Table 1 Results of univariable analysis of patient-, surgical-, and disease-related characteristics in predicting local recurrence of bone tumor after intralesional curettage
Variable | No local recurrence (n = 348) | Local recurrence (n = 63) | p value* |
|---|---|---|---|
Mean age (y) at baseline, mean ± SD | 37.1 ± 9.8 | 33.4 ± 11.1 | 0.002 |
Follow up duration (y), mean ± SD | 6.8 ± 1.0 | 6.8 ± 0.9 | 0.811 |
Sex, n (%) | |||
 Male | 194 (55.7) | 37 (58.7) | 0.681 |
 Female | 154 (44.3) | 26 (41.3) | |
Lesion size, n (%) | |||
  < 2 cm | 43 (12.3) | 5 (7.9) | 0.002 |
 2–5 cm | 168 (48.3) | 18 (28.6) | |
  > 5 cm | 137 (39.4) | 40 (63.5) | |
Tumor type, n (%) | |||
 Giant cell tumor of bone (GCTB) | 73 (21.0) | 23 (36.5) | 0.032 |
 Fibrous dysplasia (FD) | 84 (24.1) | 18 (28.6) | |
 Simple/Aneurysmal bone cyst (SBC/ABC) | 62 (17.8) | 9 (14.3) | |
 Cartilaginous tumor | 82 (23.6) | 6 (9.5) | |
 Chondroblastoma | 25 (7.2) | 5 (7.9) | |
 Other | 22 (6.3) | 2 (3.2) | |
Preoperative mean arterial pressure (pre-op MAP), n (%) | |||
  < 95 mmHg | 178 (51.1) | 25 (39.7) | 0.065 |
 95–110 mmHg | 143 (41.1) | 28 (44.4) | |
  > 110 mmHg | 27 (7.8) | 10 (15.9) | |
 Pathologic fracture, n (%) | 40 (11.5) | 6 (9.5) | 0.828 |
 Internal fixation, n (%) | 253 (72.7) | 50 (79.4) | 0.350 |
Anatomical site, n (%) | |||
 Distal femur and more distal locations | 145 (41.7) | 18 (28.6) | 0.027 |
 Proximal femur | 55 (15.8) | 14 (22.2) | |
 Distal humerus and more distal locations | 84 (24.1) | 11 (17.5) | |
 Proximal humerus | 43 (12.4) | 16 (25.4) | |
 Pelvis, scapula and clavicle | 21 (6.0) | 4 (6.3) | |
Previous recurrence, n (%) | 19 (5.5) | 5 (7.9) | 0.392 |
Reconstructive method, n (%) | |||
 Polymethylmethacrylate (PMMA) | 38 (10.9) | 9 (14.3) | 0.890 |
 Allograft | 217 (62.4) | 38 (60.3) | |
 Autograft | 56 (16.1) | 10 (15.9) | |
 Mixed graft (autograft + allograft) | 37 (10.6) | 6 (9.5) | |
ABC, n (%) | |||
 Presence | 61 (17.5) | 14 (22.2) | 0.375 |