title: Blood loss in patients for total knee arthroplasty.
abstract: Ninety-four patients with osteoarthritis (OA) and 180 with rheumatoid arthritis (RA) undergoing unilateral total knee arthroplasty (TKA) were analyzed to clarify the necessity for preoperative autogenous blood deposition or homologous blood transfusion. Two hundred and twenty-four and 50 patients underwent TKA with cement and without cement, respectively. The difference in average blood loss in patients between with (372 ml) and without cementation (449 ml) was significant. In the OA group the average blood loss significantly decreased after cementation but not in the RA group. Although the rate of avoiding transfusion in the OA group did not significantly decrease with the use of cement (92.4% vs. 93.3%), that in the RA group did (80% to 57.1%). Eight of 159 patients with hemoglobin level (Hb) of 11.0 g/dl or higher received homologous blood transfusion. Of these eight patients five had associated disorders. Only one patient with Hb of 12.0 g/dl or higher underwent homologous blood transfusion. Patients with Hb of 12.0 g/dl or higher are not indicated for preoperative autologous blood deposition. In patients with Hb between 11.0 and 12.0 g/dl preoperative blood deposition may be planned after consideration of general condition and complication. Patients with Hb lower than 11.0 g/dl should undergo preoperative blood deposition.
authors.affiliation: Study of Biofunctional Recovery and Reconstruction, Okayama University Graduate School of Medicine and Dentistry, Okayama 700-8558, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Fujimoto
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Ozaki
authors.forename: Kohji
authors.initials: K
authors.lastname: Asaumi
authors.forename: Hisayoshi
authors.initials: H
authors.lastname: Kato
authors.forename: Keichiro
authors.initials: K
authors.lastname: Nishida
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Takahara
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Abe
authors.forename: Hajime
authors.initials: H
authors.lastname: Inoue
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001172:Arthritis, Rheumatoid / Q000601:surgery*; D019643:Arthroplasty, Replacement / Q000379:methods*; D016063:Blood Loss, Surgical; D001803:Blood Transfusion / Q000706:statistics & numerical data*; D001804:Blood Transfusion, Autologous; D001843:Bone Cements; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D011300:Preoperative Care; D012086:Reoperation
chemical_list: D001843:Bone Cements; D006454:Hemoglobins