Table 2.

WOMAC index.

Variables	Drain (n = 61)	No drain (n = 59)	t-value	p value
Pre-Op	12.3623 ± 4.0016	13.0017 ± 4.3021	0.8418	0.4016
Two weeks	30.1721 ± 5.1560	30.1814 ± 5.1047	0.0096	0.9924
Six months	52.1593 ± 7.3826	52.8770 ± 9.9231	0.4485	0.6547
One year	83.6443 ± 8.7956	83.8966 ± 8.4728	0.1599	0.8733