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https://www.readbyqxmd.com/read/29457393/-anatomical-study-on-the-reconstruction-of-the-metacarpal-bone-with-autogenous-iliac-crest-grafting
#1
Dao-Yi Miao, Ling-Zhou Zhang, Hui-Hui Li, Guo-Jing Yang
OBJECTIVE: To explore the similarity between the iliac crest and the metacarpal bone, so as to provide an anatomical basis for the reconstruction of the metacarpal bone of the hand with the iliac crest grafting. METHODS: There are 16 upper limb specimens and 10 pelvic specimens. The morphological features of the second, third, fourth and 5th metacarpal bones and iliac crest were observed. The following indexes were measured: arc height and length of metacarpal head articular surface, volar-dorsal metacarpal diameter, ulnoradial diamater, arc height and length of iliac crest, and inner and outer diameter...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29447761/new-neandertal-wrist-bones-from-el-sidr%C3%A3-n-spain-1994-2009
#2
Tracy L Kivell, Antonio Rosas, Almudena Estalrrich, Rosa Huguet, Antonio García-Tabernero, Luis Ríos, Marco de la Rasilla
Twenty-nine carpal bones of Homo neanderthalensis have been recovered from the site of El Sidrón (Asturias, Spain) during excavations between 1994 and 2009, alongside ∼2500 other Neandertal skeletal elements dated to ∼49,000 years ago. All bones of the wrist are represented, including adult scaphoids (n = 6), lunates (n = 2), triquetra (n = 4), pisiforms (n = 2), trapezia (n = 2), trapezoids (n = 5), capitates (n = 5), and hamates (n = 2), as well as one fragmentary and possibly juvenile scaphoid. Several of these carpals appear to belong to the complete right wrist of a single individual...
January 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29446086/subchondral-bone-morphology-in-the-metacarpus-of-racehorses-in-training-changes-with-distance-from-the-articular-surface-but-not-with-age
#3
Sandra Martig, Peta L Hitchens, Mark A Stevenson, R Chris Whitton
The repetitive large loads generated during high-speed training and racing commonly cause subchondral bone injuries in the metacarpal condyles of racehorses. Adaptive bone modelling leads to focal sclerosis at the site of highest loading in the palmar aspect of the metacarpal condyles. Information on whether and how adaptive modelling of subchondral bone changes during the career of a racehorse is sparse. The aim of this cross-sectional study was to describe the changes in subchondral bone micromorphology in the area of highest loading in the palmar aspect of the metacarpal condyle in thoroughbred racehorses as a function of age and training...
February 15, 2018: Journal of Anatomy
https://www.readbyqxmd.com/read/29445615/thermodynamic-effects-of-commercially-available-ice-boots
#4
Madison N Quintanar, Tess Pu'uwaionalani Millar, Matthew A Burd
The limb of the equine athlete is subjected to all types of various stressors during exercise. To ensure the health of the horse and to prevent the possibility of lameness, it has been a common practice to apply cold therapy to the distal limb of the horse pre- and post-exercise. Commercially available boots are widely available for the application of cold therapy. To test the effectiveness of the boot, 6 healthy performance level sport type horses were exercised at a walk, trot, and canter in a round-pen and then subjected to the application of the ice boot for 20 minutes on a treatment leg, and no ice boot on an untreated leg...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29428246/measurement-of-carpal-alignment-indices-using-3-dimensional-computed-tomography
#5
Ki Won Lee, Joo Yul Bae, Dong-Kyo Seo, Sang Bum Kim, Hyun Il Lee
PURPOSE: This study aimed to establish normal values for wrist carpal alignment measured by 3-dimensional computed tomography (CT) and to show the inter- and intraobserver reliability of this measurement compared with simple radiography. METHODS: The study utilized 3-dimensional CT and simple radiography of wrist joints in 30 asymptomatic volunteers. The wrist position was standardized using a custom-designed positioning device. Three independent observers measured carpal alignment parameters including distal radius articular angle, radiolunate angle, radioscaphoid angle, radiocapitate angle, radius-third metacarpal angle, scapholunate angle, lunocapitate angle, and lunate-third metacarpal angle...
February 7, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29425276/giant-cell-tumor-of-bone-in-patients-55-years-and-older-a-study-of-34-patients
#6
Cory J Broehm, Carrie Y Inwards, Alyaa Al-Ibraheemi, Doris E Wenger, Sarah M Jenkins, Long Jin, Andre M Oliveira, Riyam T Zreik, Jodi M Carter, Jennifer M Boland, Karen J Fritchie
Objectives: Most giant cell tumors of bone (GCTs) occur in patients aged 20 to 40 years. We analyzed features of GCT in patients 55 years or older. Methods: GCTs were examined for fibrosis, matrix, cystic change, histiocytes, mitoses, and necrosis. Clinical/radiologic data were collected. Results: Thirty-four (5%) of 710 GCTs occurred in patients older than 55 years (14/20 male/female; 56-83 years) in long bones (n = 24), vertebrae (n = 6), pelvis (n = 3), and metacarpal (n = 1)...
February 7, 2018: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29417635/magnetic-resonance-imaging-following-regional-limb-perfusion-of-gadolinium-contrast-medium-in-26-horses
#7
S Aarsvold, M Solano, J Garcia-Lopez
BACKGROUND: Systemic administration of gadolinium contrast medium is common in small animals to increase lesion conspicuity and determine vascularisation of lesions identified with magnetic resonance imaging (MRI); however, the large volume required for systemic administration limits its use in equine patients. OBJECTIVES: The purpose of this study was to assess the feasibility of administering a low dose of contrast medium via venous regional limb perfusion. STUDY DESIGN: Prospective clinical study...
February 8, 2018: Equine Veterinary Journal
https://www.readbyqxmd.com/read/29411672/management-of-fracture-dislocations-of-the-little-finger-carpometacarpal-joint-a-systematic-review
#8
Will A Cobb, Lewis Dingle, Raina Zarb Adami, Jeremy Rodrigues
Fracture-dislocations of the carpometacarpal joint (CMCJ) of the little ray involve dorsal subluxation of the metacarpal base and they may be associated with injury of neighbouring CMCJs. Different treatment options are described, with no clear consensus on their management. This study presents a systematic review of comparative studies describing the management of these injuries. A bespoke search strategy was applied across multiple databases. Results were screened against specified stepwise inclusion criteria and data were extracted independently by two authors with discrepancy resolution by a third...
January 1, 2018: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29410871/the-evolution-and-anatomy-of-the-horse-manus-with-an-emphasis-on-digit-reduction
#9
Nikos Solounias, Melinda Danowitz, Elizabeth Stachtiaris, Abhilasha Khurana, Marwan Araim, Marc Sayegh, Jessica Natale
We revisit digit reduction in the horse and propose that all five digits are partially present in the modern adult forelimb. Osteological descriptions of selected tetradactyl, tridactyl and monodactyl equids demonstrate the evolution of the forelimb. Histological, osteological and palaeontological evidence suggest that the Equus distal forelimb is more complex than traditionally conceived. The current understanding is that the horse distal forelimb consists of one complete digit (III) and two reduced splint metacarpals (II and IV)...
January 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29410077/simplified-internal-fixation-of-fifth-metacarpal-neck-fractures
#10
L Amsallem, J Pierrart, T Bihel, J Sekri, T Lafosse, E Masmejean, D Delgrande
BACKGROUND: Fifth metacarpal neck fractures (boxer's fractures) are common injuries that contribute 20% of all hand fractures. Divergent percutaneous pinning (bouquet fixation) as described by Foucher has gained popularity but is challenging and at times arduous, as it requires the insertion of several slender K-wires into a narrow medullary canal. Here, we report on a simplified technique in which a single thick K-wire is inserted. TECHNIQUE: An 18/10 K-wire is bent at one end then mounted on a drill chuck...
January 31, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29409428/pyrolytic-carbon-hemiarthroplasty-for-avascular-necrosis-of-the-metacarpal-head-a-case-report
#11
Kahyun Kim, Hyun Sik Gong, Goo Hyun Baek
Avascular necrosis of the metacarpal head is a rare entity. Surgical interventions, such as curettage, bone-grafting, and osteotomy, have been reported in symptomatic patients. We present a patient who underwent pyrolytic carbon hemiarthroplasty of the metacarpal head and had satisfactory outcomes at 1-year follow-up.
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409416/attrition-of-the-extensor-tendon-of-the-index-finger-following-an-avulsion-fracture-of-the-third-metacarpal
#12
Hiroshi Yamazaki, Shunsuke Miyaoka, Hiroyuki Kato
We report an avulsion fracture at the base of the third metacarpal involving the extensor carpi radialis brevis insertion and a resulting complication of attritional rupture of the extensor indicis proprius tendon and the extensor digitorum communis to the index finger, in a 67-year-old man.
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29409406/the-bilobed-racquet-flap-or-extended-seagull-flap-for-thumb-reconstruction-a-case-report
#13
José Couceiro, Mariangeles De la Red-Gallego, Luis Yeste, Higinio Ayala, Manuel Sanchez-Crespo, Olga Velez, Rebeca Barcenilla, Fernando Del Canto
The treatment of extensive soft tissue defects in the thumb with dorsal metacarpal artery flaps has been previously reported in the literature. Island flaps from the dorsum of the index and long fingers have been the subject of many reports and studies. However, when the defect involves the whole thumb, a 360° circumferential defect, standard first or second dorsal metacarpal artery flaps are usually insufficient. There are fewer reports on the use of bilobed flaps for this application and we have found no reports on the use of bilobed racquet flaps or extended seagull flaps as treatment for this condition...
March 2018: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29402720/a-review-of-upper-limb-injuries-in-bear-maul-victims-consistent-pattern-and-inverse-relation-in-severity-with-facial-and-scalp-injuries
#14
Towseef Ahmad Bhat, Amara Gulzar, Aejaz Ahmad Bhat, Tariq Ahmad Bhat, Zameer Ali
PURPOSE: Bear maul injuries are the most common wild animal inflicted injuries in India. More than 300 bear maul injuries report to our hospital per year. METHODS: Twenty-one consecutive patients over a period of 1 year reported to our department for orthopaedic management of bear maul injuries. All the patients were referred either from peripheral hospitals or from other surgical departments of our hospital. RESULTS: All the patients had facial/scalp injuries of variable severity...
November 24, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29398612/routine-closure-of-the-donor-site-with-a-second-dorsal-metacarpal-artery-flap-to-avoid-the-use-of-a-skin-graft-after-harvest-of-a-first-dorsal-metacarpal-artery-flap
#15
Zhenglin Chi, Damu Lin, Yiheng Chen, Jixin Xue, Shi Li, Tinggang Chu, Zhijie Li
AIM: Closure of the donor site on the index finger after raising a first dorsal metacarpal artery (DMA) flap harvest is challenging. The conventional choice is to use a full-thickness skin graft. However, this procedure is associated with several complications and a second donor site to harvest the skin graft is inevitable. The aim of this study was to design a modified incision to allow harvest of a first DMA flap without skin graft. METHODS: From 2015 to 2016, 18 patients with a soft tissue defect of the thumb had reconstruction of the defect using a first DMA flap...
February 1, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29397244/cataract-in-a-patient-with-47-xyy-sex-chromosome-aneuploidy
#16
A Medina-Andrade, C Villanueva-Mendoza, S Arenas, V Cortés-González
CASE REPORT: The case concerns a 16 year-old boy with a history of high myopia and unilateral congenital cataract, tall stature for age, facial dysmorphism, hypermobile metacarpal-phalangeal joints, as well as behavioural problems. The mother had a history of recurrent pregnancy loss. Chromosomal analysis of the peripheral blood lymphocytes reported 47,XYY. DISCUSSION: Patients with sex chromosome aneuploidy 47,XYY have higher risk of congenital malformations, although ophthalmological anomalies are unusual...
January 31, 2018: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29393732/outcome-of-limb-fracture-repair-in-rabbits-139-cases-2007-2015
#17
Hiroshi Sasai, Daisuke Fujita, Eiko Seto, Yuki Denda, Yutaro Imai, Kanako Okamoto, Kensaku Okamura, Masaru Furuya, Hiroyuki Tani, Kazumi Sasai
OBJECTIVE To evaluate outcome of limb fracture repair in rabbits. DESIGN Retrospective case series. ANIMALS 139 client-owned rabbits with limb fractures treated between 2007 and 2015. PROCEDURES Medical records were reviewed for information on fracture location, fracture treatment, and time to fracture healing. RESULTS 25 rabbits had fractures involving the distal aspects of the limbs (ie, metacarpal or metatarsal bones, phalanges, and calcaneus or talus). Fractures were treated in 23 of these 25 rabbits (external coaptation, n = 17; external skeletal fixation, 4; and intramedullary pinning, 2) and healed in all 23, with a median healing time of 28 days (range, 20 to 45 days)...
February 15, 2018: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/29389896/a-novel-non-invasive-selection-criterion-for-the-preservation-of-primitive-dutch-konik-horses
#18
Sharon May-Davis, Wendy Y Brown, Kathleen Shorter, Zefanja Vermeulen, Raquel Butler, Marianne Koekkoek
The Dutch Konik is valued from a genetic conservation perspective and also for its role in preservation of natural landscapes. The primary management objective for the captive breeding of this primitive horse is to maintain its genetic purity, whilst also maintaining the nature reserves on which they graze. Breeding selection has traditionally been based on phenotypic characteristics consistent with the breed description, and the selection of animals for removal from the breeding program is problematic at times due to high uniformity within the breed, particularly in height at the wither, colour (mouse to grey dun) and presence of primitive markings...
February 1, 2018: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/29383834/nonsense-mutations-in-fzd2-cause-autosomal-dominant-omodysplasia-robinow-syndrome-like-phenotypes
#19
Keisuke Nagasaki, Gen Nishimura, Toru Kikuchi, Hiromi Nyuzuki, Sunao Sasaki, Yohei Ogawa, Akihiko Saitoh
Omodysplasia-2 (OMOD2; OMIM%16475) is a rare autosomal dominant (AD) skeletal dysplasia characterized by shortened humeri, short first metacarpal, craniofacial dysmorphism (frontal bossing, depressed nasal bridge, bifid nasal tip, and long philtrum), and variable degrees of genitourinary anomalies. This clinical phenotype overlaps with that of AD type Robinow syndrome. Recently, a mutation in FZD2 encoding a Frizzled Class Receptor 2 has been identified in a family with AD omodysplasia (an affected girl and her affected mother)...
January 31, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29381837/ossification-pattern-in-forelimbs-of-the-siamese-crocodile-crocodylus-siamensis-similarity-in-ontogeny-of-carpus-among-crocodylian-species
#20
Martina Gregorovičová, Alena Kvasilová, David Sedmera
Crocodylians have highly derived elongated carpus, which is related to their use of forelimbs in many types of gaits as well as in burrowing. The objective of present study was to describe the ossification of the forelimb in five stages of Siamese crocodile (Crocodylus siamensis). The ossification begins approximately at stage 20 in arm and forearm bones moving sequentially to the metacarpal elements. The first carpal elements with ossification centers are radiale+intermedium and ulnare (stage 22 - 23), and their ossification mode is typical of long bones...
January 30, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
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