Fig. (5) Comparison of pre- and post-operative apparent supination in OBPI patients. Preoperative photograph of a 5.8-year old girl (a), a 4.2 year old boy (C) and a 6.2 year old girl (E), demonstrating limitation of apparent supination; same patients, 59, 62 and 60 months after triangle tilt surgery respectively (B, D and F).