Background
Methods
Patients
Surgical procedures
Statistical analysis
Results
General characteristics
Complications
No. | Initial age (years/old) | Sex | Hemivertebra location | Fusion levels | Time of complication occurrence | Complications | Treatment |
---|---|---|---|---|---|---|---|
1 | 3 | F | L2 | L1-L3 | 4 years postoperative | screw migration | Remove implants |
2 | 3 | F | L2 | L1-L3 | 7 years postoperative | screw migration | Remove implants |
3 | 3 | F | L4 | L3-L5 | 6 months postoperative | rod break without migration | Conservative observation |
4 | 5 | F | L2 | L1-L3 | 3 days postoperative | screw misplacement | Revision with hooks |
5 | 17 | F | L4 | L2-S1 | 2 days postoperative | screw misplacement | Remove misplaced screws |
6 | 7 | M | L3/4 | L3-L4 | 7 years postoperative | pedicle elongation and screw migration | Remove implants |
7 | 2 | F | L5/6 | L5-L6 | 3 years postoperative | pedicle elongation and screw migration | Remove implants |
8 | 15 | M | T11/12 | T8-L2 | 4 years postoperative | Proximal adjacent kyphosis | Extended fused segments |
9 | 3 | M | T11 | T10-T12 | 7 years postoperative | Progressive kyphosis | Extended fused segments |
10 | 15 | F | T12/L1 | T12-L2 | 8 days postoperative | Poor wound healing | Debridement |
11 | 11 | M | L1 | T11-L2 | 6 days postoperative | Poor wound healing | Debridement |
No. | Coronal segmental curve (°) | Total main curve (°) | Sagittal kyphosis (+)/lordosis (−) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Measured value (°) | Distance to norm (°) | ||||||||||||
Pre-op. | Postop. | Latest follow-up | Pre-op. | Postop. | Latest follow-up | Pre-op. | Postop. | Latest follow-up | Norm (°) | Pre-op. | Postop. | Latest follow-up | |
1 | 31 | 0 | 0 | 40 | 5 | 0 | −5 | −4 | −6 | −11 | 6 | 7 | 5 |
2 | 37 | 3 | 12 | 28 | 4 | 15 | 20 | −4 | −2 | −11 | 31 | 7 | 9 |
3 | 30 | 12 | 20 | 42 | 14 | 23 | −25 | −17 | −22 | −20 | −5 | 3 | −2 |
4 | 21 | 9 | 0 | 37 | 15 | 0 | 14 | −3 | −6 | −4 | 18 | 1 | −2 |
5 | 34 | 16 | 15 | 41 | 21 | 17 | 14 | −11 | −11 | −33 | 47 | 22 | 22 |
6 | 26 | 2 | 4 | 23 | 5 | 4 | 4 | 0 | −7 | −13 | 17 | 13 | 6 |
7 | 15 | 2 | 2 | 22 | 12 | 4 | 3 | 1 | −6 | −20 | 23 | 21 | 14 |
8 | 64 | 30 | 32 | 66 | 40 | 43 | 88 | 10 | 14 | 2.5 | 85.5 | 7.5 | 11.5 |
9 | 47 | 10 | 6 | 42 | 16 | 7 | 22 | 14 | 10 | 5.5 | 16.5 | 8.5 | 4.5 |
10 | 35 | 6 | 8 | 47 | 16 | 10 | 39 | 9 | 10 | 3.5 | 35.5 | 5.5 | 6.5 |
11 | 43 | 3 | 3 | 46 | 5 | 5 | 2 | 7 | −3 | −3 | 5 | 10 | 0 |
Risk factors
Risk Factors | Implant-related complications | Non-implant-related complications |
---|---|---|
Yes (n=7) | No (n=109) | |
Sex | ||
Male | 2 (28.6 %) | 60 (55 %) |
Female | 5 (71.4 %) | 49 (45 %) |
Age | ||
≤5 years/old | 5 (71.4 %) | 29 (26.6 %) |
5−10 years/old | 1 (14.3 %) | 21 (19.3 %) |
>10 years/old | 1 (14.3 %) | 59 (54.1 %) |
Location | ||
lumbar spine | 4 (57.1 %) | 16 (14.7 %) |
others | 3 (42.9 %) | 93 (85.3 %) |
Fusion levels | ||
bisegmental fusion | 5 (71.4 %) | 31 (28.4 %) |
others | 2 (28.6 %) | 78 (71.6 %) |
Cage | ||
Yes | 0 (0) | 15 (11 %) |
No | 7 (100 %) | 94 (89 %) |
Contralateral bar/rib synostosis | ||
Yes | 0 (0) | 5 (6.1 %) |
No | 7 (100 %) | 104 (93.9 %) |
Main curve | ||
<40° | 4 (57.1 %) | 37 (33.9 %) |
≥40° | 3 (42.9 %) | 62 (66.1 %) |
Correction rate of main curve | ||
≤80 % | 4 (57.1 %) | 72 (66.1 %) |
>80 % | 3 (42.9 %) | 37(33.9 %) |
Segmental scoliosis | ||
<30° | 3 (42.9 %) | 39 (35.8 %) |
≥30° | 4 (57.1 %) | 70 (64.2 %) |
Correction Rate of segmental scoliosis | ||
≤80 % | 3 (42.9 %) | 43 (39.4 %) |
>80 % | 4 (57.1 %) | 66 (60.6 %) |