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  • Title: Outcomes for four-part proximal humerus fractures treated with a locking compression plate and an autologous iliac bone impaction graft.
    Author: Kim SH, Lee YH, Chung SW, Shin SH, Jang WY, Gong HS, Baek GH.
    Journal: Injury; 2012 Oct; 43(10):1724-31. PubMed ID: 22819250.
    Abstract:
    OBJECTIVES: The study aims to evaluate outcomes of autologous iliac bone impaction grafts (AIBIGs) with locking-compression plates (LCPs) in four-part proximal humeral fracture. METHODS: Between October 2004 and October 2008, 21 AIBIG with LCP osteosyntheses were done for four-part proximal humeral fractures. Patients included seven males and 14 females. Their mean age at the time of the operation was 66.3±16.9 years (range: 24-87 years). Five patients had high-energy fractures other than fall from standing height. There were two fracture-dislocation cases, and three valgus-impacted fractures. The length of the calcar segment attached to the articular segment was 7.04±6.10mm; 13 of the 21 cases had lengths less than 8mm. Medial-hinge displacement was 16.77±15.84mm; 19 of the 21 cases had displacements more than 2mm. RESULTS: There was no avascular necrosis of the humeral head and union was achieved in all cases. Varus collapse and hardware-related complications were not observed. Postoperative neck-shaft angles were found to be 129±9° (range: 109-146°). Neer scores were 92.0±6.3 (range: 81-100). CONCLUSION: The results of using AIBIG with LCP for four-part proximal humeral fractures are excellent. There are significant bone defects in osteoporotic or comminuted fractures and LCP alone does not always provide reliable fixation. Therefore, meticulous technique and use of AIBIG in this complicated type of fracture can ensure a favourable outcome.
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