Definitions for "SACROILIAC JOINT"
The joint made between the articular surfaces of the sacrum and ilium. Partly fibrous and partly synovial. image
A synovial joint formed between the medial surface of the ilium and the lateral aspect of the upper sacral vertebrae; a fibrous joint, comprising and surrounded by very strong ligamentous structures; major function is to transmit body weight, but also has some movement.
one of two joints at the base of your back that are often fixated and can cause low back pain