ABSTRACT
Objective To investigate the clinical effect of low molecular weight heparin (LMWH) and pressure pump on perioperative deep vein thrombosis (DVT) in patients with hip fracture and analyze the effect of LMWH on coagulation function. Methods Retrospective analysis of 95 cases hip fractures patients with clinical data, according to the preventive medication of DVT were divided into LMWH group of 42 cases and LMWH joint pressure pump group of 53 cases. The incidence rate of DVT and the degree of limb swelling after operation in two groups were observed. The differences of blood coagulation function indexes, blood rheology and hip function recovery were compared between the two groups. Results The the incidence rate of DVT in combination group was 1.89% (1 cases ), lower than LMWH group of 14.29% (6 cases )(χ2=5.278,P=0.022). After two weeks' treatment, the difference of anterior thigh circumference and calf circumference in combination group was less than LMWH group (P<0.05). The prothrombin time (PT) and activated partial thromboplastin time (APTT) in two groups post-treatment were lower than those pre-treatment, the D-dimer (D-D) was higher than that pre-treatment(P<0.05), but there was no significant difference between two groups. After 3 months' treatment, the Harris functional independence measure (FIM) in combination group was higher than that in LMWH group (P<0.05). Conclusion LMWH combined with pressure pump could significantly reduce the incidence of perioperative DVT in patients with hip fracture, improve the blood coagulation function and hip function.