Fig. 3From: Implant design affects walking and stair navigation after total knee arthroplasty: a double-blinded randomised controlled trialAverage (solid lines) knee flexion ±2 standard deviations (shaded bands) for the pre-operative (in red), post-operative (in blue) and control (max/min in black; no average shown) groups. Toe off occurrences (% gait cycle) are indicated by vertical solid linesBack to article page