scholarly journals Cones and sleeves present good survival and clinical outcome in revision total knee arthroplasty: a meta-analysis

2021 ◽  
Author(s):  
Laura Theresa Fischer ◽  
Markus Heinecke ◽  
Eric Röhner ◽  
Peter Schlattmann ◽  
Georg Matziolis
Keyword(s):  
Aseptic Loosening ◽  
Meta Analysis ◽  
Fixation Method ◽  
Good Survival ◽  
Complication Rates ◽  
Long Term Follow Up ◽  
Total Knee ◽  
Short And Long Term

Abstract Purpose The fixation of revision total knee arthroplasties (rTKA) tends to be difficult, leading to a reduction in implant survival. One option for achieving a more stable anchorage is to use metaphyseal cones and sleeves. The objective of the present paper is to provide a current comparative meta-analysis on survival and clinical results of cones vs. sleeves, with a differentiation between the short- and long-term outcome. Methods A search of the literature was conducted systematically to include original papers from 2010 to June 2021. The following parameters were taken into account: revision for aseptic loosening, revision for any reason, periprosthetic joint infections (PJI), KSS as well as KSFS. Studies with a mean follow-up of at least 60 months were defined to be long-term follow-up studies (LT). All other studies were included in the short-term (ST) study analysis. A pooled incidence was used as a summary statistic using a random intercept logistic regression model. Results The present meta-analysis included 43 publications with 3008 rTKA. Of these, 23 publications with 1911 cases were allocated to the sleeve group (SG) and 20 papers with 1097 cases to the cone group (CG). CG showed overall numerically higher complication rates in short- and long-term follow-up, compared with SG. Aseptic loosening occurred at a rate of 0.4% in SG (LT) and 4.1% in CG (LT) (p = 0.09). Periprosthetic joint infection (PJI) was more frequent in the cone group (7% in ST and 11.7% in LT) than in the sleeve group (3.4% in ST and 4.9% in LT, p = 0.02 both). The total revision rate was 5.5% in SG (LT) and 14.4% in CG (LT) (p = 0.12). The clinical scores were also comparable between the two groups. Hinged prothesis were used more frequent in the cone group (ST p < 0.001; LT p = 0.10), whereas CC type protheses were used more frequently in the sleeve group (ST p < 0.001; LT p < 0.11). Conclusions This meta-analysis takes into account the longest follow-up periods covered to date. Both cones and sleeves represent a reliable fixation method in the case of severe bone loss in rTKA, although the higher rate of PJI after cone fixation remains a source of concern. A metaphyseal fixation of hinged implants should be taken into account. Level of evidence II (meta-analysis).

scholarly journals Total Knee Arthroplasty in the 21st century: Why Do They Fail? A Fifteen-Year Analysis of 11, 135 Knees

2017 ◽  
Vol 5 (5_suppl5) ◽  
pp. 2325967117S0020
Author(s):  
Simon W Young ◽  
Chuan Kong Koh ◽  
Saiprasad Ravi ◽  
Mark Zhu ◽  
Kelly G Vince
Keyword(s):  
Total Knee Arthroplasty ◽  
New Zealand ◽  
Aseptic Loosening ◽  
Knee Arthroplasty ◽  
Joint Infection ◽  
Tertiary Referral ◽  
Long Term Follow Up ◽  
Total Knee

Introduction and Aims: As national total knee arthroplasty (TKA) registries evolve, there is an increasing trend towards publication of hospital and surgeon-level outcome data, with the goal of stimulating efforts to optimise the results of TKA. Such efforts first require understanding of the current mechanisms of TKA failure. Previous reports on revision TKA from tertiary referral centres lack data on the overall denominator, thus the relative importance of each failure mechanism leading to TKA revision over long term follow up remains unclear. The aim of this study was to analyse reasons for revision following primary TKA, and assess their relative frequencies over long-term follow-up. Methodology: 11,134 primary TKA performed between 2000-2015 at one of three tertiary referral hospitals were identified. ‘Failure’ was defined as patients undergoing subsequent revision surgery involving change of of one or more components or reoperation for deep periprosthetic joint infection (PJI). Patients were identified from a combination of the New Zealand National Joint Registry and individual search of patient records and clinical coding (ICD-9 and ICD-10). All relevant clinical records, radiographs, and lab results were obtained from all New Zealand hospitals to identify the primary reason for revision according to a standardised protocol. Results: A total of 357 (3.2%) failures over the 15 year period were identified. Of these, 36% were revised within one year and 56% were revised within 2 years of primary TKA. Periprosthetic joint infection (PJI) encompassed 48% of all reasons for revision, followed by aseptic loosening (15%), secondary patella resurfacing (14%), tibio-femoral instability (9%), stiffness (5%), polyethylene wear (2.5%), periprosthetic fracture (2.3%), patella maltracking (1.9%) and extensor mechanism discontinuity (0.9%). In the first 5 years following primary TKA, the most common reason for revision was PJI (52%), from 5-10 years PJI and aseptic loosening (35% each), and from 10-15 years aseptic loosening (41%). Conclusion: In this large cohort of patients with comprehensive follow up, PJI was the dominant reason for failure particularly in the first 10 years. Aseptic loosening becomes more important after 10 years follow up. Efforts to improve outcomes following primary TKA should focus on these areas, particularly prevention of PJI.

Retrospective analysis of intracranial aneurysms after flow diverter treatment including color-coded imaging (syngo iFlow) as a predictor of aneurysm occlusion

2021 ◽  
pp. 159101992110240
Author(s):  
Andreas Simgen ◽  
Christine Mayer ◽  
Michael Kettner ◽  
Ruben Mühl-Benninghaus ◽  
Wolfgang Reith ◽  
...  
Keyword(s):  
Cerebral Aneurysms ◽  
Flow Diverter ◽  
Complication Rates ◽  
Long Term Follow Up ◽  
Aneurysm Growth ◽  
Short And Long Term ◽  
Aneurysm Occlusion ◽  
Unruptured Cerebral Aneurysms

Purpose Flow Diverters (FD) have immensely extended the treatment of cerebral aneurysms in the past years. Complete aneurysm occlusion is a process that often takes a certain amount of time and is usually difficult to predict. Our aim was to investigate different syngo iFlow parameters in order to predict aneurysm occlusion. Methods Between 2014 and 2018 patients with unruptured cerebral aneurysms treated with a FD were reviewed. Aneurysm occlusion and complication rates have been assessed. In addition, various quantitative criteria were assessed using syngo iFlow before, after the intervention, and after short and long-term digital subtraction angiography (DSA). Results A total of 66 patients hosting 66 cerebral aneurysms were included in this study. 87.9% (n = 58) aneurysms in the anterior and 12.1% (n = 8) in the posterior circulation were treated. Adequate aneurysm occlusion at long-term follow-up (19.05 ± 15.1 months) was achieved in 90.9% (n = 60). Adequately occluded aneurysm revealed a significantly greater peak intensity delay (PI-D, p = 0.008) and intensity decrease ratio (ID-R, p < 0.001) compared to insufficiently occluded aneurysms. Increased intra-aneurysmal contrast agent intensity (>100%) after FD implantation resulted in an ID-R < 1, which was associated with aneurysm growth during follow-up DSA. Retreatment with another FD due to foreshortening and/or aneurysm growth was performed in 10.6% (n = 7). Overall morbidity and mortality rates were 1.5% (n = 1) and 0%. Conclusion The applied syngo iFlow parameters were found to be useful in predicting adequate aneurysm occlusion and foresee aneurysm growth, which might indicate the implantation of another FD.

Abstract 1998: Short- and Long-Term Effects of Abciximab in Patients Undergoing Primary Stenting for Acute Myocardial Infarction: Meta-Analysis of Randomized Trials

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Sujethra Vasu ◽  
Gregg W Stone ◽  
David L Brown
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Randomized Trials ◽  
No Reduction ◽  
Meta Analysis ◽  
Long Term Follow Up ◽  
Primary Stenting ◽  
Short And Long Term

Background: Both short- and long-term benefits of abciximab therapy in primary angioplasty for acute myocardial infarction (AMI) have been reported. However, primary stenting is the preferred treatment of AMI and conflicting data exists on the effect of abciximab therapy on outcomes following primary stent treatment of AMI. We therefore performed a meta-analysis of all randomized trials of abciximab in primary stenting for AMI for which there was short-term (30-day) and long-term (≥ 1 year) follow-up. Methods: We searched the MEDLINE and Cochrane databases using the following key words: stent, acute myocardial infarction, abciximab and randomized trial. Four studies (ISAR-2, ADMIRAL, CADILLAC and ACE) were included in this analysis. The incidence of the individual end points of death, reinfarction and target vessel revascularization (TVR) at 30 days and at long-term follow-up was extracted. Follow-up data was available at 1 year for ACE and CADILLAC, at 3 years for ADMIRAL and 5 years for ISAR-2. A random effects model was used to calculate the combined odds ratio (OR) of reinfarction, TVR and mortality associated with the use of abciximab. Results: The 4 trials enrolled 2137 patients of whom 1074 were randomized to abciximab and 1063 to placebo. Long-term follow up was available for 2107 patients, 1064 in the abciximab group and 1043 in the control group. At 30 days, abciximab resulted in a significant reduction in the odds of TVR (OR 0.45, 95% CI, 0.27–0.75, P=0.003) and a non-significant reduction in the odds of reinfarction (OR 0.43, 95% CI, 0.18–1.0, P=0.06) but no reduction in 30-day mortality (OR 0.78, 95% CI, 0.47–1.2, P=0.34). During long-term follow up, abciximab treatment resulted in a non-significant reduction in the risk of TVR (OR 0.77, 95% CI 0.58–1.0, P=0.06) but no reduction in reinfarction (OR 0.58, 95% CI, 0.3–1.1, P=0.12) or mortality (OR 0.90, 95% CI, 0.48–1.6, P=0.74). Conclusions: Abciximab resulted in a significant reduction in TVR at 30 days that diminished over time. We were unable to demonstrate a significant reduction in reinfarction or mortality at 30 days or at 1–5 years. These results suggest the need for an appropriately powered clinical trial to define the role of abciximab during primary stenting for AMI.

Exercise interventions in lateral elbow tendinopathy have better outcomes than passive interventions, but the effects are small: a systematic review and meta-analysis of 2123 subjects in 30 trials

2020 ◽  
pp. bjsports-2020-102525
Author(s):  
Stefanos Karanasios ◽  
Vasileios Korakakis ◽  
Rod Whiteley ◽  
Ioannis Vasilogeorgis ◽  
Sarah Woodbridge ◽  
...  
Keyword(s):  
Systematic Review ◽  
Meta Analysis ◽  
Risk Of Bias ◽  
Short Term ◽  
Lateral Elbow ◽  
Long Term Follow Up ◽  
Wait And See ◽  
Lateral Elbow Tendinopathy

ObjectiveTo evaluate the effectiveness of exercise compared with other conservative interventions in the management of lateral elbow tendinopathy (LET) on pain and function.DesignSystematic review and meta-analysis.MethodsWe used the Cochrane risk-of-bias tool 2 for randomised controlled trials (RCTs) to assess risk of bias and the Grading of Recommendations Assessment, Development and Evaluation methodology to grade the certainty of evidence. Self-perceived improvement, pain intensity, pain-free grip strength (PFGS) and elbow disability were used as primary outcome measures.Eligibility criteriaRCTs assessing the effectiveness of exercise alone or as an additive intervention compared with passive interventions, wait-and-see or injections in patients with LET.Results30 RCTs (2123 participants, 5 comparator interventions) were identified. Exercise outperformed (low certainty) corticosteroid injections in all outcomes at all time points except short-term pain reduction. Clinically significant differences were found in PFGS at short-term (mean difference (MD): 12.15, (95% CI) 1.69 to 22.6), mid-term (MD: 22.45, 95% CI 3.63 to 41.3) and long-term follow-up (MD: 18, 95% CI 11.17 to 24.84). Statistically significant differences (very low certainty) for exercise compared with wait-and-see were found only in self-perceived improvement at short-term, pain reduction and elbow disability at short-term and long-term follow-up. Substantial heterogeneity in descriptions of equipment, load, duration and frequency of exercise programmes were evident.ConclusionsLow and very low certainty evidence suggests exercise is effective compared with passive interventions with or without invasive treatment in LET, but the effect is small.PROSPERO registration numberCRD42018082703.

Strut remodeling with hypercompliant balloon: A new approach to Y stent-assisted coil embolization in the treatment of complex wide-neck bifurcation aneurysms

2020 ◽  
pp. 159101992098433
Author(s):  
Ali Burak Binboga ◽  
Mehmet Onay ◽  
Cetin Murat Altay
Keyword(s):  
Coil Embolization ◽  
Complication Rates ◽  
Thromboembolic Complications ◽  
New Approach ◽  
Long Term Follow Up ◽  
Safety Effectiveness ◽  
Wide Neck

Background The objective of this study was to present the long-term safety and effectiveness of strand remodelling with a hypercompliant balloon. Methods Patients with complex wide-neck bifurcation aneurysms (WNBAs) who underwent strand remodelling with a hypercompliant balloon via Y-stent-assisted coil embolization (Y-SACE) between September 2016 and January 2020 were included in the study. The feasibility, safety, effectiveness, and complication rates of the strand remodelling technique were investigated. Results A total of 12 patients (6 females, 6 males) were included in this study. Significant expansion was obtained in the intersection zone after remodelling. No regression was observed in the expansion rates during follow-up. There was no additional morbidity or mortality. No delayed thromboembolic complications occurred in our patients during long-term follow-up. Conclusions Performing strand remodelling to reduce thromboembolic complications triggered by structural faults caused by the Y-stent configuration is feasible, safe, and effective. This new approach can aid in the prevention of thromboembolic complications in Y-SACE.

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