Radiological Outcome of Cotrel-Dubousset Instrumentation in Nineteen Patients with Adolescent Idiopathic Scoliosis

Year 2017, , 1 - 8, 28.08.2017

Murat Çalbıyık

https://doi.org/10.19127/mbsjohs.315163

Abstract

Objective: Adolescent
idiopathic scoliosis is a progressive type of scoliosis that may lead to
permanent deformity unless prevented and treated effectively. To present
radiological outcome of patients with adolescent idiopathic scoliosis treated
with the Cotrel-Dubousset (CD) instrumentation in our clinic.

Methods: This was a
prospective follow-up study of 19 patients (8 males, 11 females; mean age 18.5
years; age range 12-43 years) who underwent CD instrumentation for late onset
idiopathic scoliosis. The CD instrumentation and posterior spinal fusion was
performed using the standard technique through either anterior or posterior
approach. On average, 13.52 vertebrae (range, 8-16) were included in the spinal
fusion. The mean postoperative follow-up duration was 18 months (2-32 months).

Results: Cobb angle
on frontal plane was corrected 47.74%±21.73% at thoracic region and
34.52%±15.96% at lumbar region. On sagittal plane, the percentage of correction
was 28.61%±20.91% on thoracic kyphosis angle and 38.96%±29.73% lumbar lordosis
angle. In general, physiological sagittal contour of spine was obtained in
49.2% of patients after CD instrumentation. The most common postoperative
complications were hook dislocation (n=8), bending and dislocation of screw
(n=7), broken lamina and pedicule (n=5), and infection (n=3), all of which were
effectively treated.

Conclusion: CD
instrumentation effectively corrects the late onset idiopathic scoliosis if it
is performed after a proper preoperative planning.

Keywords

Curl-up exercise, abdominal muscles, sternocleidomastoid, electromyography

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