Relation of Sacroiliac Joint Degeneration to Lower Back Pain Improvement in Posterior Decompression for Lumbar Spinal Canal Stenosis

• Published in: Journal of Spine Research Vol. 13; no. 9; pp. 1079 - 1083
• Main Author: Tamaki, Yasuyuki
• Format: Journal Article
• Language: Japanese
• Published: The Japanese Society for Spine Surgery and Related Research 20.09.2022; 一般社団法人 日本脊椎脊髄病学会
• Subjects: Decompression; Lumbar spine; Sacroiliac joint; 仙腸関節; 腰椎; 除圧術
• ISSN: 1884-7137; 2435-1563
• DOI: 10.34371/jspineres.2021-0058

Introduction: Impacts of sacroiliac joint degeneration were examined on clinical results of posterior decompression for lumbar spinal canal stenosis.Methods: A total of 107 cases of lumbar spinal canal stenosis were analyzed, wherein 67 and 41 cases were men and women, respectively, with an average age of 72 years. The follow-up period was 315 days on average. Subjects were compared via dividing into group N of 67 and D of 40 cases with type 0, 1 and type 2, 3 by Eno classification about sacroiliac joint degeneration.Results: Average recovery rate of JOA score and VAS variation of low back and lower leg pain along with lower leg numbness observed in group N and D were 56.5% and 58.9%, 14.2 and 30.9 mm, 27.9 and 39.0 mm, and 30.3 and 28.1 mm, respectively. Scores of group N and D obtained in JOABPEQ regarding disorders relating to pain, function disorder caused by back pain, locomotor function disorder, social life disorder, and psychological disorder were 19.2 and 31.4 points, 9.4 and 17.0 points, 21.8 and 26.4 points, 16.1 and 20.9 points, and 8.0 and 8.5 points, respectively. The amount of change of low back pain VAS was significantly different between the two groups.Conclusions: The amount of change of low back pain VAS was significantly larger in patient with more severe sacroiliac joint degeneration in the outcomes of posterior decompression for lumbar spinal stenosis.