6 | CMH-OHSU Health Orthopedic Clinic What will happen during surgery? Hip replacement The hip joint connects the upper end of your Ⓐ thigh bone (femur) to the Ⓑ hip (pelvis). A Ⓒ “ball joint” on the end of your femur fits into the socket of the hip. Both ends are covered in cartilage (a smooth lining that protects the joint). When the cartilage in your hip wears out, the bones can rub together, causing hip pain. During hip replacement surgery, the worn-out or damaged cartilage is removed from the hip joint and upper thigh bone and replaced with artificial parts. This restores the smooth surface of your hip joint and helps it move without pain. Knee replacement Your knee joint is made up of: • The lower end of the Ⓐ thigh bone (femur) • The top of the Ⓓ shin bone (tibia) • The Ⓔ knee cap • Cartilage (a smooth lining that protects the joint) When cartilage wears out, the bones rub against each other and can cause pain in your knee. During total knee replacement surgery, the worn-out or damaged cartilage is removed and replaced with metal and plastic parts. This restores the smooth surface of your knee joint and helps it move without pain. Ⓐ Ⓑ Ⓒ Ⓐ Ⓓ Ⓔ
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