Minimally invasive partial knee replacement
Replace only what's worn. Keep the knee that's still yours.
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Trevor is back to lifting, squatting, and living life after total knee arthroplasty (TKA) with Dr. Vasili Karas. After knee replacement surgery and dedicated rehab, Trevor was able to rebuild strength, improve mobility, and return to the gym with confidence. This is what recovery can look like with the right surgical care and commitment to physical therapy— getting back to the activities that matter most.
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The knee is not one joint but three compartments working together, and arthritis does not always attack all three. When wear is confined to a single compartment — a specific pattern we can identify on your imaging — replacing the entire knee treats a problem you do not have. A partial knee replacement resurfaces only the damaged compartment and leaves everything else exactly where nature put it: your healthy cartilage, far more of your own bone, and every one of your ligaments. Dr. Karas performs partial knee replacement using a bespoke, minimally invasive technique built around your anatomy rather than a generic average — the implant is planned to sit precisely where your own joint surface used to sit, through a smaller incision and with markedly less disruption to the surrounding soft tissue. What makes the operation work, however, is balance. In a partial knee every ligament remains, and every ligament must be tensioned correctly: too tight and the knee feels stiff, too loose and it feels unstable. When that tension is right, the knee moves through its own natural arc, because the structures controlling that motion are still yours and still doing their job. That is why a well-executed partial knee can feel remarkably natural, and why bone preservation never comes at the cost of performance — stairs, hills, the golf course, the floor with your grandchildren.
This operation is reserved for patients with the right pattern of arthritis, and identifying that pattern honestly is part of the care itself. It is one more way treatment in this practice is made highly specialized — matched precisely to your knee, rather than to the operation performed most often. It is what we believe patients need to be their most active selves, and it is the standard every patient in our practice receives.
Reach out today and let's start the conversation.