Fig. 4

Mean joint line approximation and absolute error for each segment. TT: Tibial tuberosity. Top line: Y-axis depicts average JL approximation for each specimen and each segment in mm (bold: average, dotted: standard deviation). Bottom line: Y-axis depicts mean absolute JL error (line), IQR (box), range (whiskers) and outliers (points). Asterisks depict significant differences of mean absolute JL errors between segments (p = 0.03) after Bonferroni correction