Preoperative variable of patients with infected spinal fusions in the implant retention and removal groups
| Variable | Group, no. (%)* | p value | ||
|---|---|---|---|---|
| All patients n = 35 | Implant retention n = 14 | Implant removal n = 21 | ||
| Sex | ||||
| Male | 12 (34.3) | 7 (50) | 5 (23.8) | 0.11 |
| Female | 23 (65.7) | 7 (50) | 16 (76.2) | |
| Age, yr | 15.1 ± 6.0 | 16.8 ± 8.4 | 14.0 ± 3.6 | 0.20 |
| Follow-up, mean ± SD mo | 41.7 ± 26.9 | 39.0 ± 26.9 | 43.5 ± 27.4 | 0.63 |
| Weight, mean ± SD kg | 50.7 ± 22.7 | 51.0 ± 28.3 | 50.5 ± 18.8 | 0.96 |
| Diagnosis | 0.11 | |||
| Idiopathic | 17 (48.9) | 4 (28.6) | 13 (61.9) | |
| Neuromuscular | 11 (31.4) | 7 (50.0) | 4 (19.1) | |
| Congenital/other | 7 (20.0) | 3 (21.4) | 4 (19.1) | |
| Neurologic motor level | 0.019 | |||
| Thoracic | 9 (25.7) | 6 (42.9) | 3 (14.3) | |
| Lumbar/sacral | 2 (5.7) | 2 (14.3) | 0 (0) | |
| Nil | 24 (68.6) | 6 (42.9) | 18 (85.7) | |
| Primary Cobb angle, mean ± SD | 63.6 ± 14.5 | 61.7 ± 17.3 | 64.8 ± 12.5 | 0.54 |
| SRS curve | 0.77 | |||
| Thoracic | 18 (52.9) | 8 (57.1) | 10 (50.0) | |
| Thoracolumbar | 12 (35.3) | 4 (28.6) | 8 (40.0) | |
| Lumbar | 4 (11.8) | 2 (14.3) | 2 (10.0) | |
| Previous surgery | 0.22 | |||
| Nonspinal surgeries | 11 (32.4) | 6 (46.2) | 5 (23.8) | |
| Spinal surgeries | 5 (14.7) | 3 (23.1) | 2 (9.5) | |
| Nil | 18 (52.9) | 4 (30.8) | 14 (66.7) | |
| Medical history | 0.031 | |||
| Nil | 17 (48.6) | 3 (21.4) | 14 (66.7) | |
| Respiratory, cardiac, renal, GI | 11 (31.4) | 7 (50.0) | 4 (19.1) | |
| Multiple | 7 (20.0) | 4 (28.6) | 3 (14.3) | |
| Hematocrit, mean ± SD | 0.34 ± 0.04 | 0.34 ± 0.04 | 0.35 ± 0.04 | 0.63 |
GI = gastrointestinal; SD = standard deviation; SRS = Scoliosis Research Society.
↵* Unless otherwise indicated.