The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty

The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty

OBJECTIVE: To evaluate the association between tourniquet and total operative time during total knee arthroplasty and the occurrence of deep vein thrombosis. METHODS: Seventy-eight consecutive patients from our institution underwent cemented total knee arthroplasty for degenerative knee disorders. The pneumatic tourniquet time and total operative time were recorded in minutes. Four categories were established for total tourniquet time: <60, 61 to 90, 91 to 120, and &gt;120 minutes. Three categories were defined for operative time: <120, 121 to 150, and &gt;150 minutes. Between 7 and 12 days after surgery, the patients underwent ascending venography to evaluate the presence of distal or proximal deep vein thrombosis. We evaluated the association between the tourniquet time and total operative time and the occurrence of deep vein thrombosis after total knee arthroplasty. RESULTS: In total, 33 cases (42.3%) were positive for deep vein thrombosis; 13 (16.7%) cases involved the proximal type. We found no statistically significant difference in tourniquet time or operative time between patients with or without deep vein thrombosis. We did observe a higher frequency of proximal deep vein thrombosis in patients who underwent surgery lasting longer than 120 minutes. The mean total operative time was also higher in patients with proximal deep vein thrombosis. The tourniquet time did not significantly differ in these patients. CONCLUSION: We concluded that surgery lasting longer than 120 minutes increases the risk of proximal deep vein thrombosis.

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Main Authors: Hernandez,Arnaldo José, Almeida,Adriano Marques de, Fávaro,Edmar, Sguizzato,Guilherme Turola
Format: Digital revista
Language:English
Published: Faculdade de Medicina / USP 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322012000900012
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spelling oai:scielo:S1807-593220120009000122012-09-24The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplastyHernandez,Arnaldo JoséAlmeida,Adriano Marques deFávaro,EdmarSguizzato,Guilherme Turola Deep Vein Thrombosis Prophylaxis Thromboembolism Tourniquet Knee Prosthesis OBJECTIVE: To evaluate the association between tourniquet and total operative time during total knee arthroplasty and the occurrence of deep vein thrombosis. METHODS: Seventy-eight consecutive patients from our institution underwent cemented total knee arthroplasty for degenerative knee disorders. The pneumatic tourniquet time and total operative time were recorded in minutes. Four categories were established for total tourniquet time: <60, 61 to 90, 91 to 120, and &gt;120 minutes. Three categories were defined for operative time: <120, 121 to 150, and &gt;150 minutes. Between 7 and 12 days after surgery, the patients underwent ascending venography to evaluate the presence of distal or proximal deep vein thrombosis. We evaluated the association between the tourniquet time and total operative time and the occurrence of deep vein thrombosis after total knee arthroplasty. RESULTS: In total, 33 cases (42.3%) were positive for deep vein thrombosis; 13 (16.7%) cases involved the proximal type. We found no statistically significant difference in tourniquet time or operative time between patients with or without deep vein thrombosis. We did observe a higher frequency of proximal deep vein thrombosis in patients who underwent surgery lasting longer than 120 minutes. The mean total operative time was also higher in patients with proximal deep vein thrombosis. The tourniquet time did not significantly differ in these patients. CONCLUSION: We concluded that surgery lasting longer than 120 minutes increases the risk of proximal deep vein thrombosis.info:eu-repo/semantics/openAccessFaculdade de Medicina / USPClinics v.67 n.9 20122012-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322012000900012en10.6061/clinics/2012(09)12
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countrycode BR
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libraryname SciELO
language English
format Digital
author Hernandez,Arnaldo José
Almeida,Adriano Marques de
Fávaro,Edmar
Sguizzato,Guilherme Turola
spellingShingle Hernandez,Arnaldo José
Almeida,Adriano Marques de
Fávaro,Edmar
Sguizzato,Guilherme Turola
The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
author_facet Hernandez,Arnaldo José
Almeida,Adriano Marques de
Fávaro,Edmar
Sguizzato,Guilherme Turola
author_sort Hernandez,Arnaldo José
title The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
title_short The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
title_full The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
title_fullStr The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
title_full_unstemmed The influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
title_sort influence of tourniquet use and operative time on the incidence of deep vein thrombosis in total knee arthroplasty
description OBJECTIVE: To evaluate the association between tourniquet and total operative time during total knee arthroplasty and the occurrence of deep vein thrombosis. METHODS: Seventy-eight consecutive patients from our institution underwent cemented total knee arthroplasty for degenerative knee disorders. The pneumatic tourniquet time and total operative time were recorded in minutes. Four categories were established for total tourniquet time: <60, 61 to 90, 91 to 120, and &gt;120 minutes. Three categories were defined for operative time: <120, 121 to 150, and &gt;150 minutes. Between 7 and 12 days after surgery, the patients underwent ascending venography to evaluate the presence of distal or proximal deep vein thrombosis. We evaluated the association between the tourniquet time and total operative time and the occurrence of deep vein thrombosis after total knee arthroplasty. RESULTS: In total, 33 cases (42.3%) were positive for deep vein thrombosis; 13 (16.7%) cases involved the proximal type. We found no statistically significant difference in tourniquet time or operative time between patients with or without deep vein thrombosis. We did observe a higher frequency of proximal deep vein thrombosis in patients who underwent surgery lasting longer than 120 minutes. The mean total operative time was also higher in patients with proximal deep vein thrombosis. The tourniquet time did not significantly differ in these patients. CONCLUSION: We concluded that surgery lasting longer than 120 minutes increases the risk of proximal deep vein thrombosis.
publisher Faculdade de Medicina / USP
publishDate 2012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322012000900012
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