Table 2.
Pooled clinical characteristics of patients who underwent frozen autograft reconstruction.
| Clinical characteristics | Number of patients or value | P |
|---|---|---|
| Gender | ||
| male | 27 (63%) | |
| female | 16 (37%) | |
| Age (year) | 22.6 ± 15.6 | |
| Histology | ||
| osteosarcoma | 30 (70%) | |
| Ewing sarcoma | 7 (16%) | |
| chondrosarcoma | 3 (7%) | |
| others | 3 (7%) | |
| Primary site | ||
| femur | 20 (46%) | |
| tibia | 14 (32%) | |
| humerus | 5 (12%) | |
| radius | 2 (5%) | |
| ilium | 2 (5%) | |
| Length of autograft (cm) | 16.9 ± 5.8 | |
| Whether the autograft contained articular surface of the knee joint | ||
| yes | 5 (12%) | |
| no | 38 (88%) | |
| Fixation with plate | 43 (100%) | |
| Average follow-up time (months) | 31 (range 10–61) | |
| Survival | ||
| yes | 27 (63%) | |
| no | 16 (37%) | |
| ISOLS score (%) | <0.001 | |
| patients with the autograft containing the knee joint surface | 28.2% ± 4.9% | |
| patients with the autograft not containing the knee joint surface | 80.6% ± 15% | |
| Bone healing time (months) | 0.0149 | |
| C site | 9.8 ± 6.3 | |
| F site | 14.9 ± 6.3 | |
| The site of Bone non-union | ||
| C site | 0 (0%) | |
| F site | 7 (100%) | |
| Complications | ||
| bone non-union | 7 | |
| joint deformity | 5 | |
| infection | 1 | |
| recurrence | 1 | |
| MSTS score (%) | <0.001 | |
| patients with the autograft containing the knee joint surface | 27.2% ± 4.4% | |
| patients with the autograft not containing the knee joint surface | 87% ± 11.6% | |
Data are presented as percentages (number events/total). ISOLS, International Society of Limb Salvage; C site, osteotomy site closer to the epiphysis; F site, osteotomy site far from the epiphysis; MSTS, Musculoskeletal Tumor Society.