Plasma rico em Plaquetas (PRP) aplicado na artroplastia total do joelho

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Abstract

Objective: To evaluate the efficacy of platelet-rich plasma regarding healing, pain and hemos-tasis after total knee arthroplasty, by means of a blinded randomized controlled and blinded clinical study. Methods: Forty patients who were going to undergo implantation of a total knee prosthesis were selected and randomized. In 20 of these patients, platelet-rich plasma was applied before the joint capsule was closed. The hemoglobin (mg/dL) and hematocrit (%) levels were assayed before the operation and 24 and 48 hours afterwards. The Womac questi-onnaire and a verbal pain scale were applied and knee range of motion measurements were made up to the second postoperative month. The statistical analysis compared the results with the aim of determining whether there were any differences between the groups at each of the evaluation times. Results: The hemoglobin (mg/dL) and hematocrit (%) measurements made before the ope-ration and 24 and 48 hours afterwards did not show any significant differences between the groups (p > 0.05). The Womac questionnaire and the range of motion measured before the operation and up to the first two months also did not show any statistical differen- ces between the groups (p > 0.05). The pain evaluation using the verbal scale showed that there was an advantage for the group that received platelet-rich plasma, 24 hours, 48 hours, one week, three weeks and two months after the operation (p < 0.05). Conclusions: In the manner in which the platelet-rich plasma was used, it was not shown to be effective for reducing bleeding or improving knee function after arthroplasty, in compa-rison with the controls. There was an advantage on the postoperative verbal pain scale.

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Guerreiro, J. P. F., Danieli, M. V., Queiroz, A. O., Deffune, E., & Ferreira, R. R. (2015). Plasma rico em Plaquetas (PRP) aplicado na artroplastia total do joelho. Revista Brasileira de Ortopedia, 50(2), 186–194. https://doi.org/10.1016/j.rbo.2014.05.005

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