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https://www.readbyqxmd.com/read/28719548/forearm-pronation-osteotomy-for-supination-contracture-secondary-to-obstetrical-brachial-plexus-palsy-a-retrospective-cohort-study
#1
Aharon Z Gladstein, Brant Sachleben, Emily S Ho, Alison Anthony, Howard M Clarke, Sevan Hopyan
BACKGROUND: Obstetrical brachial plexus palsy can lead to fixed forearm supination contracture. Fixed supination may lead to functional deficits as the affected hand cannot be positioned optimally for activities on a desk such as writing and typing, or for using tools including utensils, which require a neutral or pronated forearm. Forearm pronation osteotomy has been used to address this problem, although the functional benefit over nonoperative management has not been clearly defined...
July 17, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28718329/assessment-of-forearm-rotational-control-using-4-upper-extremity-immobilization-constructs
#2
Ayesha M Rahman, Nicole Montero-Lopez, Richard M Hinds, Michael Gottschalk, Eitan Melamed, John T Capo
BACKGROUND: Forearm immobilization techniques are commonly used to manage distal radius, scaphoid, and metacarpal fractures. The purpose of our study was to compare the degree of rotational immobilization provided by a sugar-tong splint (STS), short arm cast (SAC), Munster cast (MC), and long arm cast (LAC) at the level of the distal radioulnar joint (DRUJ), carpus, and metacarpals. METHODS: Seven cadaveric upper extremity specimens were mounted to a custom jig with the ulnohumeral joint fixated in 90° of flexion...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718315/ulnar-styloid-base-fractures-cause-distal-radioulnar-joint-instability-in-a-cadaveric-model
#3
Tyler S Pidgeon, Joseph J Crisco, Gregory R Waryasz, Douglas C Moore, Manuel F DaSilva
BACKGROUND: The deep portion of the distal radioulnar ligaments (DRUL) inserts on the ulnar fovea and is the most important stabilizer of the distal radioulnar joint (DRUJ). Ulnar styloid base fractures that include the ulnar fovea may cause DRUJ instability. METHODS: DRUJ stability in pronosupination was evaluated in 12 fresh-frozen upper extremities (4 female) aged 52 to 68 years (mean: 58.8 years) using a custom fixture, which allowed free rotation of the radius around the fixed ulna...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28718308/ulnar-shortening-versus-distal-radius-corrective-osteotomy-in-the-management-of-ulnar-impaction-after-distal-radius-malunion
#4
William R Aibinder, Ali Izadpanah, Bassem T Elhassan
BACKGROUND: Distal radius malunions lead to functional deficits. This study compares isolated ulnar shortening osteotomy (USO) to distal radius osteotomy (DRO) for the treatment of ulnar impaction syndrome following distal radius malunion. METHODS: We retrospectively reviewed 11 patients with extra-articular distal radius malunions treated for ulnar impaction with isolated USO. This group was compared to a 1:1 age- and sex-matched cohort treated with isolated DRO for the same indication...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28709795/a-biomechanical-comparison-of-extensor-carpi-ulnaris-subsheath-reconstruction-techniques
#5
Sameer K Puri, Kyle W Morse, Krystle A Hearns, Michelle G Carlson
PURPOSE: Several surgical stabilization techniques have been described to address pathological subluxation of the extensor carpi ulnaris (ECU) tendon, with no comparative data available. This study compares ECU stability after subsheath reconstruction, with and without ulnar groove deepening, to stability with an intact subsheath in a cadaveric model. METHODS: Position of the ECU tendon relative to the ulnar groove was measured in 5 human cadaveric specimens with the subsheath intact, sectioned, and after 3 reconstruction scenarios: reconstructed, reconstructed with ulnar groove deepened, and ulnar groove deepened with subsheath sectioned...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28709790/corrective-osteotomy-for-malunited-diaphyseal-forearm-fractures-using-preoperative-3-dimensional-planning-and-patient-specific-surgical-guides-and-implants
#6
Ann-Maria Byrne, Bianca Impelmans, Veronique Bertrand, Annemieke Van Haver, Frederik Verstreken
PURPOSE: Three-dimensional planning based on computed tomography images of the malunited and the mirrored contralateral forearm allows preoperative simulations of corrective osteotomies, the fabrication of patient-specific osteotomy guides, and custom-made 3-dimensional printed titanium plates. This study aims to assess the precision and clinical outcome of this technique. METHODS: This was a prospective pilot study with 5 consecutive patients. The mean age at initial injury was 11 years (range, 4-16 years), and the mean interval from the time of injury to the time of corrective surgery was 32 months (range, 7-107 months)...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28708756/anatomic-reconstruction-of-distal-radioulnar-ligaments-with-tendon-graft-for-treating-distal-radioulnar-joint-instability-surgical-technique-and-outcome
#7
Daniela Meyer, Andreas Schweizer, Ladislav Nagy
Among the various reasons for chronic posttraumatic ulnar-sided wrist pain, instability of the distal radioulnar joint (DRUJ) has recently received major attention and finally achieved fundamental progress in understanding thanks to anatomic and biomechanical studies. This has resulted in more physiological and successful treatment methods compared with the historic options. One and the most dramatic surgical technique consists in the replacement of the main ligamentous stabilizer of the DRUJ, the so-called triangular fibrocartilage, with a tendon graft...
July 13, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/28698474/a-novel-spatial-feature-for-the-identification-of-motor-tasks-using-high-density-electromyography
#8
Mislav Jordanić, Mónica Rojas-Martínez, Miguel Angel Mañanas, Joan Francesc Alonso, Hamid Reza Marateb
Estimation of neuromuscular intention using electromyography (EMG) and pattern recognition is still an open problem. One of the reasons is that the pattern-recognition approach is greatly influenced by temporal changes in electromyograms caused by the variations in the conductivity of the skin and/or electrodes, or physiological changes such as muscle fatigue. This paper proposes novel features for task identification extracted from the high-density electromyographic signal (HD-EMG) by applying the mean shift channel selection algorithm evaluated using a simple and fast classifier-linear discriminant analysis...
July 8, 2017: Sensors
https://www.readbyqxmd.com/read/28676150/volar-radioscapholunate-arthrodesis-and-distal-scaphoidectomy-after-malunited-distal-radius-fractures
#9
Stefan Quadlbauer, Martin Leixnering, Josef Jurkowitsch, Thomas Hausner, Christoph Pezzei
PURPOSE: The purpose of this study was to assess range of motion (ROM), pain, and incidence of radiographic degenerative joint disease (DJD) after volar radioscapholunate (RSL) arthrodesis and distal scaphoidectomy (DSE) following malunited distal radius fractures (DRF). METHODS: Fourteen patients with malunited DRF and DJD limited to the radiocarpal joint underwent RSL arthrodesis and DSE between 2006 and 2014. These were retrospectively analyzed both clinically and radiologically...
July 1, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28670713/sonography-of-the-pronator-teres-normal-and-pathologic-appearances
#10
Viviane Créteur, Afarine Madani, Azadeh Sattari, Stefano Bianchi
The pronator teres muscle is rarely examined during a routine sonographic examination of the elbow joint. Nevertheless, it can be affected by a variety of conditions, including trauma and tumors, and can be implicated in compression of the median nerve. This pictorial essay first illustrates the anatomy and biomechanics of the pronator teres. Then we present the sonographic technique for examination, normal sonographic appearance, and anatomic variations of the pronator teres and adjacent structures as well as sonography of their main disorders...
July 3, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28670344/the-influence-of-gender-and-body-mass-index-on-the-fpi-6-evaluated-foot-posture-of-10-to-14-year-old-school-children-in-s%C3%A3-o-paulo-brazil-a-cross-sectional-study
#11
Barbarah Kelly Gonçalves de Carvalho, Patrícia Jundi Penha, Nárima Lívia Jundi Penha, Rodrigo Mantelatto Andrade, Ana Paula Ribeiro, Sílvia Maria Amado João
BACKGROUND: Adolescence is marked by changes to the body, including the feet. The Foot Posture Index (FPI-6) stands out from other foot type classification methods as valid, reliable, and multidimensional. However, the current literature differs according to age group, with little consolidation of normative data in school children, largely due to the influence of such factors as sex, age and body mass index (BMI). Thus, this study assesses foot posture in adolescents according to age, sex and BMI...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28663388/when-is-a-simple-fracture-of-the-lateral-malleolus-not-so-simple-how-to-assess-stability-which-ones-to-fix-and-the-role-of-the-deltoid-ligament
#12
N Gougoulias, A Sakellariou
Stable fractures of the ankle can be safely treated non-operatively. It is also gradually being recognised that the integrity of the 'medial column' is essential for the stability of the fracture. It is generally thought that bi- and tri-malleolar fractures are unstable, as are pronation external rotation injuries resulting in an isolated high fibular fracture (Weber type-C), where the deltoid ligament is damaged or the medial malleolus fractured. However, how best to identify unstable, isolated, trans-syndesmotic Weber type-B supination external rotation (SER) fractures of the lateral malleolus remains controversial...
July 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28659858/biometric-digital-health-technology-for-measuring-motor-function-in-parkinson-s-disease-results-from-a-feasibility-and-patient-satisfaction-study
#13
Georgia Mitsi, Enrique Urrea Mendoza, Benjamin D Wissel, Elena Barbopoulou, Alok K Dwivedi, Ioannis Tsoulos, Athanassios Stavrakoudis, Alberto J Espay, Spyros Papapetropoulos
OBJECTIVES: To assess the feasibility, predictive value, and user satisfaction of objectively quantifying motor function in Parkinson's disease (PD) through a tablet-based application (iMotor) using self-administered tests. METHODS: PD and healthy controls (HCs) performed finger tapping, hand pronation-supination and reaction time tasks using the iMotor application. RESULTS: Thirty-eight participants (19 with PD and 17 HCs) were recruited in the study...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28658863/complicated-hydatid-cyst-of-ulna-a-rare-case-report
#14
I V Reddy, A H Ashwin Kumar, Bheemsingh Samorekar, B Amar Babu, Anil Kumar Mettu
Although hydatidosis is not uncommon in tropical countries, still bony involvement is comparatively rare. The aetiological agent is Echinococcus granulosus, a parasite belonging to cestode group with dog as definitive host and man as incidental host. We present a case of young male, who consulted us for painless, multiple swellings in his right forearm of three years duration, with restricted wrist movements. On examination multiple non tender, soft to firm swellings were noted with restricted terminal pronation...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28656872/prospective-study-of-surgical-fixation-of-radial-head-fractures-using-cannulated-headless-compression-screws-for-simple-and-complex-radial-head-fractures
#15
Pang Hung Wu, Anushri Dixit, David Meng Kiat Tan, Liang Shen, Yu Han Chee
INTRODUCTION: Fixing the two-part Mason II radial head fracture using screws is becoming a popular practice. However, the screw fixation efficacy for three-part Mason III and IV fractures is controversial. The purpose of this study is to determine the effectiveness of using a uniform technique of headless compression screw fixation in simple, isolated Mason II and complex three-part Mason III and IV radial head fractures in terms of functional outcome, treatment efficiency and assessment of complications with the procedure...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28656318/efficiency-of-fragment-specific-fixation-plates-in-the-treatment-of-comminuted-distal-radial-fractures
#16
Elhadi Musaab Elhadi Babikir, Eyad Daood Al-Maqdassy, Khalid Hasan, Shamsi Abdul Hameed, Abduljabbar Alhammoud, Mohammed Mubarak Al-Ateeq Al-Dosari
PURPOSE: The purpose of this study was to assess the clinical, radiologic and functional outcome of treating comminuted intra-articular distal radius fractures with fragment specific fixation. METHODS: This was a retrospective chart review of 25 unstable intra-articular distal radius fractures (type C2 AO) that had fragment specific fixation done in the orthopaedic department of the Hamad General Hospital (level 1 trauma center) over three years (2010-2013), with a follow up of one year post-operatively...
June 27, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28655630/a-novel-anterior-approach-for-the-fixation-of-ulnar-coronoid-process-fractures
#17
Xiaohua Yang, Wenli Chang, Wei Chen, Song Liu, Yanbin Zhu, Yingze Zhang
BACKGROUND: There is no universally accepted approachto the elbow for the fixation of coronoid process fractures.This study aims to introduce a novel anterior surgicalapproach for the fixation of the ulnar coronoid fracture, with minimal surgical dissection damage and excellent visualization for reduction and internal fixation. HYPOTHESIS: The anterior approach can facilitatesatisfactory outcomesfor coronoid process fractures. MATERIAL AND METHODS: From February 2010 to July 2014, 12 patients (8 males and 4 females; range 14-62 years; mean age 31 years) with a closed fracture of the coronoid process of the ulna were included in this study...
June 24, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28648893/assessment-of-self-determination-in-adolescents-with-neonatal-brachial-plexus-palsy
#18
Donna Bergman, Lynnette Rasmussen, Kate Wan-Chu Chang, Lynda J-S Yang, Virginia S Nelson
BACKGROUND: The term self-determination refers to decision-making, goal setting, and perseverance to achieve those goals. Numerous studies have established the importance of self-determination to enhance learning and improve post-school outcomes. However, most studies evaluate students with learning disabilities, cognitive impairment, or behavioral disabilities. There is an absence of research on self-determination for adolescents with physical disabilities. OBJECTIVE: To assess self-determination of adolescents with neonatal brachial plexus palsy (NBPP) compared to their typically developing peers via self-reported measures of function...
June 22, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28644943/failure-of-wrist-hemiarthroplasty
#19
Eric G Huish, Zachary Lum, H Brent Bamberger, Marc A Trzeciak
BACKGROUND: Wrist hemiarthroplasty has emerged as a motion-sparing option for severe wrist arthritis. It is technically easy with advantages of limited bone resection and no risk of nonunion. Given the relative infancy of the procedure in clinical practice, there are limited data on patient outcomes. METHODS: Eleven patients were treated with wrist reconstructive hemiarthroplasty. Indications included 1 patient with scaphoid nonunion advanced collapse, 9 patients with scapholunate advanced collapse, and 1 patient with capitolunate arthritis...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28639263/subthalamic-beta-dynamics-mirror-parkinsonian-bradykinesia-months-after-neurostimulator-implantation
#20
Leon Amadeus Steiner, Wolf-Julian Neumann, Franziska Staub-Bartelt, Damian M Herz, Huiling Tan, Alek Pogosyan, Andrea A Kuhn, Peter Brown
BACKGROUND: Exaggerated oscillatory activity in the beta frequency band in the subthalamic nucleus has been suggested to be related to bradykinesia in Parkinson's disease (PD). However, studies seeking correlations between such activity in the local field potential and motor performance have been limited to the immediate postoperative period, which may be confounded by a stun effect that leads to the temporary alleviation of PD deficits. METHODS: Local field potentials were recorded simultaneously with motor performance in PD patients several months after neurostimulator implantation...
June 22, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
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