Figures & data
Figure 1. Kaplan-Meier survivorship curve with 95% pointwise confidence intervals using total hip arthroplasty as the endpoint. Vertical marks indicate censored data.
Figure 2. Right hip of a 15-year-old girl with osteonecrosis of the femoral head secondary to cortisone intake for marrow transplantation. A. Preoperatively, Steinberg stage II with HHS of 85. B. 5 years later, radiographic Steinberg staging remained unchanged and HHS was 100.
Figure 3. Right hip of a 38-year-old man with idiopathic osteonecrosis. A. Preoperatively, Steinberg stage IV with HHS of 63. B. 3.5 years later, Steinberg stage remained unchanged and HHS was 93.
Figure 4. 27-year-old man with osteonecrosis secondary to cortisone intake for Hodgkin lymphoma. A. Preoperatively, the disease was clas-sified as Steinberg stage II. B. 3 years later, the hip had deteriorated radiographically to Steinberg stage VI and required revision to THA.
