Revision Total Hip Arthroplasty for Spongy Metal Lübeck Hip Prosthesis with Repeated Stem Fracture and Periprosthetic...

The fully porous structure of the Lübeck prosthesis is designed to closely resemble cancellous bone. Several studies have reported 'good' to 'excellent' mid- to long-term results for use of the Lübeck, but stem fractures have been reported as a complication. We report on the case of an 85-year-old patient who underwent total hip arthroplasty (THA) using the Lübeck more than 25 years ago who underwent revision surgery for management of two periprosthetic femoral fractures and a stem fracture. A subtrochanteric fracture and a fracture of the stem were observed on radiographs, and a radiolucent line was observed in the proximal portion of the stem and a well-fixed distal portion was observed. Revision THA using a proximal femoral replacement stem and resection of the proximal femur has been proven as an effective procedure for treatment of an elderly patient with a fractured Lübeck stem with a well-fixed distal stem.