The hip labrum is a ring of cartilage that surrounds the socket of the ball-and-socket hip joint. Often likened to a meniscus tear of the knee joint, a hip labrum tear may be a source of pain and discomfort in the hip joint.
Irritable hip results from hip joint inflammation. It is a common cause of hip pain and limping in children aged 10 years or younger.
A tear to the medial collateral ligament in the knee can cause pain, swelling, and a lack of stability in the knee. Treatment is usually with ice, a knee brace, and physical therapy. Surgery may be necessary in rare cases.
University of Kansas researcher Jenny Robinson is studying how estrogen may protect the menisci, the crescent-shaped pieces of fibrocartilage that absorb shock between the thighbone and shinbone.
For hockey great Bobby Orr, a torn knee ligament ended his career at age 30. Orr had more than 17 knee operations, at one point having his meniscus removed—the cartilaginous tissue that helps stabilize and lubricate the knee joint. Now scientists can see in real time just how important the meniscus is.