Fig. 4From: Selective versus non-selective NSAIDs as prophylaxis for heterotopic ossification following hip arthroplasty: a meta-analysisThe graph shows that both types of NSAIDs were effective at preventing HO: 72% (1078 of 1502) of patients were classified as Brooker 0, 21% (322 of 1502) Brooker I, 5% (80 of 1502) Brooker II, 1% (16 of 1502) Brooker III, and 0.1% (2 of 1502) Brooker IVBack to article page