Shirodkar Kapil, Gavvala Sai Niharika, Ariyaratne Sisith, Jenko Nathan, Nischal Neha, Iyengar Karthikeyan P, Mehta Jwalant, Botchu Rajesh
Department of Musculoskeletal Radiology, The Royal Orthopaedic Hospital, Birmingham, UK.
Department of Radiology, Holy Family Hospital, New Delhi, India.
J Craniovertebr Junction Spine. 2024 Jul-Sep;15(3):280-283. doi: 10.4103/jcvjs.jcvjs_40_24. Epub 2024 Sep 12.
A healthy lower back is essential for optimal spinal function and overall wellness. Magnetic resonance imaging (MRI) has become the gold standard in assessing lumbar spine disease. This article aims to evaluate the precision and efficacy of the lumbar offset distance (LOD) as a novel MRI parameter designed to determine the lumbar spine alignment. normally measured as we compared it to a new parameter based on length.
Supine sagittal magnetic resonance images of 101 patients who underwent lumbar spine MRI scans were analyzed. We focused on L1-L5 lumbar lordosis angle (LLA) and LOD to assess lumbar spine alignment. Diagnostic cutoff values for LOD measurements were determined, and their diagnostic accuracies were evaluated.
The normal LLA in our dataset was 23°-45°, and the normal LOD was 5-15 mm. Using linear regression, the range of 6-14 mm correlates to the LLA range of 20°-45°, which would define the standard lumbar offset as normal between 6 and 14 mm. Hence, lumbar hypolordosis was defined as <6 mm, and lumbar hyperlordosis was defined as more than 14 mm. Our study showed a good correlation between the LOD and LLA and is particularly useful in identifying cases of normal lumbar lordosis, hypolordosis, and hyperlordosis.
Linear measurements show good diagnostic accuracy of LOD in evaluating lumbar spinal alignment, including normal alignment, hypolordosis, and hyperlordosis.
健康的下背部对于最佳脊柱功能和整体健康至关重要。磁共振成像（MRI）已成为评估腰椎疾病的金标准。本文旨在评估腰椎偏移距离（LOD）作为一种旨在确定腰椎排列的新型MRI参数的精度和有效性。我们将其与基于长度的新参数进行比较时通常进行测量。
分析了101例行腰椎MRI扫描患者的仰卧位矢状面磁共振图像。我们重点关注L1-L5腰椎前凸角（LLA）和LOD以评估腰椎排列。确定了LOD测量的诊断临界值，并评估了其诊断准确性。
我们数据集中正常LLA为23°-45°，正常LOD为5-15mm。使用线性回归，6-14mm的范围与20°-45°的LLA范围相关，这将正常腰椎偏移定义为6至14mm之间。因此，腰椎前凸不足定义为<6mm，腰椎前凸过度定义为>14mm。我们的研究表明LOD与LLA之间具有良好的相关性，并且在识别正常腰椎前凸、前凸不足和前凸过度的病例中特别有用。
线性测量显示LOD在评估腰椎排列（包括正常排列、前凸不足和前凸过度）方面具有良好的诊断准确性。
