Strength Testing Strength testing will be performed on all study participants. This will be done at follow-up visits at 6 months, 1 year and 2 years. These measurements will include peak torque and total work. A cybex dynamometer will be used to test isokinetic concentric plantar and dorsiflexion strength at 30, 90 and 240 degrees per second. All values will be compared to the opposite unaffected side. Scores will then be transformed into a percentage of the unaffected side and points awarded appropriately as per the outcome measure designed by Leppilahti et al.