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https://www.readbyqxmd.com/read/28636299/-sprain-of-the-thumb-metacarpal-phalangeal-with-lesion-of-the-ulnar-collateral-ligament
#1
Thibault Poujade, Grégoire Chick
The sprain of the thumb metacarpal-phalangeal joint must be treated in an adapted way in order to avoid chronic laxity. The comparative and bilateral clinical exam is the main element that will allow to detect laxity. In the case of non laxity, a conservative treatment with a splint makes sense. In the case of laxity with Stener effect, a surgical procedure is recommended in order to reintegrate the collateral ligament. In the case of laxity without Stener effect, the choice of treatment is contentious. A US or MRI would be useful if the Stener effect could be underlying...
May 17, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28636057/symmetrical-brachydactyly-in-a-dog
#2
Megan T Cray, Ursula Krotscheck, Anthony J Fischetti, Kim Tong
Congenital malformations of the canine manus and pes are infrequently reported in the veterinary literature. This includes brachydactyly which is a general term used to indicate the shortening of digits due to abnormal development of the phalanges, metacarpals, or metatarsals. This case report describes isolated brachydactyly in a one-year-old male Maremma Sheepdog affecting all of the phalanges, metacarpals, and metatarsals of digits two through five. This condition was confirmed by determining the length of each phalanx, metacarpal, and metatarsal of the affected dog as well as an unaffected littermate...
June 21, 2017: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/28635076/supernumeraries-in-nicolaides-baraitser-syndrome
#3
Bouthayna Al-Tamimi, Stefan Abela, Huw G Jeremiah, Robert D Evans
BACKGROUND: Nicolaides-Baraitser Syndrome(NCBRS) is an extremely rare condition which has been reported in only a few cases. NCBRS is a distinct clinical condition with typical clinical features of pre- and post-natal global developmental delay, impaired speech, and seizures. Microcephaly, sparse hair, anteverted alae nasi, undefined philtrum, prominence of distal phalanges and interphalangeal joints, and short metacarpals are also typical of NCBRS. CASE REPORT: There are no reported cases in the literature of patients with NCBRS presenting with multiple dental impactions, and to the authors' knowledge, this is the 28th fully documented case of NCBRS and only 75 cases identified as potentially having NCBRS...
June 21, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28631937/the-effect-of-the-sagittal-ridge-angle-on-cartilage-stress-in-the-equine-metacarpo-phalangeal-fetlock-joint
#4
Helen Liley, Helen Davies, Elwyn Firth, Thor Besier, Justin Fernandez
Fatigue failure of bones of the metacarpo-phalangeal (fetlock, MCP) joint is common in thoroughbred racehorses. Stresses within the fetlock joint cartilages are affected by the morphology of the third metacarpal bone (MC3) and proximal phalangeal bone, and the steepness of the median sagittal ridge of MC3 is believed to be associated with fracture. This study investigated the influence of the steepness of the sagittal ridge on cartilage stress distribution using a finite element model of the joint. Changes to the steepness of the sagittal ridge were made by applying a parabolic function to the mesh, creating four different models with sagittal ridge angles ranging from 95° to 105°...
June 15, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28630840/suspension-arthroplasty-combined-with-ligament-reconstruction-of-the-thumb-carpometacarpal-joint-to-salvage-two-failed-arthroplasties-a-case-report
#5
Ryosuke Kakinoki, Kazuhiko Hashimoto, Hiroki Tanaka, Masao Akagi
INTRODUCTION: Thumb basal joint arthroplasty with removal of the entire trapezium is often followed by proximal subsidence and impingement of the thumb metacarpal to the scaphoid, which is a common cause of post-operative thumb pain. Treatment of this impingement is a challenge among surgeons. We performed suspension arthroplasty combined with intercarpal ligament reconstruction using a strip of the extensor carpi radialis longus (ECRL) tendon on a patient suffering from pain caused by this type of the impingement and obtained a successful outcome...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28610170/integration-of-molecular-bioacoustical-and-morphological-data-reveals-two-new-cryptic-species-of-i-pelodytes-i-anura-pelodytidae-from-the-iberian-peninsula
#6
Jesús Díaz-Rodríguez, Marcelo Gehara, Rafael Márquez, Miguel Vences, Helena Gonçalves, Fernando Sequeira, Iñigo Martínez-Solano, Miguel Tejedo
Parsley frogs (Pelodytes) comprise the only genus in the family Pelodytidae, an ancient anuran lineage that split from their closest relatives over 140 million years ago. Pelodytes is a Palearctic group restricted to Western Eurasia including three extant species: the eastern species P. caucasicus, endemic to the Caucasus area, and two closely related species inhabiting Western Europe: the Iberian endemic P. ibericus and the more widespread P. punctatus. Previous studies based on mitochondrial and nuclear DNA markers have revealed the existence of two additional lineages of Parsley frogs in the Iberian Peninsula, which have been flagged as candidate species...
March 13, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609972/a-new-species-of-the-genus-i-microhyla-i-anura-microhylidae-from-eastern-nepal
#7
Janak Raj Khatiwada, Guo Cheng Shu, Shou Hong Wang, Arjun Thapa, Bin Wang, Jianping Jiang
A new species of the genus Microhyla is described from Jamun Khadi, Jhapa district of eastern Nepal, based on molecular and morphological comparisons. This species is the sister taxon of Microhyla ornata and can be distinguished by a unique vocalization, morphology and molecular phylogeny. The uncorrected genetic divergences based on rRNA gene between the new species and its closest congeners, M. nilphamariensis, M. ornata and M. rubra were 5.34%, 6.67%, and 8.31%, respectively. The new species, Microhyla taraiensis sp...
April 12, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609910/the-dark-side-of-pumpkin-toadlet-a-new-species-of-i-brachycephalus-i-anura-brachycephalidae-from-serra-do-brigadeiro-southeastern-brazil
#8
Carla Silva Guimarães, Sofia Luz, Pedro Carvalho Rocha, Renato Neves Feio
Brachycephalus is a frog genus endemic to the Brazilian Atlantic Forest and characterized by the bright yellow-orange aposematic colors and the high degree of miniaturization. Herein, we describe a new species of Brachycephalus from Serra do Brigadeiro, Municipality of Ervália, Minas Gerais State, southeastern Brazil. Specimens were collected at high altitudes (i.e., 1266-1498 m above sea level) amidst the leaf litter. The new species is characterized by the presence of black connective tissue covering all dorsal muscles, body completely yellow-orange in life, presence of skull and post-cranial plates, large size (SVL of adults: 14...
May 1, 2017: Zootaxa
https://www.readbyqxmd.com/read/28606622/reconstruction-of-combined-thumb-amputation-at-the-metacarpal-base-level-and-index-amputation-at-the-metacarpal-level-with-pollicization-and-bilateral-double-toe-composite-transfer
#9
Zhenglin Chi, Da Jiang Song, Lin Tian, Fu Hua Hu, Xiao Fang Shen, Harvey Chim
BACKGROUND: This study aimed to describe the technique and report our experience with the reconstruction of combined proximal thumb amputations at the metacarpal base level and index finger amputation at the metacarpal level with pollicization and bilateral double toe composite transfer. METHODS: The technique consists of pollicization of the remnant index ray. Then a contralateral composite medial great toe pulp and vascularized second toe proximal interphalangeal joint flap are harvested to reconstruct the metacarpophalangeal joint of the thumb...
May 20, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28601513/a-biomechanical-comparison-of-distal-fixation-for-bridge-plating-in-a-distal-radius-fracture-model
#10
Ram K Alluri, Sofia Bougioukli, Milan Stevanovic, Alidad Ghiassi
PURPOSE: To compare the biomechanical properties of second versus third metacarpal distal fixation when using a radiocarpal spanning distraction plate in an unstable distal radius fracture model. METHODS: Biomechanical evaluation of the radiocarpal spanning distraction plate comparing second versus third metacarpal distal fixation was performed using a standardized model of an unstable wrist fracture in 10 matched-pair cadaveric specimens. Each fixation construct underwent a controlled cyclic loading protocol in flexion and extension...
June 7, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28594520/pediatric-metacarpal-fractures
#11
Jenna Godfrey, Roger Cornwall
Metacarpal fractures account for 10% to 35% of all pediatric hand fractures. Pediatric metacarpal fractures commonly occur in patients aged 13 to 16 years, with most injuries sustained during sports activities. Pseudoepiphyses can be confused with metacarpal fractures; however, a careful physical examination can help physicians distinguish the two. Thumb metacarpal base fractures that involve the physis warrant special attention. Thumb metacarpal base fractures with lateral metaphyseal fragments and pediatric Bennett fracture variants (Salter-Harris type III and type IV fractures) are unstable and require surgical management...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28587371/outcome-of-antegrade-intramedullary-fixation-for-juvenile-fifth-metacarpal-neck-fracture-with-titanium-elastic-nail
#12
Kaiying Shen, Yunlan Xu, Dan Cao, Zhigang Wang, Haiqing Cai
The purpose of the current study was to assess the outcome of antegrade intramedullary fixation with titanium elastic nail (TEN) in displaced fifth metacarpal neck fractures. The present study included 69 consecutive juvenile patients with displaced fifth metacarpal fractures. The head-shaft angle of the fifth metacarpal and range of motion (ROM) of the metacarpophalangeal (MCP) joint were evaluated. A disabilities of the arm, shoulder and hand (DASH) questionnaire was used to assess upper arm function. The head-shaft angle of the affected side was significantly improved postoperatively (P<0...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28587322/novel-variant-in-the-fgd1-gene-causing-aarskog-scott-syndrome
#13
Yihua Ge, Niu Li, Zhigang Wang, Jian Wang, Haiqing Cai
Aarskog-Scott syndrome (ASS) is a rare, X-linked recessive inherited disorder. Affected individuals may develop short stature and exhibit distinctive skeletal and genital development. Mutations in the FYVE, rhogef and pleckstrin homology domain-containing protein 1 (FGD1) gene, located within the Xp11.21 region, are responsible for the occurrence of ASS. Since it is rare and complex, it can take a long time to obtain a definitive clinical diagnosis unless clinicians are familiar with the disease. In the present study, whole-exome sequencing (WES) was performed to screen for causal variants in a Chinese pediatric patient who exhibited a number of clinical symptoms of ASS, including short stature, facial abnormalities, stubby metacarpals and swollen testis...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28581022/a-multi-method-assessment-of-bone-maintenance-and-loss-in-an-imperial-roman-population-implications-for-future-studies-of-age-related-bone-loss-in-the-past
#14
Patrick Beauchesne, Sabrina C Agarwal
OBJECTIVES: One of the hallmarks of contemporary osteoporosis and bone loss is dramatically higher prevalence of loss and fragility in females post-menopause. In contrast, bioarchaeological studies of bone loss have found a greater diversity of age- and sex-related patterns of bone loss in past populations. We argue that the differing findings may relate to the fact that most studies use only a single methodology to quantify bone loss and do not account for the heterogeneity and complexity of bone maintenance across the skeleton and over the life course...
June 5, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28577350/treatment-of-fifth-metacarpal-neck-fractures-with-antegrade-single-elastic-intramedullary-nailing
#15
Yuanshi She, Youjia Xu
BACKGROUND: The aim of this study was to investigate clinical outcomes of fifth metacarpal neck fractures using antegrade single elastic nail and to explore ideal puncture point to avoid iatrogenic ulnar nerve injury. METHODS: A single elastic nail with suitable diameter was used in 27 cases of fifth metacarpal neck fractures with dorsal angulation over 45°. An initial entry point was perforated at the ulnar-dorsal base of the metacarpal. The nail was inserted in an antegrade approach...
June 2, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28573720/assessment-of-deep-dynamic-mechanical-sensitivity-in-individuals-with-tension-type-headache-the-dynamic-pressure-algometry
#16
M Palacios-Ceña, K Wang, M Castaldo, Á Guerrero-Peral, A B Caminero, C Fernández-de-Las-Peñas, L Arendt-Nielsen
BACKGROUND: To explore the validity of dynamic pressure algometry for evaluating deep dynamic mechanical sensitivity by assessing its association with headache features and widespread pressure sensitivity in tension-type headache (TTH). METHODS: One hundred and eighty-eight subjects with TTH (70% women) participated. Deep dynamic sensitivity was assessed with a dynamic pressure algometry set (Aalborg University, Denmark(©) ) consisting of 11 different rollers including fixed levels from 500 g to 5300 g...
June 2, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28573556/the-influence-of-bone-loss-on-the-three-adult-age-markers-of-the-innominate
#17
Carme Rissech, Jo Appleby, Alessandra Cosso, Francisco Reina, Anna Carrera, Richard Thomas
To evaluate the influence of bone loss on the three adult age markers of the innominate, 30 males and 30 females aged between 16 and 80 years coming from the British Coventry collection were analyzed. The pubic symphysis, auricular surface, and acetabulum age variables were evaluated following the descriptions of Schmitt, Buckberry-Chamberlain, and Rissech, respectively. The second metacarpal cortical index was used to evaluate bone loss. Possible sexual differences in metrical variables were explored by a Student t-test taking into account the entire sample...
June 1, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28551317/elastic-retrograde-intramedullary-percutaneous-pinning-for-fifth-metacarpal-neck-fractures-a-series-of-32-patients
#18
M-A Poumellec, N Dreant
The aim of our study was to evaluate an original surgical technique for the treatment of fifth metacarpal neck fractures: elastic retrograde intramedullary percutaneous pinning (ERIPP). From January 2014 to January 2016, patients with a fifth metacarpal neck fracture with greater than 30° volar displacement and/or clinodactyly were included. All patients underwent an ERIPP procedure. With this technique, K-wires are used as joysticks to assist reduction when the Jahss maneuver is insufficient. Clinical evaluation incorporated the DASH score, range of motion and grip strength at 3months...
May 24, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28549894/diagnosis-and-management-of-dermatofibrosarcoma-protuberans-in-a%C3%A2-3-year-old-patient
#19
Rajiv Iyengar, Elizabeth Kiwanuka, Shamlal Mangray, Antonio P Cruz, Julia Katarincic, Reena Bhatt
In this case report, we present a 3-year-old boy with a diagnosis of dermatofibrosarcoma protuberans (DFSP) on the dorsum of his right hand. Although rarely metastatic, DFSP is highly locally invasive and can cause considerable local morbidity. In the hand, DFSP is uncommon in the young pediatric patient. In our patient, the tumor extended down to the second and third metacarpal heads and was treated with a multistaged excision of his tumor to achieve negative margins under slow Mohs micrographic surgery.
May 24, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28548290/metacarpal-growth-during-adolescence-in-a-longitudinal-south-african-cohort
#20
A Magan, L H Nyati, L K Micklesfield, S A Norris, J M Pettifor
To monitor the drift of the periosteal and endocortical surfaces during metacarpal growth longitudinally, radiogrammetry was carried out on hand-wrist x-rays of 572 children from the Birth to Twenty Bone Health Cohort annually from ages 9-21 years. This is the largest collection of longitudinal x-rays in African children. The 2(nd) metacarpal bone length, bone width and medullary width were measured using digital vernier callipers on a total of 4730 x-rays. Superimposition by Translation and Rotation (SITAR) was used to obtain age at peak metacarpal length velocity (PLV)...
May 26, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
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