Iliofemoral Ligament, Anterior View

Description

Arising from the anterior inferior iliac spine and adjacent acetabular rim, the iliofemoral ligament fans inferiorly to the intertrochanteric line of the proximal femur, forming the characteristic inverted Y on the anterior hip capsule. Its lateral limb runs toward the greater trochanter side of the intertrochanteric line, while the medial limb courses closer to the lesser trochanter side, spanning the anterior aspect of the femoral neck. Superiorly, the ligament sits inferior to the iliac crest and anterior to the acetabulum, with the pubis lying medial and the ischium posteroinferior in the pelvic ring. Hip joint congruity is framed by the acetabulum and femoral head. Clear landmarks. Because the iliofemoral ligament is the dominant checkrein to hip extension and anterior translation of the femoral head, an anterior view clarifies why passive standing can be maintained with low muscular demand when the hip is extended. Anterior capsulotomy and capsular repair during total hip arthroplasty or hip arthroscopy often intersect its fibers, and insufficient closure can contribute to postoperative anterior instability or subluxation, especially when combined with excessive femoral anteversion or aggressive capsular resection. The Y-shaped split also helps teach where tension concentrates during forced hyperextension injuries and anterior dislocation patterns. Orthopaedic anatomy courses, sports medicine lectures, and surgical atlases on anterior approaches to the hip can use this plate to anchor discussions of the hip capsule, intertrochanteric line landmarks, and stability mechanisms in extension. It also fits well in patient-facing materials explaining why hip extension may feel blocked after capsular tightening procedures and why targeted anterior hip stretching must respect capsular limits. Anatomical accuracy verified by SciePro's Medical Advisory Board.