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https://hdl.handle.net/2440/6859
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Type: | Journal article |
Title: | Radiologic assessment of interbody fusion using carbon fiber cages |
Author: | Santos, E. Goss, D. Morcom, R. Fraser, R. |
Citation: | Spine, 2003; 28(10):997-1001 |
Publisher: | Lippincott Williams & Wilkins |
Issue Date: | 2003 |
ISSN: | 0362-2436 1528-1159 |
Statement of Responsibility: | Santos, Edward R. G. ; Goss, David G. MD; Morcom, Russel K.; Fraser, Robert D. |
Abstract: | <h4>Study design</h4>A comparative study investigated the use of plain static radiographs, flexion-extension radiographs, and thin-section helical computed tomography (CT) scanning in the assessment of anterior lumbar interbody fusion using carbon fiber cages.<h4>Objective</h4>To compare plain static radiographs, flexion-extension radiographs, and thin-section helical computed tomography scans in the assessment of lumbar interbody fusion using carbon fiber cages.<h4>Summary of background data</h4>Lumbar interbody fusion has become a popular procedure for the treatment of discogenic back pain. However, there currently is no universally accepted radiologic assessment tool for determining fusion, and the definitive criteria for diagnosing a successful interbody fusion in the lumbar spine remains controversial.<h4>Methods</h4>Plain static radiographs, flexion-extension radiographs, and helical computed tomography scans were performed on 32 patients (49 levels) 5 years after anterior lumbar interbody fusion using carbon fiber cages and autologous bone. A radiologist assessed fusion using the Hutter method to detect movement, whereas a spinal surgeon measured movement in degrees using the Simmons method. Helical computed tomography scans were assessed for the presence of bridging trabecular bone.<h4>Results</h4>The fusion rate was 86% on plain radiographs and 84% with the Hutter method. The fusion rate was 74% with the 2 degrees cutoff, and 96% with the 5 degrees cutoff prescribed by the Food and Drug Administration. Fusion on helical computed tomography scans was observed in 65% of the patients.<h4>Conclusions</h4>In the radiologic assessment of interbody fusion using carbon fiber cages, the use of plain radiographs and flexion-extension radiographs produced much higher fusion rates than assessment with thin-section helical computed tomography scans. The thin-section helical computed tomography studies clearly demonstrated the radiographic presence or absence of bridging bone, a property that was not seen with plain static radiographs or flexion-extension radiographs. |
Keywords: | Lumbar Vertebrae Humans Tomography, Spiral Computed Spinal Fusion Sensitivity and Specificity Adult Aged Middle Aged Female Male |
DOI: | 10.1097/01.BRS.0000061988.93175.74 |
Published version: | http://dx.doi.org/10.1097/01.brs.0000061988.93175.74 |
Appears in Collections: | Aurora harvest Orthopaedics and Trauma publications |
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