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Bipolar Sealers Do not Improve Blood Loss or Functional Outcomes of Primary Total Knee Arthroplasty.

双极封闭剂不能改善初次全膝关节置换术的失血或功能结局。

  • 影响因子:1.76
  • DOI:10.1055/s-0038-1676516
  • 作者列表:"Pasqualotto S","Demey G","Michelet A","Nover L","Saffarini M","Dejour D
  • 发表时间:2020-01-01
Abstract

:Several methods were introduced to limit perioperative blood loss in total knee arthroplasty (TKA). By transcollation of soft tissues below 100°C, bipolar sealers intend to reduce bleeding and tissue damage, compared with conventional electrocautery. Existing studies report contradictory findings about the performance of bipolar sealers. The purpose of this study was to evaluate the effect of a bipolar sealer on blood loss, transfusions, hospital length of stay (LOS), and functional scores in primary TKA. In this single-center prospective study, 101 patients, undergoing primary TKA in a fast-track setting without tourniquet use, were randomly assigned to either (1) the study group which was operated with a bipolar sealer or (2) the control group operated with conventional electrocautery. The study cohort comprised 49 men and 52 women, aged 71.1 ± 8.8 years. There was no significant difference between the bipolar sealer group and the control group in terms of blood loss at day 3 (1,240 ± 547.4 vs. 1,376 ± 584.4 mL; p = ns [not significant]), transfusion rate (10 vs. 4%; p = ns), surgery time (48.2 ± 10.8 vs. 46.6 ± 9.1 minute; p = ns) or LOS (4.1 ± 2.7 vs 4.3 ± 2.0 days; p = ns). At a mean follow-up of 63.3 ± 4.9 days, there was no significant difference between the bipolar sealer group and the control group in terms of net improvement of Knee Society Score (KSS) knee (26.0 ± 16.7 vs. 23.7 ± 12.3; p = ns) and KSS function (20.4 ± 19.3 vs. 20.8 ± 19.9; p = ns). Compared with the use of conventional electrocautery in primary TKA without tourniquet, we found no effect of bipolar sealer use on blood loss, transfusion rates, LOS, or functional recovery. This is a Level II, prospective cohort study.

摘要

介绍了几种限制全膝关节置换术 (TKA) 围手术期失血的方法。与传统电灼术相比,双极封闭剂通过在 100 ℃ 以下穿刺软组织,旨在减少出血和组织损伤。现有研究报告了关于双极密封剂性能的矛盾发现。本研究的目的是评价双极封闭器对初次TKA失血量、输血、住院时间 (LOS) 和功能评分的影响。在这项单中心前瞻性研究中,101 例患者,在没有使用止血带的快速通道环境中接受初次TKA,被随机分配到研究组采用双极封闭器进行手术,对照组采用常规电灼术进行手术。研究队列包括 49 例男性和 52 例女性,年龄 71.1 ± 8.8 岁。双极封闭器组和对照组在 1,240 天的失血量方面没有显著差异 (547.4 ± vs. 1,376 ± 584.4 mL; P = ns [不显著]),输血率 (10 vs. 4%; P = ns),手术时间 (48.2 ± 10.8 vs. 46.6 ± 9.1 分钟; P = ns) 或LOS (4.1 ± 2.7 vs 4.3 ± 2.0 天;P = ns)。平均随访 63.3 ± 4.9 天,双极封闭器组和对照组在膝关节社会评分 (KSS) 的净改善方面无显著差异膝关节 (26.0 ± 16.7 vs. 23.7 ± 12.3; P = ns) 和KSS功能 (20.4 ± 19.3 vs. 20.8 ± 19.9; P = ns)。与在不使用止血带的初次TKA中使用常规电灼相比,我们发现双极封口机的使用对失血量、输血率、LOS或功能恢复没有影响。这是一项II级、前瞻性队列研究。

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发表时间:2020-02-01
DOI:10.1007/s40520-019-01202-w
作者列表:["Gan J","Tu Q","Miao S","Lei T","Cui X","Yan J","Zhang J"]

METHODS:BACKGROUND:Postoperative cognitive dysfunction (POCD) is a common complication after orthopedic surgery, which is not conducive to the prognosis of the elderly. AIMS:We performed this study to investigate the effects of oxycodone applied for patient-controlled intravenous analgesia (PCIA) on postoperative cognitive function in elderly patients after total hip arthroplasty (THA). METHODS:Ninety-nine participants were enrolled and allocated into two groups: oxycodone group (group O) and sufentanil group (group S). The primary outcome was the incidence of POCD, diagnosed according to the changes in the Mini-mental status examination (MMSE) and Montreal Cognitive Assessment (MoCA) scores. The secondary outcomes included the plasma levels of S-100B protein and neuron-specific enolase (NSE), the amount of postoperative analgesic consumption and the incidence of adverse reactions. RESULTS:The incidence of POCD was significantly lower in patients receiving oxycodone up to the 3rd postoperative day (POD, 1st POD 27.3% vs. 51.1%, P = 0.021; 3rd POD 20.5% vs. 40.0%, P = 0.045), as compared to patients receiving sufentanil. The MMSE and MoCA scores of both groups decreased to varying degrees. However, compared with group S, the MMSE scores at 1st POD, 3rd POD, 5th POD and 7st POD in group O were higher than that in group S, while MoCA scores at 1st POD, 3rd POD and 5th POD in group O were higher. Compared with group S, the plasma levels of S-100B protein in group O at 4 h, 8 h, 12 h post-surgery were lower. While the plasma levels of NSE in group O at 4 h, 8 h, 12 h, 24 h post-surgery were lower. Number of PCIA boluses and consumption of analgesic drug during the first two POD were similar between two groups. However, postoperative incidence of nausea, vomiting and pruritus was significantly lower in patients receiving oxycodone. CONCLUSION:Oxycodone applied for PCIA in elderly patients after THA could reduce the incidence of POCD, improve postoperative cognitive function and decrease the adverse reactions.

影响因子:1.69
发表时间:2020-02-01
DOI:10.1097/BPO.0000000000001393
作者列表:["Jain MJ","Inneh IA","Zhu H","Phillips WA"]

METHODS:BACKGROUND:Primary treatment for Blount disease has changed in the last decade from osteotomies or staples to tension band plate (TBP)-guided hemiepiphysiodesis. However, implant-related issues have been frequently reported with Blount cases. The purpose of our study is to evaluate the surgical failure rates of TBP in Blount disease and characterize predictors for failure. METHODS:We performed an Institutional Review Board-approved retrospective chart-review of pediatric patients with Blount disease to evaluate the results of TBP from 2008 to 2017 and a systematic literature review. Blount cases defined as pathologic tibia-vara with HKA (hip-knee-ankle) axis and MDA (metaphyseal-diaphyseal angle) deviations ≥11 degrees were included in the analysis. Surgical failure was categorized as mechanical and functional failure. We studied both patient and implant-related characteristics and compared our results with a systematic review. RESULTS:In 61 limbs of 40 patients with mean follow-up of 38 months, we found 41% (25/61) overall surgical failure rate and 11% (7/61) mechanical failure rate corresponding to 11% to 100% (range) and 0% to 50% (range) in 8 other studies. Statistical comparison between our surgical failure and nonfailure groups showed significant differences in deformity (P=0.001), plate material (P=0.042), and obesity (P=0.044) in univariate analysis. The odds of surgical failure increased by 1.2 times with severe deformity and 5.9 times with titanium TBP in the multivariate analysis after individual risk-factor adjustment. All 7 mechanical failures involved breakage of cannulated screws on the metaphyseal side. CONCLUSIONS:Most of the studies have reported high failure rates of TBP in Blount cases. Besides patient-related risk factors like obesity and deformity, titanium TBP seems to be an independent risk factor for failure. Solid screws were protective for mechanical failure, but not for functional failure. In conclusion, efficacy of TBP still needs to be proven in Blount disease and implant design may warrant reassessment. LEVEL OF EVIDENCE:Level III-retrospective comparative study with a systematic review.

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影响因子:2.43
发表时间:2020-01-15
DOI:10.5435/JAAOS-D-18-00777
作者列表:["Chen DQ","Montgomery SR Jr","Cancienne JM","Werner BC"]

METHODS:INTRODUCTION:As cancer treatments continue to improve the overall survival rates, more patients with a history of cancer will present for anatomic total shoulder arthroplasty (TSA). Therefore, it is essential for orthopaedic surgeons to understand the differences in care required by this growing subpopulation. Although the current research suggests that good outcomes can be predicted when appropriately optimized patients with cancer undergo lower extremity total joint arthroplasty, similar studies for TSA are lacking. The primary study question was to examine whether a history of cancer was associated with an increased rate of venous thromboembolism (VTE) after TSA. Secondarily, we sought to examine any association between a history of prostate and breast cancer and surgical or medical complications after TSA. METHODS:Using a national insurance database, male patients with a history of prostate cancer and female patients with a history of breast cancer undergoing anatomic TSA for primary osteoarthritis were identified and compared with control subjects matched 3:1 based on age, sex, diabetes mellitus, and tobacco use. Patients with a history of VTE and patients who underwent reverse TSA or hemiarthroplasty were excluded. RESULTS:Female patients with a history of breast cancer and male patients with a history of prostate cancer undergoing TSA had significantly higher incidences of acute VTE (including deep venous thrombosis and pulmonary embolism) compared with matched control subjects (female patients: odds ratio, 1.41; 95% confidence interval, 1.10 to 1.81; P = 0.024 and male patients: odds ratio, 1.37; 95% confidence interval, 1.05 to 1.79; P = 0.023). No significant differences were noted in the incidences of any other complications assessed. CONCLUSION:Although a personal history of these malignancies does represent a statistically significant risk factor for acute VTE after anatomic TSA, the overall VTE rate remains modest and acceptable. The rates of other surgical and medical complications are not significantly increased in patients with a history of these cancers after TSA compared with control subjects.

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