The anterior centre-edge (VCA) angle quantifies the anterior cover of the f
emoral head, and angles of less than 20 degrees are considered abnormal. We
have measured the VCA angles in hips without osteoarthritic changes. We to
ok bilateral false-profile radiographs of nine female and 30 male cadavers
without signs of osteoarthritis. The mean age at the time of death was 72 S
ears (46 to 92). The mean VCA angle was 32.8 degrees (17.7 to 53.6). The SD
was 7.9 degrees.
Our findings suggest that the threshold of abnormality of the VCA angle may
be slightly lower than previously thought. This information may be useful
in counselling patients with asymptomatic acetabular dysplasia.