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There is a relatively recent addition to the potential causes of hip arthritis that we are investigating at the Neurologic & Orthopedic Hospital of Chicago: Femoral Acetabular Impingement (FAI). The topic has been called one
. Next the surgeon will cut across the pelvis slightly above the acetabulum. The bone graft will be inserted... off and sometimes in a separate operation. The pelvic osteotomy brings the whole acetabulum (socket) down... 
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Femoroacetabular impingement occurs when the femoral head and acetabulum rub abnormally, resulting in damage... junction, resulting in impingement against the acetabulum, particularly with flexion, internal rotation, or... 
on Day 2, Ron said something to the effect of (paraphrased):
“A superior acetabulum isn’t much different... overgrowth of the femoral head (cam), acetabulum (pincer), or both (mixed), as the graphic from Lavigne et al...
for their femurs as they sit in the acetabulum (or hip socket). To be classified as anteverted, the femoral head... within the acetabulum.
We get a positive Craig’s test when the hip rotation at the point of ideal femoral alignment... 
(the large thigh bone) where it connects to the hip socket (acetabulum). A metallic cap covers the femoral... inserted into the acetabulum.
Hip resurfacing may delay hip replacement
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. The ball portion is the head of the femur (thigh bone) while the socket (acetabulum) is located... to the acetabulum. Also, the joint capsule, which is a very strong band of connective tissue, encircles the two...
what I was told): the floor of my acetabulum is almost non existent. This sometimes happens after the surgery... on the other one. That popping I mentioned earlier? That was my femoral head popping out of my acetabulum... 
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