What is Ilioischial line?

The ilioischial line, also known as the Köhler line, is a radiologic feature seen in the AP pelvis view and serves to assess the posterior acetabular column 1-4.

What is pelvic teardrop?

The pelvic teardrop, also known as U-figure or Köhler teardrop, is a radiographic feature seen on pelvic x-rays and results from the end-on projection of a bony ridge running along the floor of the acetabular fossa.

How do you classify acetabular fractures?

The Judet and Letournel classification is the most widely used classification system for acetabular fractures. It classifies acetabular fractures into ten major fracture patterns, which consist of five simple patterns and five complex patterns 1,2.

What position projection or method is useful in diagnosing fractures of the acetabulum?

2. Anteroposterior radiograph (AP pelvic radiograph) An AP view of the pelvis is required for all patients with a suspected acetabular fracture. The radiograph is obtained with the patient in the supine position and is centered on the symphysis pubis.

What do Judet views demonstrate?

The Judet view is comprised of two projections, first the iliac oblique for assessment of the posterior column and anterior wall of the acetabulum; secondly, the obturator oblique view demonstrating the anterior column of the pelvis along with the posterior wall of the acetabulum.

How do you take obturator oblique view?

Obturator oblique view is obtained on a supine patient with the injured side of the pelvis rotated anteriorly at 45°. The x-ray beam is directed vertically toward the affected hip. It is useful to assess the obturator ring, anterior column (iliopectineal line), and posterior wall of the acetabulum.

When should a hip be Xrayed?

A hip X-ray can help find the cause of common signs and symptoms, such as limping, pain, tenderness, swelling, or deformity in the hip area. It can detect broken bones or a dislocated joint. If hip surgery is required, an X-ray may be taken to plan for the surgery and, later, to see the results of the operation.

What is Apview?

Anteroposterior: From front to back. When a chest x-ray is taken with the back against the film plate and the x-ray machine in front of the patient it is called an anteroposterior (AP) view. As opposed to from back to front (which is called posteroanterior).

What is a posterior column fracture?

Posterior column fractures involve the posterior portion of the acetabulum, disconnecting it from the sciatic buttress (Fig 6, Movie 3). The fracture runs from the greater sciatic notch through the acetabulum and the obturator foramen and into the ischiopubic ramus.

Where is your acetabulum bone located?

The acetabulum is the cup-shaped socket on the lateral aspect of the pelvis, which articulates with the head of the femur to form the hip joint. The margin of the acetabulum is deficient inferiorly.

What techniques demonstrate acetabular fracture?

Imaging Studies X-rays of acetabular fractures are taken from a number of different angles to show the pattern of the fracture and how out of place the bones are (displacement). Computed tomography (CT) scans. Because of the complex anatomy of the pelvis, a CT scan is commonly ordered for acetabular fractures.

How do you do Judet view?

Where does the ilioischial line begin and end?

The ilioischial line also begins at the medial border of the iliac wing and extends along the medial border of the is- chium2-4toendattheischialtuberosity(Fig.4).Thisdeﬁnes the posterior column of the pelvis (Fig. 7). As mentioned above, the posterior column is well demonstrated by a 45-

What is the difference between anterior and posterior iliac column?

The posterior column is characterized by the dense bone at and the inferior pubic ramus. The anterior column extends from the wall of the acetabulum. Fractures involving the anterior column commonly exit below the anterior-inferior iliac spine as shown by the heavy dotted line.

What is the curved notch between the posterior inferior iliac and ischial?

The curved notch between the posterior inferior iliac spine and the ischial spine is the greatersciaticnotch,andthenotchbetweentheischialspine and the ischial tuberosity is the lesser sciatic notch. The su- periorramusoftheischiumextendsinferiorlyfromthebody to the ischial tuberosity.

How is the iliac oblique image used to diagnose a fracture?

The iliac oblique image is also useful in ruling out fractures crossing the posterior of the bone, as in this example (B). The intact posterior column in a case such as this eliminates the associated both column and the anterior posterior hemi-transverse fractures from the differential diagnosis.