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- W2891428032 abstract "Superior articular process cross-sectional area is a new sensitive parameter for the diagnosis of lumbar central canal spinal stenosis Sang Joon An,1 Jong-Uk Mun,2 Keum Nae Kang,3 Young Uk Kim4 1Department of Neurology, Catholic Kwandong University of Korea College of Medicine, International St Mary’s Hospital, Incheon, Korea; 2Department of Orthopaedic Surgery, Changwon Gyeongsang National University Hospital, Changwon, Korea; 3Department of Anesthesiology and Pain Medicine, National Police Hospital, Seoul, Korea; 4Department of Anesthesiology and Pain Medicine, Catholic Kwandong University of Korea College of Medicine, International St Mary’s Hospital, Incheon, Korea Purpose: Previous studies reported that hypertrophied superior articular process (SAP) was associated with an increased risk of lumbar foraminal stenosis. However, no study investigated the effect of SAP hypertrophy in lumbar central canal spinal stenosis (LCCSS). We hypothesized that the SAP cross-sectional area (SAPCSA) is the main morphologic feature in the diagnosis of LCCSS.Patients and methods: Data regarding the SAPCSA were collected from 109 patients with LCCSS. All patients were enrolled after the LCCSS diagnosis was confirmed by an experienced, board-certified neuroradiologist. All patients had clinical manifestations compatible with LCCSS. A total of 120 subjects in the control group underwent lumbar spine MRI as part of non-symptomatic medical examination. T2-weighted axial images were obtained from the 2 groups. Using a picture archiving and communications system, we analyzed the CSA of the bone margin of SAP at the level of L4–L5 facet joint on MRI.Results: The average SAPCSA was 96.63±13.37 mm2 in the control group, and 123.59±14.18 mm2 in the LCCSS. The LCCSS group showed significantly higher levels of the SAPCSA (P<0.001) compared with the control one. Receiver operator characteristic (ROC) curve analysis was performed to determine the validity of the SAPCSA as a predictor of LCCSS. In the LCCSS group, the optimal cut-off-point was 110.71 mm2, with 83.5% sensitivity, 83.3% specificity, and area under the curve of 0.92 (95% CI: 0.88–0.95).Conclusion: Higher SAPCSA values were associated with a higher possibility of LCCSS. These results are important in the evaluation of patients with LCCSS. Keywords: superior articular process, lumbar central canal spinal stenosis, cross-sectional area" @default.
- W2891428032 created "2018-09-27" @default.
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- W2891428032 date "2018-09-01" @default.
- W2891428032 modified "2023-09-28" @default.
- W2891428032 title "Superior articular process cross-sectional area is a new sensitive parameter for the diagnosis of lumbar central canal spinal stenosis" @default.
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- W2891428032 doi "https://doi.org/10.2147/cia.s172355" @default.
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