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https://www.readbyqxmd.com/read/29773449/primary-bone-tumors-and-tumor-like-lesions-of-the-ulna
#1
Osman Emre Aycan, Sami Sökücü, Devrim Özer, Engin Çetinkaya, Yavuz Arıkan, Yavuz Selim Kabukçuoğlu
OBJECTIVE: The aim of this study was to discuss the diagnosis and surgical management and their results according to stage of primary bone tumors at ulna and to share our experience on this exceptional location for bone tumors. METHODS: We have retrospectively reviewed our clinics database and identified 23 cases (14 males and 9 females, mean age was 28.9 (range 4-77)) with primary bone tumors and tumor like lesion involvement of ulna. The patients were evaluated according to complaints, type and grade of tumor, treatment, recurrence and functional status...
May 14, 2018: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29736923/reconstruction-of-complex-tissue-defect-of-forearm-with-a-chimeric-flap-composed-of-a-sural-neurocutaneous-flap-and-a-vascularized-fibular-graft-a-case-report
#2
Chunyang Wang, Jia Xu, Gen Wen, Yimin Chai
One-stage reconstruction of composite bone and soft-tissue defects in the forearm remains a tough challenge. Here, we present a case of reconstruction of complex tissue defect at forearm with a chimeric flap consisting of a sural neurocutaneous flap and a fibular graft. A 61-year-old man suffered from a machine crush injury in his left forearm, resulting in a complex tissue defect including extensive dorsomedial soft-tissue, digit extensor muscles of 2-4 fingers, the muscle flexor carpi ulnaris, the ulna bone with 5...
May 7, 2018: Microsurgery
https://www.readbyqxmd.com/read/29728215/radial-distraction-to-stabilize-distal-radioulnar-joint-in-distal-radius-fixation
#3
REVIEW
Jung-Pan Wang, Hui-Kuang Huang, Duretti Fufa
Persistent distal radioulnar joint (DRUJ) instability after internal fixation of distal radius fractures can be managed with soft tissue or bony stabilization and prolonged immobilization. However, these strategies limit postoperative motion. To address this limitation, we report our technique of indirect ulna shortening by radial distraction followed by early mobilization and provide a case example. We use this technique in cases of persistent DRUJ instability during standard volar plating of distal radius fractures...
May 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29727895/in-vivo-axial-humero-ulnar-rotation-in-normal-and-dysplastic-canine-elbow-joints
#4
Thomas Rohwedder, Martin Fischer, Peter Böttcher
OBJECTIVE: To prospectively compare relative axial (internal-external) humero-ulnar rotation in normal and dysplastic canine elbow joints. MATERIAL AND METHODS: Six normal elbows (five dogs) and seven joints (six dogs) with coronoid disease were examined. After implantation of 0.8 mm tantalum beads into humerus and ulna, biplanar x-ray movies of the implanted elbows were taken while dogs were walking on a treadmill. Based on the 2D bead coordinates of the synchronized x-ray movies virtual 3D humero-ulnar animations were calculated...
April 2018: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/29727315/autopsy-features-of-fatal-donkey-attack
#5
Lajos Fogel, Gyula Varga, Marta Hubay, Endre Felszeghy, Peter Varga, Roger W Byard
Lethal donkey attacks have very rarely been described. The case of a 65-year-old man who was found deceased on a country road with 2 domestic donkeys nearby is, therefore, reported. Examination of the body revealed contusions and lacerations of the face and scalp, a comminuted fracture of the left maxilla, comminuted fracturing of the right radius and ulna and of the left anterior superior iliac spine, a flail chest, and pulmonary contusions. In addition, there were bite marks on the left thigh, right buttock, right axilla/upper arm, and left cheek which corresponded to the dental arcades of the donkeys...
May 2, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29713400/apss-asj-best-clinical-research-award-predictability-of-curve-progression-in-adolescent-idiopathic-scoliosis-using-the-distal-radius-and-ulna-classification
#6
Jason Pui Yin Cheung, Prudence Wing Hang Cheung, Dino Samartzis, Keith Dip-Kei Luk
Study Design: Prospective study. Purpose: To determine the risk of clinically significant curve progression in adolescent idiopathic scoliosis (AIS) based on the initial Cobb angle and to test the utility of the distal radius and ulna (DRU) classification in predicting these outcomes. Overview of Literature: Determining the remaining growth potential in AIS patients is necessary for predicting prognosis and initiating treatment. Limiting the maturity Cobb angle to <40° and <50° reduces the risk of adulthood progression and need for surgery, respectively...
April 2018: Asian Spine Journal
https://www.readbyqxmd.com/read/29685770/age-estimation-methods-using-hand-and-wrist-radiographs-in-a-group-of-contemporary-thais
#7
Sunpatch Benjavongkulchai, Pisha Pittayapat
OBJECTIVES: The aim of this study was to evaluate the accuracy and reliability of three commonly used age estimation methods in Thailand: Greulich-Pyle, Tanner-Whitehouse and Fishman. MATERIALS AND METHODS: Three hundred and sixty-five hand and wrist radiographs of 8-20 years old Thai patients were retrospectively collected. The radiographs were taken between 2011-2016. Greulich-Pyle, Tanner-Whitehouse 3 radius, ulna and selected short bones (RUS), and Fishman method were applied for each radiograph...
April 3, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29684620/in-vivo-quantification-of-hydrogen-gas-concentration-in-bone-marrow-surrounding-magnesium-fracture-fixation-hardware-using-an-electrochemical-hydrogen-gas-sensor
#8
Daoli Zhao, Andrew Brown, Tingting Wang, Sayuri Yoshizawa, Charles Sfeir, William R Heineman
Magnesium (Mg) medical devices are currently being marketed for orthopedic applications and have a complex degradation process which includes the evolution of hydrogen gas (H2 ). The effect of H2 exposure on relevant cell types has not been studied; and the concentration surrounding degrading Mg devices has not been quantified to enable such mechanistic studies. A simple and effective method to measure the concentration of H2 in varying microenvironments surrounding Mg implants is the first step to understanding the biological impact of H2 on these cells...
April 20, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29682313/systematic-assessment-of-the-growth-plates-of-the-wrist-in-young-gymnasts-development-and-validation-of-the-amsterdam-mri-assessment-of-the-physis-amphys-protocol
#9
Laura S Kox, Rik B J Kraan, Kees F van Dijke, Robert Hemke, Sjoerd Jens, Milko C de Jonge, Edwin H G Oei, Frank F Smithuis, Maaike P Terra, Mario Maas
Objectives: To develop and validate a protocol for MRI assessment of the distal radial and ulnar periphyseal area in gymnasts and non-gymnasts. Methods: Twenty-four gymnasts with wrist pain, 18 asymptomatic gymnasts and 24 non-gymnastic controls (33 girls) underwent MRI of the wrist on a 3T scanner. Sequences included coronal proton density-weighted images with and without fat saturation, and three-dimensional water-selective cartilage scan and T2 Dixon series. Skeletal age was determined using hand radiographs...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29675678/anthropometric-and-clinical-analysis-of-the-distal-ulna-and-extensor-carpi-ulnaris-tendon-using-mri
#10
Ugur Toprak, Sefa Turkoglu
OBJECTIVE: To investigate the ulnar groove (UG), extensor carpi ulnaris (ECU) tendon, and ulnar styloid process (USP) parameters in asymptomatic individuals without ulnar-sided wrist abnormalities, to determine whether these values can be anthropometric markers of age and gender and identify their correlations for use in clinical decision-making. MATERIALS AND METHODS: The MRI T1W axial, T2W sagittal, coronal PW and DESS sequences were evaluated in 100 cases (62 women)...
April 19, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29672435/outcomes-in-early-versus-late-presentation-of-focal-fibrocartilaginous-dysplasia-affecting-the-upper-extremity-a-review-of-4-cases
#11
Grigory Gershkovich, David Kahan, Scott Kozin, Daniel Zlotolow
BACKGROUND: Focal fibrocartilaginous dysplasia (FFCD) is a rare disorder of the upper and lower extremities. In the distal ulna, a ligamentous tether emerging from the metaphysis crosses the physis and restricts growth, leading to deformity. Lesion excision before radiocapitellar subluxation has been shown to restore growth and allow remodeling. We review the outcomes of 4 patients with FFCD of the distal ulna after the occurrence of radiocapitellar incongruity. METHODS: This retrospective review examined 4 patients diagnosed with FFCD of the distal ulna from 2007 to 2015...
April 18, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29650375/vascularized-distal-radius-bone-graft-for-treatment-of-ulnar-nonunion
#12
REVIEW
Ezequiel Ernesto Zaidenberg, Ezequiel Martinez, Carlos Rodolfo Zaidenberg
Various methods have been reported to treat forearm nonunions with good results. However, in the presence of infection, inadequate vascularity of surrounding tissues, or failed prior grafts, vascularized bone grafts are a valid alternative. We describe the surgical technique to obtain distal radius vascularized bone graft pedicled on the radial artery (RA) and its clinical application in 1 case of an ulnar nonunion. We studied the surgical technique in 12 freshly injected cadavers. In the distal forearm, the RA provides several periosteal branches to supply the distal radius metaphysis...
April 9, 2018: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29644283/plating-of-an-isolated-fracture-of-shaft-of-ulna-under-local-anaesthesia-and-periosteal-nerve-block
#13
Amir Adham Ahmad, Mohammad Arshad Ikram
Isolated fractures of shaft of ulna are common. Plate fixation with anatomic reduction is thought to produce the best functional results in closed or open fractures. Surgery can be done under general and various types of regional anaesthesia. We report a case of fracture shaft of ulna treated by plating under a combination of WALANT (wide awake, local anaesthesia, no tourniquet) using tumescent anaesthesia and periosteal nerve block as a day care procedure.
December 2017: Trauma Case Reports
https://www.readbyqxmd.com/read/29628706/does-operative-fixation-of-isolated-fractures-of-ulna-shaft-results-in-different-outcomes-than-non-operative-management-by-long-arm-cast
#14
Altaf Hussain, Sandeep Kumar Nema, Deep Sharma, Sujiv Akkilagunta, Gopisankar Balaji
Objective: The optimal treatment for isolated fractures of ulnar shaft is debatable. The purpose of this study was to compare functional outcomes and radiological union in patients treated for isolated fractures of the ulnar shaft by open reduction and internal fixation and a long arm cast. Methods: This prospective study was conducted at level I trauma center from November 2014 to March 2016. 30 patients with isolated fractures of ulnar shaft were randomized to two groups to receive treatment by open reduction and internal fixation by plates and screws and a long arm cast...
March 2018: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29619502/safe-zone-for-the-posterior-interosseous-nerve-with-regard-to-the-lateral-and-posterior-approaches-to-the-proximal-radius
#15
Gloria Maria Hohenberger, Angelika Maria Schwarz, Marco Johannes Maier, Peter Grechenig, Jan Dauwe, Christoph Grechenig, Renate Krassnig, Axel Gänsslen, Andreas Heinrich Weiglein
PURPOSE: The posterior interosseous nerve (PIN) is at risk during the posterior and lateral approaches to the proximal radius. We aimed to define a safe zone for these approaches to avoid injury of the PIN and to evaluate their close and changing relationship to the nerve during forearm rotation. METHODS: The study collective consisted of 50 upper limbs. After performance of the lateral approach, the distance between the tip of the radial head and the PIN's exit point from the supinator (= distance 1) and the shortest interval between the nerve's exit to the radial margin of the ulna (= distance 2) were measured in maximum pronation and supination...
April 4, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29615032/the-impact-of-varus-angulation-on-proximal-fractures-of-the-ulna
#16
Xuchao Shi, Tianlong Pan, Dengying Wu, Rong Chen, Zeng Lin, Jun Pan
BACKGROUND: We studied anteromedial varus angulation (VA) in the proximal third of the ulna. The importance of restoration of the anatomical orientation of the ulnar after a proximal fracture is unclear. The purpose of this study was to evaluate the impact of minimal proximal ulna malunion on elbow function after a proximal ulna fracture. METHODS: We reviewed the follow-up of 60 patients who had undergone open reduction with internal fixation (ORIF) of a proximal fracture of the ulna...
April 4, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29610971/no-neurovascular-damage-after-creation-of-an-accessory-anteromedial-portal-for-arthroscopic-reduction-and-fixation-of-coronoid-fractures
#17
Paolo Arrigoni, Davide Cucchi, Enrico Guerra, Francesco Luceri, Simone Nicoletti, Alessandra Menon, Pietro Randelli
PURPOSE: Arthroscopic reduction and internal fixation for coronoid process fractures has been proposed to overcome limitations of open approaches. Currently, arthroscopy is most frequently used to assist insertion of a retrograde guide wire for a retrograde cannulated screw. The present anatomical study presents an innovative arthroscopic technique to introduce an antegrade guide wire from an accessory anteromedial portal and evaluates its safety and reproducibility. METHODS: Six fresh-frozen cadaver specimens were obtained and prepared to mimic an arthroscopic setting...
April 2, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29605430/an-unusual-monteggia-equivalent-type-1-lesion-diaphyseal-ulna-and-radius-fractures-with-a-posterior-elbow-dislocation-in-a-child
#18
Lassaad Hassini, Aymen Saidi, Boujemaa Touati, Aymen Ben Fradj, Issam Aloui, Abderrazek Abid
In this report, we describe an extremely unusual Monteggia equivalent type 1 lesion in a 10-year-old boy following a fall from a height of 1 m. On the plain radiographs, our patient had a particular Monteggia equivalent type 1 injury associating a posterior elbow dislocation with diaphyseal radius and ulna fractures. The patient was treated by closed reduction technique. At six months of follow-up, the fractures were consolidated and the elbow was stable. To our knowledge, only 8 adult cases and one paediatric observation with similar lesions had been reported through medical literature...
February 20, 2018: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29592988/paediatric-forearm-fracture-with-a-twist-a-proximal-radioulnar-translocation-combined-with-radial-head-fracture
#19
Femke Nawijn, Benjamin Lucas Emmink, Jort Keizer, Willem-Maarten Bosman
A 10-year-old girl presented to the emergency department with proximal radioulnar translocation and radial head fracture, after fall onto an outstretched hand. Open reduction was used to reduce and stabilise the elbow joint after which the radial head was fixated by Kirschner wires. Three months after surgery, full range of motion was regained and union of the radial head was achieved. Proximal radioulnar translocation is a rare injury which is often missed on initial radiographs. Persistent restriction of forearm rotation with seemingly normal elbow configuration must trigger to take a closer look at the relationship between the ulna, radius and distal humerus...
March 28, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29580223/association-between-braced-curve-behavior-by-pubertal-growth-peak-and-bracing-effectiveness-in-female-idiopathic-scoliosis-a-longitudinal-cohort-study
#20
Sai-Hu Mao, Xu Sun, Ben-Long Shi, Yong Qiu, Bang-Ping Qian, Jack C Y Cheng
BACKGROUND: Pre-pubertal idiopathic scoliosis (IS) is associated with high risk of bracing ineffectiveness. Integrated multidimensional maturity assessments are useful but complex to predict the high-risk occurrence of curve progression. This study is designed to provide a simple screening method for brace effectiveness by determining whether or not the braced curve behavior at growth spurt, being defined as variations in Cobb angle velocity (AV) at peak height velocity (PHV), can be a new factor predictive of brace outcome prescribed before PHV...
March 27, 2018: BMC Musculoskeletal Disorders
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