Table 1.
Parameters | Group 1 | Group 2 |
---|---|---|
Male/female | 29/12 | 25/17 |
Mean age (years) | 20.7 ± 11.1 | 19.9 ± 9.3 |
Children | 15 | 14 |
Adults 18–40 years old | 21 | 20 |
Adults older than 40 years | 5 | 8 |
Defect origin | ||
Injuries including consequences | 21 | 17 |
Haematogenous osteomyelitis | 4 | 25 |
Congenital | 9 | – |
Tumour resection | 7 | – |
Mean anatomical shortening (cm) | 6.6 ± 0.7 | 4.6 ± 2.8 |
Bone defect | 13.1 ± 0.9 | 12.5 ± 1.2 |
Fragment ends shape, congruent/incongruent | 7/34 | 13/29 |
Contractures | ||
Knee joint | 7 | 14 |
Ankle joint | 3 | 9 |
Both joints | 34 | 6 |
Ankle ankylosis | 4 | 13 |
Knee ankylosis | – | 1 |
Weight-bearing | 0 | 0 |
Condition duration (years) | 5.8 ± 1.9 | 11.8 ± 8.4 |
Number of metaphyseal osteotomiesa | 55 | |
Number of diaphyseal osteotomies | 31 | 84 |
Total treatment time with the frame on (days) | 288.0 ± 14.4 | 316.0 ± 29.7 |
Mean gradual bone transport (days) | 97.7 ± 5.9 | 98.1 ± 14.0 |
Distraction for tibial fragment separation/correction (days) | – | 84.7 ± 22.7 |
Tibiofibular synostosis (days) | – | 88.6 ± 14.7 |
Mean fixation time (days) | 170.3 ± 12.4 | 166.3 ± 22.7 |
Bone defect filling (cm) | 11.4 ± 0.8 | 12.5 ± 1.2 |
Restoration of lower leg length (%) | 88.4 ± 2.4 | 64.3 ± 1.1 |
Cases of residual anatomical leg discrepancy (≥ 3 cm) | 4 | 19 |
Contractures at follow-ups | ||
Knee joint | – | 7 |
Ankle joint | 3 | 4 |
Both joints | – | |
Foot equinus | – | 3 |
Ankle ankylosis | 4 | 13 |
Knee ankylosis | – | – |
Weight-bearing | 41 | 42 |
a Group I—tibial metaphysis; group II—fibular metaphysis