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. 2008 Jul 9:3:26.
doi: 10.1186/1749-799X-3-26.

Staged surgical treatment for severe and rigid scoliosis

Shi Yamin  1 , Li Li, Wei Xing, Gao Tianjun, Zhang Yupeng
Affiliations

Staged surgical treatment for severe and rigid scoliosis

Shi Yamin et al. J Orthop Surg Res. .

Abstract

Background: A retrospective study of staged surgery for severe rigid scoliosis. The purpose of this study was to evaluate the result of staged surgery in treatment of severe rigid scoliosis and to discuss the indications.

Methods: From 1998 to 2006, 21 cases of severe rigid scoliosis with coronal Cobb angle more than 80 degrees were treated by staged surgeries including anterior release and halo-pelvic traction as first stage surgery and posterior instrumentation and spinal fusion as second stage. Pedicle subtraction osteotomy(PSO) was added in second stage according to spine rigidity. Among the 21 patients, 8 were male and 13 female with an average age of 15.3 years (rang from 4 to 23 years). The mean pre-operative Cobb angle was 110.5 degrees (80 degrees -145 degrees ) with a mean spine flexibility of 13%. Radiological parameters at different operative time points were analyzed (mean time of follow-up: 51 months).

Results: External appearance of all patients improved significantly. The average correction rate was 65.2% (ranging from 39.8% to 79.5%) with mean correction loss of 2.23 degrees at the end of follow-up. No decompensation of trunk has been found. Mean distance between the midline of C7 and midsacral line was 1.19 cm +/- 0.51. Two patients had neurological complications: one patient had motor deficit and recovered incompletely.

Conclusion: Staged operation and halo-pelvic traction offer a safe and effective way in treatment of severe rigid scoliosis. Patients whose Cobb angle was more than 80 degrees and the flexibility of the spine was less than 20% should be treated in this way, and those whose flexibility of the spine was less than 10% and the Cobb angle remained more than 70 degrees after 1st stage anterior release and halo-pelvic traction should undergo pedicle subtraction osteotomy (PSO) in the second surgery.

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Figures

Figure 1
Figure 1
M,12Y, neurofibromatosis scoliosis, double thoracic curve.
Figure 2
Figure 2
Suspension view shows the flexibility of spine.
Figure 3
Figure 3
Bending view shows the change of deformity.
Figure 4
Figure 4
18 days after anterior release and halo-pelvic traction. The correction rate is 37%.
Figure 5
Figure 5
The correction rate is 51% after second operation.
Figure 6
Figure 6
No correction loss at follow-up 6 months later.
Figure 7
Figure 7
Body image a: pre-operation b: after anterior release and halo-pelvic traction. c: after second stage correction d: follow-up 6 months later.
Figure 8
Figure 8
Body image a: pre-operation b: after anterior release and halo-pelvic traction. c: after second stage correction d: follow-up 6 months later.
Figure 9
Figure 9
M, 21Y, Idiopathic kyphoscoliosis.
Figure 10
Figure 10
Suspension view shows the flexibility of spine.
Figure 11
Figure 11
Bending view shows the change of deformity.
Figure 12
Figure 12
days after anterior release and halo-pelvic traction. The correction rate is 35.6% and 50%.
Figure 13
Figure 13
The correction rates are 65.2% and 74.1% after second stage osteotomy and instrumentation.
Figure 14
Figure 14
Body image a: pre-operation b: after anterior release and halo-pelvic traction. c: after second stage correction.
Figure 15
Figure 15
Body image a: pre-operation b: after anterior release and halo-pelvic traction. c: after second stage correction.
See this image and copyright information in PMC

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