Organs & Glands

Sacroiliac Joint

Articulatio sacroiliaca

Overview

The sacroiliac joints are located where the wings of the ilium articulate with the sacrum. They are low-motion joints responsible for transferring propulsive forces from the hindlimbs to the axial skeleton. Strong ligaments surround the joints and provide stability while allowing limited movement. Although distant from the foot, sacroiliac joint dysfunction can cause hindlimb lameness or stiffness that alters overall gait and loading patterns. It is a common cause of poor performance in sport horses and can coexist with other orthopedic issues.

Quick Answer: The low-motion joints where the wings of the ilium articulate with the sacrum. They transfer propulsive force from the hindlimbs to the spine and are a common site of dysfunction that causes poor performance.

Clinical Significance

Sacroiliac dysfunction is difficult to diagnose definitively. Clinical signs include poor hindlimb engagement, reduced performance, and sometimes asymmetry. Diagnosis often involves a combination of clinical examination, diagnostic analgesia, and advanced imaging (scintigraphy or ultrasound). Treatment is usually medical and includes rest, medication, and controlled rehabilitation.

What Horse Owners Should Know

Poor hind-end engagement, reluctance to collect, or reduced performance that does not respond to basic management should be evaluated. Correct saddle fit and balanced work help protect the region.

Frequently Asked Questions

What are the clinical concerns for the Sacroiliac Joint?

Sacroiliac dysfunction is difficult to diagnose definitively. Clinical signs include poor hindlimb engagement, reduced performance, and sometimes asymmetry. Diagnosis often involves a combination of clinical examination, diagnostic analgesia, and advanced imaging (scintigraphy or ultrasound). Treatment is usually medical and includes rest, medication, and controlled rehabilitation.

What should horse owners know about the Sacroiliac Joint?

Poor hind-end engagement, reluctance to collect, or reduced performance that does not respond to basic management should be evaluated. Correct saddle fit and balanced work help protect the region.

Explore This Structure in 3D

See the Sacroiliac Joint on our interactive 3D horse model. Open 3D Model