Quite a few studies have focused on the postoperative blood loss of total knee arthroplasty, However, these studies have generally not reported the difference of the blood loss with or without haemostasis after the tourniquet released in minimally invasive total knee arthroplasty (MIS-TKA).
Eighty-four patients were recruited for a cohort study of the minimally invasive total knee arthroplasty (MIS-TKA) for the treatment of osteoarthritis. They were divided into two groups, 42 patients with thorough haemostasis in the minimally invasive total knee arthroplasty (group A) and the other 42 patients without a thorough haemostasis procedure in the minimally invasive total knee arthroplasty (group B). The surgery in both groups was carried out by a single surgeon at one institution using a uniform approach. The blood loss in each group was evaluated and analyzed for the statistical difference.
The result showed that the mean blood loss from the drainage of the group A (329.69 ± 195.31 milliliters) was slightly lower than the group B (406.31 ± 239.33 milliliters), which had no significant difference (p-value 0.552). Moreover, the whole blood loss in the group A (826.45 ± 391.63 milliliters) was slightly lower than the group B (975.22 ± 389.76 milliliters). The difference was also not statistically significant.
With a thorough haemostasis procedure did not reduce blood loss in the minimally invasive surgery total knee arthroplasty (MIS-TKA).