住院天数影响全膝关节置换术后下肢深静脉血栓形成

Length of hospital stay and deep venous thrombosis in lower limbs after total knee arthroplasty

目的评估住院天数对全膝关节置换术(TKA)后下肢深静脉血栓(DVT)形成的影响。方法回顾性分析2011年至2021年于青岛大学附属医院行初次单侧TKA术的7179名患者的临床资料。根据患者出院后是否发生血栓将患者分为DVT组和无DVT组,绘制不同住院天数的患者出院后发生DVT比例的折线图。两组患者的一般临床资料比较采用t检验和卡方检验。结果患者平均年龄(65.9±7.6)岁,其中男性2568例,女性4611例。出院后DVT的发生率为0.9%(64/7179);以小腿肌间静脉受累为主,发生率87.5%(56/64)。随着住院天数的增加,TKA术后的患者出院后DVT的发生率也呈递增趋势。结论住院天数越长,TKA术后的患者出院后发生DVT的风险越高。

Objective To evaluate the effect of length of stay on deep venous thrombosis(DVT)after total knee arthroplasty(TKA).Methods The clinical data of 7179 patients undergoing primary unilateral TKA in Affiliated Hospital of Qingdao University from 2011 to 2021 were retrospectively analyzed.The patients were divided into DVT group and non-DVT group according to whether thrombosis occurred after discharge.The general clinical data of the two groups were analyzed by t test or chi square test.The broken-line diagram of DVT proportion of patients with different length of stay after discharge was drawn.Results The average age of the patients was(65.9±7.6)years,including 2568 males and 4611 females.The incidence of DVT after discharge was 0.9%(64/7179),mainly involving the intermuscular vein which was 87.5%(56/64).The results of the broken line diagram showed that with the increase of length of hospital stay,the incidence of DVT in patients after TKA was also increasing.Conclusion The longer the length of hospital stay,the higher the risk of DVT after TKA.