THA Complications
A 52-year-old man undergoes primary uncemented THA via posterior approach for osteoarthritis secondary to acetabular fracture malunion. He has a history of ankylosing spondylitis. Six months post-operatively he presents with progressive hip stiffness. X-rays show mature bone formation bridging from the greater trochanter to the ilium with complete ankylosis of the hip joint. Regarding heterotopic ossification (HO) after THA:
Mark each as TRUE or FALSE
Brooker classification grades HO severity: Grade I has islands of bone within soft tissues; Grade II...
Risk factors for HO include male sex, prior hip HO, hypertrophic osteoarthritis, ankylosing spondyli...
Prophylaxis is only indicated after surgical excision of HO and not after primary THA; indomethacin ...
Indomethacin 25mg TDS for 6 weeks is effective prophylaxis by inhibiting prostaglandin-mediated oste...
Surgical excision of HO is indicated for symptomatic Brooker Grade III-IV causing functional limitat...
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Click T (True) or F (False) for each option