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Hip internal rotation is the twisting movement of your thigh inward from your hip joint. If you try this while standing, your foot should also turn so that your toes are pointing toward the rest of your body.

Hip pain is common. Many cases of outer hip pain can be treated at home, but some cases need a doctor s care.

Hip extension means you re opening, or lengthening, the front of your hip.

Researchers of Valencia's Polytechnic University (UPV), the University of Notre Dame (USA) and the Technological University of Auckland (New Zealand), along with multinational company Zimmer, have developed a new material that improves the quality and durability of the articular cartilage im...

Faced with both exciting new research and dangerous hype about such treatments as platelet-rich plasma and stem cells for osteoarthritis of the knee, I've begun to adopt what I call the Orthobiological Surgeon's Prayer:

ORLANDO  Lateral unicompartmental knee replacement, when used in patients who meet certain key indications, such as having isolated lateral bone-on-b...

Zhaoli Dai, Ph.D., from the Boston University School of Medicine, and colleagues used data from the Osteoarthritis Initiative (OAI) and the Framingham Offspring Osteoarthritis Study to assess how BMI and inflammation might impact the observed association between greater fiber intake and the lower ri...

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 re...

A knee sprain refers to torn or overstretched ligaments, the tissues that hold bones together. If you have a sprained knee, the structures within the knee joint that connect the thigh bone to the shin bone have been injured.

A lateral collateral ligament sprain occurs when the ligament on the outer side of the knee tears. This type of sprain is most common in people who play contact sports, such as football.