Table 9.

Measurement results grouped by preoperative Kellgren and Lawrence grade.

	Pre op. KL grade
	1 and 2	3 and 4
	Group A/Group B [R/L] Mean (SD)	Group A/group B [R/L] Mean (SD)
Pre op. HKA	10.770(1.8)/[10.10(0.97)/14.30(1.8)]	10.40(1.9)/[10.60(2.3)/15.00(2.4)]
Post op. HKA	−5.250(1.3)/[-5.50(1.2)/-5.70(1.2)]	−5.00(1.97)/-[5.50(2.3)/-5.40(1.6)]
Change in alignment	−16.020(2.4)/[-15.60(1.7)/-19.70(1.9)]	−15.50(3.17)/[-16.10(3.2)/-22.50(8.8)]
Lengthening,(cm)	0.62(0.5)/0.69(0.4)	1.33(1.6)/0.77(1.7)
P value	0.942/0.919	0.819/0.875