Is Adjacent Segment Disease More Frequent in Proximal Levels in Comparison with Distal Levels? Based on Radiological Data of at Least 2 Years Follow Up with More than 2 Level Thoracolumbar Fusions
| Autor: | Jung-Ho Kim, Dal-Sung Ryu, Seung Hwan Yoon |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Pfirrmann
genetic structures medicine.medical_treatment behavioral disciplines and activities 030218 nuclear medicine & medical imaging 03 medical and health sciences symbols.namesake 0302 clinical medicine mental disorders Adjacent segment disease medicine Radiographical ASD Risk factor Fisher's exact test Clinical Article medicine.diagnostic_test business.industry General Neuroscience Magnetic resonance imaging Retrospective cohort study Sagittal plane medicine.anatomical_structure Coronal plane Spinal fusion symbols Surgery Neurology (clinical) Intervertebral disc degeneration Nuclear medicine business Range of motion 030217 neurology & neurosurgery Range of motion Articular Segment flexibility |
| Zdroj: | Journal of Korean Neurosurgical Society |
| ISSN: | 2005-3711 |
| Popis: | OBJECTIVE The purpose of this retrospective study was to determine which of the proximal adjacent segment disease (ASD) and distal ASD was more prevalent and what parameters is more related to ASD in proximal levels and distal levels after more than 2 levels fusions. METHODS The medical records were reviewed retrospectively for 856 cases. A total of 66 cases of ASD were enrolled. On preop magnetic resonance imaging, disc degeneration was measured at the upper and lower parts of surgically treated levels and confirmed by the commonly used Pfirrmann grade. Segmental flexibility in sagittal plane was embodied in segment range of motion (ROM) obtained through flexion and extension X-ray before surgery. Coronal angle was recorded as methods Cobb's angle including fusion levels preoperatively. For the comparison of categorical variables between two independent groups, the chi-square test and Fisher exact test were performed. RESULTS Proximal ASD and distal ASD were 37/856 (4.32%) and 29/856 (3.39%), respectively. The incidence of proximal ASD was relatively high but insignificant differences. In comparison between ASD group and non ASD group, proximal Pfirmman was higher in proximal ASD and distal Pfirmman was higher in distal ASD group (p=0.005, p |
| Databáze: | OpenAIRE |
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