Abstract
Purpose
This study analyses the complications of spinal deformity surgery in adults to highlight pre-disposing factors.
Methods
The clinical records and imaging were reviewed for 48 consecutive patients, 12 males and 36 females, with a mean age of 64 (31–86), who had surgery for spinal deformity. Mean follow-up time was 36 months (24–60). Patient data recorded were age, diagnosis and co-morbidities; deformity assessment: curve type, sagittal and coronal balance, Cobb angle. Operation details: number of instrumented levels, duration and intra-operative complications. Outcome: complications, re-operations, balance and Cobb angle.
Results
28 patients (58 %) had at least 1, 15 patients (27 %) had 2 and 5 patients (9.5 %) had more than 2 co-morbidities. Average time between 1st presentation and operation was 13 months (1–41). The mean number of levels fused was 10.8 (4–23). In addition to posterior pedicle screw instrumentation, 40 patients had chevron osteotomies and 8 had pedicle substraction osteotomies. Posterior interbody fusions were performed at one level in 17 of which 7 had 2 level fusion. Two patients had combined anterior and posterior approaches. Fusion to the pelvis was performed in 19 patients. There were a total of 27 major and minor complications in 19/48 (39.5 %) patients. Late complications included 5 patients who had revisions for proximal junctional kyphosis, 1 patient had revision for pseudoarthrosis and 4 patients had removal of mal-positioned screws.
Conclusions
Factors associated with high complication rate in adult spinal deformity surgery are age, co-morbidities and severe sagittal imbalance at the time of presentation.
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Abbreviations
- C7-PS:
-
C7 plumb line to posterior sacrum distance
- PSO:
-
Pedicle substraction osteotomy
- VCR:
-
Vertebral column resection
- PJK:
-
Proximal junctional kyphosis
- PI:
-
Pelvic incidence
- LL:
-
Lumbar lordosis
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Bhagat, S., Vozar, V., Lutchman, L. et al. Morbidity and mortality in adult spinal deformity surgery: Norwich Spinal Unit experience. Eur Spine J 22 (Suppl 1), 42–46 (2013). https://doi.org/10.1007/s00586-012-2627-y
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DOI: https://doi.org/10.1007/s00586-012-2627-y