ケーブル併用ロッキングプレートによる大腿骨ステム周囲骨折に対する骨接合術の術後成績

摘要

[SUMMARY] 【Objective】 The aim of the study is to document the outcome of osteosynthesis with locking plate and cable for periprosthetic femoral fracture（PFF）. 【Patients】 Between 2007 and 2014, nine patients were identified: five with Vancouver type B1 fracture, one with type B2, and three with type C. A single lateral locking plate and cables were used for osteosynthesis in all patients. Cerclage also was used to gain tight fixation depending on the fracture type. The rate and the time of fracture union, walking ability at final follow-up, the position of the fracture reduction at the time of surgery, and complications of surgery were investigated. 【Results】 Patients achieved fracture union on average by 6.5 months after fixation. At mean follow-up of 14 months, 7 of 9 patients had recovered their pre-injury walking ability. Two patients still had a fracture gap of 4mm after fixation, one had stem subsidence of 5mm one month after fixation, and another had delayed-union. There were no serious complications such as infection or hardware failure. 【Conclusion】 The outcome of osteosynthesis with locking plates and cables for PFFs was successful. The degree of reduction and strong fixation are essential factors for the treatment of periprosthetic femoral fractures.