Daniel J. Howgate MBChB, PhD, FRCS (Tr&Orth) , Roman P. Austin BS , Joshua S. Bingham MD , Mark J. Spangehl MD , Henry D. Clarke MD
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引用次数: 0
Abstract
Background
Acute blood loss and transfusion are recognized risks factors of total hip (THA) and total knee arthroplasty (TKA). This study aimed to investigate the clinical value of immediate postoperative hemoglobin and hematocrit (H&H) tests following primary elective THA and TKA.
Methods
This retrospective observational study was undertaken at a single academic hospital. Medical records were reviewed for a consecutive series of patients undergoing primary elective THA and TKA over a 12-month period. Patient demographic data; the use of preoperative anticoagulants; preoperative and postoperative blood test results; and the incidence of postoperative allogenic blood transfusion (ABT) were collected. The primary outcome measure was the incidence of postoperative ABT prescribed in response to the immediate postoperative H&H result.
Results
Overall, 367 eligible patients were included, with 167 THA (46%) and 200 TKA (54%) cases. Only 3 patients (0.8%) received a postoperative ABT; none on the day of surgery or on postoperative day 1. Immediate postoperative H&H tests were drawn in 246 patients (67%), but it did not influence clinical decision-making with regards to transfusion. No significant differences in ABT were observed in relation to patient age, sex, body mass index, operation (THA or TKA), or the use of preoperative anticoagulation medication. The incidence of ABT was significantly higher in patients with a combined preoperative hemoglobin <12.5 g/dL and hematocrit <40.0% (P = .003).
Conclusions
The incidence of postoperative blood transfusion following primary elective THA and TKA was low at 0.8%. Postoperative H&H tests were drawn in most patients but did not influence clinical management. Immediate postoperative hematological monitoring is unnecessary for most low-risk patients following uncomplicated primary elective THA and TKA.
期刊介绍:
Arthroplasty Today is a companion journal to the Journal of Arthroplasty. The journal Arthroplasty Today brings together the clinical and scientific foundations for joint replacement of the hip and knee in an open-access, online format. Arthroplasty Today solicits manuscripts of the highest quality from all areas of scientific endeavor that relate to joint replacement or the treatment of its complications, including those dealing with patient outcomes, economic and policy issues, prosthetic design, biomechanics, biomaterials, and biologic response to arthroplasty. The journal focuses on case reports. It is the purpose of Arthroplasty Today to present material to practicing orthopaedic surgeons that will keep them abreast of developments in the field, prove useful in the care of patients, and aid in understanding the scientific foundation of this subspecialty area of joint replacement. The international members of the Editorial Board provide a worldwide perspective for the journal''s area of interest. Their participation ensures that each issue of Arthroplasty Today provides the reader with timely, peer-reviewed articles of the highest quality.