The hip is the largest ball-and-socket joint in the body. The thighbone (femur) fits tightly into a cup-shaped socket (acetabulum) in the pelvis. The hip joint is held together by muscles of the buttocks, groin, and spine; tendons; ligaments; and a joint capsule.
| By | Healthwise Staff |
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| Primary Medical Reviewer | William H. Blahd, Jr., MD, FACEP - Emergency Medicine |
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| Specialist Medical Reviewer | H. Michael O'Connor, MD - Emergency Medicine |
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| Last Revised | August 2, 2012 |
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