Disease Profiles 5 Flashcards
FAI
Femoroacetabular Impingement Syndrome
Femoroacetabular Impingement Syndrome
Altered morphology of the femoral neck and/or acetabular causes abutment of the femoral neck on the edge of the acetabulum during movement
FAI: What movements are impacted?
Flexion
Adduction
Internal rotation
FAI: Aetiology
Hip bone misformation during the childhood growth years
FAI: 3 types
CAM type impingement
Pincer type impingement
Mixed impingement
FAI: CAM type Impingement - Pathophysiology
Assymetrical femoral head with reduced head to neck ratio causes limited smooth rotation
A bump forms on the edge of the femoral head to grind against the cartilage
FAI: CAM type Impingement - Present in what patient groups?
Young athletic males
FAI: CAM type Impingement - Can be related to what disease?
Slipped upper femoral epiphysis
FAI: Pincer type Impingement - Pathophysiology
Acetabular overhang
FAI: Pincer type Impingement - More common in what sex?
Females
FAI: Pincer type Impingement - Impact on the labrum
Can be crushed under the prominent rim of the acetabulum
FAI: Consequences on the joint (3)
Damage to labrum and tears
Damage to cartilage
Osteoarthritis in later life
FAI: Clinical Presentation - Pain is related to what?
Activity - flexion and rotation
FAI: Clinical Presentation - Have difficulty doing what motion?
Sitting
FAI: Clinical Presentation - What is observed on examination?
C-sign positive - hand is cupped over the greater trochanter with the thumb posterior and the fingers gripping deep into the anterior groin
FADIR Provocation Test positive - Anterior groin or anterolateral hip pain during flexion, adduction and on internal rotation
FAI: Investigation required (2)
X-Ray
MRI
FAI: Management for CAM
Arthroscopic or open surgery
FAI: Management for labral tears
Arthroscopic or open debridement
FAI: Management for Pincer impingement
Peri-acetabular Osteotomy
FAI: Management for older patients with secondary Osteoarthritis
Arthroplasty or Total Hip Replacement
Idiopathic Transient Osteonecrosis of the Hip
Local hyperaemia and impaired venous return with marrow oedema and increased inter-medullary pressure
Idiopathic Transient Osteonecrosis of the Hip: Epidemiology of sexes
More common in Females
Idiopathic Transient Osteonecrosis of the Hip: 2 most common patient groups
Middle aged men
Pregnant women in the third trimester
Idiopathic Transient Osteonecrosis of the Hip: Clinical Presentation (2)
Unilateral progressive groin pain
Difficulty weight bearing