Hip Impingement - Causes, Types, Symptoms, Diagnosis, Treatment
Hip impingement occurs when something prevents the smooth, painless, and free movement of the ball-and-socket joint. Hip impingement may be caused by a misshapen femoral head, deformed femoral neck, or a hip socket that covers too much of the femoral head.
Femoroacetabular impingement syndrome - Radiopaedia.org
2024年6月18日 · Femoroacetabular impingement is an intra-articular or internal form of impingement, where structural changes combined with dynamic factors as repetitive abnormal contact of the acetabulum and the femoral head-neck junction lead to mechanical stress and shear forces on the labrum and chondral surfaces and subsequent damage 1-4.
Femoral head-neck offset (femoroacetabular impingement)
2021年12月4日 · Femoral head-neck offset is used for quantitative characterization of the femoral head-neck junction, in particular in the setting of suspected femoroacetabular impingement for the detection of cam morphology and preoperative planning.
Femoroacetabular Impingement | Radsource
A convex bump (yellow arrowheads) is present at the anterior femoral head-neck junction. An area of chondral loss (red arrows) is present on the acetabular side of the joint. Subtle subchondral degenerative changes (red arrowhead) are located on the corresponding femoral side of the joint. Figure 4:
Femoroacetabular Impingement (FAI) - Knee & Sports - Orthobullets
2024年10月29日 · Femoroacetabular impingement (FAI) is the abnormal contact between the femur and acetabulum which may lead to labral damage, various degrees of chondral injury and progressive hip pain.
Femoroacetabular Impingement: Radiographic …
Anterior impingement sign (left) is positive, with painful forced internal rotation in 90° of flexion. In extreme forms, there is unavoidable passive external rotation of hip during hip flexion (“Drehmann's” sign, center). “Posterior impingement” sign is positive when there is painful forced external rotation in maximal extension (right).
Treatment of Anterior Femoroacetabular Impingement with Combined Hip ...
We present our technique for treating femoral (cam) impingement which combines hip arthroscopy and a limited open anterior head-neck osteoplasty as a less invasive and more conservative surgical approach, which still adequately addresses the anatomy and pathophysiology of this disease.
Anterior Femoroacetabular Impingement: A Diverse Disease …
The defining characteristic of these disorders is an abnormal osteocartilagenous prominence located at the anterolateral femoral head-neck junction. The deformity decreases the head-neck offset, increases the femoral head radius of curvature and …
Femoroacetabular impingement: a review of diagnosis and …
Cam impingement is a result of reduced anterior femoral head neck offset. Pincer lesion is caused by abnormalities on the acetabular side. FAI due to either mechanism can lead to chondral lesions and labral pathology. Patients present with groin pain and investigated with radiographs, CT and MRA. Surgery is the treatment of choice.
Femoroacetabular Impingement - PubMed
Cam deformity is an abnormal bony prominence or "bump" at the junction of the femoral head and neck resulting in an aspherical-shaped head, occurring most commonly along the anterosuperior femoral head-neck area.