Higher rates of fully preserved posterior cruciate ligament in total knee arthroplasty using a double tibial cut: a prospective randomized controlled trial

Table 4 Hip-Knee-Ankle (HKA) angle and femoral rollback at 90° and 120°

Variables	Group 1 (25)	Group 2 (25)	Group 3 (25)	p value
HKA angle	182.2° ± 3.4	181.7° ± 3.6	183.1° ± 2.9	n.s
Femoral rollback at 90°
FPP**	46.2 ± 7.4	41.8 ± 6.5	43.3 ± 7	0.01^/ 0.07^§/0.4^*
SDFT^^	65 ± 7.7	59 ± 6.6	62 ± 4.6	0.006^/0.09^§ /0.05^*
Femoral rollback at 120°
FPP	79.5 ± 9.3	70.9 ± 5.8	74.1 ± 5.6	0.0009^/0.01^§/0.05^*
SDFT	80.7 ± 8.5	71.3 ± 6.7	74.6 ± 3.8	0.0003^/0.01^§/0.01^*

^**Femoral Peg Projection; ^^Shortest Distance between Femoral and Tibial components. Values of posterior femoral translation are expressed as % of the sagittal diameter of the tibial component Difference (p value) between ^group 1 and 2; ^§ gr 1 and 3; ^* group 2 and 3

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