Table 2. The demographical and clinical characteristics in patients with primary GCTB around the knee by local recurrence.
| Categories | Recurrence | No-Recurrence | P |
|---|---|---|---|
| Total, n (%) | 71 (23.4) | 233 (76.6) | — |
| Age, years, mean (SD) | 32.68 (12.04) | 36.36 (13.65) | 0.042 |
| Gender, n (%) | 0.294 | ||
| Men | 41 (25.8) | 118 (74.2) | |
| Women | 30 (20.7) | 115 (79.3) | |
| Age group, n (%) | 0.039 | ||
| <20 years | 4 (14.3) | 24 (85.7) | |
| 20–39 years | 51 (28.5) | 128 (71.5) | |
| ≥40 years | 16 (16.5) | 81 (83.5) | |
| Side, n (%) | 0.378 | ||
| Left Knee | 35 (25.7) | 101 (74.3) | |
| Right Knee | 36 (21.4) | 132 (78.6) | |
| Location, n (%) | 0.609 | ||
| Distal femur | 34 (21.8) | 122 (78.2) | |
| Proximal tibia | 35 (26.1) | 99 (73.9) | |
| Proximal fibular | 2 (18.2) | 9 (81.8) | |
| Patella | 0 | 3 (100.0) | |
| Campanacci grade, n (%) | 0.475 | ||
| I | 8 (33.3) | 16 (66.7) | |
| II | 25 (23.1) | 83 (76.9) | |
| III | 38 (22.1) | 134 (77.9) | |
| Pathologic fracture, n (%) | 0.217 | ||
| No | 44 (26.0) | 125 (74.0) | |
| Yes | 27 (20.2) | 108 (80.0) | |
| Surgical approach, n (%) | <0.0001 | ||
| Intralesional curettage | 31 (53.4) | 27 (46.6) | |
| Curettage combined with resection | 34 (27.6) | 89 (72.4) | |
| En bloc marginal resection | 6 (4.9) | 117 (95.1) | |
| PMMA, n (%) | 0.516 | ||
| Yes | 18 (40.9) | 26 (59.1) | |
| No | 45 (35.4) | 82 (64.6) |
PMMA indicated polymethylmethacrylate.