Fig. 1

Schematic of finite element model of the knee and loading: a knee, intact medial meniscus and three cases of partially resected medial meniscus; b ramp and creep loading protocol. The black area indicates the amount of medial meniscectomy with approximately 25, 50 or 75% resection in the three cases. The total medial meniscectomy was also modeled. F _c and F _d denote the compressive and drawer forces, respectively. The ramp compression force reached the maximum at 12 s, while drawer force was applied at 12 s and ramped in 1 s