Efficacy of Manual Therapy and Sacroiliac Joint Injection in Sacroiliac Joint Dysfunction

Inclusion Criteria: * Low back and/or gluteal pain and/or groin pain without radicular extension below the L4 level for more than 3 months * Pain score greater than 3 according to NRS * Unresponsiveness to conservative treatment (such as exercise, NSAID) * At least 3 of the five sacroiliac provocation tests (FABER (Patrick), thigh thrust, Gaenslen, sacroiliac compression, and sacroiliac distraction tests) are positive Exclusion Criteria: * Refusing to participate in the study * Pregnancy * History of inflammatory disease (ankylosing spondylitis, psoriatic arthritis, rheumatoid arthritis, etc.) * Infective sacroiliitis * Malignancy * Osteoporosis * Mechanical lumbosacral pathologies (spondylolisthesis, scoliosis, stenosis, etc.) * Neurological finding in the lower extremity * Pain spreading below the knee * History of spinal surgery * History of allergy to drugs to be injected (local anesthetic, contrast material, steroid allergy)