Anterior Obturator Tubercle, Superior View

Description

Anterior obturator tubercle sits on the internal (pelvic) surface of the pubic bone near the superior pubic ramus, bordering the anterosuperior margin of the obturator foramen. From a superior viewpoint, the tubercle appears as a discrete bony prominence medial to the acetabular region and lateral to the pubic body and symphyseal area, with the pelvic brim and pecten pubis (pectineal line) providing nearby landmarks. The rim of the obturator foramen frames the inferolateral field, orienting the viewer to the transition from the pubis to the ischial contribution of the foramen. Pelvic surgeons and radiologists care about this tubercle because it helps define the anterosuperior contour of the obturator region where the obturator canal begins at the superior margin of the obturator foramen, a corridor transmitting the obturator nerve and vessels. Obturator hernia repair, extraperitoneal pelvic approaches, and preperitoneal mesh placement benefit from reliable bony landmarks on the internal pubic surface, and this fixed superior perspective clarifies how close the tubercle lies to the pelvic brim and the expected course toward the obturator neurovascular bundle. Small landmark, big consequences. Use this illustration in pelvic osteology teaching (gross anatomy, orthopedics, radiology), in atlases covering the pubis and obturator foramen, and in operative guides discussing obturator hernia, pelvic fracture mapping of the superior pubic ramus, or safe zones for dissection along the internal pubic surface. Anatomical accuracy verified by SciePro's Medical Advisory Board.