Figure 5
Knee extension deficit (°) (mean value ± SD) between involved and non-involved knee pre- and postoperative 6 weeks follow up (4 = 11-15°, 3 = 6-10°, 2 = 3-5°, 1 = <3° / preop. = preoperative, 1., 2., 4., and 6. pop. W. = 1., 2., 4., and 6. postoperative week).