Superior Pubic Ramus Of The Pubis Bone

Description

Superior pubic ramus anatomy is centered on the bar of bone extending from the body of the pubis at the pubic symphysis medially toward the acetabular region laterally. Along its superior border runs the pecten pubis (pectineal line), continuous with the pelvic brim and meeting the iliopubic eminence near the junction with the ilium. The anterior surface lies immediately inferior to the pubic crest and pubic tubercle, while the inferior margin helps frame the superior aspect of the obturator foramen. Medial and lateral ends are both in view. Clinically, the superior pubic ramus is a key landmark for groin surgery because the pectineal line anchors the pectineal (Cooper) ligament, a common fixation point in open and laparoscopic inguinal and femoral hernia repairs. Stress fractures and pelvic ring injuries often involve the pubic rami, and appreciating the ramus as part of a continuous ring with the ilium and ischium helps explain why ipsilateral sacral ala or posterior arch injuries may accompany anterior ramus disruption. Surface relief on the ramus also supports teaching of pelvic brim anatomy and obstetric dimensions, since the pecten contributes to the linea terminalis separating false and true pelvis. A hard, unforgiving contour. Use this illustration in gross anatomy and musculoskeletal radiology teaching to orient learners to the bony margins that guide interpretation of AP pelvis radiographs and CT bone windows, where pubic rami fractures, symphyseal diastasis, and osteitis pubis are assessed. It also fits orthopedic and general surgery atlases covering acetabular approaches, pelvic fixation planning, and hernia repair anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.