title: Blood loss in sequential bilateral total knee arthroplasty.
abstract: This study was devised to determine whether blood loss for sequential bilateral knee arthroplasties was the same for the first and second knees. Twenty-eight patients who underwent this procedure were studied along with a control group of patients who underwent unilateral knee arthroplasties. Blood loss was greater in the second knee by a mean of 323 mL (P < .05). The control group and the first knee showed no significant difference in blood loss. Analysis of clotting studies showed a prolongation of prothrombin time, activated partial thromboplastin time, and thrombin time after release of the first tourniquet. Possible reasons for this greater blood loss are discussed.
authors.affiliation: Avon Orthopaedic Centre, Southmead Hospital, Bristol, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Bould
authors.forename: B J
authors.initials: BJ
authors.lastname: Freeman
authors.forename: A
authors.initials: A
authors.lastname: Pullyblank
authors.forename: J H
authors.initials: JH
authors.lastname: Newman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D001777:Blood Coagulation; D016063:Blood Loss, Surgical / Q000517:prevention & control; D001803:Blood Transfusion; D001810:Blood Volume; D005260:Female; D006454:Hemoglobins / Q000378:metabolism; D006801:Humans; D007430:Intraoperative Care; D008297:Male; D008875:Middle Aged
chemical_list: D006454:Hemoglobins