Fig. 3From: A modified and enhanced test setup for biomechanical investigations of the hindfoot, for example in tibiotalocalcaneal arthrodesisa Modification of the load application by adding a ball-bearing rail guide (sledge) at the suspension to exclude shear stress and to apply loads with a constant lever arm; b Shift of the load entry point to the tuber of the calcaneus to simulate physiological conditions. In contrast Klos et al. [7, 8] applied the load in extension of the tibia shaft axisBack to article page