Interprosthetic Fracture of Distal Femur Around Total Knee Replacement with Pre-Existing Dynamic Condylar Screw: 發生在股骨遠端,介乎於動力髖螺釘和全膝關節置換假體之間的骨折:病例報告

Treatment of interprosthetic fracture of distal femur around total knee replacement is difficult. Pre-existing hip implants further increase the technical challenges. In this case report, we present an 85-year-old patient who suffered from a displaced distal femur fracture with a pre-existing dynamic condylar screw and total knee replacement. Internal fixation with distal femur locking plate and incorporation of the locking plate with the pre-existing dynamic condylar screw provided a good treatment option for this difficult problem. It avoided the possible complication associated with removal of pre-existing implant and allowed sufficient overlap of the two plates to prevent any stress risers or fracture.

中 文 摘 要摘要:治療位於全膝關節置換假體周圍股骨遠端的骨折是困難的。先前已裝置的動力髖螺釘會進一步增加技術難度。在這種情況下,我們報告了一個85歲的病例,當中病人患有股骨遠端骨折,介乎於動力髖螺釘和全膝關節置換假體之間。使用股骨遠端鎖定鋼板內固定術,並把鎖定鋼板和原有的動力髖螺釘作配合,是一個很好的治療選擇。它避免了拆除原有植入物可能引起的併發症,並允許兩塊鋼板有足夠的重疊,以防止任何壓力集中或骨折。