Abstract: Objective  To evaluate the clinical efficacy of locking plate with cable hole and greater trochanteric union device in the treatment of Vancouver type B1 periprosthetic femoral fractures. Methods A retrospective analysis of the clinical data of 27 patients(27 hips) who underwent internal fixation with locking plates combined with cable loops for periprosthetic femoral fracture in Renmin Hospital of Wuhan University from January 2016 to September 2021.The surgery time,intraoperative bleeding volume,hospitalization days,complete weight bearing time,Harris hip functional score,and VAS pain score were recorded.Prosthesis and internal fixation plate stability and fracture healing were assessed by digital radiographs.Results All 27 patients were followed up for 12-58 months,with a mean of(21.74±15.42) months.All patients achieved fracture healing without infection,dislocation,loosening,non-union or malunion,and the mean preoperative HHS functional score and VAS pain score were(31.84±3.92) and(7.63±0.97) points.The mean HHS and VAS pain scores at the final postoperative follow-up were(85.43±4.73) and(2.00±0.78),and the clinical outcomes of HHS scores and VAS pain scores were significantly better after treatment with locking plates combined with cable ring internal fixation,with statistically significant differences(P<0.05).ConclusionThe treatment of periprosthetic femoral fractures of Vancouver B1 type with a locking plate with a cable hole and a greater trochanteric union device can achieve satisfactory clinical outcomes.

Key words: hip arthroplasty, periprosthetic femoral fracture, locking plate, surgical treatment, complication