Regional anesthesia, compression, and aspirin is the safest form of prophylaxis for hip and knee arthroplasty.
Lundberg
George D
GD
D000765:Anesthesia, Conduction; D019644:Arthroplasty, Replacement, Hip; D019645:Arthroplasty, Replacement, Knee; D001241:Aspirin / Q000627:therapeutic use*; D006801:Humans; D048228:Intermittent Pneumatic Compression Devices; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use*; D011183:Postoperative Complications / Q000517:prevention & control*; D011655:Pulmonary Embolism / Q000517:prevention & control*
D010975:Platelet Aggregation Inhibitors; D001241:Aspirin