How Does Partial Knee Replacement Compare to Other Treatments?
Injections and arthroscopy are temporary. UKA is the definitive answer for single-compartment arthritis.
Cortisone injections relieve pain for weeks to months but do not change the disease. Hyaluronic acid (gel) injections last longer in some patients but have similar limitations. They are useful for buying time, not for solving structural arthritis.
Knee arthroscopy ('keyhole surgery') has no role in established osteoarthritis — multiple large trials show it does not change outcomes. It still has a place for mechanical meniscal symptoms in younger knees without arthritis.
Total knee replacement is the right answer when arthritis affects more than one compartment, when ligaments are deficient, or when deformity is fixed. For single-compartment arthritis with intact ligaments, partial knee replacement is the definitive treatment with the best functional outcome.
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