Title

Blood loss in primary total knee arthroplasty—body temperature is not a significant risk factor—a prospective, consecutive, observational cohort study

Date of this Version

6-26-2015

Document Type

Journal Article

Publication Details

Published version

Dan, M., Martinez Martos, S., Beller, E., Jones, P., Randle, R., & Liu, D. (2015). Blood loss in primary total knee arthroplasty-body temperature is not a significant risk factor- a prospective, consecutive, observational cohort study. Journal of Orthopaedic Surgery and Research, 10(97), 1-7.

Access the journal

2015 HERDC submission

© Copyright, Dan et al., 2015

Distribution License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

ISSN

1749-799X

Abstract

Background

Hypothermia related to anaesthesia and operating theatre environment is associated with increased blood loss in a number of surgical disciplines, including total hip arthroplasty. The influence of patient temperature on blood loss in total knee arthroplasty (TKA) has not been previously studied.

Methods

We recorded patient axillary temperature in the peri-operative period, up to 24 h post-operatively, and analysed the effect on transfusion rate and blood loss from a consecutive cohort of 101 patients undergoing primary TKA.

Results

No relationship between peri-operative patient temperature and blood loss was found within the recorded patient temperature range of 34.7–37.8 °C. Multivariable analysis found increasing age, surgical technique, type of anaesthesia and the use of anti-platelet and anticoagulant medications as significant factors affecting blood loss following TKA.

Conclusion

Patient temperature within a clinically observed range does not have a significant impact on blood loss in primary TKA patients. As long as patient temperature is maintained within a reasonable range during the intra-operative and post-operative periods, strategies other than rigid temperature control above 36.5 °C may be more effective in reducing blood loss following TKA.

 

This document has been peer reviewed.