Fig. 4.

Distance of change in elevation of the proximal femur in each step in our clinical study is shown. With hips at 0° extension, the effect of superior capsule release on femur elevation was greater than for posterior capsule release. Post to Sup = the posterior capsule was released after the superior capsule; Sup to Post = the superior capsule was released after the posterior capsule; Ant = anterior capsule release; Sup = superior capsule release; Post = posterior capsule release. (This illustration was presented as Fig. 4 in Poster No. 2039 at the 55th Annual Meeting of the Orthopaedic Research Society, February 22–25, 2009 in Las Vegas, Nevada.)