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Periprosthetic humerus fractures are relatively uncommon occurrence that can be difficult to manage nonoperatively. Locking plate technology has enhanced the surgical management of these fractures. However, adequate fixation around the stem remains of some concern. We describe an osteosynthesis technique using a locking plate utilizing eccentrically placed screw holes to place "skive screws" in the proximal end of the plate to achieve fixation around the stem of the implant. A clinical series of 5 consecutive patients treated with this technique is presented with an average follow-up of 29 months (range, 12-48). Two additional patients had less than 1-year follow-up. All patients demonstrated fracture healing. Functional outcomes were limited with only 1 patient achieving forward elevation above 90 degree, and the average American Shoulder and Elbow Surgeons Function score was 28. Pain relief was nearly uniform with an average visual analog scale pain score of 0.5.
Kurowicki et al. (Thu,) studied this question.