Table 1.

Comparison between patellar resurfaced and unresurfaced total knee arthroplasty (P value > 0.05 for all items)

	Patella resurfaced	Patella not resurfaced	P value
Total HSS	85.9 (95% CI 83.8–88.1)	81.7 (95% CI 78.6–84.9)	0.1053
Pain	24.2 (95% CI 22.6–25.9)	26.7 (95% CI 25.7–27.8)	0.0636
ROM	106.3° (95% CI 102.7°–110.1°)	109.1 (95% CI 106.4°–111.7°)	0.0647
Functionality	17.8 (95% CI 16.8–18.8)	16.8 (95% CI 15.6–18.1)	0.5911
Quadriceps force	9.4 (95% CI 9.2–9.6)	9.1 (95% CI 8.7–9.4)	0.3646
Flexion deformity	9.9 (95% CI 9.8–9.9)	9.8 (95% CI 9.6–9.9)	0.3699
Instability	9.5 (95% CI 9.3–9.7)	9.4 (95% CI 9.1–9.6)	0.0699

CIconfidence interval