To assess the effect of non-patellar resurfacing in M/G TKA, 14 knees were evaluated in 13 patients (OA, 9 knees; RA, 5 knees). The average of follow-up periods was 11.5 months ranging from 2 months to 44 months.
All patients had no complaints around the patella postoperatively. Postoperative skyline view roentgenograms showed lateral protrusion of the patella in all patients. It was considered that these protrusions were resulted from small femoral components compared to the patella.
Partial destruction of the patella may occur in the case of severe lateral protrusion. In the case of non-patellar resurfacing, it is important to examine not only the soft tissue balance around the patella but the congruity of shape and size between patellar and femoral component. If good conguruity is not obtained, the patella should be resurfaced.
