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・ Knee Deep in Paradise
・ Knee Deep in the Blues
・ Knee Deep in the Hoopla
・ Knee Deep Records
・ Knee Defender
・ Knee effusion
・ Knee examination
・ Knee goniometer
・ Knee highs
・ Knee Knackering North Shore Trail Run
・ Knee Lake
・ Knee Lake Airport
・ Knee Lake Water Aerodrome
・ Knee pad
・ Knee pain
Knee replacement
・ Knee scooter
・ Knee splitter
・ Knee Surgery, Sports Traumatology, Arthroscopy
・ Knee taping
・ Knee wall
・ Knee Weakener
・ Knee-deep
・ Knee-high boot
・ Knee-Knock Rise
・ KNEE-LD
・ Knee-on-stomach
・ Kneeboard
・ Kneeboard (disambiguation)
・ Kneeboarding (surfsport)


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Knee replacement : ウィキペディア英語版
Knee replacement

Knee replacement, or knee arthroplasty, is a surgical procedure to replace the weight-bearing surfaces of the knee joint to relieve pain and disability. It is most commonly performed for osteoarthritis,〔">〕 and also for other knee diseases such as rheumatoid arthritis and psoriatic arthritis. In patients with severe deformity from advanced rheumatoid arthritis, trauma, or long-standing osteoarthritis, the surgery may be more complicated and carry higher risk. Osteoporosis does not typically cause knee pain, deformity, or inflammation and is not a reason to perform knee replacement.
Other major causes of debilitating pain include meniscus tears, cartilage defects, and ligament tears. Debilitating pain from osteoarthritis is much more common in the elderly.
Knee replacement surgery can be performed as a partial or a total knee replacement.〔
〕 In general, the surgery consists of replacing the diseased or damaged joint surfaces of the knee with metal and plastic components shaped to allow continued motion of the knee.
The operation typically involves substantial postoperative pain, and includes vigorous physical rehabilitation. The recovery period may be 6 weeks or longer and may involve the use of mobility aids (e.g. walking frames, canes, crutches) to enable the patient's return to preoperative mobility.
==Medical uses==

Knee replacement surgery is most commonly performed in people with advanced osteoarthritis and should be considered when conservative treatments have been exhausted. Total knee replacement is also an option to correct significant knee joint or bone trauma in young patients. Similarly, total knee replacement can be performed to correct mild valgus or varus deformity. Serious valgus or varus deformity should be corrected by osteotomy. Physical therapy has been shown to improve function and may delay or prevent the need for knee replacement. Pain is often noted when performing physical activities requiring a wide range of motion in the knee joint.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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