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Eur Spine J. 2008 Feb;17(2):255-61. Epub 2007 Dec 4.

Scoliosis correction with pedicle screws in Duchenne muscular dystrophy.

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  • 1Department of Orthopaedics, Balgrist Clinic, University of Zurich, Forchstrasse 340, CH-8008, Zurich, Switzerland.

Abstract

This report describes the spinal fixation with pedicle-screw-alone constructs for the posterior correction of scoliosis in patients suffering from Duchenne muscular dystrophy (DMD). Twenty consecutive patients were prospectively followed up for an average of 5.2 years (min 2 years). All patients were instrumented from T3/T4 to the pelvis. Pelvic fixation was done with iliac screws similar to Galveston technique. The combination of L5 pedicle screws and iliac screws provided a stable caudal foundation. An average of 16 pedicle screws was used per patient. The mean total blood loss was 3.7 l, stay at the intensive care unit was 77 h and hospital stay was 19 days. Rigid stabilisation allowed immediate mobilisation of the patient in the wheel chair. Cobb angle improved 77% from 44 degrees to 10 degrees, pelvic tilt improved 65% from 14 degrees to 3 degrees. Lumbar lordosis improved significantly from 20 degrees to 49 degrees, thoracic kyphosis remained unchanged. No problems related to iliac fixation, no pseudarthrosis or implant failures were observed. The average percentage of predicted forced vital capacity (%FVC) of the patients was 55% (22-94%) preoperatively and decreased to 44% at the last follow-up. There were no pulmonary complications. One patient with a known cardiomyopathy died intraoperatively due to a sudden cardiac arrest. The rigid primary stability with pedicle screws allowed early mobilisation of the patients, which helped to avoid pulmonary complications.

PMID:
18057966
[PubMed - indexed for MEDLINE]
PMCID:
PMC2365540
Free PMC Article

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