• Sonoko Matsumoto, Kanna Nakamura, Masataka Ifuku, Shuji Komatsu, Yoshihito Morita, Mina Imai, and Hiromasa Mitsuhata.
• Department of Anesthesiology and Pain Medicine, Juntendo Tokyo Koto Geriatric Center, Tokyo 136-0075.
• Masui. 2012 Sep 1; 61 (9): 993-7.

BackgroundLumbar spine disease in the elderly people is complicated by a variety of pathophysiology in the spine and the cause of the pain is unclear. Diagnosis of pain may be difficult in patients with pain in the thigh and groin area. Sacroiliac joint is supporting the trunk and movable joint. We examined the effect of the sacroiliac joint block for intractable low back pain.MethodsRetrospectively we examined the duration of disease in patients with hip and leg pain visiting the hospital for eight months, and we questioned the site of pain awareness. Newton test, Gaenslen test, Patrick test and Fadire test were carried out for sacroiliac joint pain in patients with at least one positive finding. When performing sacroiliac ligaments block local anesthetics was injected to check the position of the dorsal sacroiliac ligaments under ultrasonic echo whenever possible. The block is performed with the patients prone at a point one finger from the posterior superior iliac spine level at an angle of 30-45 degrees downward toward the outside. Injecting the drugs penetrating the ligament continued to give a feel slightly outward to avoid the iliac Cattelan 23 G needle. We confirmed pain assessment NRS at 11 (0-10), and the improvement of pain was assessed with the change of the NRS on the next return.ResultsNRS showed a significant decrease at all points in time before block, their pain decreased gradually. The patients showed NRS improvement of more than 50% of the first block in 15 of 24 patients.ConclusionsBlock at the posterior sacroiliac ligament region significantly reduced pain for chronic intractable low back pain. The block was shown to be effective as a treatment and for diagnosis.

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