Fig. 4From: Implant design affects walking and stair navigation after total knee arthroplasty: a double-blinded randomised controlled trialAverage (solid lines) knee moments in walking and ±2 standard deviations (shaded bands) for the pre-operative (in red), post-operative (in blue) and control (black; no average shown) groups. Foot off occurrences (% gait cycle) are indicated by vertical solid linesBack to article page