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Indirect Foraminal Decompresion may be Superior to Direct Foraminotomy in Extension : A Cadaveric Study
| Content Provider | Semantic Scholar |
|---|---|
| Author | Seibert, Scott E. Modak, Ashin Buckley, Jenni M. Kondrashov, Dimitriy G. |
| Copyright Year | 2014 |
| Abstract | Methods: Eight cadaveric specimens (L5-S1) were used for this study. The edge of the superior vertebrae and approximately half of the sacrum were cast in quick-set resin (Smooth Cast 300). After intact testing, the left side of each specimen was subject to a direct, unilateral foraminal decompression by a trained orthopaedic surgeon. After testing of the effects of the direct foraminotomy, both sides of the specimen were subject to an indirect decompression via an ALIF interbody distraction. Specimen were placed into a custom made, pure moment jig. 3D X-ray scans were then taken of the specimen mounted in the jig, under no load, 3.5Nm of flexion, and 3.5 Nm of extension. The 3D X-ray scans were first converted into DICOM format, and these were imported using segmentation software. Once the models of the lumbar segment had been made, 3D models of the left and right foraminal spaces were created. The model of the foraminal space was cut into lateral cross sections 1mm thick, and the lowest cross sectional area of the foramen was recorded. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.sfspine.com/wp-content/uploads/2015/10/lumbar-stenosis-402-Manuscript.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
