Partial Knee Replacement
Important Notice: Dr. Greg Jaroszynski does not perform partial knee replacements at this time. This information is provided for educational purposes only.
Partial knee replacement replaces only the worn compartment of the knee rather than replacing the entire joint. It is an option for selected patients whose arthritis is limited mainly to one compartment.
Key idea
- Knee arthritis typically affects the medial compartment most severely.
- Partial knee prosthesis replaces only one worn compartment of the knee.
Why it may be considered
Osteoarthritis (OA) is a condition caused by thinning and eventual loss of joint surface cartilage. In many patients with knee OA, the medial compartment is affected most severely. The other two compartments may initially have little or no arthritis, although all compartments can eventually become involved.
Partial knee replacement is aimed at replacing the worn surface of only one compartment. Since the medial compartment is most commonly involved, partial replacement is usually performed on the medial side of the knee.
