Hip Disorders
A 38-year-old female aerobics instructor presents with 18 months of progressive anterior groin pain, worse with prolonged sitting and deep hip flexion activities. Examination reveals limited internal rotation in flexion (10 degrees compared to 25 degrees contralaterally) and a positive anterior impingement test. AP pelvis radiograph shows a lateral center-edge angle of 42 degrees, acetabular index of -2 degrees, and positive crossover sign. MR arthrogram demonstrates labral degeneration with intrasubstance signal change and a small area of cartilage delamination in the anterosuperior acetabulum. Regarding the diagnosis and pathophysiology of this condition:
Mark each as TRUE or FALSE
PINCER-type FAI results from ACETABULAR OVERCOVERAGE causing the acetabular rim to contact the femor...
The CROSSOVER SIGN on AP pelvis indicates acetabular retroversion where the anterior wall crosses la...
Pincer FAI causes primary damage to the FEMORAL HEAD cartilage in the posteroinferior weight-bearing...
In pincer FAI, the LABRUM is compressed between the overcovered rim and femoral neck, leading to lab...
MIXED CAM-PINCER morphology is present in 70-80% of symptomatic FAI cases; pure pincer morphology is...
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Click T (True) or F (False) for each option