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  • Title: High union rates of locking compression plating with cortical strut allograft for type B1 periprosthetic femoral fractures.
    Author: Yeo I, Rhyu KH, Kim SM, Park YS, Lim SJ.
    Journal: Int Orthop; 2016 Nov; 40(11):2365-2371. PubMed ID: 26759257.
    Abstract:
    PURPOSE: Unified classification system (UCS) type B1 periprosthetic femoral fractures are associated with many complications, and management decisions continue to be controversial. The purpose of this study was to evaluate outcomes of UCS type B1 periprosthetic femoral fractures treated by locking compression plating with strut allograft augmentation. MATERIALS AND METHODS: We retrospectively reviewed 17 consecutive UCS type B1 periprosthetic femoral fractures treated by open reduction and internal fixation using a lateral locking compression plate supplemented with an anterior cortical strut allograft. There was one man and 16 women with an average age of 74 years (range, 57-92 years). All had a cementless hip arthroplasty, and eight of the arthroplasties were revisions. RESULTS: The mean duration of follow-up was 28 months (range, 12-74 months). All 17 fractures healed successfully at a mean of 20 weeks (range, 12-30 weeks). The mean post-operative Harris hip score was 86 points (range, 77-95 points). No mechanical complications such as failure of plate or screws and malalignment were noted. According to the graft-remodeling classification of Emerson et al., a partial bridging was observed in nine and a complete bridging in eight. Two patients required a removal of the plate due to irritation of the iliotibial band. No femoral stem loosening or deep infection was observed. CONCLUSION: Our findings indicate that open reduction and internal fixation of UCS type B1 periprosthetic femoral fractures using a lateral locking compression plate supplemented with anterior cortical strut allograft provides adequate mechanical stability of fracture fixation and enhances the fracture healing.
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