Reduction of in situ force through the meniscus with phased inner resection of medial meniscus: an experimental study in a porcine model

Journal of Experimental Orthopaedics

Table 1 Differences between pre and post osteotomy in in situ force of medial meniscus and tibiofemoral relationship at 60°of knee flexion (n = 5)

	Pre-osteotomy	Post-osteotomy	p-value*
In situ force under a 300-N axial load (N)	111.9 ± 10.6	108.4 ± 13.8	0.68
Tibial position (mm) and rotation (°) relative to femur
Medial(+)/Lateral(-)	2.8 ± 2.2	3.1 ± 3.2	0.46
Varus(+)/Valgus(-)	6.7 ± 2.0	7.0 ± 1.4	0.75
Anterior(+)/Posterior(-)	11.4 ± 7.2	10.4 ± 5.0	0.92
External(+)/Internal(-)	7.4 ± 3.2	9.3 ± 2.2	0.25

Tibial position relative to the femur at 30° of knee flexion was defined as a zero position while suppressing the other force/moment on the knee joint at zero.
*Statistical significance was tested by Mann-Whitney U test