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https://www.readbyqxmd.com/read/28549780/patient-specific-pointer-tool-for-corrective-osteotomy-quality-of-symmetry-based-planning-and-case-study-of-ulnar-reconstruction-surgery
#1
Samuel Mueller, Lueder A Kahrs, Johannes Gaa, Tobias Ortmaier, Jan-Dierk Clausen, Christian Krettek
Malunion after forearm fractures are described to appear in 2% to 10% of cases. Reconstructive surgeries ensure adequate anatomical repositioning. Their importance derives from the fact that malunion can often lead to severe pain as well as deformities causing loss of function and aesthetic issues not only in the forearm, but also the wrist and elbow joint. In this paper a clinical case will be presented using a Patient Specific Instrument (PSI) as navigational aid for reconstructive surgery after malunion of a proximal ulnar fracture combined with allograft surgery of the radial head and radial condyle due to chronic traumatic radial head luxation (Monteggia fracture)...
May 11, 2017: Injury
https://www.readbyqxmd.com/read/28549397/assessment-of-distal-radioulnar-joint-stability-after-reconstruction-with-the-brachioradialis-wrap
#2
Charity S Burke, Keith A Zoeller, Seid W Waddell, John A Nyland, Michael J Voor, Amitava Gupta
BACKGROUND: The brachioradialis (BR) wrap technique is an option to restore the stability of the distal radioulnar joint (DRUJ). The technique capitalizes on the BR's advantageous insertion point on the radial styloid and the ability of the BR to be harvested with minimal to no deficit. The tendon can then be wrapped around the radius and ulna, tunneling under the pronator quadratus and extensor compartments and secured back into its insertion to provide stability. In this cadaveric study, we used micro-computed tomography (CT) to assess the stability restored by this procedure...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28547674/diagnostic-accuracy-of-various-modalities-relative-to-open-bone-biopsy-for-detection-of-long-bone-posttraumatic-osteomyelitis
#3
Vivek Chadayammuri, Benoit Herbert, Jiandong Hao, Andreas Mavrogenis, Juan C Quispe, Ji Wan Kim, Heather Young, Mark Hake, Cyril Mauffrey
BACKGROUND: Long bone posttraumatic osteomyelitis (PTOM) is a relatively common complication following surgical fixation of open fractures. There is a lacking consensus on ideal strategies for diagnostic evaluation of long bone PTOM. While open bone biopsy and culture is considered the 'gold diagnostic standard,' its cost and invasiveness are often prohibitive and have prompted the search for alternate diagnostic methods. OBJECTIVE: To evaluate the sensitivity and specificity of various diagnostic modalities relative to open bone biopsy and culture for the detection of long bone PTOM...
May 25, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28544807/effects-of-teriparatide-on-joint-erosions-in-rheumatoid-arthritis-a-randomized-controlled-trial
#4
D H Solomon, J Kay, J Duryea, B Lu, M B Bolster, R A Yood, R Han, S Ball, C Coleman, E Lo, A Wohlfahrt, M Sury, M Yin, Z Yu, A Zak, E M Gravallese
BACKGROUND: Articular erosions correlate with disability in rheumatoid arthritis (RA). Biologic treatments for RA reduce erosion progression, but erosion healing occurs infrequently. The goal of this study was to assess the effects of the anabolic agent teriparatide on joint erosion volume in RA patients treated with a tumor necrosis factor inhibitor (TNFi). METHODS: We conducted a randomized controlled trial in 24 patients with erosive RA, osteopenia, and disease activity controlled on a TNFi for at least three months...
May 23, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28540998/impact-of-open-reduction-on-surgical-strategies-for-missed-monteggia-fracture-in-children
#5
Hoon Park, Kwang Won Park, Kun Bo Park, Hyun Woo Kim, Nam Kyu Eom, Dong Hoon Lee
PURPOSE: The aims of this study were to review our cases of missed Monteggia fracture treated by open reduction of the radial head with or without ulnar osteotomy and to investigate the indications for open reduction alone in surgical treatment of missed Monteggia fracture. MATERIALS AND METHODS: We retrospectively reviewed 22 patients who presented with missed Monteggia fracture. The patients' mean age at the time of surgery was 7.6 years. The mean interval from injury to surgery was 16...
July 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28530778/a-comparison-of-the-treatment-results-of-dpen-reduction-internal-fixation-and-intramedullary-nailing-in-adult-forearm-diaphyseal-fractures
#6
Ahmet Köse, Ali Aydın, Naci Ezirmik, Ömer Selim Yıldırım
BACKGROUND: We compared the union and functional results of intramedullary nailing and open reduction internal fixation treatment applied to adults with a forearm diaphysis fracture (fracture of the radius and/or ulna). METHODS: We retrospectively examined 90 patients with completed skeletal maturation who were surgically treated for a forearm diaphyseal fracture. Patients with a Monteggia Galeazzi and ipsilateral upper extremity fracture and those with an open epiphyseal line, Type 3 open fracture, pathological fracture, or brain trauma were excluded from the study...
May 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28522258/high-resolution-3%C3%A2-t-mri-of-traumatic-and-degenerative-triangular-fibrocartilage-complex-tfcc-abnormalities-using-palmer-and-outerbridge-classifications
#7
T Nozaki, G Rafijah, L Yang, T Ueno, S Horiuchi, D Hitt, H Yoshioka
AIM: To investigate the usefulness of high-resolution 3 T magnetic resonance imaging (MRI) for the evaluation of traumatic and degenerative triangular fibrocartilage complex (TFCC) abnormalities among three groups: patients presenting with wrist pain who were (a) younger than age 50 years or (b) age 50 or older (PT<50 and PT≥50, respectively), and (c) asymptomatic controls who were younger than age 50 years (AC). MATERIALS AND METHODS: High-resolution 3 T MRI was evaluated retrospectively in 96 patients, including 47 PT<50, 38 PT≥50, and 11 AC...
May 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28520680/acute-pediatric-monteggia-fractures-a-conservative-approach-to-stabilization
#8
Ian Foran, Vidyadhar V Upasani, Charles D Wallace, Elise Britt, Tracey P Bastrom, James D Bomar, Andrew T Pennock
BACKGROUND: In 2015, a multicenter study group proposed a treatment algorithm for pediatric Monteggia fractures based upon the ulnar fracture pattern. This strategy recommends surgical stabilization for all complete ulna fractures. The purpose of this study was to evaluate whether an initial nonoperative approach to pediatric Monteggia fractures resulted in poorer outcomes and a higher rate of complications. METHODS: This institutional review board approved retrospective study evaluated all Monteggia fractures presenting to a level 1 pediatric trauma center between 2008 and 2014...
May 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28516005/caffey-s-disease-sans-mandibular-and-clavicular-involvement-a-rare-case-report
#9
Sachin Khanduri, Gaurav Katyal, Aakshit Goyal, Shreshtha Jain, Tushar Sabharwal, Mriganki Chaudhary
Caffey's disease, also known as Infantile Cortical Hyperostosis, is a rare, self-limited, benign, inflammatory gene-related disorder of infants that causes bone changes, soft tissue swelling, and irritability. The mandible (75%), clavicles, and ulnae are the bones most frequently involved, others being long bones, lateral ribs, ilia with skull being the rarest. However, we report a case of a 5-month-old male diagnosed with Infantile cortical hyperostosis but with absent mandibular and clavicular involvement, thus depicting the unusual presentation of this disease...
April 16, 2017: Curēus
https://www.readbyqxmd.com/read/28507853/ulnar-head-reconstruction-with-microvascular-second-metatarsal
#10
Pedro C Cavadas, Alessandro Thione
BACKGROUND: The distal radioulnar joint along with the interosseous ligament of the forearm and the proximal radioulnar joint, form a functionally integrated system responsible for the pronation-supination of the hand. The distal ulna, the so-called ulnar head, is an integral part of this system. Apart from its well-known role in forearm rotation, the ulnar head is essential in transverse load transmission through the distal radioulnar joint upon resisted elbow flexion. Autologous reconstruction of ulnar head would theoretically be beneficial with respect to prostheses...
April 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28506178/galeazzi-equivalent-fractures-report-of-two-cases-and-literature-review
#11
Seigo Suganuma, Kaoru Tada, Daiki Yamamoto, Hiroyuki Tsuchiya
The Galeazzi-equivalent fracture is a rare injury that occurs in children. The most important issue is the distal ulnar epiphyseal injury. Although there have been some case reports, most of them performed only short term follow-up. This article describes two cases of this fracture with long term follow-up until epiphyseal closure. First case is a 12-year-old girl who sustained a Galeazziequivalent fracture of her right forearm and underwent emergency surgery. At follow-up of 5 years and 10 months postsurgery, radiographs show ulnar growth arrest of one mm and she has mild pain...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28506164/screw-fixation-and-autogenous-bone-graft-for-an-irreducible-distal-ulna-fracture-associated-with-distal-radius-fracture
#12
Kiyohito Naito, Yoichi Sugiyama, Hiroyuki Obata, Atsuhiko Mogami, Osamu Obayashi, Kazuo Kaneko
Distal ulna fractures often occur with distal radius fractures, and their treatment method is still controversial. We considered reduction of the distal radio-ulnar joint (DRUJ) surface the most important factor when treating distal ulna fractures accompanied by residual dislocation. We herein presented a patient with a distal ulna fracture accompanied by dislocation of the DRUJ surface in whom an autogenous bone fragment collected from the radius was grafted onto the ulnar bone defect after open reduction and Herbert screw fixation...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28504423/genetic-vulnerabilities-to-prenatal-alcohol-exposure-limb-defects-in-sonic-hedgehog-and-gli2-heterozygous-mice
#13
Eric W Fish, Laura B Murdaugh, Kathleen K Sulik, Kevin P Williams, Scott E Parnell
BACKGROUND: Genetic factors influence the physical and neurobehavioral manifestations of prenatal alcohol exposure (PAE). Animal models allow the investigation of specific genes that confer vulnerability to, or protection from, birth defects associated with fetal alcohol spectrum disorders (FASDs). The objective of the present experiments was to determine if genetic alterations in the Sonic Hedgehog (Shh) signaling pathways affect the vulnerability to PAE-induced skeletal defects involving the forelimbs and/or hindlimbs...
May 15, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28503939/clarification-of-eponymous-anatomical-terminology-structures-named-after-dr-geoffrey-v-osborne-that-compress-the-ulnar-nerve-at-the-elbow
#14
Arvin R Wali, Brandon Gabel, Madhawi Mitwalli, R Shane Tubbs, Justin M Brown
BACKGROUND: In 1957, Dr Geoffrey Osborne described a structure between the medial epicondyle and the olecranon that placed excessive pressure on the ulnar nerve. Three terms associated with such structures have emerged: Osborne's band, Osborne's ligament, and Osborne's fascia. As anatomical language moves away from eponymous terminology for descriptive, consistent nomenclature, we find discrepancies in the use of anatomic terms. This review clarifies the definitions of the above 3 terms...
May 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28500329/no-evidence-of-inbreeding-depression-in-a-tasmanian-devil-insurance-population-despite-significant-variation-in-inbreeding
#15
Rebecca Gooley, Carolyn J Hogg, Katherine Belov, Catherine E Grueber
Inbreeding depression occurs when inbred individuals experience reduced fitness as a result of reduced genome-wide heterozygosity. The Tasmanian devil faces extinction due to a contagious cancer, devil facial tumour disease (DFTD). An insurance metapopulation was established in 2006 to ensure the survival of the species and to be used as a source population for re-wilding and genetic rescue. The emergence of DFTD and the rapid decline of wild devil populations have rendered the species at risk of inbreeding depression...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28488475/ulnar-head-replacement-and-sigmoid-notch-resurfacing-arthroplasty-with-a-lateral-meniscal-allograft-calamari-procedure
#16
S Kakar, M Noureldin, B Elhassan
We report the outcomes of ulnar head replacement with concomitant resurfacing of the sigmoid notch with a lateral meniscal allograft that attempted to recreate the palmar and dorsal radioulnar ligaments in four patients. Patients' ranges of motion, grip strength, postoperative complications and radiographs were assessed. The mean follow-up was 20 (range 12-28) months. There was an increase in postoperative range of motion with an average increase in grip strength of 43% to the unaffected extremity. All patients experienced marked reduction in their postoperative pain...
February 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28479162/comparison-of-the-outcomes-between-headless-cannulated-screw-fixation-and-fixation-using-a-locking-compression-distal-ulna-hook-plate-in-fracture-of-fifth-metatarsal-base
#17
Jun-Beom Kim, In-Soo Song, Byeong-Seop Park, Chi-Hoon Ahn, Cheol-U Kim
The aim of the present study was to evaluate and compare the clinical and radiologic results of internal fixation with a headless cannulated screw versus a locking compression distal ulna hook plate for fractures at the base of the fifth metatarsal bone, zone 1. From April 2012 to April 2015, 30 cases (29 patients) were retrospectively evaluated. The mean follow-up period was 13 months. The patients were divided into 2 groups stratified by the fixation method: screw (group A, n = 15) or plate (group B, n = 15)...
May 4, 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28470721/hox11-function-is-required-for-region-specific-fracture-repair
#18
Danielle R Rux, Jane Y Song, Kyriel M Pineault, Gurjit S Mandair, Ilea T Swinehart, Aleesa J Schlientz, Kayla N Garthus, Steve A Goldstein, Ken M Kozloff, Deneen M Wellik
The processes that govern fracture repair rely on many mechanisms that recapitulate embryonic skeletal development. Hox genes are transcription factors that perform critical patterning functions in regional domains along the axial and limb skeleton during development. Much less is known about roles for these genes in the adult skeleton. We recently reported that Hox11 genes, which function in zeugopod development (radius/ulna and tibia/fibula), are also expressed in the adult zeugopod skeleton exclusively in PDGFRα + /CD51 + /LepR+ mesenchymal stem/stromal cells (MSCs)...
May 4, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28464752/the-accuracy-and-precision-of-radiostereometric-analysis-in-upper-limb-arthroplasty
#19
Bart Ten Brinke, Annechien Beumer, Koen L M Koenraadt, Denise Eygendaal, Gerald A Kraan, Nina M C Mathijssen
Background and purpose - Radiostereometric analysis (RSA) is an accurate method for measurement of early migration of implants. Since a relation has been shown between early migration and future loosening of total knee and hip prostheses, RSA plays an important role in the development and evaluation of prostheses. However, there have been few RSA studies of the upper limb, and the value of RSA of the upper limb is not yet clear. We therefore performed a systematic review to investigate the accuracy and precision of RSA of the upper limb...
June 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28464269/the-postcranial-skeletal-maturation-of-australopithecus-sediba
#20
Noel Cameron, Barry Bogin, Debra Bolter, Lee R Berger
OBJECTIVES: In 2008, an immature hominin defined as the holotype of the new species Australopithecus sediba was discovered at the 1.9 million year old Malapa site in South Africa. The specimen (MH1) includes substantial post-cranial skeletal material, and provides a unique opportunity to assess its skeletal maturation. METHODS: Skeletal maturity indicators observed on the proximal and distal humerus, proximal ulna, distal radius, third metacarpal, ilium and ischium, proximal femur and calcaneus were used to assess the maturity of each bone in comparison to references for modern humans and for wild chimpanzees (Pan troglodytes)...
May 2, 2017: American Journal of Physical Anthropology
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