76 research outputs found
Labeling Human Mesenchymal Stem Cells with Fluorescent Contrast Agents: the Biological Impact
Postoperative Inpatient Rehabilitation Does Not Increase Knee Function after Primary Total Knee Arthroplasty
Inpatient rehabilitation (IR) is a common postoperative protocol after total knee replacement (TKA). Because IR is expensive and should therefore be justified, this study determined the difference in knee function one year after TKA in patients treated with IR or outpatient rehabilitation, fast-track rehabilitation (FTR) in particular, which also entails a reduced hospital length of stay. A total of 205 patients were included in this multi-center prospective cohort study. Of the patients, 104 had primary TKA at a German university hospital and received IR, while 101 had primary TKA at a Canadian university hospital and received FTR. Patients receiving IR or FTR were matched by pre-operative demographics and knee function. Oxford Knee Score (OKS), Western Ontario and McMaster Universities Arthritis Index (WOMAC), and EuroQol visual analogue scale (EQ-VAS) determined knee function one year after surgery. Patients receiving IR had a 2.8-point lower improvement in OKS (p = 0.001), a 6.7-point lower improvement in WOMAC (p = 0.063), and a 12.3-point higher improvement in EQ-VAS (p = 0.281) than patients receiving FTR. IR does not provide long-term benefits to patient recovery after primary uncomplicated TKA under the current rehabilitation regime.Medicine, Faculty ofNon UBCOrthopaedics, Department ofReviewedFacultyResearche
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Intravenous Tranexamic Acid Versus Topical Aminocaproic Acid: Which Method Has the Least Blood Loss and Transfusion Rates?
IntroductionSince the advent of antifibrinolytics, blood transfusions and their associated complications in total joint arthroplasty have decreased. Few studies have compared different antifibrinolytic types with respect to blood loss and transfusion rates. We sought to compare the blood loss and transfusion rates between epsilon-aminocaproic acid (EACA), tranexamic acid (TXA), and control.MethodsA total of 564 patients underwent primary total hip or total knee arthroplasty at our institution. Patients were divided into 3 groups: 183 EACA, 204 TXA, and 177 control. Patient demographics, hemoglobin, transfusion rates, and blood loss were collected.ResultsPatient preoperative variables were similar. The control group had a mean estimated blood loss (EBL) of 1.48 L, with 51 units of packed red blood cells (pRBCs) given and 14.7% of patients receiving a blood transfusion. The EACA group had an EBL of 1.33 L, with 20 pRBCs given and 10.9% of patients receiving a transfusion. The TXA group had an EBL of 1.05 L, with 3 pRBCs transfused in 0.98% of patients. Compared with the control group, blood loss (P = 0.0014; P < 0.0001), number of pRBCs given (P = 0.007; P < 0.0001), and number of patients transfused (P = 0.012; P < 0.0001) were significantly lower in the EACA and TXA groups, respectively. TXA had significantly lower blood loss (P < 0.0001), lower number of tranfusions (P = 0.005), and less patients transfused (P = 0.003) compared with EACA.ConclusionOur study reports lower blood loss, transfusion rates, and number of patients needing transfusion with both EACA and TXA in the setting of total joint arthroplasty. When comparing between EACA and TXA, TXA had lower blood loss, transfusion rates, and number of patients requiring transfusion
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