Table 6.

Stratification according to preoperative quadriceps strength.

MRCscale	Medial Parapatellar	Subvastus	N	Mean days SLR	Std. Deviation	Std. Error Mean	P value
IV	12	10	22	3.4545	0.67098	0.14305	0.000
V	26	28	54	2.5370	0.60541	0.08239