Coronal tibiofemoral subluxation is not an independent risk factor for total knee arthroplasty in patients with moderate to severe varus-osteoarthritis: data from the “Osteoarthritis Initiative”

2017 ◽  
Vol 137 (10) ◽  
pp. 1423-1428 ◽  
Author(s):  
Paul Schadler ◽  
Max Kasparek ◽  
Fritz Boettner ◽  
Mirco Sgroi ◽  
Martin Faschingbauer
Keyword(s):  
Total Knee Arthroplasty ◽  
Risk Factor ◽  
Knee Arthroplasty ◽  
Independent Risk Factor ◽  
Osteoarthritis Initiative ◽  
Total Knee ◽  
Tibiofemoral Subluxation

scholarly journals Sarcopenia is an Independent Risk Factor for Postoperative Blood Transfusion in Total Knee Arthroplasty: A Retrospective, Propensity Score-Matched Cohort Study

2022 ◽  
Author(s):  
Doohyun Hwang ◽  
Hyuk-Soo Han ◽  
Myung Chul Lee ◽  
Du Hyun Ro
Keyword(s):  
Skeletal Muscle ◽  
Total Knee Arthroplasty ◽  
Risk Factor ◽  
Cohort Study ◽  
Blood Transfusion ◽  
Propensity Score ◽  
Knee Arthroplasty ◽  
Retrospective Cohort ◽  
Independent Risk Factor ◽  
Total Knee

Abstract Background: Sarcopenia, an age-related loss of skeletal muscle mass and function, is correlated with adverse outcomes after some surgeries. This study examined the incidence and characteristics of sarcopenic patients undergoing primary total knee arthroplasty (TKA), and identified sarcopenia as an independent risk factor for postoperative TKA complications.Methods: A retrospective cohort study examined 452 patients who underwent TKA. The skeletal muscle index (SMI) was obtained via bioelectrical impedance analysis (BIA), along with demographics, the Charlson Comorbidity Index, and medication, laboratory and operative data for 2018–2021. Patients were categorized into non-sarcopenia (n = 417) and sarcopenia (n = 35) groups using the SMI cut-off suggested by the Asian Working Group for Sarcopenia 2019 (males, < 7.0 kg/m2; females, < 5.7 kg/m2). Three postoperative complications were analyzed: blood transfusion, delirium, and acute kidney injury (AKI). Baseline characteristics were propensity score-matched to address potential bias and confounding factors.Results: The incidence of sarcopenia in primary TKA was 7.7% (35/452). The sarcopenia group had a lower preoperative hemoglobin (12.18±1.20 vs. 13.04±1.73 g/dL, p=0.004) and total protein (6.73±0.42 vs. 7.06±0.44 mg/dL, p=0.001). Propensity scoring matching and logistic regression showed that more patients in the sarcopenia group received postoperative blood transfusions (OR = 6.60, 95% CI: 1.57–45.5, p=0.021); there was no significant difference in AKI or delirium. Univariate receiver operating characteristic curve analysis of the propensity-matched group, to determine the predictive value of SMI for postoperative transfusion, gave an AUC of 0.797 (0.633–0.96) and SMI cut-off of 5.6 kg/m2.Conclusions: Sarcopenia determined by BIA was an independent risk factor for postoperative transfusion in TKA. Multifrequency BIA can serve as a screening tool for sarcopenia. Orthopedic surgeons should be aware of this, as it could influence the decision-making process or treatment plan of patients with sarcopenia undergoing primary TKA.Level of evidence: III, retrospective cohort study

scholarly journals Surgical Case Order is an Independent Risk Factor for Postoperative Infection in Primary Total Knee Arthroplasty

2021 ◽  
Author(s):  
Dengying Wu ◽  
Chao Jia ◽  
Hongwei Lu ◽  
Shuoyi Zhou ◽  
Zheng wu ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Risk Factor ◽  
Knee Arthroplasty ◽  
Independent Risk Factor ◽  
Operative Time ◽  
Operating Time ◽  
Significant Risk ◽  
Surgical Case ◽  
Operative Outcomes ◽  
Total Knee

Abstract Background: Total knee arthroplasty is regarded as the most effective treatment for severe knee joint problems. Surgery case order influences operative outcomes according to previous studies. This study aims to evaluate the effect of surgical case order on operative outcomes for TKA.Methods: A retrospective study was conducted on 4,267 TKAs performed by three surgeons at our hospital from February 2008 to February 2018. Variables, such as surgical time, loss of blood, and hospitalization stay, were also recorded and analysed. Logistic regression was used to analyse every variable as a potential risk for a surgical site infection.Results: Of the 4267 cases in this cohort, 1531 TKAs were classified as first-round cases, 1194 TKAs were second-round cases, 913 TKAs were third-round cases, 490 TKAs were fourth-round cases, and 139 were fifth-round or later cases. The mean operating time was shorter in intermediate cases (P< 0.01). Perioperative adverse events were increased in later surgical cases (P< 0.01). Later case order (OR= 1.29 [95% CI: 1.17–1.56], P<0.01) was a significant risk factor for severe arthroplasty complications. The operative time and length of stay were increased for cases performed later in the day. However, blood loss is not statistically associated with case order. Conclusions: Surgical case order is an independent risk factor for surgical infection. Significantly increased operative time and longer LOS were noted for third-round or later TKA cases. Our results identify potentially modifiable risk factors contributing to infection rates in TKA, and cases operated on later in the day in the same room were more likely to have a higher infection risk.

Lymphedema: A Significant Risk Factor for Infection and Implant Failure After Total Knee Arthroplasty

2020 ◽  
Vol 28 (23) ◽  
pp. 996-1002 ◽  
Author(s):  
Joshua M. Kolz ◽  
William G. Rainer ◽  
Cody C. Wyles ◽  
Matthew T. Houdek ◽  
Kevin I. Perry ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Risk Factor ◽  
Knee Arthroplasty ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Implant Failure ◽  
Total Knee

Preoperative Hyponatremia Is Associated with Reoperation and Prolonged Length of Hospital Stay following Total Knee Arthroplasty

2018 ◽  
Vol 32 (04) ◽  
pp. 344-351 ◽  
Author(s):  
Matthew Abola ◽  
Joseph Tanenbaum ◽  
Thomas Bomberger ◽  
Derrick Knapik ◽  
Steven Fitzgerald ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Risk Factor ◽  
Hospital Stay ◽  
Knee Arthroplasty ◽  
Length Of Hospital Stay ◽  
Adverse Outcomes ◽  
Limited Information ◽  
Improvement Program ◽  
Prolonged Length ◽  
Total Knee

AbstractHyponatremia is a risk factor for adverse surgical outcomes, but limited information is available on the prognosis of hyponatremic patients who undergo total knee arthroplasty (TKA). The purpose of this investigation was to compare the incidence of major morbidity (MM), 30-day readmission, 30-day reoperation, and length of hospital stay (LOS) between normonatremic and hypontremic TKA patients.The American College of Surgeons National Surgical Quality Improvement Program database was used to identify all primary TKA procedures. Hyponatremia was defined as <135 mEq/L and normonatremia as 135 to 145 mEq/L; hypernatremic patients (>145 mEq/L) were excluded. Multivariable logistic regression was used to determine the association between hyponatremia and outcomes after adjusting for demographics and comorbidities. An α level of 0.002 was used and calculated using the Bonferroni correction. Our final analysis included 88,103 patients of which 3,763 were hyponatremic and 84,340 were normonatremic preoperatively. In our multivariable models, hyponatremic patients did not have significantly higher odds of experiencing an MM (odds ratio [OR]: 1.05; 99% confidence interval [CI] 0.93–1.19) or readmission (OR: 1.12; 99% CI: 1–1.24). However, patients with hyponatremia did experience significantly greater odds for reoperation (OR: 1.24; 99% CI: 1.05–1.46) and longer hospital stay (OR: 1.15; 99% CI: 1.09–1.21). We found that hyponatremic patients undergoing TKA had increased odds of reoperation and prolonged hospital stay. Preoperative hyponatremia may be a modifiable risk factor for adverse outcomes in patients undergoing TKA, and additional prospective studies are warranted to determine whether preoperative correction of hyponatremia can prevent complications.

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