Table 1.
Patient series, tumor data, histopathological resection results and clinical outcomes.
| Patient (gender (M/F), age (years)) | Histology1 | Enneking zones | Tumor size (mm) | Number of resection planes2 | Closest desired safe margins3 (mm) | Histological analysis | Neo and adjuvant treatment | Reconstruction | Complication | Follow-up (months) | Current status4 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 (F, 76) | CHS grade 2 | I + II | 200 | 1 (HER) | 10 | R0 | — | Hip transposition | Deep infection | 28 | DF |
| 2 (M, 54) | CHS grade 2 | I + II + III | 120 | 1 (HER) | 6 | R0 | — | Prosthesis | — | 19 | DF |
| 3 (M, 57) | CHS grade 2 | II | 140 | 3 | 10 | R0 | — | Prosthesis | — | 17 | DF |
| 4 (M, 65) | CHS grade 2 | II + III | 160 | 2 (HER) | 10 | R0 | — | Prosthesis | Deep infection | 16 | DF |
| 5 (F, 69) | LMS | I + II | 150 | 2 | 10 | R0∗ | Chemotherapy | Prosthesis | ST LR∗∗∗ | 22 | DF |
| 6 (M, 66) | CHS grade 2 | II | 140 | 3 (HER) | — | R0 | — | Prosthesis | Deep infection | 10 | DF |
| 7 (M, 60) | CHS grade 2 | I + II + III | 170 | 2 | 5 | R0 | — | Prosthesis | Deep infection; hip dislocation | 12 | DF |
| 8 (F, 27) | CHS grade 2 | IV | 60 | 4 | 7 | R2∗∗ | — | — | Scare desunion | 8 | DF |
| 9 (M, 46) | CHS grade 2 LR of myxoid | I + II | 270 | 1 | 3 | R0 | — | Prosthesis | Deep infection; hip dislocation | 7 | DF |
| 10 (M, 17) | ES | II + III | 100 | 3 | 10 | R0 | Chemotherapy; radiotherapy | Prosthesis | — | 4 | DF |
| 11 (M, 54) | Bone sarcoma | IV | 100 | 4 | 5 | R0 | Chemotherapy | — | — | 0 | DF |
1CHS = chondrosarcoma; LMS = leiomyosarcoma; ES = Ewing's sarcoma; LR = local recurrence.
2HER = hip extra-articular resection.
3See Table 2 for detailed data on bone-cutting accuracy.
4DF = alive disease-free.
∗R0 bone resection margin but R1 soft-tissue resection margin.
∗∗R2 bone resection margin because tumor has been morselized for extraction.
∗∗∗Soft-tissue local recurrence at 18 months; patient was reoperated on; now patient is free of disease.