1. Complications of transpedicular lumbosacral fixation for non-traumatic disorders.
- Author
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Pihlajämaki H, Myllynen P, and Böstman O
- Subjects
- Adolescent, Adult, Aged, Chi-Square Distribution, Equipment Failure statistics & numerical data, Female, Follow-Up Studies, Humans, Incidence, Internal Fixators adverse effects, Internal Fixators statistics & numerical data, Male, Middle Aged, Postoperative Complications diagnosis, Postoperative Complications etiology, Postoperative Complications surgery, Reoperation statistics & numerical data, Spinal Diseases complications, Spinal Diseases diagnosis, Spinal Diseases surgery, Spinal Fusion instrumentation, Spinal Fusion statistics & numerical data, Lumbar Vertebrae surgery, Postoperative Complications epidemiology, Sacrum surgery, Spinal Fusion adverse effects
- Abstract
We analysed the complications encountered in 102 consecutive patients who had posterolateral lumbosacral fusion performed with transpedicular screw and rod fixation for non-traumatic disorders after a minimum of two years. Of these, 40 had spondylolysis and spondylolisthesis, 42 a degenerative disorder, 14 instability after previous laminectomy and decompression, and six pain after nonunion of previous attempts at spinal fusion without internal fixation. There were 75 multilevel and 27 single-level fusions. There were 76 individual complications in 48 patients, and none in the other 54. The complications seen were screw misplacement, coupling failure of the device, wound infection, nonunion, permanent neural injury, and loosening, bending and breakage of screws. Screw breakage or loosening was more common in patients with multilevel fusions (p < 0.001). Screws of 5 mm diameter should not be used for sacral fixation. Forty-six patients had at least one further operation for one or several complications, including 20 fusion procedures for nonunion. The high incidence of complications is a disadvantage of this technically-demanding method.
- Published
- 1997
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