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  • Title: Comparison of Three Different Cranio-Cervical Decompression Procedures in Children with Chiari Malformation Type I: Does the Surgical Technique Matter?
    Author: Gallo P, Sokol D, Kaliaperumal C, Kandasamy J.
    Journal: Pediatr Neurosurg; 2017; 52(5):289-297. PubMed ID: 28848212.
    Abstract:
    BACKGROUND/AIMS: A broad spectrum of cranio-cervical decompression techniques (CCD) is employed for the treatment of Chiari malformation type I (CM1). The aim of this study was to compare the clinical and radiological outcome of 3 different CCD performed in a single paediatric centre. METHODS: A retrospective analysis of children treated between 2008 and 2014 was performed. Three different surgical techniques were offered to the patients: an extradural osseo-ligamentous bony decompression (BD), or a BD plus opening of the dura either without duroplasty (DOWD) or with watertight expansile duroplasty (DOPD). The primary clinical outcome was measured by utilizing the Chicago Chiari Outcome Scale (CCOS). RESULTS: Forty-six children underwent 51 CCD: 17 BD, 17 DOWD, and 17 DOPD. The median follow-up period was 46 months (16-98 months). Patients who underwent BD had a shorter length of hospital stay than those who underwent DPTC and DOWD. Clinical improvement, defined by the mean CCOS score, was comparable in patients receiving BD (n = 14.6) and DOPD (n = 14.5), but lower in patients with DOWD (n = 12). Post-operative complications were noted in 7 DOWD patients (41%) and 3 DOPD patients (17.6%). CONCLUSIONS: BD is a safe and effective procedure with comparable clinical and radiological outcomes to DOPD in children with CM1. The risk of post-operative complications and worse clinical outcome was noted to be higher when performing a DOWD.
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