Intact, pie-crusting and repairing the posterior cruciate ligament in posterior cruciate ligament-retaining total knee arthroplasty: A 5-year follow-up

Table 1 Range of motion and the Knee Society Clinical Rating system scores of the included patients

	ROM (°)	KSS clinical scores	KSS functional scores
Before surgery	103.2 ± 17.2	47.6 ± 9.5	46.3 ± 11.9
Follow-up	117.5 ± 9.7	89.2 ± 3.6	84.6 ± 9.8
P value	0.00	0.00	0.00

The data are presented as mean ± SD. ROM: Range of motion; KSS: The Knee Society Clinical Rating system.

Table 2 Clinical outcomes according to the posterior cruciate ligament treatment group

	ROM (°)	KSS clinical scores	KSS functional scores
Intact PCL	118.0 ± 8.3	89.1 ± 3.7	84.9 ± 9.6
Pie-crusting	114.0 ± 13.5	88.8 ± 3.4	83.8 ± 10.5
Repairing	120.3 ± 7.0	89.0 ± 3.6	89.4 ± 4.5
P value	> 0.05	> 0.05	> 0.05

The data are presented as mean ± SD. PCL: Posterior cruciate ligament; ROM: Range of motion; KSS: The Knee Society Clinical Rating system.