acetabulum


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Related to acetabulum: hip joint

acetabulum

 [as″ĕ-tab´u-lum] (pl. aceta´bula) (L.)
the cup-shaped cavity on the lateral surface of the hip bone in which the head of the femur articulates.
 Acetabulum, showing the cup-shaped cavity (A), and its articulation with the femur (B). From Dorland's, 2000.

ac·e·tab·u·lum

, pl.

ac·e·tab·u·la

(as-ĕ-tab'yū-lŭm, -lă), [TA]
A cup-shaped depression on the external surface of the hip bone, with which the head of the femur articulates.
Synonym(s): cotyle (2) , cotyloid cavity
[L. a shallow vinegar vessel or cup]

acetabulum

(ăs′ĭ-tăb′yə-ləm)
n. pl. acetabu·la (-lə)
1. Anatomy The cup-shaped cavity at the base of the hipbone into which the ball-shaped head of the femur fits.
2. Zoology A cavity or socket in the body of an insect into which an appendage fits.
3. Zoology A cup-shaped structure, such as the sucker of a tapeworm or leech.

ac′e·tab′u·lar (-lər) adj.

Acetabulum

A deep semispherical socket cavity in the lateral surface of the hip, with which the femoral head articulates, located at the convergence of the ilium, ischium, and pubis. The acetabulum is functionally comprised of two columns (anterior and posterior) and two walls (anterior and posterior).

ac·e·tab·u·lum

, pl. acetabula (as-ĕ-tab'yū-lŭm, -lă) [TA]
A cup-shaped depression on the external surface of the hip bone, with which the head of the femur articulates.
Synonym(s): cotyloid cavity.
[L. a shallow vinegar vessel]

acetabulum

(as″ĕ-tab′ū-lŭm) [L., a little saucer for vinegar]
Enlarge picture
ACETABULUM OF RIGHT HIP BONE (FEMALE)
The cavity or depression on the lateral surface of the innominate bone (hip bone). This bone is composed of the three bones ilium, ischium, and pubis, and provides the socket into which the head of the femur fits. acetabular (-lăr), adjective See: illustration

acetabulum

The socket in the side of the bony pelvis into which the spherical head of the thigh bone (FEMUR) fits. The word is derived from the Latin acetum , vinegar and abulum , the diminutive of abrum , a container. The acetabulum was thought to resemble a small vinegar cup.

acetabulum

one of two cup-shaped sockets in the PELVIC GIRDLE articulating with the ball of the FEMUR.

Acetabulum

The large cup-shaped cavity at the junction of pelvis and femur or thigh bone.

ac·e·tab·u·lum

, pl. acetabula (as-ĕ-tab'yū-lŭm, -lă) [TA]
A cup-shaped depression on the external surface of the hip bone, with which the head of the femur articulates.
Synonym(s): cotyloid cavity.
[L. a shallow vinegar vessel]
References in periodicals archive ?
There have not been many studies conducted on the acetabulum within African populations and no studies on the acetabula of Black African populations within KwaZulu-Natal.
Protrusio acetabuli or central fracture dislocation also involving posterior wall or column of the acetabulum.
(29) More recently, synovial herniation pits are postulated to represent sequelae of repeated contact between the femoral head-neck junction and acetabulum, supported by at least one study showing a higher incidence in patients with femoroacetabular impingement compared to the normal population (33% versus 5%, respectively).
We assume, that younger patients have denser and less elastic bones which may result in loss of bone expansion in response to press fit technique as the acetabulum has to expand a bit to accommodate the fractionally larger acetabular cup8.
Effects of degree of acetabular rotation after triple pelvic osteotomy on the position of the femoral head in relationship to the acetabulum. Veterinary Surgery, v.31, n.4, p.398-403, 2002.
Type IIa meant immature hips (positioned in the acetabulum but likely to subluxate).
A hip X-ray revealed the disappearance of the right femoral head and destructive changes in the right acetabulum; nevertheless, the right femoral head was not collapsed before two months (Figure 3).
The acetabular labrum is a triangular fibrocartilaginous structure that forms a horseshoe-shaped attachment to the acetabular rim, which connects the acetabulum to the underlying transverse acetabular ligament [Figure 1]a.[sup][1] Up to 90% of symptomatic patients with developmental dysplasia of the hip (DDH) are found to combine with lesions of acetabular labrum.[sup][2] The most common presentations of the acetabular labrum lesions are hypertrophy, laceration, and/or cyst formation.[sup][3],[4] Nevertheless, a unique hip joint condition is observed recently in several symptomatic DDH patients [Figure 1]b.
The complex anatomy of the pelvis and the acetabulum makes preoperative assessment of such abnormal bony deficiencies in revision hip arthroplasty notoriously difficult.
Radiograph of pelvis with both hip joints in anteroposterior view showed widening of pubic symphysis, bilateral shallow acetabulum, abnormal contour of bilateral femoral head with increased neck shaft angle (coxa valga deformity), enlarged and elongated bilateral greater trochanter, superolateral migration of bilateral femoral head overlying adjacent to iliac bones, and slender proximal femoral shafts (Figure 5(a)).
The gaps between the metal shell and the acetabulum were filled with bone trabeculae (Figure 2).