Fig. 4From: Comparison of improved range of motion between cam-type femoroacetabular impingement and borderline developmental dysplasia of the hip -evaluation by virtual osteochondroplasty using computer simulation-Maximum internal rotation angle in the three groups before virtual osteochondroplasty The mean maximum internal rotation angle in the DDH W/O cam group was significantly greater than that in the cam-FAI (P = 0.001) and DDH W/ cam groups (P = 0.002)Back to article page