We reviewed 28 hips in 14 patients with severe bilateral idiopathic me
dial femoral torsion which had been corrected by intertrochanteric rot
ation osteotomy using crossed pins for fixation and a hip spica. There
were 10 girls and 4 boys with a mean age of 7 years and 9 months All
had functional and cosmetic disability before operation. The average f
ollow up was for 3 years and 9 months. Full correction was achieved in
27 hips. In one partial avascular necrosis of the femoral head occurr
ed one year after operation and was treated by an acetabular augmentat
ion procedure with a satisfactory outcome.