The acetabulum (/ ˌ æ s ɪ ˈ t æ b j ə l ə m /; [1] pl.: acetabula), also called the cotyloid cavity, is a concave surface of the pelvis. The head of the femur meets with the pelvis at the acetabulum, forming the hip joint. [2] [3]

5 days ago · The acetabulum is a large socket on the lateral face of the hip bone that articulates with the head of the femur to form the hip joint. Anatomically, the acetabulum is formed by the fusion of the three pelvic bones: the ilium, ischium, and pubis.

Oct 8, 2021 · What is an acetabular fracture? An acetabular fracture is a break in your hip socket. Your hip is a “ball-and-socket” joint. Your acetabulum, which is part of your pelvis, forms the socket. Your femoral head, which is the upper end of your femur (thigh bone), forms the ball.

Acetabulum fractures are pelvis fractures that involve the articular surface of the hip joint and may involve one or two columns, one or two walls, or the roof within the pelvis.

Oct 6, 2017 · Fractures of the acetabulum are challenging orthopedic injuries to repair, at times leaving multiple small fragments of fractured bone and cartilage. Compounded by the location in a region challenging in which to work and fraught with risk, these "puzzle pieces" must be brought back together to restore hip function and mobility.

Jan 7, 2025 · The acetabulum (plural: acetabula) is the large cup-shaped cavity on the anterolateral aspect of the pelvis that articulates with the femoral head to form the hip joint. All three bones of the pelvis (the ilium, ischium, and pubis) together form the acetabulum.

May 22, 2016 · The acetabulum is the socket of the ball-and-socket hip joint. Although simplicity is suggested in its most basic understanding as a containing device for the femoral head, the acetabulum in reality is a complex and elegantly designed structure; together with the labrum it is responsible for both the high stability of the hip joint and the ...

Acetabulum, located on the lateral surface of the hip bone, is a deep, cup-shaped hemispherical socket. Its orientation is lateral, downward, and forward. It plays a crucial role as is it articulates with the femur’s head to form the hip joint. Within the acetabulum, we can observe two distinct regions: 1) acetabular fossa, and 2) lunate ...

Jun 13, 2020 · The acetabulum, which lies in the “concavity of the arch” created by the two columns, transmits load superiorly via this arch. The two columns connect at an angle of about 60° anteroinferior to the sacroiliac joint and just superior to the greater sciatic notch.

The acetabulum is the confluence of the ischium (inferior and lateral), ilium (superiorly), and pubis (medially), at the triradiate cartilage. At the anteroinferior margin, the rim is not complete, with a gap known as the acetabular notch. The acetabulum provides coverage for 170° of the surface of the femoral head.