What is femoroacetabular impingement (FAI)?

What is femoroacetabular impingement (FAI)?

In my last post, I talked about how I managed to tear my hip cartilage while playing tennis; and I mentioned that a common cause of cartilage tears is femoroacetabular impingement, or FAI. Although the concept of hip impingement was first recorded in 1936, it wasn’t...