Pressure changes on the ankle articular surface after low tibia osteotomy with and without fibular osteotomy: a finite element study

It is uncertain whether low tibia osteotomy(LTO) with fibular osteotomy(FO) is more effective for the translation of concentrated pressure on medial malleolus than LTO without FO. This study quantitatively analyzes the peak pressure changes on the medial malleolus after LTO with and without FO using finite element analysis. The results showed a 6% and 1% difference in peak pressures measured on the medial talar and medial tibial surfaces respectively, concluding that LTO alone can be effective in relieving pressure in the medial malleolus during treatment of varus ankle deformity.