• Spine · Sep 2004

    Multicenter Study Comparative Study

    Prospective pulmonary function comparison of open versus endoscopic anterior fusion combined with posterior fusion in adolescent idiopathic scoliosis.

    • Lawrence G Lenke, Peter O Newton, Michelle C Marks, Kathy M Blanke, Brenda Sides, Yongjung J Kim, and Keith H Bridwell.
    • Washington University School of Medicine, Department of Orthopaedic Surgery, St. Louis, MO 63110, USA. lenkel@wustl.edu
    • Spine. 2004 Sep 15;29(18):2055-60.

    Study DesignProspective clinical study.ObjectiveTo evaluate pulmonary function tests at a minimum 2-year follow-up in patients with adolescent idiopathic scoliosis (AIS) undergoing either an endoscopic versus open anterior fusion along with posterior segmental fixation and fusion.MethodsA total of 21 patients with AIS underwent a video-assisted thoracoscopic (VAT group) release/fusion followed by a posterior spinal fusion (PSF) and segmental spinal fixation were compared to 16 patients who underwent an open thoracotomy (Open group) followed by a PSF. The mean preoperative thoracic Cobb was 70 degrees in the VAT group versus 75 degrees in the Open group. All patients had preoperative and a minimum 2-year postoperative pulmonary function tests consisting of forced vital capacity (FVC) forced expiratory volume in one second (FEV-1).ResultsThe average thoracic Cobb correction was to 27 degrees (61%) in the VAT group versus 36 degrees (52%) in the Open group. Preoperative and 2-year postoperative FVC in the VAT group averaged 2.48 L and 2.85 L, respectively (P = 0.006). The Open group corresponding results were 1.97 L and 2.43 L, respectively (P = 0.001). Preoperative and minimum 2-year postoperative FEV-1 in the VAT group averaged 2.06 L and 2.37 L, respectively (P = 0.005). Values for the Open group were 1.65 L and 2.08 L, respectively (P = 0.001). Although both groups had pulmonary function test parameters that were statistically improved postoperative versus preoperative, there were no significant differences comparing the VAT group to the Open group (P > 0.05)ConclusionsVAT versus Open release/anterior fusion in association with a PSF for select AIS curves requiring circumferential treatment both demonstrated similar radiographic and pulmonary function test improvement at 2 years postoperative, with no significant differences seen between the groups.

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