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https://www.readbyqxmd.com/read/29029863/changes-in-local-bone-density-in-early-thumb-carpometacarpal-joint-osteoarthritis
#1
Joseph J Schreiber, Thomas J McQuillan, Eni Halilaj, Joseph J Crisco, Arnold-Peter Weiss, Tarpit Patel, Deborah Kenney, Amy L Ladd
PURPOSE: Thumb carpometacarpal (CMC) osteoarthritis (OA) represents a major source of functional morbidity. The effects of early CMC OA on loading and use patterns potentially lead to changes in local bone density and microarchitecture. Hounsfield units (HU), a quantitative attenuation coefficient obtained from computed tomography (CT) scans, have been shown to be a reliable marker of bone density. We hypothesized that early CMC OA is associated with lower local bone density about the CMC joint as assessed by HU...
October 10, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29025041/trigger-points-pressure-pain-hyperalgesia-and-mechanosensitivity-of-neural-tissue-in-women-with-chronic-pelvic-pain
#2
Pedro Fuentes-Márquez, Marie Carmen Valenza, Irene Cabrera-Martos, Ana Ríos-Sánchez, Olga Ocón-Hernández
Objectives: This study aims to evaluate the presence of myofascial trigger points (TrPs), widespread pressure pain sensitivity, and mechanosensitivity of neural tissue in women with chronic pelvic pain. Design: Case-control study. Setting: Faculty of Health Sciences. Subjects: Forty women with chronic pelvic pain between age 18 and 60 years and 40 matched healthy controls were included in the study. Methods: TrPs were bilaterally explored in gluteus maximus, gluteus medius, gluteus minimus, quadratus lumborum, and adductor magnus muscles...
August 25, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29020872/paediatric-tuberculous-osteomyelitis-of-the-thumb-metacarpal-bone
#3
Nawal El Houmami, Pierre-Edouard Fournier, Wing-Yuk Ip
No abstract text is available yet for this article.
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28990681/limb-shortening-as-a-strategy-for-limb-sparing-treatment-of-appendicular-osteosarcoma-of-the-distal-radius-in-a-dog
#4
Sarah E Boston, Owen T Skinner
OBJECTIVE: To develop and report a novel limb sparing technique for the distal radius in a dog. STUDY DESIGN: Case report. ANIMAL: A 14-year-old, female spayed Labrador Retriever with an osteosarcoma of the right distal radius and a pathological fracture. A previous mast cell tumor had been treated 5 years prior to presentation with marginal excision and a full-course radiation over the right metacarpal bones. The dog had received 2 doses of palliative radiation just prior to presentation...
October 9, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28980482/the-utility-of-plain-films-for-nonoperative-fifth-metacarpal-fractures-are-follow-up-radiographs-necessary
#5
Nathanael Heckmann, Marie N Dusch, William C Pannell, Michael Bauschard, Ram K Alluri, Lakshmanan Sivasundaram, Alidad Ghiassi
BACKGROUND: Fifth metacarpal fractures are often treated nonoperatively with serial radiographs; however, the utility of these radiographs in altering clinical management has not been investigated. We hypothesize that follow-up plain films will not alter clinical management and are therefore unnecessary for most patients. METHODS: Between 2007 and 2014, patients with a fifth metacarpal fracture at our level I trauma center were retrospectively reviewed. Patients with inadequate documentation or imaging, ipsilateral upper extremity injuries, or who underwent initial surgical fixation were excluded...
October 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28979606/volar-dislocation-of-second-third-and-fourth-carpometacarpal-joints-in-association-with-a-bennet-s-fracture-of-the-thumb-carpo-metacarpal-dislocation-a-case-report
#6
Pierluigi Di Felice Ardente, Joan Camí Biayna, Jordi Saus Sarrias, Antoni Nuñez Muñoz, Guillem Figueras Coll, Patricio Vergara
Injuries of the carpometacarpal joints of the long fingers are infrequent and go often unnoticed if a thorough clinical exploration and complete radiological assessment is not carried out. The overall frequency of carpometacarpal joints injuries is of 1-2% among trauma of the wrist and the carpus. These are normally secondary to high energy trauma (such as a car or a motorbike accidents). Among these kinds of injuries, the volar dislocation of the metacarpals is much less frequent than the dorsal dislocation, being even rarer the cases in which the three middle metacarpals are involved...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28970518/three-screw-versus-two-screw-fixation-of-distal-fragment-in-fifth-metacarpal-neck-fractures-stabilized-with-locking-plate
#7
Hongyi Zhu, Bingbo Bao, Xianyou Zheng
Fifth metacarpal neck fracture commonly requires open reduction and internal fixation. Locking plate was widely adopted in the treatment of fifth metacarpal neck fracture as first-line choice for fixation. Patients with fifth metacarpal neck fracture receiving locking plate fixation were included for analysis. Features of internal fixation including number of distal and proximal locking screws, diameter of the screws and usage of lag screws were recorded. Clinical and radiographic outcomes included final volar angulation, grip strength, Michigan Hand Outcomes Questionnaire (MHQ) and range of motion (ROM) of fifth metacarpophalangeal joint...
October 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28963156/early-unprotected-return-to-contact-sport-after-metacarpal-fixation-in-professional-athletes
#8
M A Yalizis, E T H Ek, H Anderson, G Couzens, G A Hoy
AIMS: To determine whether an early return to sport in professional Australian Rules Football players after fixation of a non-thumb metacarpal fracture was safe and effective. PATIENTS AND METHODS: A total of 16 patients with a mean age of 25 years (19 to 30) identified as having a non-thumb metacarpal fracture underwent open reduction and internal plate and screw fixation. We compared the players' professional performance statistics before and after the injury to determine whether there was any deterioration in their post-operative performance...
October 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28955163/anesthetic-management-with-sevoflurane-combined-with-alfaxalone-medetomidine-constant-rate-infusion-in-a-thoroughbred-racehorse-undergoing-a-long-time-orthopedic-surgery
#9
Ai Wakuno, Tatsuya Maeda, Kazumichi Kodaira, Takuya Kikuchi, Minoru Ohta
A three-year old Thoroughbred racehorse was anesthetized with sevoflurane and oxygen inhalation anesthesia combined with constant rate infusion (CRI) of alfaxalone-medetomidine for internal fixation of a third metacarpal bone fracture. After premedication with intravenous (IV) injections of medetomidine (6.0 µg/kg IV), butorphanol (25 µg/kg IV), and midazolam (20 µg/kg IV), anesthesia was induced with 5% guaifenesin (500 ml/head IV) followed immediately by alfaxalone (1.0 mg/kg IV). Anesthesia was maintained with sevoflurane and CRIs of alfaxalone (1...
2017: Journal of Equine Science
https://www.readbyqxmd.com/read/28955160/signal-changes-in-standing-magnetic-resonance-imaging-of-osseous-injury-at-the-origin-of-the-suspensory-ligament-in-four-thoroughbred-racehorses-under-tiludronic-acid-treatment
#10
Fumiaki Mizobe, Motoi Nomura, Tomohiro Kato, Yasuo Nambo, Kazutaka Yamada
Problems associated with the proximal metacarpal region, such as an osseous injury associated with tearing of Sharpey's fibers or an avulsion fracture of the origin of the suspensory ligament (OISL), are important causes of lameness in racehorses. In the present study, four Thoroughbred racehorses (age range, 2-4 years) were diagnosed as having forelimb OISL and assessed over time by using standing magnetic resonance imaging (sMRI). At the first sMRI examination, all horses had 3 characteristic findings, including low signal intensity within the trabecular bone of the third metacarpus on T1-weighted images, intermediate-to-high signal intensity surrounded by a hypointense rim on T2*-weighted images, and high signal intensity on fat-suppressed images...
2017: Journal of Equine Science
https://www.readbyqxmd.com/read/28953580/relapsing-polychondritis-with-increased-bone-marrow-signal-on-magnetic-resonance-imaging-in-a-13-year-old-girl
#11
Kanako Nakayama, Masafumi Yamada, Yusuke Tozawa, Yuji Nakamaru, Masahiro Ueki, Shunichiro Takezaki, Hiroki Nishimura, Tomoko Mitsuhashi, Noriko Oyama-Manabe, Keita Sakamoto, Ryuta Arai, Sayaka Yamamoto, Kimiaki Uetake, Tadashi Ariga
Relapsing polychondritis (RPC) is an inflammatory disorder predominantly affecting cartilaginous structures including ears, nose, joints, and respiratory tracts. Although RPC is rare in children, previous reports indicated childhood RPC is atypical or severe. A 13-year-old girl presented with redness and swelling of the bilateral auricles and subsequently developed arthralgia of multiple joints. Histopathologic findings of the auricular cartilages were compatible with RPC. Magnetic resonance imaging (MRI) for the evaluation of arthralgia unexpectedly demonstrated increased bone marrow signal of metacarpals and the distal epiphysis of radii and ulnae...
September 26, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28950013/the-toothless-pterosaur-jidapterus-edentus-pterodactyloidea-azhdarchoidea-from-the-early-cretaceous-jehol-biota-and-its-paleoecological-implications
#12
Wen-Hao Wu, Chang-Fu Zhou, Brian Andres
BACKGROUND: In the Early Cretaceous Jehol Biota, the toothless pterosaurs flourished with the chaoyangopterids and tapejarids playing a key role in understanding the early diversity and evolution of the Azhdarchoidea. Unlike the more diverse tapejarids, the rarer chaoyangopterids are characterized by a long and low rostrum, supporting a close relationship with the huge azhdarchids. Unfortunately, our knowledge is still limited in the osteology, paleoecology, and taxonomy of the Chaoyangopteridae...
2017: PloS One
https://www.readbyqxmd.com/read/28945129/histologic-and-immunohistochemical-evaluation-of-biocompatibility-of-castor-oil-polyurethane-polymer-with-calcium-carbonate-in-equine-bone-tissue
#13
Fernanda S Nóbrega, Mariana B Selim, Victor E Arana-Chavez, Luciana Correa, Márcio P Ferreira, André L V Zoppa
OBJECTIVE To evaluate the efficacy of castor oil polyurethane polymer with calcium carbonate for use in a unicortical ostectomy on the dorsal surface of the third metacarpal bone of horses. ANIMALS 6 adult horses. PROCEDURES A unicortical ostectomy was created on the dorsal surface of both third metacarpal bones of each horse. Castor bean (Ricinus communis) oil polyurethane polymer with calcium carbonate was implanted into the ostectomy on 1 limb, and the ostectomy of the contralateral limb was left unfilled and served as a control sample...
October 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28945124/comparison-of-insertion-characteristics-of-tapered-and-cylindrical-transfixation-pins-in-third-metacarpal-bones-of-equine-cadavers
#14
Mackenzie K Adams, Timothy B Lescun, Alexis S Mechem, Whitney R Johnson, T Hall Griffin, Russell P Main
OBJECTIVE To compare heat generation and mechanical bone damage for tapered and cylindrical transfixation pins during drilling, tapping, and pin insertion in equine third metacarpal bones. SAMPLE 16 pairs of cadaveric equine third metacarpal bones. PROCEDURES For cylindrical pin insertion, a 6.2-mm hole was drilled and tapped with a cylindrical tap, and then a standard 6.3-mm pin was inserted. For tapered pin insertion, a 6.0-mm hole was drilled, reamed with a tapered reamer, and tapped with a tapered tap, and then a 6...
October 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28940635/assessing-bone-development-in-preterm-infants-using-quantitative-ultrasonography-showed-a-decline-in-the-early-postnatal-period
#15
Marieke Krikke, Dana Yumani, Christine Rustenburg, Anneke Cranendonk, Jos Twisk, Harrie Lafeber, Mirjam van Weissenbruch
AIM: Preterm infants have an insufficient bone mineral store at birth and this study explored their bone development during the early postnatal period. METHODS: The metacarpal speed of sound (mcSOS) and metarcarpal bone transmission time (mcBTT) were used to assess bone development in 277 preterm infants, admitted to the neonatal intensive care unit of the VU University Medical Center, Amsterdam, the Netherlands from 2007-2012. RESULTS: During the first nine postnatal weeks the mcSOS declined from 10-38 meters per second per week and the mcBTT declined from 20 to 71 nanoseconds per week...
September 22, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28934632/in-vivo-biomechanical-behavior-of-the-trapeziometacarpal-joint-in-healthy-and-osteoarthritic-subjects
#16
Priscilla D'Agostino, Benjamin Dourthe, Faes Kerkhof, G Harry Van Lenthe, Filip Stockmans, Evie E Vereecke
BACKGROUND: The contact biomechanics of the trapeziometacarpal joint have been investigated in several studies. However, these led to conflicting results and were mostly performed in vitro. The purpose of this study was to provide further insight on the contact biomechanics of the trapeziometacarpal joint by in vivo assessment of healthy and osteoarthritic subjects. METHODS: The hands of 16 healthy women and 6 women with trapeziometacarpal osteoarthritis were scanned in positions of maximal thumb extension, flexion, abduction and adduction during three isometric tasks (lateral key pinch, power grasp and jar twist) and in thumb rest posture (relaxed neutral)...
September 12, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28933803/unusual-ending-of-the-second-dorsal-metacarpal-artery-as-proper-palmar-digital-arteries
#17
Homero F Bianchi, Claudia A Vargas, Nicolas E Ottone
BACKGROUND: The proper palmar digital arteries arises infrequently from dorsal metacarpal arteries. This work reports the second dorsal metacarpal artery unusual ending and a vascular variation related to the superficial palmar arch. MATERIALS AND METHODS: Fresh human upper limbs routine dissection, from a male cadaver, injected with colored elastomeric material immersed 10% formalin. RESULTS: The second dorsal metacarpal artery presented terminal branches, the index finger medial proper digital palmar artery and the middle finger lateral proper digital palmar artery...
September 21, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28933198/iatrogenic-injuries-in-percutaneous-pinning-techniques-for-fifth-metacarpal-neck-fractures
#18
Sheriff D Akinleye, Garret Garofolo-Gonzalez, Maya Deza Culbertson, Jack Choueka
BACKGROUND: There is little information regarding anatomic structures at risk during closed percutaneous treatment of fifth metacarpal neck fractures. This study evaluates a variety of common percutaneous techniques with the hypothesis that each approach presents unique risks to tendons and neurovascular structures. METHODS: Seven cadaveric hands were used for this study. The senior author, a board-certified hand surgeon with more than 20 years of experience, used a mini-C arm to pass 1...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28933187/headless-screw-fixation-of-metacarpal-neck-fractures-a-mechanical-comparative-analysis
#19
Christopher M Jones, Eric M Padegimas, Nicole Weikert, Samuel Greulich, Asif M Ilyas, Sorin Siegler
BACKGROUND: The purpose of this study was to compare the mechanical properties of metacarpal neck fracture fixation by headless compression screw (HCS) with that of Kirschner wire (KW) cross-pinning and locking plate (LP) fixation. METHODS: A metacarpal neck fracture was created in 30 fourth-generation composite Sawbones metacarpal models. A volar-based wedge was removed using a custom jig to simulate a typical apex dorsal fracture, unstable in flexion. The models were divided into 3 equal groups based on the method of fixation: retrograde cross-pinning with two 1...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28922325/metacarpal-like-hand-classification-and-treatment-guidelines-for-microsurgical-reconstruction-with-toe-transplantation
#20
Fu-Chan Wei, Nidal F Al Deek, Yu-Te Lin, Chung-Chen Hsu, Cheng-Hung Lin
The metacarpal-like hand is a severe hand injury, never addressed before. It describes a hand that lost a significant degree of prehension through a wide array of amputations, involving all digits proximal to the functional length except in one finger or in two digits, including the thumb.Thumb condition can be used to differentiate between two types.In type I, the thumb is intact or amputated at/or distal to the interphalangeal joint (functional length); and therefore, the reconstruction is focused on fingers mainly...
September 14, 2017: Plastic and Reconstructive Surgery
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