Recurrent subluxation or lateral instability of knee | 635 | 63.5 | 459 | 65.38 |
Impairment of femur* | 188 | 18.8 | 129 | 18.38 |
Impairment of tibia and fibula† | 116 | 11.6 | 71 | 10.11 |
Removal of semilunar cartilage | 44 | 4.40 | 32 | 4.56 |
Genu recurvatum | 6 | 0.60 | 3 | 0.43 |
Dislocation of semilunar cartilage | 7 | 0.70 | 1 | 0.14 |
Knee replacement | 1 | 0.10 | 1 | 0.14 |
Thigh amputation | 1 | 0.10 | 0 | 0.00 |
Ankylosis of knee | 0 | 0.00 | 0 | 0.00 |
Amputation with loss of extrinsic pelvic girdle muscles | 0 | 0.00 | 0 | 0.00 |
Amputation 1/3 of the distance from the perineum to the knee | 2 | 0.20 | 2 | 0.28 |
Total | 1000 | 100 | 702 | 100 |