[Effectiveness of low molecular weight heparin for prevention of deep vein thrombosis after total hip arthroplasty].

Objective: To investigate the pathogenesis of deep vein thrombosis (DVT) after total hip arthroplasty (THA) and the preventive effectiveness of low molecular weight heparin (LMWH).

Methods: The occurrence condition of DVT in 90 cases undergoing THA treated with LMWH between February 2003 and March 2004 was retrospectively analyzed. Among 90 cases, 39 were treated with LMWH at a dose of 5000 U/day (high dose group) and 51 at a dose of 2500 U/day (low dose group).