Fig. 4
From: Intertrochanteric curved varus osteotomy for subchondral fracture of the femoral head: a case series
Case 1 (30-year-old man). a An AP radiograph of the right hip at the first visit. b T1-weighted magnetic resonance image (MRI) shows a low-signal area and low-intensity band (arrow) in the weight-bearing region of the right femoral head. c Six months after onset, inter-trochanteric curved varus osteotomy was performed. d AP radiograph obtained 2 years postoperatively showing fusion of the osteotomy site. Although there is slight osteophyte formation, there is no narrowing of the joint space, and hip function is good. e T1-weighted MRI 2 years postoperatively. The low-signal area that was present preoperatively disappeared