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Elementary fracture Description Associated fractures Description Posterior wall: This is the most common variety of acetabular fracture. It typically occurs due to dashboard injury; when a person travelling in a vehicle involved in a head-on collision, the force applied over the flexed knee travels along the femur bone to the head of the femur, breaking the posterior wall of the acetabulum.
When either abnormality is present, it changes the position of the femoral head in the hip socket. The increased stresses that the femur and or acetabulum experience may lead to a fracture of the acetabular rim or a detachment of the overstressed labrum. [4] Women are more susceptible to acetabulum labrum tears due to their pelvic anatomy.
Buck's traction, involving skin traction. It is widely used for femoral fractures, low back pain, acetabular fractures and hip fractures. [2] Skin traction rarely causes fracture reduction, but reduces pain and maintains the length of the bone. [2] Dunlop's traction – humeral fractures in children; Russell's traction; Halo-gravity traction
Hip dislocations are classified by fracture association and by the positioning of the dislocated femoral head. [7] [8] A posteriorly positioned head is the most common dislocation type. [5] Hip dislocations are a medical emergency, requiring prompt placement of the femoral head back into the acetabulum . [9]
Intraoperative acetabular fracture. Intraoperative fractures may occur. After surgery, bones with internal fixation devices in situ are at risk of periprosthetic fractures at the end of the implant, an area of relative mechanical stress. Post-operative femoral fractures are graded by the Vancouver classification. [31] [32]
with a fracture of the acetabular floor V with a fracture of the femoral head: See also. Acetabular fracture; References This page was last edited on 22 June 2023 ...
In radiography the presence of a "crossover sign" is produced when the posterior wall of the acetabulum crosses the anterior wall before reaching the acetabular roof. It is a sign of acetabular retroversion and it has been linked with overcoverage and pincer impingement. Nevertheless, this sign has been described in 6% of the normal population.
At the lower part of the acetabulum is the acetabular notch, which is continuous with a circular depression, the acetabular fossa, at the bottom of the cavity of the acetabulum. The rest of the acetabulum is formed by a curved, crescent-moon shaped surface, the lunate surface, where the joint is made with the head of the femur.