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Orthop Traumatol Surg Res. 2013 Nov;99(7):845-51. doi: 10.1016/j.otsr.2013.04.012. Epub 2013 Sep 25.

Lumbosacral arthrodesis for neuromuscular scoliosis using a simplified Jackson technique.

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Université François-Rabelais, Hôpital régional universitaire de Tours, Tours, France.


Treating patients with severe neuromuscular scoliosis by long spinal fusion improves their quality of life and provides significant comfort for the patient and caregivers. But lumbosacral (L5-S1) fusion is challenging in these patients because of the significant deformities that result in poor bone anchoring quality and a risk of impingement between the skin and implants. In 1993, Jackson described a L5-S1 fusion technique using S1 pedicle screws and intrasacral rods (implanted under X-ray guidance) that are linked to the construct above with connectors. The goal of this study was to evaluate the clinical and radiological results and the postoperative complications of a simplified version of this technique, which does not require connectors or X-ray guidance.


Thirty-three patients were evaluated with a minimum follow-up of 4years (average 82months). Frontal balance, sagittal balance, Cobb angle, sacral slope, lumbar lordosis and lateral pelvic tilt in the frontal plane were assessed on preoperative, postoperative and follow-up X-rays. Intraoperative and postoperative complications were recorded.


Complete fusion was obtained in 32 patients. The average Cobb angle was 62° initially and was reduced to 20° after surgery and 24° at the final follow-up. The average lateral pelvic tilt was 10.3° (0 to 26°) initially; it was surgically corrected to an average of 7.5° (0 to 24°); the average secondary loss of correction was 1.2° (0 to 9°). The sacral slope was corrected to an average of 11.2°; an average of 0.2° had been lost at the last follow-up (0 to 18°). Although the average for lumbar lordosis was unchanged, the standard deviation went from 29° to 16° after the corrective surgery and 17° at the last follow-up, with large cluster of measurements around the average value of 40°. The deformity correction was comparable to the results with other techniques (Galveston, sacroiliac screws); the complication rate was similar but the non-union rate was lower. This simplified Jackson technique appears to be an effective, simple method for L5-S1 fusion to correct neuromuscular scoliosis as it provides stable results over time.


Level IV, retrospective study.


Iliosacral fixation; Jackson technique; Lateral pelvic tilt; Neuromuscular scoliosis

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