Overview
About Partial Knee Replacement
In a partial (unicompartmental) knee replacement, only the damaged section of the knee joint is resurfaced. This bone-conserving procedure results in a more natural-feeling knee, faster recovery, less blood loss, and a smaller incision compared to total knee replacement. It is ideal for patients with arthritis confined to one compartment and intact cruciate ligaments.
Key Benefits
Preserves healthy bone, cartilage, and ligaments of the knee
Smaller incision and faster recovery compared to total knee replacement
More natural knee feel during movement and activity
Less blood loss and lower risk of complications
Can be converted to total knee replacement in future if needed
Frequently Asked Questions
Am I a candidate for partial knee replacement?
Ideal candidates have arthritis limited to one compartment (usually medial/inner), intact ACL and PCL ligaments, and no inflammatory arthritis. Your surgeon will assess your X-rays and MRI.
Is partial knee replacement better than total?
For the right patient, partial replacement offers advantages: faster recovery, more natural feel, and less surgery. However, if arthritis is widespread, total replacement gives better results.
How long does recovery take?
Most patients walk within 24 hours and return to daily activities in 4–6 weeks — faster than total knee replacement.
Can partial knee replacement fail?
Yes — arthritis can progress to other compartments over time. If this happens, the partial implant can be revised to a total knee replacement.
Is partial knee replacement done under general anaesthesia?
Usually spinal anaesthesia is preferred. General anaesthesia is an option depending on patient preference and medical condition.