View Full Version : Ball and Socket Assumption

Leonard D'addesi
07-31-1996, 03:06 AM
Hello to all,

I am a masters student and my research involves locating the hip joint
center. I have a few simple questions that I am confused about:

1. I discovered in the biomech-l archives that the hip joint can be
modelled as a ball and socket joint if the centers of the femoral head
and acetabulum are the same and the contact surface is spherical. Is
this a good definition of the center of rotation?

2. Does the ball and socket model of the hip joint hold true for patients
that have neuromuscular diseases such as CP? Has anyone done a study to
show whether the model holds true?

I would greatly appreciate any references. I will post a summary of

Thank you.

Leonard D'Addesi
Human Performance Lab
Thomas Jefferson University Hospital
Tel: 215-503-1646
Fax: 215-923-2475
Email: sg943dvw@dunx1.ocs.drexel.edu