Clinical orthopaedics and related research
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Clin. Orthop. Relat. Res. · Mar 2013
Comparative StudyStaples equal sutures for skin closure after soft tissue tumor resection.
Wound closure accounts for a relatively constant portion of the time required to complete a surgical case. Both longer closure times and wound infections contribute to higher medical costs and patient morbidity. ⋯ Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.
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Clin. Orthop. Relat. Res. · Mar 2013
Joint-preserving tumor resection and reconstruction using image-guided computer navigation.
Joint-preserving surgery is performed in select patients with bone sarcomas of extremities and allows patients to retain the native joint with better joint function. However, recurrences may relate to achieving adequate margins and there is frequently little room for error in tumors close to the joint surface. Further, the tumor margin on preoperative CT and/or MR images is difficult to transpose to the actual extent of tumor in the bone in the operating room. ⋯ Level IV, therapeutic study. See Instructions for Authors for a complete description of levels of evidence.
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Clin. Orthop. Relat. Res. · Mar 2013
Locking buttons increase fatigue life of locking plates in a segmental bone defect model.
Durability of plate fixation is important in delayed union. Although locking plates result in stronger constructs, it is not known if locking affects the fatigue life of a plate. Two locking screws on either side of the nonunion could decrease working length and increase strain in the plate. However, the reinforcing effect of the locking head on the plate may compensate, so that it is unclear whether locking reduces fatigue life. ⋯ Locking buttons in holes adjacent to a defect may improve durability, which is important when delayed union is a possibility.
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Clin. Orthop. Relat. Res. · Mar 2013
Lateralized reverse shoulder arthroplasty maintains rotational function of the remaining rotator cuff.
Humeral rotation often remains compromised after nonlateralized reverse shoulder arthroplasty (RSA). Reduced rotational moment arms and muscle slackening have been identified as possible reasons for this impairment. Although several clinical studies suggest lateralized RSA may increase rotation, it is unclear whether this is attributable to preservation of rotational moment arms and muscle pretension of the remaining rotator cuff. ⋯ Our findings could explain clinically improved rotation in lateralized RSA in comparison to nonlateralized RSA.