Ms. (Dr.) Samantha Tross
Consultant Orthopaedic and Trauma Surgeon
First Black Female Orthopaedic Consultant in the UK
When knee arthritis becomes severe, patients are often told they may need either a partial or a total knee replacement. Understanding the difference — and which option is right for you — can make the decision much clearer.
A partial knee replacement (also called unicompartmental replacement) is used when arthritis affects only one part of the knee. The benefit is that the surgeon preserves more of your natural bone, ligaments, and overall joint structure. This often leads to a faster recovery, a more natural-feeling knee, and less post-operative discomfort. With modern imaging and 2025 surgical techniques, surgeons can accurately identify suitable candidates and deliver extremely precise results.
A total knee replacement is recommended when arthritis affects multiple areas of the knee. In this procedure, all the damaged surfaces are replaced with smooth, durable components that restore stability and alignment. Although recovery may take slightly longer, the long-term benefits are excellent — predictable pain relief, strong mobility, and decades of reliable performance.
Choosing the right option depends on several factors: the location and extent of your arthritis, your activity levels, knee alignment, and your overall health. X-rays and clinical assessment guide the decision.
In the end, the goal is the same for both procedures: a comfortable, stable knee that allows you to return to everyday life without persistent pain. The right choice is the one that gives you the best long-term outcome.