Posterior perspective of the Superior Gluteal Artery

Description

Seen from a posterior perspective, the superior gluteal artery emerges from the internal iliac artery within the pelvis and courses laterally toward the greater sciatic foramen, where it passes superior to the piriformis to enter the gluteal region. Once outside the pelvis it divides into superficial and deep branches that fan superiorly and laterally across the deep surface of gluteus medius and gluteus minimus, with periosteal relationships along the posterior ilium near the iliac crest. Bony landmarks in this view include the sacrum in the midline, the posterior iliac blades bilaterally, and the coccyx inferiorly, with the hip joints laterally at the acetabula and femoral heads. Major posterior neural structures such as the sciatic nerve can be oriented inferior to piriformis, helping distinguish the superior gluteal neurovascular plane from the infrapiriform compartment. For surgical anatomy, the superior gluteal artery matters because it is the dominant blood supply to gluteus medius and minimus, muscles that maintain pelvic stability during gait. Injury can occur with posterior approaches to the hip, deep intramuscular injections placed too medially or inferiorly, or pelvic fractures that disrupt the posterior ilium and greater sciatic notch. Bleeding from the superior gluteal artery is a known source of gluteal compartment hematoma and may require angiographic embolization, while its close association with the superior gluteal nerve explains why abductor weakness can accompany vascular trauma in the same corridor. Respect the foramen. Teaching and publishing use cases include pelvic wall and gluteal region modules in gross anatomy, radiology correlation for CT angiography of pelvic hemorrhage, and operative atlases describing posterior hip exposure or management of acetabular and iliac wing fractures. It also supports patient education graphics for post-traumatic pelvic bleeding and targeted injection safety in the upper outer quadrant of the buttock. Anatomical accuracy verified by SciePro's Medical Advisory Board.