The posterior column is composed of the greater and lesser sciatic notches, posterior wall and dome of the acetabulum, and ischial tuberosity. Interactive cases are presented in the menubar to test your knowledge on hipprostheses. This overview focusses on the normal findings and complications of cemented versus non-cemented hip arthroplasties.
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The anterior column is composed of the anterior ilium, anterior wall and dome of the acetabulum, and superior pubic ramus. Radiography is the primary imaging method for the evaluation of Total Hip Arthroplasty. The column principle divides the acetabulum into the anterior and posterior columns and becomes important when considering acetabular fractures and their management. The lip-shaped acetabular labrum is a fibrocartilaginous structure attached to the margin of the acetabulum, increasing the acetabular articular area. As a result, more than half of the femoral head fits within the acetabulum. The bone on the inner surface of the pelvis deep to the acetabular fossa is termed the quadrilateral plate and has clinical importance in classifying acetabular fractures. The acetabular fossa extends superiorly from the acetabular notch. Minimal acetabular rim degenerative changes in the right hip. On the other hand, only 21 of the patients with hip arthritis on x-rays were frequently painful. Only 16 of hips in patients with frequent hip pain had x-ray evidence of hip arthritis. This depression is bridged with the transverse ligament of the hip, completing the circle and creating the acetabular foramen. The acetabular floor has a rough depression called the acetabular fossa that hosts the ligamentum teres. In the Framingham study, the researchers looked at the hip x-rays of 946 patients. The acetabular margin forms three quarters of a circle with a deficiency located anteroinferiorly called the acetabular notch. The fusion is complete between 20 and 25 years of age 1.
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The three bones are initially separated by a Y-shaped triradiate cartilage that begins to fuse after puberty. Gross anatomyĪll three bones of the pelvis (the ilium, ischium, and pubis) together form the acetabulum. Retroversion is visualized by partial or complete lateral projection of the anterior wall in relation to the posterior wall, which was first described by Reynolds et al.as the ‘cross over sign’ (Fig. 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. In a normally anteverted hip, the contour of the anterior wall is projected completely medially to the contour of the posterior wall.