The Journal of Bone and Joint Surgery, Vol 63, Issue 2 288-294, Copyright © 1981 by Journal of Bone and Joint Surgery, Inc
Platelet activity (malondialdehyde production) after orthopaedic surgery: the effect of aspirin
BN Stulberg, LD Dorr, CS Ranawat, BB Weksler and R Schneider
Using a biochemical assay of the prostaglandin endoperoxide metabolite
malondialdehyde, platelet activity was evaluated in 147 patients who were
undergoing orthopaedic surgical procedures. Assays were performed before
and after operation and the results were correlated with the type of
operation, the sex of the patient, and the use of aspirin as an
antiplatelet-aggregation agent. Postoperatively, statistically significant
elevations of platelet activity were found in patients who were not taking
aspirin, while highly statistically significant suppressions of this
activity were found after total hip arthroplasties and other surgical
procedures in patients who had received aspirin. Men and women had similar
levels of suppression of platelet aggregability with aspirin.