Change in gait biomechanics after total ankle replacement and ankle arthrodesis: a systematic review and meta-analysis

•Moderate evidence to suggest that lower extremity biomechanics improved after total ankle replacement.•Moderate evidence to suggest that total ankle replacement improves pre-operative ankle range of motion by 3°.•No difference in outcomes between fixed- versus mobile-bearing prosthesis•Ankle moment, hip range of motion and walking speed increased after ankle arthrodesis.