Journal of shoulder and elbow surgery
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J Shoulder Elbow Surg · Jun 2010
Comparative StudyBiomechanical comparison of a proximal humeral locking plate using two methods of head fixation.
Locking plates have emerged as the implant of choice for stabilization of proximal humeral fractures. The biomechanical properties of a locked plating system using smooth pegs vs threaded screws for fixation of the humeral head were compared to test the hypothesis that there would be no biomechanical difference between pegs and threaded screws. ⋯ Our study contributes to the published evidence evaluating forces across the glenohumeral joint and suggests that early use of the affected extremity for simple activities of daily living may be safe. Use of the arm for assisted ambulation requiring a crutch, cane, walker, or wheelchair should be determined on a case-by-case basis.
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J Shoulder Elbow Surg · Jun 2010
Comparative StudyPitfalls and complications with locking plate for proximal humerus fracture.
The aim of this study was to identify specific complications of locking plate fixation of proximal humerus fractures. ⋯ Locked screw-plates provide more secure fixation of fractures, especially in weak bone. Complications rate remains high. Two complications are to be distinguished: 1) technical complications in plate positioning, length of the screws or secondary screw cutout strongly influence the final clinical result; and 2) specific complications related to this technology such as pseudarthrosis or plate fracture.
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J Shoulder Elbow Surg · Jun 2010
Comparative StudyThe results of ORIF of displaced unstable proximal humeral fractures using a locking plate.
Surgical management of displaced unstable proximal humerus fracture remains a challenge due to poor proximal bone quality and significant deforming forces. We hypothesized that the technique of application and mechanical properties of the proximal humeral locking plate would allow successful treatment of unstable and displaced proximal humeral fractures even in the face of osteoporotic bone. ⋯ The locking plate is an excellent device in the management of displaced unstable proximal humeral fractures and is expanding the indications for ORIF in these fractures.