Sacroiliac Joint Hypermobility Biomechanics and What it Means for Health Care Providers and Patients

Abstract

Sacroiliac joint dysfunction is complex with numerous etiologies. Proper stabilization of the sacroiliac joint allows for effective transfer of loads between the trunk and the lower extremities during static and dynamic activities, while maintaining a freely nutating motion. A loss of integrity of the stabilizing soft‐tissue structures inhibits the ability to transmit axial loads and creates uneven stresses on the joint and surrounding tissues. Hypermobility of the sacroiliac joint can be caused by ligamentous instability or secondary to adaptive biomechanical changes and increased stresses affecting the joints of the pelvis. This article examines the current evidence related to the loss of stability on sacroiliac joint pain and dysfunction. A review of exercise goals for the hypermobile joint is included.

Investigation of The Pain and Muscle Strength of Individuals with Sacroiliac Joint Dysfunction and Its Effect on Postural Stability

“…Sacroiliac joint dysfunction (SIJD) which occurs occurring in 16-30% of patients is a common cause of, low back pain (14) . Individuals with SIJD have a lower quality of life, and they frequently complain of discomfort, disability, and activity restrictions [15,16,17]. The Balance is an important component for activities of daily living, and there are still lack of evidence about the effect of SIJD and balance.…”

“…Despite these sorts of effects, there was no discernible difference between the two groups in terms of prokin perilength and medspeed measures. The anterior tibialis initiates muscular activity in response to backward instability, which is followed by the quadriceps and abdominal muscles since we did not make any evaluation collection strategies use [16]. A person's center of mass can be brought into a stable posture by compansating motions at the ankle during silent stance and minor disturbances [26].…”

Self-Treatment of Chronic Low Back Pain Based on a Rapid and Objective Sacroiliac Asymmetry Test: A Pilot Study

“…This could be from an accidental sprain or tear, the effect of relaxin in pregnancy, the weak collagen in hypermobility, or the loss of collagen from old age. These joints absorb the shock of every step and are strained with prolonged sitting, lifting, or bending forward, which explains why they are surrounded by more ligaments than any other joint in the body [ 21 ]. When the ligaments are weak, any one of these activities can displace the innominate bone, causing painful SI asymmetry, which may be why half of the participants preferred a combination of the SIFFT-E and the pelvic support belt to be used as needed.…”

“…To support sacroiliac stability and potentially improve asymmetry, function, and pain [ 16 , 17 , 20 , 21 ], participants in group 2 were fitted with a pelvic stabilizer belt (acknowledgments). They were taught how to locate their ASISs and told to always place the belt below these ASISs as the iliac bones flare outward and a belt squeezing the iliac crests may open the sacroiliac joints, making them more unstable.…”