32mm alumina on alumina hip replacement for femoral neck fracture
Hip replacement is considered the best option for treatment of displaced intracapsular fracture of the femoral neck (FFN). The size of the femoral head is an important factor that influences the outcome when a total hip arthroplasty (THA) is performed: implants with a 28mm femoral head are prone to dislocate more than ones with a 32mm. Obviously a large head coupled to a polyethylene inlay can lead to more wear, osteolysis and failure of the implant. Ceramic provides less friction and minimal wear even with larger heads.
31 THAs were performed for displaced intracapsular FFN, using a 32mm alumina-alumina coupling: at an average follow-up of 64 months, 29 have been reviewed clinically and radiologically. None of the implants had been revised for any reason, none of the cups were considered failed, no dislocations and no breakage of the ceramic components have been recorded. One anatomic cementless stem was probably loose radiologically.
KeywordsFemoral Head Internal Fixation Femoral Neck Fracture Frictional Torque Displace Femoral Neck Fracture
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