ABSTRACT
This retrospective study compared the results of patellar resurfacing versus no resurfacing
in 121 patients (142 knees) who underwent Scorpio total knee arthroplasty (TKA) between
January 2002 and September 2004. Mean follow-up was 33 months in the nonresurfaced
group and 18 months in the resurfaced group. The 2 groups were similar in age and
gender. The incidence of anterior knee pain was 25% in the nonresurfaced group compared
to 7% in the resurfaced group (P=0.05), and the rate of revision was 10% in the nonresurfaced group compared to zero
in the resurfaced group (P=0.013). Mean Euroquol score was 91 in the nonresurfaced group compared to 95 in the
resurfaced group (P=0.26). Euroquol score, Knee Society score, knee instability, return to preoperative
functional level, ability to kneel, use of a walking aid, and presence of limp were
not significantly different between the 2 groups. The results of this study suggest
a more consistent outcome can be achieved with patellar resurfacing in TKA with the
Scorpio prosthesis.
