Partial Knee Replacement (Unicompartmental)
What is this procedure?
Surgical replacement of only the damaged compartment of the knee joint with prosthetic components, preserving healthy bone, cartilage, and ligaments in unaffected compartments. Used for isolated medial or lateral compartment osteoarthritis with intact ligaments and limited deformity.
Does this require prior authorization?
Medical Necessity Tips
What clinical evidence supports approval
- Document isolated single-compartment arthritis on imaging
- Failed conservative treatment: PT, injections, bracing, weight loss
- Intact cruciate ligaments required for unicompartmental approach
- BMI considerations may affect surgical candidacy per insurer guidelines
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What to Do If Denied
If your partial knee replacement (unicompartmental) is denied, you have the right to appeal. Most denials are overturned on appeal when proper documentation is provided.
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