Conclusions
This systematic review, factors which was found to be associated with VTE risk of both THA and TKA included older age, female sex, higher BMI, bilateral surgery, VTE history and surgery time > 2 hours. Cemented fixation was found to be a VTE risk factor only for TKA patients, and "TKA" itself was found to be associated with higher VTE risk, compared with THA.
Chemoprophylaxis for VTE(vs.no-prophylaxis), enoxaparin (vs.other LMWH) and direct F-Xa inhibitor (vs.LMWH) were found to be VTE protective factors for both THA and TKA. Earlier mobilization was also a protective factor for TKA. However, we can not take earlier mobilization as a VTE protective factor for THA until sufficient number of papers of high evidence level are available.