Evaluation of spinal canal and neural foramen areas in supine and prone positions in patients with lumbar stenosis
European Spine Journal, cilt.35, sa.7, ss.3988-3993, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 35 Sayı: 7
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s00586-025-09586-2
- Dergi Adı: European Spine Journal
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CINAHL, EMBASE, MEDLINE, Academic Search Ultimate (EBSCO), Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest), Pharma Collection (ProQuest)
- Sayfa Sayıları: ss.3988-3993
- Anahtar Kelimeler: Dynamic lumbar MRI, Lumbar spinal canal stenosis, Neural foramen, Prone MRI, Spinal canal area, Supine MRI
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
Objective: To assess and compare the dimensions of the spinal canal and neural foramina in patients with lumbar spinal canal stenosis (LSCS) using magnetic resonance imaging (MRI) obtained in both supine and prone positions. Methods: This prospective study included 34 patients presenting with symptoms consistent with LSCS who did not respond to conservative treatment. MRI scans were performed using a 3T scanner in both supine and prone positions, utilizing standardized T1-weighted, T2-weighted, and STIR sequences. The areas of the spinal canal and neural foramen were measured at each lumbar level. Results: The areas of the spinal canal and neural foramen were significantly reduced in the prone position at all lumbar levels compared to the supine position (p < 0.001). The most significant reduction was seen at the L4–L5 level for both parameters. A strong correlation was observed between measurements in the supine and prone positions (r > 0.89), indicating a positional effect on the severity of stenosis. Conclusion: MRI performed in the prone position consistently shows a significant reduction in the dimensions of the spinal canal and neural foramen in patients with LSCS, especially at the L4–L5 level. These results suggest that prone MRI could be a useful, accessible alternative to upright or weight-bearing imaging for assessing the dynamic features of lumbar stenosis.