Resumen

ARCIA-GUZMAN, A; BERNABE-CASTANEDA, E; ARCIA-GUZMAN, JJ  y  OLGUIN-MONTOYA, JM. Assessment of bleeding and operative time in total knee arthroplasty with and without tourniquet: Comparative study. Acta ortop. mex [online]. 2014, vol.28, n.2, pp.106-112. ISSN 2306-4102.

Background: The use of the pneumatic tourniquet (PT) in total knee arthroplasty (TKA) has been controversial; its advantages, disadvantages and associated complications have been described. In order to assess its benefits we analyzed operative time; intraoperative, postoperative and total bleeding volume, as well as pre- and postoperative hemoglobin and hematocrit values in patients who had undergone primary TKA using the PT, and they were compared with a control group. Material and methods: A retrospective analysis of the clinical records of cases who underwent TKA was conducted. Based on the inclusion criteria and the use or non-use of PT, two groups were formed: a study group (n = 19) and a control group (n = 19). The following variables were compared: operative time, intra and postoperative bleeding and total bleeding; initial and final hemoglobin and hematocrit values. Results: Significant differences in favor of the group with PT use were obtained in 7 out of the 8 variables studied. The most relevant ones were operative time (t = 2.08 p < 0.050); intraoperative bleeding (t = -6.44, p < 0.010); postoperative bleeding (t = -2.170 p < 0.050) and total bleeding (t = /7.52, p < 0.010). Conclusions: The results showed that patients in whom PT was used during TKA had a shorter operative time, and their total, intra- and postoperative bleeding and the estimated blood loss were lower than in controls. Additional suppositions on the benefits of PT warrant the conduction of more prospective research studies.

Palabras llave : arthroplasty; knee; pneumatic tourniquet; arthrosis.

        · resumen en Español     · texto en Español     · Español ( pdf )