Sacroiliac Joint Dysfunction

Abstract

The sacroiliac (SI) joint as a primary source of low back pain is a resurgent, yet controversial subject. In 1905, Goldthwaite proposed that the sacroiliac joint could be a physiologic pain generator independent of pregnancy.¹ The role of the sacroiliac joint fell into obscurity over the ensuing decades, with the discovery of such tangible entities (with accepted pathophysiology) as the herniated nucleus pulposus,² and spinal stenosis.³ Accordingly, there is a paucity of basic and clinical science information available to aid physicians in understanding the biomechanics, diagnosis, and rehabilitation of sacroiliac joint dysfunction.