Fig. 13
From: Bernese periacetabular osteotomy (PAO): from its local inception to its worldwide adoption
Severe deformity (courtesy Prof. P. Rego, Hospital da Luz, Lisbon, Portugal) of the right hip in a 16-year-old male after open reduction at the age of 1.5 years, followed by avascular necrosis. a Varus osteotomy at the age of 14 years, which did not improve limping and pain. b Postoperative radiography after complex surgery with relative lengthening of the neck, intracapital osteotomy to reduce the size of the head, and subtrochanteric derotation osteotomy followed by PAO. c The 4-year follow-up result with good and pain-free function