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https://www.readbyqxmd.com/read/27807114/long-term-outcome-of-step-cut-ulnar-shortening-osteotomy-for-ulnar-impaction-syndrome
#1
Loukia K Papatheodorou, Mark E Baratz, Sofia Bougioukli, Tyler Ruby, Robert W Weiser, Dean G Sotereanos
BACKGROUND: Extra-articular ulnar shortening osteotomy is a common procedure for the surgical treatment of ulnar impaction syndrome. Several techniques for this osteotomy have been developed to avoid the morbidity associated with a standard transverse osteotomy. However, these techniques require special instrumentation and are expensive. The purpose of this study was to evaluate the outcome of step-cut ulnar shortening osteotomy without special jigs for ulnar impaction syndrome. METHODS: A retrospective study of 164 consecutive patients who underwent step-cut ulnar shortening osteotomy between 2000 and 2010 was performed...
November 2, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/27719840/functional-limb-weakness-and-paralysis
#2
J Stone, S Aybek
Functional (psychogenic) limb weakness describes genuinely experienced limb power or paralysis in the absence of neurologic disease. The hallmark of functional limb weakness is the presence of internal inconsistency revealing a pattern of symptoms governed by abnormally focused attention. In this chapter we review the history and epidemiology of this clinical presentation as well as its subjective experience highlighting the detailed descriptions of authors at the end of the 19th and early 20th century. We discuss the relevance that physiological triggers such as injury and migraine and psychophysiological events such as panic and dissociation have to understanding of mechanism and treatment...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/27682293/analysis-of-soft-tissue-complications-of-volar-plate-fixation-for-managing-distal-radius-fractures-and-clinical-effect-while-preserving-pronator-quadratus
#3
J Fan, B Jiang, B Wang, K Chen, F Yuang, J Mei, G-R Yu
The aim of the study was to analysis soft-tissue complications of volar plate fixation and it's prevention strategies along with exploring clinical effects of preserving pronator quadratus (PQ) muscle. From February 2011 to February 2013, sixty-five patients with distal radius fracture underwent open reduction and internal fixation with the volar locking palmar plates. The group with preserving PQ involved 30 patients and group with PQ repair involved 35 patients. Surgeons must took great care of not -letting drill pierce dorsal cortical bone rapidly and dorsal carpal tangential fluoroscopy was also taken in addition to lateral fluoroscopy to get accurate screw length...
August 2016: Acta Orthopaedica Belgica
https://www.readbyqxmd.com/read/27631096/low-origin-of-the-radial-artery-a-case-study-including-a-review-of-literature-and-proposal-of-an-embryological-explanation
#4
Grzegorz Wysiadecki, Michał Polguj, Robert Haładaj, Mirosław Topol
A low origin of the radial artery is a rare anatomical variation, with the incidence estimated at 0.2 %. This report presents a previously unrecorded case of an unusual distal origin of the radial artery, co-occurring with a double recurrent radial artery. The radial artery arose under the pronator teres muscle, 76 mm below the intercondylar line of the humerus. After emerging from under the tendon of the pronator teres muscle, the radial artery took a typical course and terminated in the deep palmar arch...
September 15, 2016: Anatomical Science International
https://www.readbyqxmd.com/read/27610702/radial-shaft-reconstruction-with-an-intercalary-endoprosthesis-following-resection-of-metastatic-tumor
#5
Peter D Gibson, Joseph A Ippolito, Joseph Benevenia
Improvements in imaging and treatment of musculoskeletal tumors have increased the variety of options for reconstruction following joint-sparing diaphyseal resection. The purpose of this case series was to show that reconstruction of malignant tumors of the radial shaft with an intercalary prosthesis may be an option for patients with segmental bone loss. Three consecutive patients underwent wide resection of the radial diaphysis followed by reconstruction with a custom intercalary prosthesis. A custom intercalary prosthesis with lap joint design was used in all 3 cases...
September 8, 2016: Orthopedics
https://www.readbyqxmd.com/read/27579804/the-effect-of-age-on-elbow-range-of-motion-in-pitchers
#6
Yu-Lin Wang, Hsiao-Yun Chang, Shih-Chung Cheng, Chiang Liu
BACKGROUND: Alteration of elbow range of motion (ROM) has been observed in baseball pitchers. This study aims to compare dominant elbow ROM between early-puberty, late-puberty, and young-adult pitchers. METHODS: We recruited 62 pitchers, consisting of 17 early-puberty (mean age 13.1 years old), 22 late-puberty (mean age 17.7 years old), and 23 young-adult players (mean age 19.4 years old). Dominant elbow ROMs was measured. One-way ANOVA was used to compare the differences in elbow ROM variables between 3 groups...
May 14, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27545079/the-mechanical-function-of-the-tibialis-posterior-muscle-and-its-tendon-during-locomotion
#7
Jayishni N Maharaj, Andrew G Cresswell, Glen A Lichtwark
The tibialis posterior (TP) muscle is believed to provide mediolateral stability of the subtalar joint during the stance phase of walking as it actively lengthens to resist pronation at foot contact and then actively shortens later in stance to contribute to supination. Because of its anatomical structure of short muscle fibres and long series elastic tissue, we hypothesised that TP would be a strong candidate for energy storage and return. We investigated the potential elastic function of the TP muscle and tendon through simultaneous measurements of muscle fascicle length (ultrasound), muscle tendon unit length (musculoskeletal modelling) and muscle activation (intramuscular electromyography)...
October 3, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27506570/treatment-of-displaced-supracondylar-humeral-fractures-in-children-by-humero-ulnar-external-fixation
#8
Aleksandra Bogdan, Jean Quintin, Frédéric Schuind
PURPOSE: Humero-ulnar external fixation has been proposed to treat complex supracondylar humeral fractures in children. It facilitates fracture reduction and reduces the risk of ulnar nerve lesion, which can occur after cross pinning. METHODS: In a ten year period, 28 children have been operated on in our centre by humero-ulnar external fixation, for Lagrange-Rigault stages III and IV supracondylar humeral fractures. The data about fracture management and early follow-up were obtained from our medical database...
August 9, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27468366/management-of-the-essex-lopresti-injury
#9
Andrew P Matson, David S Ruch
Essex-Lopresti injuries (ELIs) are characterized by fracture of the radial head, disruption of the forearm interosseous membrane, and dislocation of the distal radioulnar joint. This injury pattern results in axial and longitudinal instability of the forearm. Initial radiographs may fail to reveal the full extent of the injury, and therefore diagnosis in the acute setting requires a high index of suspicion. Early recognition and treatment are preferred as failure to fully treat the problem may result in chronic wrist pain from ulnar abutment or chronic elbow pain from radiocapitellar arthrosis...
August 2016: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/27467682/reconstruction-of-a-postraumatic-radial-club-hand-with-a-free-fibular-osteoseptocutaneous-flap-and-sauve-kapandji-procedure-a-case-report
#10
Ricardo Horta, Ricardo Nascimento, Alvaro Silva, Rui Pinto, Pedro Negrão, Ricardo São-Simão, Jorge Carvalho, Marta Santos Silva, Jose Amarante
Radial club hand may be congenital or acquired; radial deviation of the hand is usually found, associated with palmar flexion-pronation and treatment of severe forms of radial club hand is often difficult. Here we present a case of reconstruction of a severe postraumatic radial club hand with a free fibular osteoseptocutaneous flap and Sauve-Kapandji procedure in a 28-year-old man. The patient had a radial deviation of the wrist and right upper limb shortening as a result of an infected pseudarthrosis of the radius...
October 2016: Microsurgery
https://www.readbyqxmd.com/read/27408765/external-fixation-is-more-suitable-for-intra-articular-fractures-of-the-distal-radius-in-elderly-patients
#11
Chuang Ma, Qiang Deng, Hongwei Pu, Xinchun Cheng, Yuhua Kan, Jing Yang, Aihemaitijiang Yusufu, Li Cao
The purpose of this study was to compare the functional outcomes, psychological impact, and complication rates associated with external fixation and volar or dorsal plating in relation to the functional parameters following treatment of intra-articular fractures of the distal radius (IFDR) in patients older than 65 years. We hypothesized that using volar or dorsal plating would improve functional outcomes, but that it would be associated with more complications and equivalent functional outcomes when compared with the external fixation group...
2016: Bone Research
https://www.readbyqxmd.com/read/27346090/onabotulinumtoxina-injection-for-poststroke-upper-limb-spasticity-guidance-for-early-injectors-from-a-delphi-panel-process
#12
David M Simpson, Atul T Patel, Abraham Alfaro, Ziyad Ayyoub, David Charles, Khashayar Dashtipour, Alberto Esquenazi, Glenn D Graham, John R McGuire, Ib Odderson
BACKGROUND: OnabotulinumtoxinA reduces muscle hypertonia associated with poststroke spasticity (PSS). PSS manifests as several common postures. OBJECTIVE: To define treatment paradigms for PSS upper-limb common postures. DESIGN: Modified Delphi method. SETTING: Expert panel. PARTICIPANTS: Ten injectors experienced in the treatment and clinical research of PSS (physiatrists and neurologists) were invited to participate in the Delphi panel...
June 23, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27334986/elbow-biomechanics-of-pitching-does-age-or-experience-make-a-difference
#13
Shayne Fehr, Derek Damrow, Christopher Kilian, Roger Lyon, Xue-Cheng Liu
BACKGROUND: Elbow pain and elbow injuries are common in youth baseball players. It is not clear whether pitching experience and/or age creates biomechanical differences at the elbow and whether these differences place an athlete at greater risk. HYPOTHESES: (1) Youth pitchers will have differing elbow kinematics with regard to flexion/extension, internal/external rotation, and pronation/supination when compared with nonbaseball athletes and (2) younger youth pitchers will have differing elbow kinematics when compared with older youth pitchers...
September 2016: Sports Health
https://www.readbyqxmd.com/read/27274668/comparison-of-ball-and-racket-impact-force-in-two-handed-backhand-stroke-stances-for-different-skill-level-tennis-players
#14
Kuo-Cheng Lo, Yung-Chun Hsieh
This study compared the kinetic roles of the upper extremities in racket impact force generation between the open stance (OS) and square stance (SS) for tennis players with different skill levels in two-handed backhand strokes. Twelve male tennis players were divided into an advanced group (AG) (L3-L2 skill level) and intermediate group (IG) (L7-L6 skill level), and their data were used in a three-dimensional kinetic analysis. Their motions were captured using 21 reflective markers attached to anatomic landmarks for two-handed backhand stroke motion data collection...
June 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27044214/-percutaneous-kirschner-wire-poking-reduction-and-elastic-stable-intramedullary-nailing-fixation-for-severe-displaced-radial-neck-fractures-in-children
#15
Min Wu, Jianzhong Guan, Yuzhou Xiao, Jiansheng Zhou, Xiusong Dai, Xiaopan Wang, Zhaodong Wang, Xiaotian Chen
OBJECTIVE: To assess the effectiveness of percutaneous Kirschner wire poking reduction and elastic stable intramedullary nailing fixation for treating severe displaced radial neck fractures in children. METHODS: Between November 2010 and August 2014, 17 children with severe displaced radial neck fractures were treated with percutaneous Kirschner wire poking reduction and elastic stable intramedullary nailing fixation. There were 13 boys and 4 girls with an average age of 8...
December 2015: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/26984917/foot-and-ankle-function-at-maturity-after-ilizarov-treatment-for-atrophic-type-congenital-pseudarthrosis-of-the-tibia-a-comprehensive-outcome-comparison-with-normal-controls
#16
COMPARATIVE STUDY
Sang Gyo Seo, Dong Yeon Lee, Yeon Soo Kim, Won Joon Yoo, Tae-Joon Cho, In Ho Choi
BACKGROUND: The purpose of this study was to evaluate clinical outcomes and the biomechanical function of the foot and ankle at skeletal maturity of patients treated for atrophic-type congenital pseudarthrosis of the tibia (CPT) compared with healthy young adult controls. METHODS: Twenty-four patients (mean age of 19.1 years) who had undergone Ilizarov treatment for unilateral atrophic-type CPT were compared with twenty-four controls (mean age of 19.6 years). All participants were evaluated using validated outcome questionnaires, radiographs, physical examination, instrumented motion analysis including a multisegmental foot model, and pedobarographic measurement...
March 16, 2016: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/26969946/fixation-of-extra-articular-distal-humeral-fractures-with-a-lateral-approach-and-a-locked-plate-an-alternative-method
#17
Atilla Sancar Parmaksızoğlu, Ufuk Özkaya, Fuat Bilgili, Harun Mutlu, Ümit Çetin
OBJECTIVE: The purpose of this study was to evaluate the efficacy of lateral approach and anterolateral anatomical locked plate fixation on clinical and radiological healing of extra-articular distal humeral fractures. METHODS: Twenty-three (17 male, 6 female) consecutive patients who underwent surgical management for closed extra-articular comminuted distal humeral fractures between 2006 and 2013 were included in this study. Anterolateral fixation with an anatomical locked plate using a lateral approach was preferred...
2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/26969209/intermediate-term-evaluation-of-the-eclypse-distal-radio-ulnar-prosthesis-for-rheumatoid-arthritis-a-report-of-five-cases
#18
N Bigorre, Y Saint Cast, B Cesari, F Rabarin, G Raimbeau
HYPOTHESIS: Early medical management of rheumatoid arthritis with biotherapy has changed the traditional musculoskeletal damage from this disease. When the distal radio-ulnar joint (DRUJ) is involved, classic procedures may be inappropriate. We chose a hemi-arthroplasty of the DRUJ joint (Eclypse™) in patients with persistent synovitis and chondrolysis with a stable joint. The aim of this study was to assess the intermediate term results of this approach in these specific cases. MATERIALS AND METHODS: We report a retrospective study of 5 Eclypse arthropasties implanted between March 2005 and March 2011...
May 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/26933950/forelimb-kinematics-of-rats-using-xromm-with-implications-for-small-eutherians-and-their-fossil-relatives
#19
Matthew F Bonnan, Jason Shulman, Radha Varadharajan, Corey Gilbert, Mary Wilkes, Angela Horner, Elizabeth Brainerd
The earliest eutherian mammals were small-bodied locomotor generalists with a forelimb morphology that strongly resembles that of extant rats. Understanding the kinematics of the humerus, radius, and ulna of extant rats can inform and constrain hypotheses concerning typical posture and mobility in early eutherian forelimbs. The locomotion of Rattus norvegicus has been extensively studied, but the three-dimensional kinematics of the bones themselves remains under-explored. Here, for the first time, we use markerless XROMM (Scientific Rotoscoping) to explore the three-dimensional long bone movements in Rattus norvegicus during a normal, symmetrical gait (walking)...
2016: PloS One
https://www.readbyqxmd.com/read/26852817/new-endemic-platyrrhine-humerus-from-haiti-and-the-evolution-of-the-greater-antillean-platyrrhines
#20
Melissa Tallman, Siobhán B Cooke
Much debate surrounds the phylogenetic affinities of the endemic Greater Antillean platyrrhines. Thus far, most phylogenetic analyses have been constructed and tested using craniodental characters. We add to this dialog by considering how features of the distal humerus support or refute existing hypotheses for the origins of fossil Caribbean primates, utilizing three-dimensional geometric morphometric data in combination with character based cladistic analyses. We also add to the sample of fossil platyrrhine humeri with the description of UF 114718, a new distal humerus from Haiti...
February 2016: Journal of Human Evolution
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