Early clinical outcome and learning curve following unilateral primary total knee arthroplasty after introduction of a novel total knee arthroplasty system

Figure 2 Initial learning curve effect on operation duration in the first 25 novel total knee arthroplasties. The box represents the interquartile (IQ) range. Median indicated by line across the box; The whiskers are no greater than 1.5 times the IQ range; Outliers are cases with values between 1.5 and 3 times the IQ range depicted by circles.