Sacro-iliac Joint Dysfunction
Sacroiliac (SI) joint sprain has been shown to occur in 10% to 33% of patient
population.
It is usually caused by abnormal motion (i.e. hyper- or hypo-mobile) or
malalignment of the sacroiliac joint.
Sacroiliac joint syndrome is a significant source of pain in 15% to 30% of people
with mechanical low back pain.
Impairments can be either traumatic or insidious onset. Patients will frequently
complain of pain localized to the SI joint region with or without radiculopathy
depending on the involvement of the sciatic nerve
Pain is usually relieved with rest and/or by unweighting the joint
Unresolved inflammation or a traumatic Etiology may yield a hypomobile SI
joint.
Four common impairments include: pubic symphysis hypomobility, an
anterior rotated innominate, a posterior rotated innominate, and an upslipped
innominate
, Identification
Observation and Findings
With the patient standing, view from the posterior aspect. Look for symmetry in the
heights of the iliac crests, posterior superior iliac spines, and anterior superior iliac
spines. With your hands on these bony landmarks, have the patient march in place
(March Test) and observe movement of the innominate. If there are positive signs,
conduct additional tests, supine and prone lying, to verify SIJ involvement.
Sacroiliac (SI) joint sprain has been shown to occur in 10% to 33% of patient
population.
It is usually caused by abnormal motion (i.e. hyper- or hypo-mobile) or
malalignment of the sacroiliac joint.
Sacroiliac joint syndrome is a significant source of pain in 15% to 30% of people
with mechanical low back pain.
Impairments can be either traumatic or insidious onset. Patients will frequently
complain of pain localized to the SI joint region with or without radiculopathy
depending on the involvement of the sciatic nerve
Pain is usually relieved with rest and/or by unweighting the joint
Unresolved inflammation or a traumatic Etiology may yield a hypomobile SI
joint.
Four common impairments include: pubic symphysis hypomobility, an
anterior rotated innominate, a posterior rotated innominate, and an upslipped
innominate
, Identification
Observation and Findings
With the patient standing, view from the posterior aspect. Look for symmetry in the
heights of the iliac crests, posterior superior iliac spines, and anterior superior iliac
spines. With your hands on these bony landmarks, have the patient march in place
(March Test) and observe movement of the innominate. If there are positive signs,
conduct additional tests, supine and prone lying, to verify SIJ involvement.
