Abstract
Objective: The frequencies of sacroiliac joint (SIJ) pain over low back pain (LBP) experienced by pain clinic outpatients in Japan are rarely reported. Patients and methods: We were retrospectively evaluating by use of medical records of our outpatients who had chief complaints with LBP during 2013. Patients suspected of suffering SIJ pain with present histories of, such physical fi ndings received diagnostic SIJ blocks. Patients were diagnosed as SIJ pain when the pain alleviated more than 50%. Results: In 459 patients who had chief complaints with LBP, we suspected that 100 patients who had responsibility focus at SIJ with clinical diagnosis and diagnostic block. Of these 100 patients, 90 could retrospectively be evaluated through clinical courses in the medical records. Fifty-five were diagnosed as SIJ pain; consequently the frequency of SIJ pain in LBP patients was at least 12.0% (55/459). Conclusion: The frequency of SIJ pain in LBP patients visiting our pain clinic was at least 12.0%.
