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Objectives. Tranexamic acid (TXA), an inhibitor of fibrinolysis blocking the lysine-binding site of plasminogen to fibrin, has been reported to reduce intraoperative and postoperative blood loss in patients undergoing primary total hip arthroplasty (PTHA) both with and without cement. Both intravenous (IV) and topical (TOP) administration of TXA can effectively reduce blood loss in THA without increasing risk of deep venous thrombosis (DVT). However, there have been few reports investigating the combination of intravenous and topical administration of TXA in bilateral cementless PTHA. We investigated the effects of combined intravenous and topical administration of TXA on postoperative blood loss, drainage volume, and perioperative complications in patients with bilateral simultaneous cementless PTHA for hip osteoarthritis. Patients and methods. We retrospectively reviewed the demographic and clinical data of 41 patients who underwent bilateral simultaneous cementless PTHA for hip osteoarthritis from May 2015 to January 2017, of which there were 29 male (70.7%) and 12 female (29.3%) patients. Patients in IV group (n= 11) received only TXA (15 mg/kg) 10 min prior to the incision of each side; and patients in IV + TOP group (n=13) received i.v. TXA (15 mg/kg) combined with topical adiministration (1.0 g) of TXA during the each THA procedure; patients in control group (n=17) received the same dosage of normal saline both i.v. and topically. Outcome measures were total blood loss, hemoglobin, hematocrit value (HCT) changes preoperatively, and on the 1st, 3rd postoperative day, the amount of drainage, and perioperative complications. Results. On the 1st, 3rd postoperative day, patients in group IV and group IV + TOP had significantly higher haematological parameters (haemoglobin, hematocrit value (HCT)) than patients in control group (P < 0.05 (group IV vs control group), P < 0.01 (group IV + TOP vs control group), respectively), while no significant differences found between patients in group IV and group IV + TOP (P > 0.05). The postoperative drainage volume of patients in group IV and group IV + TOP were significantly less than those in control group (P < 0.01, P < 0.01, respectively), while no significant differences found between those in group IV and group IV + TOP (P > 0.05). No significant differences were found in the perioperative complications (DVT or PE) among all three groups. Conclusion. The combined administration of intravenous and topical TXA resulted in a significantly reduction in postoperative blood loss, compared with placebo group. No adverse perioperative complications were observed. This study supports the combined intravenous and topical administration of TXA in bilateral cementless PTHA


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_6 | Pages 32 - 32
1 Apr 2018
Zeng W Liu J Yang L
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Background. The reductions of perioperative blood loss and inflammatory response are important in total knee arthroplasty. Tranexamic acid reduced blood loss and the inflammatory response in several studies. However, the effect of epinephrine administration plus tranexamic acid has not been intensively investigated, to our knowledge. In this study, we evaluated whether the combined administration of low-dose epinephrine plus tranexamic acid reduced perioperative blood loss or inflammatory response further compared with tranexamic acid alone. Methods. This randomized placebo-controlled trial consisted of 179 consecutive patients who underwent primary total knee arthroplasty. Patients were randomized into 3 interventions: Group IV received intravenous low-dose epinephrine plus tranexamic acid, Group TP received topical diluted epinephrine plus tranexamic acid, and Group CT received tranexamic acid alone. The primary outcome was perioperative blood loss on postoperative day 1. Secondary outcomes included perioperative blood loss on postoperative day 3, coagulation and fibrinolysis parameters (measured by thromboelastography), inflammatory cytokine levels, transfusion values (rate and volume), thromboembolic complications, length of hospital stay, wound score, range of motion, and Hospital for Special Surgery (HSS) score. Results. The mean calculated total blood loss (and standard deviation) in Group IV was 348.1 ± 158.2 mL on postoperative day 1 and 458.0 ± 183.4 mL on postoperative day 3, which were significantly reduced (p < 0.05) compared with Group TP at 420.5 ± 188.4 mL on postoperative day 1 and 531.1 ± 231.4 mL on postoperative day 3 and Group CT at 520.4 ± 228.4 mL on postoperative day 1 and 633.7 ± 237.3 mL on postoperative day 3. Intravenous low-dose epinephrine exhibited a net anti-inflammatory activity in total knee arthroplasty and did not induce an obvious hypercoagulable status. Transfusion values were significantly (p=0.023 and 0.032) reduced in Group IV, but no significant differences were observed in the incidence of thromboembolic complications, wound score, range of motion, and HSS score among the 3 groups (p > 0.05). Conclusions. The combined administration of low-dose epinephrine and tranexamic acid demonstrated an increased effect in reducing perioperative blood loss and the inflammatory response compared with tranexamic acid alone, with no apparent increased incidence of thromboembolic and other complications


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_29 | Pages 64 - 64
1 Aug 2013
Sabnis B Maheshwari R Walmsley P Brenkel I
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Blood loss following total hip replacement is a major contributor to increase morbidity and length of stay. Various techniques have been described to reduce its occurrence. We now follow a set protocol, combining rivaroxaban for thrombo-prophylaxis and tranexamic acid to reduce immediate postoperative bleeding.

Patients and methods:

Using data collected prospectively we looked at 2 groups of consecutive patients undergoing THR. The protocol was the only factor changed during the period studied. Initially we used subcutaneous dalteparin injections and continued use of aspirin in peri-operative period following total hip replacements (Group I–317 patients).

A new protocol was introduced involving rivaroxaban for thrombo-prophylaxis with its first dose at least 8 hours from skin closure and stopping aspirin at least 7 days before operation. In addition tranexamic acid was given in a dose of 500 mg (or 1 gm in obese patients) intravenously just prior to incision (Group II–348 patients).

We compared these two groups regards Hb drop at 24 hours and blood transfusion requirement.

Results:

The average Hb drop at 24 hours postop in group I was 3.08 gm/dl compared to 2.31 in group II. (p<0.001). 62 (19.6%) patients in group I required blood transfusion compared to 11 (3.2%) in group II. (p = 0.001) Perioperative blood loss and length of stay reduction was also significantly different.

There was no increase in number of DVT/PE, but the sample size was too small to assess this statistically.


Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 43 - 43
1 Mar 2010
ELSaka A Gehad M Tajchner L McGown D Tobbia I Bennett D
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Introduction: During the postoperative follow up of patients who underwent primary total hip replacement, it was observed that the haemoglobin concentration had dropped more than expected when compared to the intra and postoperative (drain) loss. This study was carried out to ascertain whether this drop in haemoglobin reflects a real blood loss or is due to hemodilution secondary to intravenous fluids, or both. Also to establish the average amount of blood loss responsible for the drop of one gm of haemoglobin concentration, in order to confirm or alter the old belief that every 500ml of blood loss is responsible for 1 gm drop in Hb concentration.

Method: A prospective study was carried out to include 20 patients undergoing primary total hip replacement due to osteoarthritis in the period, March to November 2006. 2 drains were used, one was deep and the other was superficial. 7 samples of haemoglobin were taken in every case. The first sample preoperatively, the second postoperatively in the recovery room, the third and forth samples taken 6 hours postoperatively from the patient and the deep drain. The fifth and sixth samples from the patient and the deep drain 24 hours postoperatively. And the last sample from the patient 5 days postoperatively. Also the IV Fluids given were recorded in the first 24 hours.

Results:

The Hb concentration in the deep drain was gradually decreasing over the first 24 hours after the operation when compared to the patient’s Hb which means that the total volume of the drain loss doesn’t mean an equal volume of blood loss.

The second drain which was inserted superficial to the iliotibial tract showed blood loss with an average of 11.2% of the total blood loss and this amount is usually missed in calculating the blood loss when using one deep drain only.

The average blood loss responsible for the drop of one gram Hb was variable. It was 258 ml when comparing intraoperative blood loss with the immediate postoperative patient’s Hb. This increased to 341 ml when comparing the drain blood with the patient’s Hb 24 hours after the operation due to the above mentioned changes in RBCs concentration in the drain over the first 24 hours postoperatively.

IVF has no effect in giving false readings of the Hb


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_2 | Pages 83 - 83
1 Jan 2016
Ko TS Jeong HJ Lee JH
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Purpose. The purposes of this study are as follows; 1) to compare postoperative blood loss between general anesthesia(GA) and spinal anesthesia(SA) and 2) to analyze the affecting factors of postoperative blood loss through the subgroup analysis. METHODS. A retrospective analysis was made on the clinical data of 122 patients with osteoarthritis undergoing primary TKA between January 2012 and December 2013. According to different anesthetic method, the patients were divided into the General Anesthesia group (73 cases) and the Spinal Anesthesia group (49 cases). Each group was divided subgroup as age, BMI, Preoperative blood pressure, Surgery time, Torniquet time, INR. The total blood loss, Post Operation 1 day blood loss, hidden blood loss, and the percentage of hidden blood loss were compared between 2 groups. For the analysis of postoperative blood loss, each group was compared postoperative blood loss using hemovac drainage per day and total blood loss. In preoperative blood pressure, Higher than 140 mmHg in systolic blood pressure and higher than 90 mmHg in diastolic blood pressure were employed as a cut-off value to group the well-controlled hypertension group(n=42) and uncontrolled hypertension group(n=29). RESULTS. One day after the surgery blood loss(p=0.322) and total blood loss(p=0.560) showed no significant differences between two group. But in the uncontrolled hypertension group showed a large amount of bleeding one day after the surgery(p=0.003) and total blood loss(p=0.004) in the spinal anesthesia. CONCLUSION. It seems that, general anesthesia is effective method to reduce postoperative blood loss. Preoperative blood pressure control is one of the important affecting factor of postoperative blood loss


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_9 | Pages 125 - 125
1 May 2016
Pauzenberger L Heuberer P Laky B Kriegleder B Anderl W
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Background. Tranexamic acid is an antifibrinolytic drug that has been shown to successfully reduce postoperative blood loss in total knee and hip arthroplasty. However, the efficacy of TXA following total shoulder arthroplasty has not been reported. Purpose. The purpose of the present study was to evaluate the impact of intravenous TXA on postoperative blood loss and transfusion rates in total shoulder reconstruction. Methods. Between July and December 2014, 50 patients scheduled for primary total shoulder arthroplasty of the shoulder were included in this blinded, randomized study. Patients received either 1000mg intravenous TXA within thirty minutes before skin incision and another 1000mg intravenously administered TXA during wound closure (group 1), or a placebo (group 2). The perioperative blood loss and the rate of blood transfusions were analyzed. Results. Early postoperative blood loss was 80.0±105.5ml in the TXA group (group 1), and 202.1±195.8ml in the placebo group (group 2). The administration of blood products was not necessary during the study period. Conclusion. The administration of intravenous tranexamic acid significantly reduced the postoperative blood loss following total shoulder arthroplasty


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_5 | Pages 148 - 148
1 Mar 2017
Shin Y Lee D
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Purpose. This meta-analysis was designed to compare the effectiveness and safety of intravenous (IV) versus topical administration of tranexamic acid (TXA) in patients undergoing primary total knee arthroplasty (TKA) by evaluating the need for allogenic blood transfusion, incidence of postoperative complications, volume of postoperative blood loss, and change in hemoglobin levels. Materials and Methods. Studies were included in this meta-analysis if they assessed the allogenic blood transfusion rate, postoperative complications including pulmonary thromboembolism (PTE) or deep vein thrombosis (DVT), volume of postoperative blood loss via drainage, estimated blood loss, total blood loss, and change in hemoglobin before and after surgery in primary TKA with TXA administered through both the intravenous (IV) and topical routes.[Fig. 1]. Results. Ten studies were included in this meta-analysis.[Fig. 2] The proportion of patients requiring allogenic blood transfusion (OR 1.34, 95% CI: 0.63 to 2.81; P=0.45) [Fig. 3] and the proportion of patients who developed postoperative complications including PTE or DVT (OR 0.85, 95% CI: 0.41 to 1.77; P=0.66) did not significantly differ between the two groups. There was 52.3 mL less blood loss via drainage (95% CI: −50.74 to 185.66 ml; P=0.44),[Fig. 4] 21.5 mL greater estimated blood loss (95% CI: −98.05 to 55.12 ml; P=0.32), and 51.4 mL greater total blood loss (95% CI: −208.16 to 105.31 ml; P=0.52) [Fig. 5]in the topical TXA group as compared to the IV TXA group. The two groups were also similar in terms of the change in hemoglobin levels (0.02 g/dl, 95% CI: −0.36 to 0.39 g/dl; P=0.94). Conclusion. In primary TKA, there are no significant differences in the transfusion requirement, postoperative complications, blood loss, and change in hemoglobin levels between the intravenous and topical administration of TXA. For figures/tables, please contact authors directly.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XLI | Pages 70 - 70
1 Sep 2012
Kumar V Garg B Malhotra R
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A prospective, randomized, double-blind study was done on 50 patients undergoing primary cementless total hip arthroplasty to determine the effect of tranexamic acid on intra- and postoperative blood losses and on the transfusions requirements. 50 patients were randomized to tranexamic acid (15 mg/kg) given as a bolus intravenous injection or placebo (normal saline) given intravenously, 15 minutes before the incision. The intraoperative and postoperative blood loss (at removal of the drain 24 hours after the operation) and the number of blood transfusions required were recorded. The patients were screened for deep venous thrombosis with bilateral compression Ultrasonography using Colour Doppler imaging on the tenth postoperative day. The Hemoglobin level was measured preoperatively and on the 3rd postoperative day. The D-dimer levels were measured preoperatively and 24 hrs postoperatively. Patients receiving tranexamic acid had a mean intraoperative blood loss of 410 ml (range, 300–510 ml) versus 615 ml (range, 515–750ml) (p value<0.05) in patients receiving placebo, a postoperative blood loss of 210 ml(range, 150–325ml) versus 490 ml(range, 370–540ml) (p value<0.05), and a total need for 8 blood transfusions versus 30. Only 6 out 25 patients in tranexamic acid group required blood transfusion whereas 18 out of 25 patients in the placebo group required transfusion. In the group receiving placebo the mean fall in hemoglobin was 2.9g/dl (range, 2.5–3.2) and in the group treated with tranexamic acid 1.6 g/dl (1.3–2) (p<0.05). At 24 hrs postoperatively, mean plasma D-dimer concentration in the Tranexamic group was half of that in the control group. No patient in either group had any evidence of deep vein thrombosis on bilateral compression Ultrasonography using Colour Doppler imaging done on the tenth postoperative day. Tranexamic acid 15 mg/kg given as a single preoperative bolus dose reduces peroperative and postoperative and total blood loss, and transfusion requirements in primary cementless total hip replacement surgery without any increased risk of thrombus formation


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XVI | Pages 2 - 2
1 Apr 2012
Kumar DV
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A prospective, randomized, double-blind study was done on 50 patients undergoing primary cementless total hip arthroplasty to determine the effect of tranexamic acid on intra- and postoperative blood losses and on the transfusions requirements. 50 patients were randomized to tranexamic acid (15 mg/kg) given as a bolus intravenous injection or placebo (normal saline) given intravenously, 15 minutes before the incision. The intraoperative and postoperative blood loss (at removal of the drain 24 hours after the operation) and the number of blood transfusions required were recorded. The patients were screened for deep venous thrombosis with bilateral compression Ultrasonography using Colour Doppler imaging on the tenth postoperative day. The Haemoglobin level was measured preoperatively and on the 3rd postoperative day. The D-dimer levels were measured preoperatively and 24 hrs postoperatively. Patients receiving tranexamic acid had a mean intraoperative blood loss of 410 ml (range, 300-510 ml) versus 615 ml (range, 515-750ml) (p value<0.05) in patients receiving placebo, a postoperative blood loss of 210 ml(range, 150-325ml) versus 490 ml(range,370-540ml) (p value<0.05), and a total need for 8 blood transfusions versus 30. Only 6 out 25 patients in tranexamic acid group required blood transfusion whereas 18 out of 25 patients in the placebo group required transfusion. In the group receiving placebo the mean fall in haemoglobin was 2.9g/dl (range, 2.5-3.2) and in the group treated with tranexamic acid 1.6 g/dl (1.3-2) (p<0.05). At 24 hrs postoperatively, mean plasma D-dimer concentration in the Tranexamic group was half of that in the control group. No patient in either group had any evidence of deep vein thrombosis on bilateral compression Ultrasonography using Colour Doppler imaging done on the tenth postoperative day. Tranexamic acid 15 mg/kg given as a single preoperative bolus dose reduces peroperative and postoperative and total blood loss, and transfusion requirements in primary cementless total hip replacement surgery without any increased risk of thrombus formation


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_4 | Pages 33 - 33
1 Feb 2017
Jang K Lee D Kim T In Y Oh K Lee D Han S
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Purpose. This meta-analysis was designed to evaluate the effects of computer navigation on blood conservation after total knee arthroplasty (TKA) by comparing postoperative blood loss and need for allogenic blood transfusion in patients undergoing computer navigation and conventional primary TKAs. Methods. Studies were included in this meta-analysis if they compared change in haemoglobin concentration before and after surgery, postoperative blood loss via drainage or calculated total blood loss, and/or allogenic blood transfusion rate following TKA using computer navigation and conventional methods. For all comparisons, odds ratios and 95 % confidence intervals (CI) were calculated for binary outcomes, while mean difference and 95 % CI were calculated for continuous outcomes. Results. Twelve studies were included in this meta-analysis. The change in haemoglobin concentration was 0.39 g/dl lower with computer navigation than with conventional TKA (P = 0.006). Blood loss via drainage was 83.1 ml (P = 0.03) lower and calculated blood loss was 185.4 ml (P = 0.002) lower with computer navigation than with conventional TKA. However, the need for blood transfusion was similar for the two approaches (n.s.). Conclusions. The primary TKA with computer navigation was effective in reducing haemoglobin loss and blood loss, but had no effect on transfusion requirement, compared with conventional primary TKA. These findings suggest the importance of analysing several blood loss parameters, because each may not always accurately reflect true postsurgical bleeding


Orthopaedic Proceedings
Vol. 92-B, Issue SUPP_I | Pages 146 - 146
1 Mar 2010
Han S Kim Y Kwon S Choi N
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We developed a modified posterior approach that preserved the short external rotator muscles to prevent dislocation after THA or BHA. The present study aimed to evaluate the effectiveness of short external rotator preserving posterior(ERP) approach for bipolar hemiarthroplasty in treatment of femoral neck fractures in patients with neurologic disorders. Between March 2004 and February 2006, we performed 187 cementless bipolar hemiarthroplasties for displaced femoral neck fractures on 36 patients with neurologic disorders, who were operated on by ERP approach (Group 1) and 151 patients without neurologic deficits, who were operated on by conventional posterolateral approach (Group 2). We compared operation time, the amount of postoperative blood loss, the early postoperative complication rates, the dislocation rate within 1 year, and duration of hospital stay between two groups. The amount of postoperative blood loss was significantly decreased in group 1(p < 0.01). There were no significant differences in mean operation time and early postoperative complication rate including wound problem, deep vein thrombosis or infection and duration of hospital stay. There was no dislocation after operation in group 1, but seven patient (4.6%) had dislocation in group 2. Nine patients (25.0%) died within postoperative 1 year in group 1 and twenty six patients (17.2%) died in group 2. Cementless bipolar hemiarthroplasty through ERP approach provides a favorable outcome for treatment of displaced femoral neck fracture in patients with neurologic disorders who is considered as high risk of dislocation. Also, it decreases the postoperative blood loss and the needs of postoperative abduction brace


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_4 | Pages 55 - 55
1 Feb 2017
Kawano T Furusho H Mori T
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Introduction. The issue regarding whether suction drainage should be used during TKA continues to be debated as both methods have disadvantages. The use of a drain may increase estimated blood loss and incidence of blood transfusion, while no drainage may be associated with ecchymosis formation surrounding the surgical site and wound problems. This prospective randomized study aimed to clarify the need for suction drainage in TKA by assessing the short-term postoperative outcome. Patients and Methods. We randomized 39 patients undergoing TKAs either with or without an intra-articular suction drain and divided to two groups. All the TKAs were performed by a single surgeon using cemented prostheses. As the perioperative blood management, air tourniquet was used during surgery, the knee arthrotomy was closed water-tightly, and all the patients were received both intra-articular and intra-venous administrations of tranexamic acid. After the surgery, a bulky compression dressing was applied to prevent the third space leakage of the blood for four days and rivaroxaban was used for venous thromboembolism prophylaxis for one week. The two groups were compared in terms of hemoglobin decrease, recovery of knee flexion, postoperative pain, and examined both the knee circumference and knee swelling. The incidence of short-term complications also evaluated. Results. TKAs were performed in 24 patients with (Group 1) and 15 patients without (Group 2) suction drain and there was no major complication in both groups. We found no significant differences in the mean postoperative blood loss, postoperative pain, and ROM during two weeks after TKA between the two groups. The amount of the intra-articular fluid measured with computed tomography as the postoperative knee swelling was similar between the two groups. Discussion and Conclusions. Recently, as the pharmacologic agents have been routinely used for venous thromboembolism prophylaxis after TKA for more than one week, perioperative bleeding should be managed more intensively. The administration of tranexamic acid has been widely reported to decrease the postoperative blood loss, and water-tightness of the arthrotomy closure can reduce hemarthrosis and arthrotomy leakage to the third space by a tamponade effect. The advantage of the bulky compression dressing reportedly is to reduce soft tissue edema and bleeding in an effort to promote venous drainage. Furthermore, this study did not demonstrate that intra-articular suction drain contributed to decrease the amount of intra-articular fluid at two weeks after the surgery. In conclusion, under the condition of routine pharmacologic VTE prophylaxis with intensive perioperative blood management, intra-articular suction drain has no advantage in TKA


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 526 - 526
1 Sep 2012
Kumar V Garg B Malhotra R
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Introduction. Tranexamic acid is an inhibitor of fibrinolysis that blocks the lysine-binding site of plasminogen to fibrin, and thereby decreases blood loss in patients undergoing surgery. Aims and objectives. A prospective, randomized, double-blind study was done on 100 patients undergoing primary cemented Unilateral Total Knee Arthroplasty to determine the effect of tranexamic acid on intra- and postoperative blood losses and on the transfusions requirements. Material and Methods. 100 patients undergoing unilateral cemented total knee Arthroplasty for osteoarthritis were enrolled for the study. All total knee replacement was done under combined spinal epidural anaesthesia with the use of tourniquet. 100 patients were randomized to tranexamic acid (15 mg/kg) given as a bolus intravenous injection or placebo (normal saline) given intravenously, 15 minutes before the release of tourniquiet. The blood loss (at removal of the drain 24 hours after the operation) and the number of blood transfusions required were recorded. The patients were screened for deep venous thrombosis with bilateral compression Ultrasonography using Colour Doppler imaging on the tenth postoperative day. The Hemoglobin level was measured preoperatively and on the 3rd postoperative day. The D-dimer levels were measured preoperatively and 24 hrs postoperatively. Results. Patients receiving tranexamic acid had a mean postoperative blood loss of 175 ml(range, 130–310ml) versus 330 ml (range, 210–460ml) (p value<0.05), and a total need for 3 blood transfusions versus 15. Only 3 out 50 patients in tranexamic acid group required blood transfusion whereas 12 out of 50 patients in the placebo group required transfusion. In the group receiving placebo the mean fall in hemoglobin was 2.1g/dl (range, 1.5–3.2) and in the group treated with tranexamic acid 1.3 g/dl (0.9–2) (p<0.05). At 24 hrs postoperatively, mean plasma D-dimer concentration in the Tranexamic group was half of that in the control group. No patient in either group had any evidence of deep vein thrombosis on bilateral compression Ultrasonography using Colour Doppler imaging done on the tenth postoperative day. Conclusion. Tranexamic acid 15 mg/kg given as a single bolus dose reduces blood loss, and transfusion requirements in unilateral primary cemented total kneearthroplasty without any increased risk of thrombus formation


Orthopaedic Proceedings
Vol. 88-B, Issue SUPP_I | Pages 182 - 182
1 Mar 2006
Prasad N Mullaji A Padmanabhan V
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Aim: To determine the factors affecting the blood loss and blood transfusion in primary total knee arthroplasty (TKA). Patients and methods: A prospective study involving 59 patients, who underwent primary total knee arthroplasty were included. A standardized protocol was used. Patients demographic details, intraoperative blood loss, post operative blood loss, pre-operative and post-operative hemoglobin values on day 1,2,7,14 were recorded. Results: Average(+/− SD) intraoperative and post operative blood loss were 220(+/−115.6) ml and 443.6 (+/−160.9)ml respectively. Male patients had post-operative blood loss more than female (p= 0.001, students t- test). Patients with rheumatoidarthritic knees and osteoarthritic knees did not show any statistical difference in intraoperative or postoperative blood loss. Tourniquet time and surgical time showed a positive correlation with intraoperative blood loss. Body mass index did not show any correlation with intraoperative or postoperative blood loss. Incidence of blood transfusion was more in patients with rheumatoid knees as the pre operative haemoglobin value was lower in these patients. There was no statistical difference in the incidence of blood transfusion in male and female patients. There was 66% incidence of blood transfusion in patient with pre-operative hemoglobin less then 10.5 gm% . The over all blood loss and blood transfusion incidence were lower in our series when compared to many other series reported in the literature. Discussion and conclusion: Gender has a role in blood loss in TKA, but diagnosis (OA or RA) has no role. Increase in tourniquet time and surgical time increase the intraoperative and hence the total blood loss. Blood loss and blood transfusion can be reduced to a lower level by following a standardized protocol. Blood transfusion depends on pre-operative hemoglobin rather than intraoperative blood loss. The post operative transfusion trigger can be brought to 8.5 gm% in a haemodynamically stable patient


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 33 - 33
1 Mar 2009
Baldini A Zampetti P De luca L Trinci A
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Femoral intramedullary canal referencing is utilized by most of the total knee arthroplasty (TKA) systems. Violation of the canal is performed in order to engage rod instruments in the femoral diaphysis and to refer of the anatomical axis of the femur. Fat embolism, activation of the coagulation cascade, and bleeding may occur from the reamed femoral canal. The purpose of our study was to validate a new set of _minimally-invasive friendly_ instruments which allow to prepare the femur without violating the intramedullary canal. Twenty-five consecutive patients undergoing primary TKA through a mini-subvastus approach were enrolled in the study after informed consent had been obtained. Results of this cohort (group 1) were compared to another contemporary group (group 2) of 25 TKAs operated by the same surgeon using intramedullary instruments. The two groups were matched for gender, deformity, degree of arthritis, and surgical approach. Reliability of the new extramedullary set of instruments was first tested in ten cadaveric limbs. Preoperative long weight-bearing AP and lateral view of the knee were obtained taking care of neutral limb positioning. Template of the mechanical and anatomical axis were performed. Distal femoral resection was planned according to the template, and considering a bone cut perpendicular to the mechanical axis of the femur. Measurement from the template were reproduced on the distal femoral cutting jig. Flexion-extension control of the distal femoral resection was obtained using the anterior meta-diaphyseal cortex reference. Depth of resection, and varus-valgus angulation were selected according to the previous measurements and referring over the most prominent distal femoral condyle. A double check was performed using an extra-medullary rod referring two and a half finger-breaths medially to the antero-superior iliac spine. Postoperative blood loss, pain, swelling, functional recovery, and complications were recorded. Radiographic alignment was measured with long film. Mechanical axis was within 0±2° in 88% of group 1 and 84% of group 2 (p> 0.05). There were no difference between the two groups regarding the operative time. In group 1, postoperative blood loss (740 vs 820 mL) was reduced but this difference did not reach the statistical significance (p=0.07). No difference was found in terms of postoperative pain, knee swelling, and functional recovery. Extramedullary reference with careful preoperative templating can be safely utilized during total knee arthroplasty. Avoiding the violation of the femoral canal may enhance the benefits of a less invasive approach


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_3 | Pages 17 - 17
1 Jan 2016
Maratt J Carroll K Jerabek SA Mayman DJ
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Tranexamic acid (TXA) has been shown to reduce post-operative blood loss, but the dosage and method of administration remains controversial. The purpose of our study was to study the effectiveness of topical TXA in a cohort of patients (n=224) undergoing TKA by a single surgeon. Two groups of patients who received topical TXA were compared to patients who did not receive TXA. Patients that received topical TXA had the least early postoperative blood loss, with patients that received topical TXA with a tourniquet and a drain having the least. Patients receiving TXA required fewer transfusions than patients who did not receive TXA and there was no difference in the rate of symptomatic DVT/PE. Our results support the use of topical TXA during TKA


Background. It is unclear whether the approach of hemiarthroplasty influence the outcomes in elderly patients with displaced femoral neck fractures. We conducted a randomized controlled trial to compare the direct lateral approach (DL approach) and posterolateral approach (PL approach) for hemiarthroplasty. Methods. This study included patients presenting to our hospital with displaced femoral neck fractures (Garden stage 3 or 4) from August 2010 to August 2011. 59 patients agreed the prospective study. They were randomized between the hemiarthroplasty using DL approach or PL approach. We evaluated and compared the operative time, perioperative blood loss, peri- and post-operative complications, and 5-year survival rates. Results. Thirty-two patients underwent the hemiarthroplasty using DL approach and 27 patients underwent hemiarthroplasty using PL approach. The mean operative time was 91 min in DL group and 77 min in PL group. A significant difference was observed for the mean operative times(p<0.005). The bleeding during surgery was 194 g in DL group and 180 g in PL group. The postoperative blood loss was 268 g in DL group and 264 g in PL group, no significant difference was observed postoperatively. Perioperative and postoperative complications were observed in 8 patients of DL group and 5 patients of the PL group. In DL group, perioperative complications included fracture in 1 patient, whereas postoperative complications included deep vein thrombosis in 7 patients. In PL group, postoperative complications included deep vein thrombosis in 3 patients, deep infection in 1 patient and subluxation of the outerhead in 1 patient. Two patients of DL group and 3patients of PL group suffered second hip fractures within the follow-up period, and 1 patient of PL group suffered periprosthetic fracture and treated conservatively. We identified 28 patients as dead in the follow-up period. The 5-year survival rate of DL group was 51.3% and that of PL group was 44.2%; there were not significantly different between the groups (log-rank test, p = 0.324). Conclusion. The mean operative time was significantly longer in DL groups, but peri- and post-operative complications and the surbival rate were not significantly different between the two groups. Surgical approach might not affect the outcomes of hemiarthroplasty in patients with femoral neck fractures


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_34 | Pages 221 - 221
1 Dec 2013
Aggarwal A VS S Marwaha N
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Background:. Blood loss, pain and wound healing contribute significantly to the perioperative morbidity after total knee arthroplasty. Prospective randomized controlled studies are lacking, to our knowledge. The purpose of this study was to determine whether platelet rich plasma (PRP) might prevent blood loss and postoperative pain and expedite wound healing following TKA. Methods:. Forty consecutive age, sex and BMI-matched patients who had unilateral or bilateral arthritis of the knee with similar deformity and preoperative range of motion were enrolled for this prospective randomized controlled double blinded clinical trial. Preoperative haemoglobin, range of motion, WOMAC and KSS scores were noted. Platelet-rich plasma was applied over the wound including the capsule, medial and lateral recesses in seventeen patients. Twentythree served as controls. Postoperative haemoglobin, blood loss, blood transfusion, VAS score, Wound score, KSS and WOMAC score were recorded and evaluated. Results:. Autologous platelet gel (APG) group had a smaller decrease in haemoglobin (Preop Hb–POD3 Hb) compared to control (1.97/3.56; p = 0.00). Postoperative blood loss was 173.2 ml vs 220.4 ml (p = 0.02). Blood transfusion was significantly less in the APG group (0.59 units/1.43 units; p = 0.001). APG group experienced less pain immediately, at 6 weeks and 12 weeks postoperatively (VAS 6.5/7.39, 2.67/3.84, 1.61/2.31; p = 0.00, 0.00, 0.00) and required fewer narcotics than control (15.24/22.65; p = 0.00). There was statistically significant difference in ROM at 5. th. day, 6 weeks and 3 months (79.44°/74.22°, 96.11°/87°, 97.6°/93.9° respectively; p = 0.00, 0.00, 0.01). There was no significant difference in the wound scores of two groups (30.96/34.23; p = 0.311). Significant difference was observed in KSS and WOMAC scores at 6 weeks (158.96/148.77, 17.3/23; p = 0.00, 0.00) and 12 weeks (166.96/161.42, 10.86/14.61; p = 0.00, 0.00). However no significant difference was found at 6 months. Conclusions:. We found significant reduction in blood loss, postoperative pain and need for narcotics after the use of autologous platelet gel in patients of total knee arthroplasty. Quicker and better functional outcome was observed in the APG group. However, at six months and later follow up, both groups had similar functional scores. Its role on wound healing was statistically insignificant. Level of Evidence: Therapeutic Level II


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_22 | Pages 78 - 78
1 Dec 2016
Su E
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Perioperative blood conservation remains an important topic today in order to reduce complications, improve function, and facilitate recovery after a total knee replacement (TKR). Studies have shown that the degree of postoperative anemia is related to an increase in complications. A greater blood loss and need for transfusion is associated with a higher risk of infection, a slower recovery process, increased morbidity to patients, as well as an increased cost to the health care system. Typical blood loss estimates range from 800cc to over 1700cc, when accounting not only for intraoperative but postoperative blood loss. Several strategies have been developed to help mitigate the risk of perioperative blood loss and need for subsequent transfusion. Firstly, preoperative measures such as vitamin and mineral supplementation can ensure the starting hemoglobin and red cell count are maximised. Additionally, erythropoietin can be helpful in refractory cases of preoperative anemia. Preoperative autologous blood donation was used extensively in the past, but has fallen out of favor due to its inefficiency and cost. Intraoperatively, measures such as the use of a tourniquet, meticulous technique, and expeditious surgery can help reduce blood loss. The most effective method, however, has been the use of tranexamic acid (TXA). TXA, an antifibrinolytic compound, has been extremely effective at reducing perioperative blood loss without increasing the risk of thromboembolic events. TXA can be used topically or intravenously. Other methods that can reduce intraoperative blood loss include the use of fibrin sealants, applied to the soft tissues and bony surfaces around the knee. Postoperatively, the avoidance of wound drains is associated with a higher blood count and reduced transfusion risk. Alternatively, drainage reinfusion systems can be used to raise the postoperative blood count, particularly in cases of bilateral TKR


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_8 | Pages 80 - 80
1 May 2016
Kang J Moon K
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Purpose. Topical application of tranexamic acid (TXA) to bleeding wound surfaces reduces blood loss in patients undergoing some major surgeries, without systemic complications. The objective of this study was to determine if TXA applied topically reduced postoperative bleeding and transfusion rates after primary total hip arthroplasty (THA) and primary bipolar hemiarthroplasty (BA). Methods. We retrospectively compared 77 patients undergoing hip arthroplasty surgery in which tranexamic acid was routinely used, to a group of 70 patients from a similar time frame prior to the introduction of tranexamic acid use. In the former group 40 patients had THA and 37 patients BA; in the latter group 35 patients underwent THA and 35 patients BA. In both THA and BA, the joint was bathed in TXA solution (at a concentration of 3.0 g TXA per 100 mL saline) at three points during the procedure. The primary outcome was blood loss calculated from the difference between the preoperative hemoglobin level and the corresponding lowest postoperative value or hemoglobin level prior to transfusion. Results. Postoperative transfusions decreased significantly with TXA, dropping from 50.0% to 27.5%, and from 63% to 48%, in the THA and BA groups, respectively. We also found significant reductions in hemoglobin loss and blood loss of 8 g/dL and 336 mL respectively for THAs and 6 g/dL and 176 mL respectively for BAs following the introduction of tranexamic acid. There was no difference in the rates of deep-vein thrombosis or pulmonary embolism between the two groups. Discussion and Conclusion. Topical application of TXA significantly reduces postoperative blood loss and transfusion risk in THA and BA, with no clinically important increase in complications being identified