title: Incidence of deep vein thrombosis following total hip arthroplasty: a Doppler ultrasonographic study.
abstract: OBJECTIVE
  To investigate the incidence of deep vein thrombosis (DVT) following total hip arthroplasty (THA) in Singaporean patients.
  
  
  METHODS
  197 patients (mean age, 60 years) underwent primary THA (n=155) or revision procedure (n=42) without receiving routine chemoprophylaxis. There were 149 Chinese, 25 Malays, 19 Indians, and 4 Eurasians. Duplex ultrasonography to detect DVT was performed on both lower limbs on postoperative day 5.
  
  
  RESULTS
  15 (8%) patients developed DVT, which was proximal in 6 and distal in 9. Only one patient had pulmonary embolism. The presence of DVT did not correlate to age, gender, race, presence of diabetes mellitus, history of malignancy, smoking habit, fixation type, primary versus revision type of surgery, or operating time.
  
  
  CONCLUSIONS
  The incidence of DVT following THA in Singaporean patients is low, and routine chemoprophylaxis may not be indicated.
authors.affiliation: Department of Orthopaedic Surgery, National University Hospital, Singapore. lingaraj_krishna@nuhs.edu.sg
authors.forename: Keng Lin
authors.initials: KL
authors.lastname: Wong
authors.forename: Richillo
authors.initials: R
authors.lastname: Daguman
authors.forename: Kay  Hui
authors.initials: K
authors.lastname: Lim
authors.forename: Liang
authors.initials: L
authors.lastname: Shen
authors.forename: Krishna
authors.initials: K
authors.lastname: Lingaraj
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000601:surgery; D006801:Humans; D015994:Incidence; D007592:Joint Diseases / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011379:Prognosis; D012189:Retrospective Studies; D012846:Singapore / Q000453:epidemiology; D018616:Ultrasonography, Doppler, Duplex / Q000379:methods*; D020246:Venous Thrombosis / Q000000981:diagnostic imaging / Q000453:epidemiology* / Q000209:etiology