The Journal of hand surgery
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To evaluate the feasibility of restoring the deltoid function in patients with C5 through C7 root avulsion injuries by transferring 2 intercostal nerves to the anterior branch of the axillary nerve through a posterior approach. The preliminary results of the clinical application of this procedure also are reported. ⋯ Therapeutic IV.
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Comparative Study
Biomechanical comparison of fixed-angle volar plate versus fixed-angle volar plate plus fragment-specific fixation in a cadaveric distal radius fracture model.
To test the hypothesis that combining orthogonal fragment-specific fixation with volar fixed-angle fixation provides markedly higher interfragment stability and construct strength compared with volar fixed-angle fixation alone. ⋯ In a simulated cadaveric model of the distal radius intra-articular fracture, the combined technique of fragment-specific plating with volar fixed-angle fixation alone provides superior biomechanical strength and stability over the volar fixed-angle fixation alone.
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To investigate if early controlled passive mobilization was likely to cause harm with regard to affecting the quality and rate of early fracture healing in a closed, potentially unstable, diaphyseal fracture in a rabbit model. ⋯ During the initial 28 days after the fracture, in this simulated hand, closed, potentially unstable, extra-articular fracture, the early controlled passive motion protocol used in this study led to a clinical and statistical significant reduction in fracture dorsal angulation and improvement in the fracture's ability to resist and bear 4-point bending loads without increasing the total callus area. Therefore, early controlled passive mobilization after a closed, potentially unstable, diaphyseal hand fracture warrants further clinical consideration.
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Upper-extremity impairment evaluation is performed mostly by using guidelines provided by the American Medical Association (AMA). Recently, subjective disability tests, such as the Disability of the Arm, Shoulder, and Hand (DASH) questionnaire, have been developed that appreciate the limitations patients experience in everyday life. In this study, the correlation between impairment and disability was assessed after treatment for severe hand injuries with multiple phalangeal fractures, with adjustment for comorbidity and follow-up duration. ⋯ The lack of a strong correlation emphasizes the clear distinction between impairment and disability. The inclusion of disability outcome measures in the evaluation of hand trauma regimens might help to expand the clinician's view to more individualized, activity-of-daily-living-oriented, treatment regimens.
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Proximal row carpectomy (PRC) is a clinically useful motion-sparing procedure for the treatment of certain degenerative conditions of the wrist. Clinical outcome studies after PRC have shown that wrist flexion-extension averages approximately 60% of that of the contralateral wrist. The purpose of this study was to determine how the kinematics of the wrist are altered after PRC. ⋯ Removal of the proximal carpal row decreased normal wrist flexion and extension. Although ulnar deviation was preserved, radial deviation was limited by impingement of the trapezoid on the radial styloid. Radiocapitate range of motion after PRC was greater than capitolunate range of motion in the intact wrists. Compared with previously published requirements, wrist range of motion observed after PRC was sufficient for activities of daily living.