Summary: the hip with an abnormal angle which leads to a secondary bowlegeness =genu varus or secondary knock knees =genu valgus This is important to diagnose as the orthopedic surgeon could do high tibial wedge excisions to correct the angles This would avoid years of suffering from severe arthritis of the knees which would have been the consequence of neglected alignment problem
Image Dimensions: 400 x 320
Image originally found here.