Protrusio acetabuli is a rare pathologic morphology of the hip in which the femoral head protrudes into the true pelvis [48]. It is a reported cause of hip pain and osteoarthritis in young adults [21].
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. 1. Protrusio acetabuli could be primary or secondary.
In protrusio deformity, there is medial displacement of the femoral head in that the medial aspect of the femoral cortex is medial to the ilioischial line. The socket is too deep and may protrude into the pelvis.
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).
Total hip arthroplasty is the recommended treatment for the older adult with protrusio acetabuli and degenerative changes.
Protrusio acetabuli is identified on anteroposterior (AP) radiographs of the pelvis with an acetabular line projecting medial to the ilioischial line.
Cam impingement occurs because the ball-shaped end of the femur (femoral head) is not perfectly round. This interferes with the femoral head's ability to move smoothly within the hip socket. Pincer impingement involves excessive coverage of the femoral head by the acetabulum.
Coxa vara is an unusual hip condition in which there is a discrepancy of growth in the round ball of the hip (femoral head) and the upper end of the thigh bone. This discrepancy leads to a shepherd's crook deformity of the hip.
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.
Acetabular protrusion most commonly occurs as a chronic erosion of the acetabulum in patients with osteoporosis or other disease of the bone (e.g., osteomalacia, ankylosing spondylitis). Also, as in the case of acute trauma, force transmitted through joint can cause failure of acetabular integrity.
During hip replacement surgery, your surgeon removes the diseased or damaged parts of your hip joint and inserts the artificial joint. During hip replacement, a surgeon removes the damaged sections of the hip joint and replaces them with parts usually constructed of metal, ceramic and very hard plastic.
On each side of the pelvis (hip) bone is the acetabulum, or socket, of the ball-and-socket joint. The surface of the acetabulum is the only part of the pelvis replaced in either hip replacement. The labrum is a ring of fibrocartilage that circles the rim of the acetabulum, deepening the socket.
On each side of the pelvis (hip) bone is the acetabulum, or socket, of the ball-and-socket joint. The surface of the acetabulum is the only part of the pelvis replaced in either hip replacement. The labrum is a ring of fibrocartilage that circles the rim of the acetabulum, deepening the socket.
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.
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.
Wiberg angle (red lines) should be between 25 and 40 degrees.
Protrusio acetabuli is an uncommon defect of the acetabulum. The acetabulum is the socket that receives the femoral head to make the hip joint. The hip bone of the pelvic bone/girdle is composed of three bones, the ilium, the ischium and the pubis.
DRG Group #564-566 - Other musculoskeletal system and connective tissue diagnoses with MCC.
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code M24.7. Click on any term below to browse the alphabetical index.
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code M24.7 and a single ICD9 code, 718.65 is an approximate match for comparison and conversion purposes.