hip conditions Flashcards
what type of conditions can cause hip problems
Vascular Infective/inflammatory Trauma Autoimmune Metabolic Iatrogenic Neoplastic
what is femoroacetabular impingement syndrome
altered morphology of femoral neck and/or acetabular
-causes abutment of the femoral neck on the edge of the acetabulum during movement
what are the two types of impingement in FAI
- CAM type
- pincer type
what is a cam type impingement
femoral deformity
-asymmetric femoral head with decreased head:neck ratio
who gets cam type impingement
young athletic males
what is pincer type inpingement
- acetabular deformity
- acetabular overhang
who gets pincer type impingement
females
what do both types of impingement cause
- damage to the labrum and tears
- damage to cartilage
- OA in later life
presentation of FAI
- activity related pain in groin
- flexion and rotation pain
- difficulty sitting
- C sign positive
- FADIR provocation test positive
diagnosis of FAI
- radiographs
- CT
- MRI
management of FAI
- observation in asymptomatic
- arthroscopic or open surgery to remove CAM/debride laberal tears
- peri-articular osteotomy/debride labral tears in pincer impingement
- arthroplasty older patients with secondary OA
what is avascular necrosis
failure of blood supply to the femoral head
pathophysiology of avascular necrosis
- coagulation of the intraosseous microcirculation
- venous thrombosis
- intraosseous hypertension
- decreased blood flow to femoral head
- necrosis of head
- chondral fracture and collapse
who gets avascular necrosis
males
35-50
risk factors of avascular necrosis
- irradiation
- trauma
- hematologic disease
- sickle cell
- dysbaric disorders
- alcoholism
- steroids
