Rotational profile of the lower extremity and foot progression angle: computerized tomographic examination of 50 male adults

Acetabular, femoral and tibial torsion of 50 normal adult male subjects wer e measured by computerized tomography and the relationship between these an gles and foot-progression angle was examined. The mean acetabular anteversi on was 15.6 degrees on the right and 15.8 degrees on the left, (range 3 deg rees-30 degrees). The mean femoral torsion was 6.5 degrees on the right and 5.8 degrees on the left (range 14 degrees-28 degrees). The mean tibiofibul ar torsion was 30.9 degrees on the right and 29.1 degrees on the left (rang e 16 degrees-50 degrees). Although the normal range of torsional measuremen ts of the lower extremity was very broad, subjects usually had out-toeing w ith a mean foot-progression angle of 13.7 degrees on the right and 13.0 deg rees on the left (range 6 degrees-21 degrees). No correlation was detected on the rotation between different levels of the lower limb. No difference w as detected in the lower extremity rotational profile between right and lef t sides.