Objective evaluation for initial stability of highly porous cup without screws in total hip arthroplasty for femoral neck fracture

AbstractBackgroundThe purpose of this study was to objectively investigate the initial fixation of highly porous cups in THA for femoral neck fractures.MethodsTHA for displaced femoral neck fractures was performed in 52 consecutive patients. We objectively measured the rotational torque for cup stability, and the primary endpoint was the success rate of press-fit fixation without screws.ResultsThe success rate of press-fit fixation without screws was 96.1%. No specific complications were occurred.ConclusionThe initial stability of highly porous cups was excellent for femoral neck fractures with a high success rate of press-fit fixation without screws.