Abstract Summary
The influence of subtalar arthrodesis on the anteroposterior stiffness and laxity of the talocrural joint was studied in vitro. Six fresh-frozen ankle specimens with soft tissues removed following standard specimen preparation procedure were tested by a robot-based joint testing system (RJTS) which was an industrial 6 degree-of-freedom (DOF) robot with a 6-component load-cell attached at the effector. The results showed that subtalar arthrodesis did not change the stiffness and laxity in both anterior and posterior directions (p > 0.05). The current study provides a base to evaluate the effects of subtalar arthrodesis on ankle stability.
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