The Oxford® Partial Knee ReplacementRemember when simple routine tasks were something you took for granted?
If knee pain is changing your lifestyle, then you need to know this: The new concept in joint replacement surgery is to only replace the worn out portion of the arthritic joint. A large number of people with osteoarthritis of the knee have worn out only one of the three compartments in the knee. If this is the case, the individual may only require a partial replacement. The Oxford® Partial Knee Replacement is the first implant that can accomplish this task with proven long term results of 95% at 15 years and beyond.1. For this reason the Oxford® makes a whole or total knee joint replacement NOT necessary in many cases.
The xray in the middle photograph below represents bone on bone osteoarthritis. This occurs due to degeneration or "wear and tear" of the articular cartilage, and degeneration or surgical removal of the meniscus. Once this situation develops, the individual usually has severe pain. An Oxford is perfect for this situation. The xray photograph on the right demonstrates the appearance after an Oxford has been placed. One can see that the bone on bone rubbing condition has replaced by the Oxford with it's meniscus replacement bearing (the white horizontal line between the metal). The model in the left photograph portrays how the implant actually sits between the bones and cruciate ligaments (white ropes in the middle of the knee) and the medial collateral ligament (white rope one the right side of the knee). A total knee replacement is not necessary for this situation.
The Oxford® Unicompartmental Knee System offers these advantages:
The Oxford® Partial Knee Replacement prosthesis allows for better range of motion of the knee by virtue of replication of the function of the menisci and allows for more normal motion of the human knee. With the Oxford partial knee replacement, only a portion of the knee is replaced. In performing an Oxford, the anterior cruciate and posterior cruciate ligaments are always preserved. In performing a total knee replacement, the anterior cruciate ligament is always removed; sometimes the posterior cruciate ligament is removed as well. In some cases, this prosthesis may be applicable to individuals who were previously considered too young to undergo a total knee replacement. The Oxford® implant utilizes a minimally invasive procedure in which patients may experience less pain and a quicker recovery time than experienced with a total knee replacement.
The picture above shows the typical "bowleg" deformity that develops when a person gets severe osteoarthritis of the inner portion of the knee. This occurs because when the inside of the knee wears out, the pad, or articular cartilage that wears away may have been as thick as one-half inch before the arthritis began. With this tissue now worn away, the inside of the knee is shorter, so a bowlegged appearance develops. The Oxford corrects the bowleg deformity because the Oxford gives the patient a new pad with the height of the inside portion of the knee restored to the pre-arthritic state. The picture below shows the bowleg deformity corrected. Go to the "Oxford Testimonial" button above and read this man's story (D.L from Kerrville, Texas).
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