The posterior border of the ala of the ilium, shorter than the anterior, also presents two projections separated by a notch, the posterior superior iliac spine and the posterior inferior iliac spine. …

The PSIS marks the posterior edge of the iliac crest and manifests in some individuals as dimples on the lower back, colloquially called “dimples of Venus.”

The posterior superior iliac spine (PSIS) is the blunt process that marks the posterior end of the iliac crest. It cannot be palpated but a small skin dimple often marks its location.

Mar 11, 2024 · The posterior superior iliac spine (PSIS) is a bony projection of the ilium, located at the posterior end of the iliac crest, which spans between it and the anterior superior iliac spine …

Jul 28, 2025 · Posterior Superior Iliac Spine (PSIS) pain, often assessed by physical therapists, manifests through various etiologies, significantly impacting individuals' daily activities.

The posterior superior iliac spine (PSIS) is a critical component of the pelvis, serving as a junction for ligaments and muscles that support the spine and facilitate movement.

A PSIS injection is used to diagnose pain in the PSIS region, usually caused by inflammation or dysfunction in this area of the body. Benefits of the PSIS injection is proper diagnosis of your …

Everything you need to know to perform accurate PSIS palpation in your SI joint assessments. Dr. Ryan Whelton, DPT, is a licensed physical therapist and founder of the Whelton Methods®.

Jun 14, 2025 · The PSIS is used as a reference point for diagnosing and treating lower back and pelvic disorders, and is involved in various pathological conditions, including sacroiliac joint …

Mar 11, 2025 · The PSIS helps spine doctors assess the balance of the pelvis, which can affect walking, sitting posture, and even how we stand. The PSIS is also part of the sacroiliac joint, …