Fig. 5

Lengthening at different tensile forces. Lengthening of MCL in mm for increasing tensile forces after puncturing was completed. Tensile strength at intrasubstance MCL failure was 527 N with an SD of 131 N, and 307.6 ± 70.2 N for pull-out failure. The lengthening is approximately linear up to 200N, as seen in the figure, but from 200N to failure the scale is not proportional and therefore cannot be used to assess linearity (Fig. 6)