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Current concepts review: Management of Achilles tendinopathy overview 当前概念综述:跟腱病的治疗综述
Q4 Medicine Pub Date : 2021-07-01 DOI: 10.1016/j.jajs.2021.03.002
Sarah T. Lancaster, Devendra Mahadevan

Achilles tendinopathy can be a debilitating condition affecting 2–3 in 1000 of the population, rising to 1 in 20 in runners. A variety of non-operative and operative treatments are available for both insertional and non-insertional tendinopathy. This review summarises the current management options of these different pathologies.

跟腱病是一种使人衰弱的疾病,每1000人中就有2-3人患有跟腱病,在跑步者中,这一比例上升到20人中有1人。对于插入性和非插入性肌腱病变,有多种非手术和手术治疗方法。本文综述了这些不同病理的当前治疗方案。
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引用次数: 0
The management of talar osteochondral lesions - Current concepts 距骨软骨病变的处理-当前概念。
Q4 Medicine Pub Date : 2021-07-01 DOI: 10.1016/j.jajs.2021.04.002
Tian Lan , Helen S. McCarthy , Charlotte H. Hulme , Karina T. Wright , Nilesh Makwana

Osteochondral lesions of the talus (OLTs) are a common complication following trauma, involving both the articular cartilage and the underlying subchondral bone, with variable aetiologies and often presenting with non-specific symptoms. Diagnosis of OLTs requires a combination of clinical assessment and imaging and despite many different treatment options, there is no generalised consensus regarding which option is the most effective. Left untreated, OLTs risk progressing to osteoarthritis. Acute non-displaced OLTs can be treated non-operatively. However, OLTs refractory to non-surgical care for three to six months may be suitable for surgical care. In these cases, conservative treatments are often unsuccessful, particularly for larger and more severe defects and so the majority require surgical intervention. Although bone marrow stimulation techniques remain the “gold standard” for lesions <150 mm2, there still requires a need for better long term clinical data and cost-benefit analyses compared with other treatment options. Biological attempts at either regenerating or replacing the articular cartilage are however demonstrating some promising results, but each with their own advantages and disadvantages. In this review, we summarise the clinical management of OLTs and present the current concepts of different treatment regimes.

距骨软骨损伤(OLTs)是创伤后常见的并发症,涉及关节软骨和下方软骨下骨,病因各异,通常表现为非特异性症状。OLT的诊断需要临床评估和成像相结合,尽管有许多不同的治疗方案,但对于哪种方案最有效,还没有达成普遍共识。如果不治疗,OLT有发展为骨关节炎的风险。急性非移位OLT可以非手术治疗。然而,非手术治疗三到六个月的OLT可能适合手术治疗。在这些情况下,保守治疗往往不成功,尤其是对于较大和更严重的缺陷,因此大多数需要手术干预。尽管骨髓刺激技术仍然是病变2的“金标准”,但与其他治疗方案相比,仍需要更好的长期临床数据和成本效益分析。然而,再生或替换关节软骨的生物学尝试正在证明一些有希望的结果,但每种方法都有各自的优缺点。在这篇综述中,我们总结了OLT的临床管理,并介绍了不同治疗方案的当前概念。
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引用次数: 13
Attune total knee arthroplasty: is there evidence of early tibial component de-bonding? A prospective cohort study with a minimum two year follow-up 全膝关节置换术:是否有早期胫骨脱粘的证据?一项至少随访两年的前瞻性队列研究
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2021.03.007
Thomas Robinson , Samuel W. King , Richard WD. Pilling , Joseph Aderinto , Veysi Veysi , Owen Wall , Jonathan Lamb , Hemant Pandit

New TKA are designed to optimize patient outcomes and improve implant longevity such as the Attune TKA. Concerns have been raised regarding a potentially high rate of early de-bonding at the implant–cement interface of the tibial component. Our study aimed to prospectively assess the clinical outcomes and radiographs of a consecutive series of patients undergoing either Attune TKA or another modern TKA for OA to establish failure rates and compare radiological abnormalities.

96 Attune TKA performed by three surgeons at our local center were matched to 96 control TKA (PFC/Vanguard) performed between 2015 and 2017. Day one, one year and two year post surgery radiographs were analyzed by two independent, blinded assessors. Clinical outcome was assessed using the Oxford Knee Score and survival of the implant recorded. Patients were contacted two years from surgery, 93 Attune and 92 control TKAs attended for clinical and radiological assessment by the same independent assessors.

No TKA in either group were revised. No significant radiolucencies (≥2 mm) at the cement-bone or implant-cement interfaces were encountered in either group. The incidence of radiolucencies (<2 mm) across both interfaces was similar between both groups and did not affect clinical outcome. There was no significant difference between the incidence, progression and extent of radiolucencies at two years follow-up in either of the groups as compared with one year. No clinically relevant adverse radiographic features were found in this prospective cohort study comparing a consecutive series of Attune TKA with a matched group of established, modern TKA designs.

新的TKA旨在优化患者的治疗效果,提高植入物的使用寿命,如Attune TKA。对于胫骨假体-骨水泥界面早期脱粘的潜在高速率的担忧已经被提出。我们的研究旨在前瞻性地评估连续一系列接受Attune TKA或另一种现代TKA治疗OA的患者的临床结果和x线片,以确定失败率并比较放射学异常由我们当地中心三名外科医生进行的tune TKA与2015年至2017年期间进行的96例对照TKA (PFC/Vanguard)相匹配。术后第一天、一年和两年的x线片由两位独立的盲法评估者进行分析。使用牛津膝关节评分评估临床结果并记录植入物的存活时间。手术后两年内与患者联系,由相同的独立评估人员对93例tune患者和92例对照tka患者进行临床和放射学评估。两组均未修改TKA。两组均未见骨水泥-骨或种植体-骨水泥界面处明显的辐射率(≥2mm)。两组间两个界面的辐射率(2mm)发生率相似,不影响临床结果。两组随访两年的放射率、进展和程度与随访一年相比无显著差异。在这项前瞻性队列研究中,没有发现临床相关的不良影像学特征,将连续的一系列Attune TKA与匹配的一组已建立的现代TKA设计进行比较。
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引用次数: 4
Functional outcomes of paediatric medial patellofemoral ligament (MPFL) reconstruction surgery with or without patella distalisation and medialisation for recurrent patella instability 小儿髌股内侧韧带(MPFL)重建手术治疗复发性髌骨不稳时髌骨远端和内侧化的功能结果
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2021.03.005
Andrew Hannah , Timothy Pigott , Fazal Ali , Nicolas Nicolaou

Background

No studies to date have compared the outcome of isolated medial patellofemoral ligament reconstruction (MPFLR) surgery with MPFLR plus re-alignment procedures (MPFLR+) in the paediatric population, making it unclear when additional re-alignment procedures are required.

By retrospectively reviewing and comparing our MPFLR patient cohorts’ we aim to generate guidance to aid surgical planning.

Methods

University of Salford ethical approval was secured and theatre records were retrospectively reviewed, identifying all patients less than 18 years-of-age who received MPFLR surgery between October 01, 2015 and October 01, 2019.

All patients were contacted for documented consent. Pre-operative and post-operative outcome questionnaires were reviewed in conjunction with patient’s medical records and radiological imaging.

Results

A total of 75 MPFLR surgeries were identified and 33 patients (40 knees) consented for inclusion in the study; 23 MPFLR and 17 MPFLR+. Mean improvement in outcome scores achieved statistical significance (P < 0.05) in almost all questionnaire subtypes for both groups. A greater improvement in Quality of life (QoL) correlated with an increased tibial tuberosity–trochlear groove distance (TT-TG) in the MPFLR group 0.557 (P = 0.025) and a lower Patellotrochlear index (PTI) - 0.549 (P = 0.034) in the MPFLR + group.

Increased Body Mass Index (BMI) correlated with worse outcomes in numerous questionnaire subtypes (P = 0.05 and P = 0.01) for the MPFLR + group.

Increased Trochlear dysplasia correlated – 0.541 (P = 0.03) with less improvement in symptoms following MPFLR + surgery and an increased need for revision surgery 0.312 (P = 0.053) in both groups.

Conclusions

Both groups achieved good outcomes and statistically significant improvements in almost all mean outcome scores following MPFLR surgery, suggesting that our current described selection criteria are appropriate. While we were unable to identify any absolute radiological cut off figures in this diverse population with changing anatomy, we recommend additional procedures be considered for high TT-TG distances and or significant patella alta.

Patients with a high BMI should be supported in losing weight prior to surgery and patients with trochlear dysplasia need counselling with regard to potential lesser improvements in symptoms, a higher risk of failure and need for revision surgery. Additional realignment procedures did not appear to offer any improved outcome in the presence of trochlear dysplasia.

Level of Evidence IV: Case series.

到目前为止,还没有研究比较孤立的髌股内侧韧带重建术(MPFLR)与MPFLR+重新对准手术(MPFLR+)在儿科人群中的结果,因此不清楚何时需要额外的重新对准手术。通过回顾性回顾和比较我们的MPFLR患者队列,我们旨在为辅助手术计划提供指导。方法获得了索尔福德大学的伦理批准,回顾性审查了所有在2015年10月1日至2019年10月1日期间接受MPFLR手术的18岁以下患者的手术室记录。与所有患者取得书面同意。结合患者的医疗记录和放射成像,对术前和术后结果问卷进行了审查。结果共发现75例MPFLR手术,33例患者(40个膝关节)同意纳入研究;23 MPFLR和17 MPFLR+。结果评分的平均改善具有统计学意义(P <两组几乎所有问卷类型的差异均为0.05)。生活质量(QoL)的改善与MPFLR组胫骨结节-滑车沟距离(TT-TG)增加(0.557)(P = 0.025)和MPFLR +组髌骨滑车指数(PTI)降低(0.549)(P = 0.034)相关。在MPFLR +组中,体重指数(BMI)的增加与许多问卷亚型的较差结果相关(P = 0.05和P = 0.01)。滑车发育不良的增加与MPFLR +手术后症状改善较少相关0.541 (P = 0.03),两组患者对翻修手术的需求增加相关0.312 (P = 0.053)。结论两组在MPFLR手术后均获得了良好的预后,几乎所有平均预后评分均有统计学上的显著改善,表明我们目前描述的选择标准是合适的。虽然我们无法在这种不同的人群中确定任何绝对的放射切线,但我们建议对高TT-TG距离和或显著的髌骨上缘考虑额外的手术。应支持高BMI患者在手术前减肥,滑车发育不良患者需要咨询有关症状改善可能较小、失败风险较高和需要翻修手术的问题。在滑车发育不良的情况下,额外的调整程序似乎没有提供任何改善的结果。证据级别IV:案例系列。
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引用次数: 0
Lateral epicondyle osteotomy for correction of valgus deformity during total knee arthroplasty: Surgical technique and clinical outcomes 外侧上髁截骨术矫正全膝关节置换术中外翻畸形:手术技术和临床结果
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2020.11.001
Fabio Bustamante , Andres Correa-Valderrama , Willy Stangl-Herrera , Andrés A. Echeverry-Vélez , Erika J. Cantor , Tamy Ron-Translateur , Julio C. Palacio-Villegas

Background

Lateral epicondyle osteotomy is one of the surgical choices when seeking a proper equalization and balance of the flexion and extension gaps during the correction of a valgus knee deformity, when performing a total knee arthroplasty (TKA). However, its use is not frequent, and the reports described in literature are scarce. The aim of this study was to describe the clinical outcomes of the patients in which lateral epicondyle osteotomy was performed during TKA in a consecutive group of patients with valgus deformity.

Methods

Retrospective study of 18 patients with valgus deformity, who had lateral epicondyle osteotomy during TKA, from January 2016 to December 2018. The type of valgus deformity was assessed with Ranawat’s classification. The femorotibial angle was measured with a panoramic leg standing X-rays before and after the TKA; The function was evaluated with the Knee Society Score-KSS and Oxford Knee Score scale.

Results

The average age was 71.8 ± 6.1 years and 13 cases were women. According to Ranawat’s classification, 11 knees had Grade III (>20°) valgus deformity. The mean preoperative and postoperative femorotibial angles were 25.8° ± 9.9° and 7.1° ± 1.8°, respectively. Functional improvement was observed through the KSS and Oxford scales, with an average increase of 37.4 ± 13.4 and 32.4 ± 6.7 points compared to preoperative. No evidence of intraoperative or postoperative complications associated with the procedure was found.

Conclusion

In these patients, the osteotomy of the lateral epicondyle proved to be an effective surgical option for the correction of valgus deformity during TKA, allowing proper alignment of the limb with good functional results.

背景:在进行全膝关节置换术(TKA)时,外翻膝关节畸形矫正过程中,为寻求屈伸间隙的适当平衡,外侧上髁截骨是一种手术选择。然而,它的使用并不频繁,文献中描述的报道很少。本研究的目的是描述连续一组外翻畸形患者在TKA期间行外侧上髁截骨术的临床结果。方法回顾性分析2016年1月至2018年12月在TKA中行外侧上髁截骨术的18例外翻畸形患者。采用Ranawat分类对外翻畸形类型进行评估。在TKA前后用全景腿部站立x线片测量股骨胫骨角;用膝关节社会评分- kss和牛津膝关节评分量表评估功能。结果患者平均年龄71.8±6.1岁,女性13例。根据Ranawat的分类,11个膝关节有III级(>20°)外翻畸形。术前和术后平均股胫角分别为25.8°±9.9°和7.1°±1.8°。通过KSS和Oxford量表观察功能改善,与术前相比平均提高37.4±13.4分和32.4±6.7分。没有发现术中或术后并发症的证据。结论在这些患者中,外上髁截骨术被证明是一种有效的手术选择,可以在TKA中矫正外翻畸形,使肢体正确对准,并获得良好的功能效果。
{"title":"Lateral epicondyle osteotomy for correction of valgus deformity during total knee arthroplasty: Surgical technique and clinical outcomes","authors":"Fabio Bustamante ,&nbsp;Andres Correa-Valderrama ,&nbsp;Willy Stangl-Herrera ,&nbsp;Andrés A. Echeverry-Vélez ,&nbsp;Erika J. Cantor ,&nbsp;Tamy Ron-Translateur ,&nbsp;Julio C. Palacio-Villegas","doi":"10.1016/j.jajs.2020.11.001","DOIUrl":"10.1016/j.jajs.2020.11.001","url":null,"abstract":"<div><h3>Background</h3><p>Lateral epicondyle osteotomy<span> is one of the surgical choices when seeking a proper equalization and balance of the flexion and extension gaps during the correction of a valgus knee<span> deformity, when performing a total knee arthroplasty<span> (TKA). However, its use is not frequent, and the reports described in literature are scarce. The aim of this study was to describe the clinical outcomes of the patients in which lateral epicondyle osteotomy was performed during TKA in a consecutive group of patients with valgus deformity.</span></span></span></p></div><div><h3>Methods</h3><p>Retrospective study of 18 patients with valgus deformity, who had lateral epicondyle osteotomy during TKA, from January 2016 to December 2018. The type of valgus deformity was assessed with Ranawat’s classification. The femorotibial angle was measured with a panoramic leg standing X-rays before and after the TKA; The function was evaluated with the Knee Society Score-KSS and Oxford Knee Score scale.</p></div><div><h3>Results</h3><p>The average age was 71.8 ± 6.1 years and 13 cases were women. According to Ranawat’s classification, 11 knees had Grade III (&gt;20°) valgus deformity. The mean preoperative and postoperative femorotibial angles were 25.8° ± 9.9° and 7.1° ± 1.8°, respectively. Functional improvement was observed through the KSS and Oxford scales, with an average increase of 37.4 ± 13.4 and 32.4 ± 6.7 points compared to preoperative. No evidence of intraoperative or postoperative complications associated with the procedure was found.</p></div><div><h3>Conclusion</h3><p>In these patients, the osteotomy of the lateral epicondyle proved to be an effective surgical option for the correction of valgus deformity during TKA, allowing proper alignment of the limb with good functional results.</p></div>","PeriodicalId":38088,"journal":{"name":"Journal of Arthroscopy and Joint Surgery","volume":"8 2","pages":"Pages 122-128"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jajs.2020.11.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42566342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Surgical complications of total knee replacement after solid organ transplant: A systematic review of the literature 实体器官移植后全膝关节置换术的手术并发症:文献系统回顾
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2021.04.004
Patel J, O'Connor O, Ngu A, Melton JTK

Background

Since the mid-twentieth century, solid organ transplantation has become established worldwide and conferred immense benefit to hundreds of thousands of patients. Comorbidities associated with end stage organ failure and the use of immunosuppressive treatment result in solid organ transplant patients (SOTP) commonly developing bone disease necessitating joint replacement. The increasing life span of SOTPs has also resulted in an increase in age related osteoarthritis. The aim of this literature review was to summarise the evidence available on outcomes following total knee replacements (TKR) in SOTP's.

Methods

A systematic search of the literature was performed by authors using PRISMA guidelines. A total of 10 papers were reviewed for this article. Data was extracted from the papers regarding complications specifically related to TKR.

Results

SOTP's are more susceptible to post-operative complications following TKR. Infection was the most common post-operative complication encountered (6.99%). Overall complication rate reported was 22.58%. Renal transplant patients have shown to have a higher infection rate when compared to liver patients. Mortality rate is increased in this patient group (5.91%). Post-operative knee scores show good to excellent clinical results.

Conclusion

This review of the literature has highlighted from the limited data that there is an increased risk of post-operative complications following TKR in SOTP's. Further data is required to more accurately quantify this risk. Despite this, the benefit to be gained from TKR may outweigh the proven increased risk.

Implications

When counselling solid organ transplant patients for TKR, information regarding the increased post-operative risk should be discussed. This may become a more common scenario as life expectancy following SOT increases.

自二十世纪中叶以来,实体器官移植已在世界范围内确立,并为成千上万的患者带来了巨大的益处。与终末期器官衰竭和使用免疫抑制治疗相关的合并症导致实体器官移植患者(SOTP)通常发展为需要关节置换的骨病。SOTPs寿命的延长也导致了年龄相关性骨关节炎的增加。本文献综述的目的是总结SOTP患者全膝关节置换术(TKR)后预后的现有证据。方法作者按照PRISMA指南系统检索相关文献。本文共审阅了10篇论文。数据摘自与TKR相关的并发症的论文。结果sotp患者易发生TKR术后并发症。感染是最常见的术后并发症(6.99%)。总并发症发生率为22.58%。与肝脏患者相比,肾移植患者的感染率更高。该患者组死亡率增高(5.91%)。术后膝关节评分显示良好至优异的临床效果。结论本文献综述从有限的数据中强调了SOTP患者TKR术后并发症的风险增加。需要进一步的数据来更准确地量化这一风险。尽管如此,从TKR中获得的好处可能超过已证实的增加的风险。当对实体器官移植患者进行TKR咨询时,应讨论有关术后风险增加的信息。随着SOT后预期寿命的增加,这可能会成为更常见的情况。
{"title":"Surgical complications of total knee replacement after solid organ transplant: A systematic review of the literature","authors":"Patel J,&nbsp;O'Connor O,&nbsp;Ngu A,&nbsp;Melton JTK","doi":"10.1016/j.jajs.2021.04.004","DOIUrl":"10.1016/j.jajs.2021.04.004","url":null,"abstract":"<div><h3>Background</h3><p><span><span>Since the mid-twentieth century, solid organ transplantation<span> has become established worldwide and conferred immense benefit to hundreds of thousands of patients. Comorbidities associated with end stage organ failure and the use of immunosuppressive treatment result in solid organ transplant patients (SOTP) commonly developing bone disease necessitating joint replacement. The increasing life span of SOTPs has also resulted in an increase in age related </span></span>osteoarthritis. The aim of this literature review was to summarise the evidence available on outcomes following </span>total knee replacements (TKR) in SOTP's.</p></div><div><h3>Methods</h3><p>A systematic search of the literature was performed by authors using PRISMA guidelines. A total of 10 papers were reviewed for this article. Data was extracted from the papers regarding complications specifically related to TKR.</p></div><div><h3>Results</h3><p>SOTP's are more susceptible to post-operative complications following TKR. Infection was the most common post-operative complication encountered (6.99%). Overall complication rate reported was 22.58%. Renal transplant patients have shown to have a higher infection rate when compared to liver patients. Mortality rate is increased in this patient group (5.91%). Post-operative knee scores show good to excellent clinical results.</p></div><div><h3>Conclusion</h3><p>This review of the literature has highlighted from the limited data that there is an increased risk of post-operative complications following TKR in SOTP's. Further data is required to more accurately quantify this risk. Despite this, the benefit to be gained from TKR may outweigh the proven increased risk.</p></div><div><h3>Implications</h3><p>When counselling solid organ transplant patients for TKR, information regarding the increased post-operative risk should be discussed. This may become a more common scenario as life expectancy following SOT increases.</p></div>","PeriodicalId":38088,"journal":{"name":"Journal of Arthroscopy and Joint Surgery","volume":"8 2","pages":"Pages 96-101"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.jajs.2021.04.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46197267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Component asymmetry in bilateral total knee arthroplasty in the middle eastern population 中东人群双侧全膝关节置换术中的构件不对称
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2020.12.005
Raghavan Sivaram , Atul Bandi , Saseendar Shanmugasundaram , Ahmed Tarek Hafez , Ahsan Javed Butt , Hesham Al Khateeb

Purpose

Proper sizing of the femoral and tibial components is an important step in total knee replacement (TKA). When performing bilateral TKA, there is often an opinion that the same size prosthesis as the opposite side will suffice, even though there are reports of anatomical differences between sides. In this study, we quantify the incidence of asymmetry in femoral and tibial component sizes in staged bilateral TKA in a Middle East population.

Methods

This is a retrospective observational study of all patients who underwent uncomplicated bilateral TKA with the same type of prosthesis by two surgeons at the same institute, between January 2013 and January 2019.

Results

There were 123 patients, femoral and tibial component size variationswerepresent in 42patients (34.1%) and 30 patients (24.4%) respectively. The variation was evident in both posterior substituting (PS) and cruciate retaining (CR) designs. The femoral components had a higher variation in size between the sides for both PS and CR designs than the tibial components for both designs. The percentage variation in the size of the femoral component was similar for PS and CR subgroups (32.7% and 33.3% respectively). However, for the tibial component, the size variation was higher for PS design (24.5%) than for CRdesign (18.7%). 7.3% had a side-to-side variation by 2 or more sizes in both femoral and tibial components.

Conclusion

Variations in the size of the femoral and tibial components is common in patients undergoing bilateral TKA. Contralateral component size should not be used as the determinant of component sizes on the other side.

目的选择合适的股骨和胫骨假体尺寸是全膝关节置换术(TKA)的重要步骤。在进行双侧TKA时,通常认为与对侧相同大小的假体就足够了,尽管有报道称两侧解剖结构存在差异。在这项研究中,我们量化了中东人群分阶段双侧TKA中股骨和胫骨假体大小不对称的发生率。方法回顾性观察研究2013年1月至2019年1月在同一研究所由两名外科医生接受相同类型假体的无并发症双侧TKA的所有患者。结果123例患者中,股骨和胫骨假体大小变化分别为42例(34.1%)和30例(24.4%)。在后路置换(PS)和十字保留(CR)设计中,差异都很明显。在PS和CR两种设计中,股骨假体在两侧之间的尺寸差异都大于胫骨假体。PS亚组和CR亚组股骨假体大小的变化百分比相似(分别为32.7%和33.3%)。然而,对于胫骨假体,PS设计的尺寸变化(24.5%)高于cr7设计(18.7%)。7.3%的患者在股骨和胫骨的两侧有2个或更多的大小变化。结论双侧全髋关节置换术患者股骨和胫骨假体的大小变化是常见的。对侧组件尺寸不应作为另一侧组件尺寸的决定因素。
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引用次数: 0
Custom-made 3D printed patient specific guides (PSG) improves component axial alignment in total knee arthroplasty (TKA) 定制3D打印患者专用导向器(PSG)改善全膝关节置换术(TKA)中部件轴向对齐
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2021.04.001
Chetan Sood , Saqib Yasin

Background

Usage of Patient Specific Instrumentation (PSI) or Patient Specific Guides (PSG) in TKA has evolved rapidly in the past decade. Restoration of Mechanical axis in TKA is vital to achieve good functional outcome and long term implant survival. We carried out a comparative study to assess the efficacy of PSG in achieving neutral axial alignment and its impact on early functional outcomes compared to Conventional Instrumentation (CI).

Methods

Patients eligible as per study design (n = 100) undergoing TKA were randomized and divided in two equal groups which were matched in baseline demographics and clinical profile. All the patients in the PSG group (n = 50) and conventional instrumentation (CI) group (n = 50) underwent TKA with same implant. Pre-operative CT scans done as per specified protocol to acquire image data for 3D printing PSG. Duration of surgery and post-operative Hip-Knee-Ankle (HKA) angles achieved in the two groups was compared. Post-operative functional outcomes were assessed using WOMAC scores.

Results

There was statistically significant difference in the mean post-operative axial alignment achieved between the two groups (p = 0.041). Outliers (180 ± 3 deg) of HKA angle were more in the CI Group (p = 0.007). There was no difference in functional outcomes between the two groups at one year. Duration of surgery was significantly less in PSG Group (p < 0.001).

Conclusion

3D printed PSG are superior in achieving neutral HKA axis as compared to CI in TKA. Better axial alignment of TKA components does not correlate with better patient reported functional outcomes. PSG use significantly reduces surgical time.

在过去的十年中,TKA中患者专用仪器(PSI)或患者专用指南(PSG)的使用发展迅速。机械轴的修复对于获得良好的功能结果和种植体的长期存活至关重要。我们进行了一项比较研究,以评估PSG在实现中性轴向对齐方面的功效,以及与传统仪器(CI)相比,PSG对早期功能结局的影响。方法根据研究设计(n = 100),将接受TKA的患者随机分为基线人口统计学和临床资料相匹配的两组。PSG组(n = 50)和常规器械(CI)组(n = 50)均采用相同种植体的TKA。术前按照指定方案进行CT扫描,获取3D打印PSG所需的图像数据。比较两组手术时间和术后髋关节-膝关节-踝关节(HKA)角度。术后功能结局采用WOMAC评分进行评估。结果两组患者术后平均轴位矫正率比较,差异有统计学意义(p = 0.041)。CI组HKA角度异常值(180±3°)较多(p = 0.007)。两组在一年后的功能结果没有差异。PSG组手术时间明显缩短(p <0.001)。结论3d打印PSG在TKA中实现中性HKA轴优于CI。TKA组件更好的轴向排列与更好的患者报告的功能结果无关。PSG的使用显著缩短了手术时间。
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引用次数: 1
Efficacy of combined use of intravenous and intra-articular versus intra-articular tranexemic acid in blood loss in primary total knee arthroplasty: A randomized controlled study 首次全膝关节置换术中联合使用静脉和关节内与关节内联合使用tranisic酸治疗失血的疗效:一项随机对照研究
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2020.12.006
Yeshi Dorji, Chandra M. Singh, Anil K. Mishra, Ajay Deep Sud

Purpose/objectives

This study was conducted to compare the efficacy of preoperative intravenous (IV) and intraoperative topical administration of tranexamic acid versus intraoperative topical administration of tranexamic acid along in reducing blood loss in primary total knee arthroplasty (TKA) subjects. The hypothesis of this study was the combined use of intravenous and Intra-articular injection of Tranexamic acid will be more efficacious than intra-articular administration alone in reducing blood loss in Primary Total Knee Arthroplasty.

Materials and method

A total of 31 subjects were selected and randomized into intervention and control group. The intervention group received both intravenous and intra articular tranexamic acid i.e. Trenexamic acid 1 gm IV injection 15 min before skin incision and Trenexamic acid 1 gm intra articular application intraoperatively after joint capsule closure. Subjects in the control group received only intra articular tranexamic acid i.e. Trenexamic acid 1 gm in 20 ml normal saline using intra articular application after joint capsule closure. Outcome measurements included postoperative surgical site drain output, drop in haemoglobin levels and transfusion rate. Ethics approval was taken from the Medical Research Unit, Armed Forces Medical College, Pune.

Results

The mean total blood (drain output) in the intervention group was 354.5 (±208.22) ml vs. 397.65 (±125.00) ml in the control group. T-test between the two groups on the volume drained post-operatively was not significant (p = 0.482). No subjects in the intervention group required post-operative blood transfusion but one subject from the control group required blood transfusion.

Conclusion

Combined use of intravenous and intraarticular injection tranexamic acid had lesser surgical site bleeding compared to only topical administration, however this was not statistically significant.

目的/目的本研究旨在比较术前静脉(IV)和术中局部给药氨甲环酸与术中局部给药氨甲环酸在减少原发性全膝关节置换术(TKA)患者出血量方面的疗效。本研究的假设是在原发性全膝关节置换术中,静脉和关节内联合注射氨甲环酸比关节内单独给药更有效地减少失血量。材料与方法选取31例受试者,随机分为干预组和对照组。干预组同时静脉注射氨甲环酸和关节内注射氨甲环酸,即切开皮肤前15 min静脉注射氨甲环酸1 gm,术中关节囊闭合后应用氨甲环酸1 gm。对照组患者在关节囊闭合后仅关节内应用氨甲环酸,即氨甲环酸1 gm加入生理盐水20 ml中。结果测量包括术后手术部位引流量、血红蛋白水平下降和输血率。道德规范得到了浦那武装部队医学院医学研究股的批准。结果干预组平均总血(排血量)为354.5(±208.22)ml,对照组为397.65(±125.00)ml。两组术后引流量的t检验差异无统计学意义(p = 0.482)。干预组无患者术后输血,对照组1例患者术后输血。结论静脉联合关节内注射氨甲环酸与单纯局部给药相比,手术部位出血较少,但差异无统计学意义。
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引用次数: 0
Cemented medial mobile-bearing Unicompartmental Knee Arthroplasty: Effects of compliance with current indications on functional outcomes and long-term survival rates 骨水泥内侧可移动单室膝关节置换术:符合当前适应症对功能结局和长期生存率的影响
Q4 Medicine Pub Date : 2021-04-01 DOI: 10.1016/j.jajs.2020.12.012
Luis Bernal-Fortich MD , Andrés Correa-Valderrama MD , Andres Echeverry-Vélez MD , Willy Stangl-Herrera MD , Erika Cantor MSc , Mónica Morales MSc , Julio César Palacio-Villegas

Background

Unicompartmental knee arthroplasty (UKA) is a surgical option for patients with medial compartment osteoarthritis (OA). The objective of this study was to describe the functional outcomes and long-term survival rates of cemented medial mobile-bearing UKA according to the compliance with current indications.

Methods

Retrospective study of 78 patients with medial unicompartimental knee OA treated with mobile-bearing cemented UKA (Oxford phase-III) between 2002 and 2012, with an average follow-up of 10.4 ± 3.4 years. Preoperative radiographs and clinical records were reviewed to assess the compliance with current indications (isolated medial compartment OA, flexion ≥ 90°, integrity of all ligaments, varus deformity<15°). Patients who met all criteria were classified with appropriate indication. The function was measured using the knee society score (KSS).

Results

Nineteen (24.3%) patients did not meet the current indications for UKA. Non-isolated OA of the medial compartment was the most frequent inappropriate indication (16 patients), followed by range of flexion<90° (2 patients) and lack of integrity of the ligaments (1 patient). A significant improvement was found on the KSS after surgery [preoperative KSS: 50.0 (Interquartile range-IQR: (35.0–60.0); postoperative KSS: 70.0 (IQR:60.0–70.0), p < 0.05]. Survival after 15 years of follow-up in cases without and with appropriate indication was 55.8% and 89.7%, respectively. A higher risk of revision surgery was found in cases with inappropriate indication (hazard ratio: 4.87, 95% Confidence Interval: 1.54–15.38, p:0.007).

Conclusion

When proper patient selection is carried out, cemented medial mobile-bearing UKA offers good functional outcomes with a survival rate of 89.7% at 15 years of follow-up.

背景:内腔室膝关节置换术(UKA)是治疗内侧腔室骨关节炎(OA)患者的一种手术选择。本研究的目的是根据当前适应症的依从性描述骨水泥内固定移动承重UKA的功能结局和长期生存率。方法回顾性研究2002 - 2012年间78例使用活动轴承骨水泥UKA治疗的单侧膝关节OA患者(Oxford iii期),平均随访时间10.4±3.4年。回顾术前x线片和临床记录,以评估当前适应症的依从性(孤立的内侧腔室OA,屈曲≥90°,所有韧带完整,内翻变形15°)。符合所有标准的患者进行适当的适应证分类。使用膝关节社会评分(KSS)测量功能。结果19例(24.3%)患者不符合目前UKA的适应症。非孤立性内侧筋膜室骨关节炎是最常见的不适当适应症(16例),其次是屈曲范围90°(2例)和韧带缺乏完整性(1例)。术后KSS有明显改善[术前KSS: 50.0(四分位数间距- iqr: 35.0-60.0);术后KSS: 70.0 (IQR:60.0 ~ 70.0), p <0.05]。15年随访后,无适应证和有适应证患者的生存率分别为55.8%和89.7%。适应症不合适的患者翻修手术的风险更高(风险比:4.87,95%可信区间:1.54 ~ 15.38,p:0.007)。结论当患者选择正确时,15年随访时,骨水泥移动承重UKA具有良好的功能预后,生存率为89.7%。
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引用次数: 0
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Journal of Arthroscopy and Joint Surgery
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