Fig. 4From: Impacts of external rotators and the ischiofemoral ligament on preventing excessive internal hip rotation: a cadaveric studyIncreasing angles via the posterior approach from the piriformis to the obturator externus. The muscle name indicates the increased angle measured after muscle resection. *p < 0.05 and **p < 0.01 by one-way analysis of variance with post hoc Tukey–Kramer testBack to article page