2Freedman KB , Brookenthal KR , Fitzgerald RH , et al. A meta-analysis of thromboembolic prophylaxis following elective total hip arthroplasty. J Bone Joint Surg Am,2000 ,82:929-938.
3Salvati EA Pellegrini VD. Recent advances in thromboembolic prophylaxis during and after total hip replacement. J Bone Joint Surg Am,2000 ,82:252-270.
4Planes A , VocheUe N , Fagola M. Total hip replacement and deep vein thrombosis : a venographic and vecropsy study. J Bone Jion Surg Br, 1990,72:9-13.
5Lieberman JR, Geerts WH. Prevention of venous thromboembolism after hip and knee arthroplasty. J Bone Joint Surg Am, 1994,76:1239-1250.