Femeroacetabular impingement syndrome Flashcards
What is femeroacetabular impingement syndrome?
This is a condition in which there is an altered morphology of the femoral neck and/or acetabulum, causing catching of the femoral neck on the edge of the acetabulum during movement
What are the 3 types of lesion found in femeroacetabular impingement syndrome?
- CAM lesion
- Pincer lesion
- Mixed lesion
What actions are usually affected by femeroacetabular impingement syndrome?
Flexion
Adduction
Internal rotation
What is meant by a CAM type impingement?
This is a deformity of the femur causing an asymmetric femoral head with a decreased head:neck ratio
Who is most at risk of CAM lesions?
Young, athletic males
SCFE
What is meant by a pincer type inpingement?
This is an acetabular deformity resulting in an acetabular overhang
Who is most at risk of developing a pincer type impingement?
Females
What are some possible complications of femoroacetabular impingement syndrome?
Tearing of the labrum
Damage to cartilage
Osteoarthritis
What are some clinical signs associated with femeroacetabular impingement syndrome?
Difficulty sitting
Positive C sign (Patient will locate pain using a C shaped hand into their hip)
Positive FADIR provocation testing
How is diagnosis of femeroacetabular impingement syndrome made?
X-ray
CT
MRI
How may asymptomatic impingement syndrome be managed?
Observation
How may CAM lesions be managed?
Arthroscopic or open surgery
How may pincer lesions be managed?
Peri-acetabular osteotomy
How many labral tears be managed?
Surgical debridement
How may femeroacetabular impingement syndrome be managed in older patients with secondary OA?
Arthroplasty
