A normal SI joint can move forward and downward (nutation) and backward and upward (counternutation). The primary movements within the sacroiliac joint are front-and-back (anterior-posterior). Movements also occur along different planes, such as upward and downward.

Explore the anatomy and structure of the sacroiliac joint in the pelvis with Innerbody's 3D model. The sacroiliac joint is a synovial planar joint formed in the pelvis between the ilium and the sacrum.

2023年10月30日 · The sacroiliac joints connect the hip bones posterolaterally, while the pubic symphysis connects them anteriorly. The main function of the joint is to bear the weight of the axial skeleton and transfer it to the hip bones.

SI joint pain is commonly found 10 cm caudally and 3 cm laterally from the patient's posterior superior iliac spine. SI joint pain is commonly referred to the buttocks, lower lumbar region, groin, and lateral thigh.

2017年1月6日 · The SI joint is mainly held together by bands of connective tissue known as ligaments. These ligaments hold the sacrum (base of the spine) and the ilia (hip bones) together to make up the two sacroiliac joints.

2025年1月18日 · The sacro-iliac (SI) joint is a critical component of the human skeletal system, linking the spine to the pelvis. It bears the weight of the upper body and acts as a shock absorber between the upper and lower body.

2023年4月8日 · In this article, we shall look at the anatomy of the sacroiliac joint – its structure, neurovascular supply, and clinical correlations. Articulating surfaces of the sacroiliac joint. Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way.

The sacroiliac joints link the pelvis and lower spine. These two joints are made up of the bony structure above the tailbone, known as the sacrum, and the top part of the pelvis, known as the ilium. The sacroiliac joints support the weight of the upper body when standing.

2025年3月3日 · The sacroiliac joints are located at the base of the spine. These joints connect the triangular-shaped sacrum to the hip on each side of the spine. The sacroiliac joint is C-shaped and only 1 to 2 millimeters wide.

2025年1月28日 · What Is the SI Joint? Your sacroiliac (SI) joints are where your spine (sacrum) and pelvis (iliac) connect. Your sacrum is the triangle-shaped bone at the bottom of your spine, and your...