What is Protrusio arthritis?

Protrusio acetabuli (arthrokatadysis or Otto pelvis) is a relatively rare condition associated with secondary osteoarthritis of the hip. Radiographically, protrusio acetabuli is present when the medial aspect of the femoral head projects medial to Kohler’s (ilioischial) line.

What is bilateral protrusio acetabuli?

Protrusio acetabuli is a condition of the hip where there is medial displacement of the femoral head into the pelvis and the medial aspect of the femoral head lies medial to the ilioischial line.

How is the situation of protrusio acetabuli detected?

Protrusio acetabuli is identified on anteroposterior (AP) radiographs of the pelvis with an acetabular line projecting medial to the ilioischial line.

How is acetabular Protrusio treated?

Surgical treatment of acetabular protrusio during total hip arthroplasty should lateralise the center of the hip to its anatomic position. This typically can be achieved with use of a larger, slightly oversized, rim fit cementless acetabular component and medial morselised femoral head bone autograft.

What is a acetabulum?

The acetabulum is the “socket” of the “ball-and-socket” hip joint. In a healthy hip, the ball fits securely inside the socket and rotates easily within the smooth cartilage lining.

What is Perthes disease?

Legg-Calve-Perthes disease, also known as Perthes disease, is a disorder of the hip in young children that usually occurs between the ages of 4 and 10. The hip is made up of the femoral head — the “ball,” which is the upper part of the femur — and the acetabulum — the “cup” that fits around the femoral head.

What is a shallow acetabulum?

Acetabular dysplasia is referred to as a shallow acetabulum, not being able to provide sufficient coverage for the femoral head and thus leading to instability of the hip joint.

What is coxa profunda?

Background: Coxa profunda, or a deep acetabular socket, is often used to diagnose pincer femoroacetabular impingement (FAI). Radiographically, coxa profunda is the finding of an acetabular fossa medial to the ilioischial line.

What is femoroacetabular impingement?

Hip impingement, or femoroacetabular impingement (FAI), occurs when the femoral head (ball of the hip) pinches up against the acetabulum (cup of the hip). When this happens, damage to the labrum (cartilage that surrounds the acetabulum) can occur, causing hip stiffness and pain, and can lead to arthritis.

What is a acetabular fracture?

The hip joint is a ball and socket joint. The socket part is lined with smooth cartilage and is called the acetabulum, which is part of the pelvis. When the socket is fractured, it is called an acetabular fracture. Such fractures are far less common than fractures to the ball part of the joint.

Is acetabular fracture serious?

This type of fracture is particularly serious because, once the skin is broken, infection in both the wound and the bone can occur. Immediate treatment is required to prevent infection. Open fractures of the acetabulum are rare because the hip joint is well covered with soft tissues.

Can you walk with a acetabular fracture?

On the second day following surgery for an acetabular fracture, patients are usually able to get out of bed. Crutches must be used for eight weeks following surgery, but by 12 weeks most people are able to walk unassisted.

What is protrusio acetabuli in rheumatoid arthritis?

Protrusio acetabuli (arthrokatadysis, Otto pelvis) has been defined as “an affection of the hip joint characterized anatomically by deepening of the acetabulum with mesial displacement of the inner wall” (1). A. W. Otto (2) described this condition in 1824 and attributed it to “abnormal gout.”

What are the causes of protrusio acetabuli in women?

Primary protrusio acetabuli are characterized by progressive protrusio in middle aged women, and may be associated with osteoarthritis. They may be familial . Secondary protrusio acetabuli’s causes include femoral head prosthesis, cup arthroplasty, septic arthritis, central fracture dislocation,…

What causes protrusio acetabuli in Paget’s disease?

Bilateral protrusio acetabuli may be caused by rheumatoid arthritis, Paget’s disease, or osteomalacia. In addition, protrusio acetabuli may be present bilaterally in Paget’s disease, Marfan syndrome, rheumatoid arthritis, ankylosing spondylitis, and osteomalacia;

What are the symptoms of idiopathic protrusio acetabuli?

The symptoms of idiopathic protrusio frequently first develop in adolescence; therefore, this condition should be considered in the differential diagnosis for hip pain in the teenager, 15,16 Patients with protrusio acetabuli typically present with complaints of activity-related pain in the groin region as well as stiffness.