior to a two-view radiographic study...
September 3, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28844303/calcaneal-ewing-s-sarcoma-with-skip-metastases-to-tarsals-and-lymph-node-involvement-a-case-report
#6
Koray Şahin, Serkan Bayram, Ahmet Salduz
Ewing's sarcoma (ES) represents the second most common primary malignant tumor of bone of children and occurs rarely in the bones of the foot. Dissemination to regional lymph nodes and skip metastases to adjacent bones are thought to be uncommon. We report a case of a 19-year-old female with the diagnosis of ES of the right calcaneus. Six months earlier, she had presented to the hospital with a history of ankle sprain and was treated with analgesics and ice application. Despite the treatment, the pain over the ankle persisted, her foot swelled progressively, and a mass evolved on the lateral side of the foot...
August 22, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28842093/intraoperative-three-dimensional-navigation-for-talocalcaneal-coalition-resection
#7
William R Aibinder, Ernest Y Young, Todd A Milbrandt
Talocalcaneal tarsal coalitions are a common source of foot pain, stiffness, and deformity. These coalitions are treated symptomatically with rest and periods of immobilization. When those measures fail, surgical resection is attempted. This procedure is an anatomic challenge with the consequence of leaving residual coalition. The residual coalition primarily results from difficulty with intraoperative imaging because fluoroscopy does not provide adequate detail of this area. Some investigators have recommended intraoperative computed tomography after resection with reasonable results...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28833497/biomechanical-testing-of-the-calcified-metacarpal-articular-surface-and-its-association-with-subchondral-bone-microstructure-in-thoroughbred-racehorses
#8
A Williamson, N A Sims, C D L Thomas, P V S Lee, M Stevenson, R C Whitton
BACKGROUND: Palmar/plantar osteochondral disease (POD) and third metacarpal/-tarsal condylar fractures are considered fatigue injuries of subchondral bone (SCB) and calcified cartilage due to repetitive high loads in racehorses. In combination with adaptive changes in SCB in response to race training, the accumulation of SCB fatigue is likely to result in changes of joint surface mechanical properties. OBJECTIVES: To determine the spatial relationship and correlation of calcified articular surface biomechanical properties with SCB microstructure and training history in the distal palmar metacarpal condyle of Thoroughbred racehorses...
August 21, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28790476/surgical-treatment-of-sanders-type-2-calcaneal-fractures-using-a-sinus-tarsi-approach
#9
Chul Hyun Park, Dong Yeol Lee
BACKGROUND: Calcaneum is the most commonly fractured tarsal bone. The optimal treatment for displaced calcaneus fractures involving the posterior facet is surgical. The extensile lateral approach is commonly preferred because it provides sufficient exposure of the subtalar facet. However, this technique has the risk of complications such as wound necrosis and sural nerve injury. Various minimally invasive approaches, such as sinus tarsi approach, limited posterior approach, and percutaneous approach, have been introduced to reduce possible complications...
July 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28777279/fat-graft-and-bone-wax-interposition-provides-better-functional-outcomes-and-lower-reossification-rates-than-extensor-digitorum-brevis-after-calcaneonavicular-coalition-resection
#10
Javier Masquijo, Victoria Allende, Armando Torres-Gomez, Matthew B Dobbs
BACKGROUND: Calcaneonavicular coalitions are the most common form of tarsal coalitions. The prefered treatment for symptomatic coalitions is surgical resection; however, there are no published studies that directly compare different interposition techniques. The purpose of the present study was to retrospectively compare pain relief, functional outcomes, and complications of children and adolescents who had a resection of a symptomatic calcaneonavicular coalition with interposition of fat graft, bone wax, or extensor digitorum brevis (EDB)...
October 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28675805/characterization-of-normal-murine-carpal-bone-development-prompts-re-evaluation-of-pathologic-osteolysis-as-the-cause-of-human-carpal-tarsal-osteolysis-disorders
#11
Syndia Lazarus, Hsu-Wen Tseng, Felicity Lawrence, Maria A Woodruff, Emma L Duncan, Allison R Pettit
Multicentric carpal-tarsal osteolysis; multicentric osteolysis, nodulosis, and arthropathy; and Winchester syndromes, skeletal dysplasias characterized by carpal/tarsal and epiphyseal abnormalities, are caused by mutations in v-maf musculoaponeurotic fibrosarcoma oncogene ortholog B (MAFB), matrix metalloproteinase (MMP) 2, and MMP14, respectively; however, the underlying pathophysiology is unclear. Osteoclast-mediated osteolysis has been regarded as the main mechanism, but does not explain the skeletal distribution...
September 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28668579/a-candidate-imaging-marker-for-early-detection-of-charcot-neuroarthropathy
#12
Paul K Commean, Kirk E Smith, Charles F Hildebolt, Kathryn L Bohnert, David R Sinacore, Fred W Prior
Inflammation-mediated foot osteopenia may play a pivotal role in the etiogenesis, pathogenesis, and therapeutic outcomes in individuals with diabetes mellitus (DM), peripheral neuropathy (PN), and Charcot neuroarthropathy (CN). Our objective was to establish a volumetric quantitative computed tomography-derived foot bone measurement as a candidate prognostic imaging marker to identify individuals with DMPN who were at risk of developing CN. We studied 3 groups: 16 young controls (27 ± 5 years), 20 with DMPN (57 ± 11 years), and 20 with DMPN and CN (55 ± 9 years)...
June 28, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28650764/dorsal-fracture-dislocation-of-the-tarsal-navicularcase-report-and-review-of-a-rare-injury
#13
Isidro Jimenez, Juan Pedro Rodriguez-Alvarez, Ricardo Navarro-Navarro
Fracture-dislocations of the tarsal navicular are rare and highly complex injuries to the midfoot. The only published data on this type of fracture are clinical case reports. These injuries are normally caused by high-energy trauma, and their pathophysiology and most appropriate treatment remain unclear. We report a clinical case of a dorsal fracture-dislocation of the tarsal navicular bone associated with a medial swivel dislocation of the Chopart joint caused by a bicycle fall in a 20-year-old healthy man...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28626896/gestation-length-and-racing-performance-in-115-thoroughbred-foals-with-incomplete-tarsal-ossification
#14
L Haywood, D L Spike-Pierce, Bonnie Barr, D Mathys, D Mollenkopf
BACKGROUND: Incomplete ossification of the cuboidal bones of the carpus and tarsus in foals has the potential for significant consequences including chronic lameness and decreased athletic ability. OBJECTIVES: To determine if the degree of ossification of the cuboidal bones is associated with gestational length. To determine if the diagnosis of incomplete ossification is a predictor of performance in Thoroughbred racehorses. STUDY DESIGN: Retrospective cohort study...
June 19, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28533626/nonhealing-progressive-stress-fractures-of-the-foot-in-a-13-year-old-basketball-player-is-vitamin-k-deficiency-a-risk-factor
#15
Meral Bayramoğlu, Nuray Ünlütürk
[Purpose] To report an adolescent male basketball player with nonhealing stress fractures of the foot and discuss the probable factors. [Subject and Methods] A 13-year-old basketball player presented with right foot pain. He had been playing basketball for three years and practicing 5 days/week. He denied any increase in daily training intensity. Magnetic resonance imaging confirmed stress fractures of the cuboid and cuneiform, with mild edema of the soft tissues between the tarsal bones and tenosynovitis of the flexor hallucis and flexor digitorum longi...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28514509/the-dimensions-of-the-tarsal-sinus-and-canal-in-different-foot-positions-and-its-clinical-implications
#16
R P Kleipool, L Blankevoort, J M Ruijter, G M M J Kerkhoffs, R J Oostra
This study presents a reference for the dimensions of the tarsal sinus and canal in healthy adults in different foot positions to facilitate understanding of the kinematics of the subtalar joint, the effect of an implant, and other clinical issues. In a 3D CT stress test on 20 subjects, the right foot was forced into a neutral and eight different extreme foot positions while CT scans were obtained. The bones were segmented in the neutral foot position. The kinematics of the bones in the extreme positions were determined relative to the neutral position...
May 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28373932/endoscopic-resection-of-dorsal-boss-of-the-second-and-third-tarsometatarsal-joints
#17
Tun Hing Lui
Dorsal boss of the foot also known as "tarsal boss," "dorsal exostosis," and "humped bone" is a bone spur that grows from one of the intertarsal or tarsometatarsal joints. It can occur with or without arthritis of the underlying joints. Surgery is indicated if the symptoms do not respond to conservative treatment. Excision of the dorsal boss with or without fusion of the underlying joint is the operative treatment of choice. We report an arthroscopic approach of resection of the dorsal exostosis. Arthroscopic arthrodesis if indicated can be performed through the same portals...
February 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28345764/the-tarsal-metatarsal-complex-of-caviomorph-rodents-anatomy-and-functional-adaptive-analysis
#18
Adriana M Candela, Nahuel A Muñoz, César M García-Esponda
Caviomorph rodents represent a major adaptive radiation of Neotropical mammals. They occupy a variety of ecological niches, which is also reflected in their wide array of locomotor behaviors. It is expected that this radiation would be mirrored by an equivalent disparity of tarsal-metatarsal morphology. Here, the tarsal-metatarsal complex of Erethizontidae, Cuniculidae, Dasyproctidae, Caviidae, Chinchillidae, Octodontidae, Ctenomyidae, and Echimyidae was examined, in order to evaluate its anatomical variation and functional-adaptive relevance in relation to locomotor behaviors...
June 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28270861/computed-tomography-derived-bone-density-measurement-in-the-diabetic-foot
#19
Alex Barwick, John Tessier, James Mirow, Xanne Janse de Jonge, Vivienne Chuter
BACKGROUND: The accurate and reliable measurement of foot bone density is challenging and there is currently no gold standard technique. Such measurement is particularly valuable in populations at risk of foot bone pathology such as in those with long term diabetes. With research and development, computed tomography may prove to be a useful tool for this assessment. The aim of this study was to establish the reliability of a novel method of foot bone density measurement in people with diabetes using computed tomography...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28269397/hardness-map-of-human-meta-tarsals-and-phalanges-of-toes
#20
Irfan Manarvi
Predicting location of fracture in human bones has been a keen area of research for the past few decades. A variety of tests for hardness, deformation and strain field measurement have been conducted in the past; but considered insufficient due to various limitations. Researchers therefore have proposed further studies due to inaccuracies in measurement methods, testing machines and experimental errors. Advancement and availability of hardware, measuring instrumentation and testing machines can now provide remedies to these limitations...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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