Table 1 Comparison of the data between the prosthesis and inactivated autograft group
| Â | Â | Prosthesis group | Inactivated autograft group | p value |
|---|---|---|---|---|
Number of patients | Â | 13 | 10 | Â |
Sex | Male | 7 | 5 | Χ2 = 0.034, p = 1.000 |
| Â | Female | 6 | 5 | Â |
Age |  | 26.3 years ± 12.9 years | 18.74 years ± 9.6 years | Z =  − 1.833, p = 0.067 |
Disease classification | Classic osteosarcoma | 8 | 7 | Χ2 = 4.756, p = 0.446 |
| Â | Chondrosarcoma | 3 | 1 | Â |
| Â | Undifferentiated high-grade pleomorphic sarcoma | 1 | 0 | Â |
| Â | Spindle cell sarcoma | 1 | 0 | Â |
| Â | High-grade surface osteosarcoma | 0 | 1 | Â |
| Â | Ewing sarcoma | 0 | 1 | Â |
Length of resected bone |  | 188.8 ± 73.6 mm | 193.8 ± 55.6 mm | Z =  − 0.310, p = 0.756 |
Distance between the resected bone on the articular side and the knee joint |  | 25.1 ± 4.4 mm | 22.9 ± 7.8 mm | Z =  − 0.347, p = 0.729 |
Duration of operation |  | 258.5 ± 54.7 min | 400.0 ± 93.4 min | Z =  − 3.578, p < 0.001 |
Volume of intraoperative bleeding |  | 634.6 ± 296.8 mL | 660.0 ± 298.9 mL | Z =  − 0.190, p = 0.850 |