In our study, the normality of the contralateral
sacroiliac joint was an important argument for the sensitivity of signs we described.
Resting Thickness of Latissimus Dorsi of Healthy Control was 13.04+-2.25mm, among
Sacroiliac Joint Dysfunction Ipsilateral was 12.12+-1.67mm and opposite thickness was 8.69+-1.13mm.
If there are no neurological signs or symptoms in patients of sciatica or radicular pain, other sources of pain such as
sacroiliac joint should be considered as a pain generator.
Sacroiliac joint mediated pain is an illustrious entity which may cause discomfort within the lower back, buttock, groin and lower extremity4.
Multifocal skeletal tuberculosis involving the lumbar spine and a
sacroiliac joint: MR imaging findings.
Septic arthritis caused by this organism was reported to occur as a complication of hematogenous seeding of the
sacroiliac joint in patients with infective endocarditis [12].
Caption: Figure 1: Coronal gadolinium-enhanced fat-suppressed T1-weighted MRI scan of the
sacroiliac joints showing chronic degeneration and acute sacroiliitis.
Spondyloarthritis research consortium of Canada magnetic resonance imaging index for assessment of
sacroiliac joint inflammation in ankylosing spondylitis.
The radiographic exam of the pelvis pointed out a condensation of the right
sacroiliac joint reflecting unilateral sacroiliitis (Figure 1).
The patient was provisionally diagnosed with ankylosing spondylitis at the age of 39 years during a routine x-ray which showed changes in the spine and the
sacroiliac joint. He had no peripheral signs of the illness such a uveitis, skin rashes, any gastrointestinal illness, or joint pain other than that at the
sacroiliac joint.
The first issue that is progression of
sacroiliac joint damage and osteoproliferation has already been discussed in a section above ("Inherent Difficulties in the Early Diagnosis of AS").
The incidence of
Sacroiliac joint (SI joint) dysfunction in patients with back pain may range from 15 to 30% [3] and lumbar facet joints may account for 15 to 40% of back pain [4].
