Statistical analyses revealed no significant difference pre- and postoperatively in maximum flexion angle, but significant improvements were observed postoperatively in maximum extension angle (p = 0. 001), ROM (p = 0.04), knee score (p < 0.0001), function score (p < 0.0001), and FTA (p < 0.0001).
The thickness of the femoral condylar cartilage was measured in the medial and lateral condyles and in the notch, with the knee in maximum flexion.
The average internal tibial rotation in midflexed lunge was 5.5° (−3.8° to 14.1°) and in maximum flexion kneeling was 4.0° (−3.1° to 10.6°).
Using the compression/distraction unit of the fixator, the fixator was locked at night in maximum flexion and extension alternately.
After repair of the extensor mechanism, resultant quadriceps tension and restriction of flexion were counteracted upon with the use of CPM and repeated bi-weekly brace adjustments in maximum flexion.
The surgery was performed using a lateral parapatellar approach, medial dislocation of the patella and, with the knee in maximum flexion, anterior cruciate ligament and medial meniscus visualization and section.
This measure, describing the maximum flexion and extension movements in a joint from a neutral angle used for primary assessment, for describing the disease course and for estimating the efficacy of treatment.
As per our previously described protocols, all rabbits had their right knees operated to create 3 mm defects in the non-cartilaginous portions of the femoral condyles, with hyperextension of the joint performed to disrupt the posterior capsule and immobilisation in maximum flexion with a Kirschner (K -wire for eight weeK -wire. 1).
There was a significant increase in AP translation of femoral lateral condyle in the maximum flexion kneeling between 12 months and the two other intervals (p = 0.0003 at 3 months and p = 0.016 at 6 months), while no differences in those of medial condyle between all intervals.
