Does mild flexion of the femoral prosthesis in total knee arthroplasty result in better early postoperative outcomes?

Table 4 Comparison of KSS clinical score before and after surgery and between groups (\(\overline{\mathrm x}\) ± s)

	Anterior extension group	Mildly flexed group	Moderately flexed group	Excessively flexed group	F	P value
Number	21	41	32	19	-	-
Pre-op	35.95 ± 10.23	36.85 ± 11.78	40.25 ± 11.67	37.63 ± 14.37	0.702	0.553
2 weeks post-op	52.71 ± 12.24	55.83 ± 12.62	53.59 ± 12.99	53.47 ± 15.01	0.345	0.793
1 month post-op	62.43 ± 12.89	66.78 ± 10.03	63.78 ± 10.99	64.42 ± 12.19	0.829	0.480
3 months post-op	70.43 ± 9.94	77.56 ± 8.59^*	74.38 ± 10.03	73.26 ± 10.34	2.770	0.045
6 months post-op	78.38 ± 6.29	84.15 ± 6.43^*	81.78 ± 8.45	79.53 ± 9.03	3.355	0.022
1 year post-op	82.86 ± 6.33	89.29 ± 6.29^*	85.50 ± 7.15	83.74 ± 8.08	5.342	0.002
F	145.395	277.675	184.637	98.262	-	-
P value	0.000	0.000	0.000	0.000	-	-

KSS Knee society score
^* indicates statistically significant differences between two groups at the same time point (P < 0.05)
At 3 months postoperatively, ^*P = 0.006 compared to the anterior extension group
At 6 months postoperatively, ^*P = 0.005 compared to the anterior extension group and P = 0.029 compared to the excessive flexed group
At 1 year postoperatively, ^*P = 0.001 compared to the anterior extension group, P = 0.021 compared to moderately flexed group, and P = 0.004 compared to excessively flexed group

ISSN: 1471-2474