Radiographic outcomes over time after endoscopic anterior scoliosis correction

Hay, Douglas, Izatt, Maree T., Adam, Clayton J., Labrom, Robert D., & Askin, Geoffrey N. (2009) Radiographic outcomes over time after endoscopic anterior scoliosis correction. Spine, 34(11), pp. 1176-1184.

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A prospective, consecutive series of 106 patients receiving endoscopic anterior scoliosis correction. The aim was to analyse changes in radiographic parameters and rib hump in the two years following surgery. Endoscopic anterior scoliosis correction is a level sparing approach, therefore it is important to assess the amount of decompensation which occurs after surgery. All patients received a single anterior rod and vertebral body screws using a standard compression technique. Cleared disc spaces were packed with either mulched femoral head allograft or rib head/iliac crest autograft. Radiographic parameters (major, instrumented, minor Cobb, T5-T12 kyphosis) and rib hump were measured at 2,6,12 and 24 months after surgery. Paired t-tests and Wilcoxon signed ranks tests were used to assess the statistical significant of changes between adjacent time intervals.----- Results: Mean loss of major curve correction from 2 to 24 months after surgery was 4 degrees. Mean loss of rib hump correction was 1.4 degrees. Mean sagittal kyphosis increased from 27 degrees at 2 months to 30.6 degrees at 24 months. Rod fractures and screw-related complications resulted in several degrees less correction than patients without complications, but overall there was no clinically significant decompensation following complications. The study concluded that there are small changes in deformity measures after endoscopic anterior scoliosis surgery, which are statistically significant but not clinically significant.

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ID Code: 25879
Item Type: Journal Article
Refereed: Yes
Additional Information: That it is not the final published version
Keywords: anterior scoliosis surgery, instrumented Cobb angle, major Cobb angle, anterior thoracoscopic instrumentation, curve decompensation, endoscopic anterior scoliosis correction, adolescent idiopathic scoliosis
DOI: 10.1097/BRS.0b013e31819c3955
ISSN: 0362-2436
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomedical Engineering not elsewhere classified (090399)
Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > CLINICAL SCIENCES (110300) > Orthopaedics (110314)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 Lippincott Williams & Wilkins
Deposited On: 23 Jun 2009 04:35
Last Modified: 29 Feb 2012 13:56

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