For many people getting a total knee replacement, the surgeon must decide whether to resurface the kneecap or leave it alone. This single-center trial followed 250 knees for five years to see if covering the kneecap with an implant helped. The researchers tracked pain, function, and how well the knee moved for everyone involved. They also watched for problems like the kneecap slipping out of place or the implant loosening.
The results showed no meaningful difference between the two groups. Patients in both the resurfacing group and the non-resurfacing group reported similar levels of pain relief and function. Scores measuring how well patients felt their knees worked were nearly identical. Even the rate of needing another surgery for kneecap problems was similar, with a few extra procedures needed in the group that did not get the resurfacing.
This study supports a more selective approach. Surgeons should consider specific criteria before deciding to resurface the kneecap. The data suggests that leaving the kneecap alone is a safe option that provides the same long-term results as adding an implant. Patients can discuss these findings with their doctors to make the best choice for their specific situation.