Benefits of Unicondylar Knee Replacement (UKR):
Preservation of Healthy Tissue: UKR preserves more healthy bone and soft tissue compared to TKR since it only replaces the damaged portion of the knee joint. This can be advantageous for younger or more active patients who may require future revision surgeries.
Smaller Incision and Less Trauma: UKR generally requires a smaller incision, resulting in less soft tissue trauma, reduced blood loss, and potentially faster recovery compared to TKR.
Quicker Recovery and Rehabilitation: Patients who undergo UKR typically experience a faster recovery and rehabilitation process compared to TKR. They may regain knee function more rapidly and have a shorter hospital stay.
More Natural Knee Motion: UKR can offer a more natural knee motion because it preserves the ligaments and a larger portion of the native joint. Some patients report a more natural feel and improved proprioception with UKR.
Disadvantages of Unicondylar Knee Replacement (UKR):
Risk of Progression: There is a risk that the damage may progress to other compartments of the knee over time, potentially requiring revision surgery to convert to a TKR. This is usually occurs in 10% of patients at 15-20 years.
Comprehensive Treatment: TKR provides a comprehensive solution for patients with widespread knee joint damage, addressing multiple compartments simultaneously. It can effectively relieve pain, correct deformities, and restore joint function.
Long-Term Durability: TKR has a long-established track record of success and durability, with most patients experiencing significant pain relief and improved function for 15-20 years or more.
Disadvantages of Total Knee Replacement (TKR):
More Invasive Procedure: TKR involves more extensive bone resection and soft tissue dissection compared to UKR. This can result in a larger incision, more significant tissue trauma, increased blood loss, and potentially longer recovery time.
Higher Revision Rates: TKR has slightly higher revision rates compared to UKR, especially in younger and more active patients. Revision surgeries are typically more complex and associated with increased risks and a longer recovery period.
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