Fig. 1

The mean preoperative and final follow-up clinical values are shown as bar graphs and the gap between the two values is the improvement value. The error bars indicate standard deviation. AOS, Ankle Osteoarthritis Scale; AOFAS, American Orthopaedic Foot and Ankle Society; SF-36 PCS, Short Form-36 Physical Component Summary; VAS, visual analog scale. *Significant differences in SF-36 PCS scores between the two groups at the final follow-up