scholarly journals The Impact of Surgeon Volume and Training Status on Implant Alignment in Total Knee Arthroplasty

2019 ◽  
Vol 101 (19) ◽  
pp. 1713-1723 ◽  
Author(s):  
Gregory S. Kazarian ◽  
Charles M. Lawrie ◽  
Toby N. Barrack ◽  
Matthew J. Donaldson ◽  
Gary M. Miller ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Surgeon Volume ◽  
Training Status ◽  
Total Knee ◽  
Implant Alignment ◽  
The Impact ◽  
And Training

scholarly journals Higher body mass index is associated with larger postoperative improvement in patient-reported outcomes following total knee arthroplasty

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
K Giesinger ◽  
JM Giesinger ◽  
DF Hamilton ◽  
J Rechsteiner ◽  
A Ladurner
Keyword(s):  
Body Mass Index ◽  
Total Knee Arthroplasty ◽  
Pain Relief ◽  
Body Mass ◽  
Knee Arthroplasty ◽  
Normal Weight ◽  
World Health ◽  
Obese Patients ◽  
Total Knee ◽  
The Impact

Abstract Background Total knee arthroplasty is known to successfully alleviate pain and improve function in endstage knee osteoarthritis. However, there is some controversy with regard to the influence of obesity on clinical benefits after TKA. The aim of this study was to investigate the impact of body mass index (BMI) on improvement in pain, function and general health status following total knee arthroplasty (TKA). Methods A single-centre retrospective analysis of primary TKAs performed between 2006 and 2016 was performed. Data were collected preoperatively and 12-month postoperatively using WOMAC score and EQ-5D. Longitudinal score change was compared across the BMI categories identified by the World Health Organization. Results Data from 1565 patients [mean age 69.1, 62.2% women] were accessed. Weight distribution was: 21.2% BMI < 25.0 kg/m2, 36.9% BMI 25.0–29.9 kg/m2, 27.0% BMI 30.0–34.9 kg/m2, 10.2% BMI 35.0–39.9 kg/m2, and 4.6% BMI ≥ 40.0 kg/m2. All outcome measures improved between preoperative and 12-month follow-up (p < 0.001). In pairwise comparisons against normal weight patients, patients with class I-II obesity showed larger improvement on the WOMAC function and total score. For WOMAC pain improvements were larger for all three obesity classes. Conclusions Post-operative improvement in joint-specific outcomes was larger in obese patients compared to normal weight patients. These findings suggest that obese patients may have the greatest benefits from TKA with regard to function and pain relief one year post-op. Well balanced treatment decisions should fully account for both: Higher benefits in terms of pain relief and function as well as increased potential risks and complications. Trial registration This trial has been registered with the ethics committee of Eastern Switzerland (EKOS; Project-ID: EKOS 2020–00,879)

The Impact of Gastric Bypass Surgery Compared to Total Knee Arthroplasty on Knee Symptoms

2018 ◽  
Vol 04 (02) ◽  
Author(s):  
Hafiz Kassam ◽  
Allan Okrainec ◽  
Timothy Jackson ◽  
Michael G Zyweil ◽  
Anthony V Perruccio ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Gastric Bypass ◽  
Knee Arthroplasty ◽  
Bypass Surgery ◽  
Gastric Bypass Surgery ◽  
Total Knee ◽  
The Impact

Bone ingrowth in total knee arthroplasty: The impact of HA-coatings and the relation with mechanical stability

1998 ◽  
Vol 31 ◽  
pp. 26
Author(s):  
L. Labey ◽  
H. Van Campenhout ◽  
J. Vander Sloten ◽  
R. Van Audekercke ◽  
G. Van der Perre ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Mechanical Stability ◽  
Bone Ingrowth ◽  
Total Knee ◽  
The Impact

Effect of Gait on Patellofemoral Mechanics

2008 ◽  
Author(s):  
Jeffrey E. Bischoff ◽  
Justin S. Hertzler
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Clinical Studies ◽  
Patellofemoral Joint ◽  
Knee Kinematics ◽  
Component Design ◽  
Total Knee ◽  
The Impact ◽  
Reconstructed Knee

Computational modeling of the reconstructed knee is an important tool in designing components for maximum functionality and life. Utilization of boundary conditions consistent with in vivo gait loading in such models enables predictions of knee kinematics and polyethylene damage [1–4], which can then be used to optimize component design. Several recent clinical studies have focused on complications associated with the patellofemoral joint [5–6], highlighting the need to better understand the mechanics of this compartment of total knee arthroplasty (TKA). This study utilizes a computational model to characterize the impact of gait loading on the mechanics of the patella in TKA.

The impact of residual varus alignment following total knee arthroplasty on patient outcome scores in a constitutional varus population

The Knee ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. 1278-1282 ◽  
Author(s):  
Brent A. Lanting ◽  
Harley A. Williams ◽  
Nicholas F. Matlovich ◽  
Pieter-Jan. Vandekerckhove ◽  
Matthew G. Teeter ◽  
...  
Keyword(s):  
Patient Outcome ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Varus Alignment ◽  
Outcome Scores ◽  
Total Knee ◽  
The Impact ◽  
Constitutional Varus

scholarly journals The Impact of Pre-emptive Large Dose of Methylprednisolone Combined With Gabapentin on Pain Treatment and Convalescence After Total Knee Arthroplasty in Elderly. A Randomized Control Study

2021 ◽  
Author(s):  
Henryk Liszka ◽  
Małgorzata Zając ◽  
Artur Gądek
Keyword(s):  
Total Knee Arthroplasty ◽  
Single Dose ◽  
Knee Arthroplasty ◽  
Opioid Analgesic ◽  
Control Group ◽  
Study Group ◽  
Intensity Level ◽  
Old Patients ◽  
Total Knee ◽  
The Impact

Abstract Background The aim of the study was to assess whether administration of gabapentin and methylprednisolone as “pre-emptive analgesia” in a group of patients above 65 years of age would be effective in complex pain management therapy following total knee arthroplasty (TKA). Material and Methods One hundred seventy, above 65 years old patients were qualified for the study, and 10 patients were excluded due to clinical situation. One hundred sixty patients were double-blind randomized into two groups: the study (eighty patients) and controls (eighty patients). The study group received as “pre-emptive” analgesia a single dose of 300 mg oral gabapentin and 125 mg intravenous methylprednisolone, while the others placebo. Perioperatively, all the patients received opioid and nonopioid analgesic agents calculated for 1 kg of body weight. We measured the levels of inflammatory markers (leukocytosis, C-reactive protein - CRP), pain intensity level at rest (numerical rating scale - NRS), the life parameters and all complications. Results Following administration of gabapentin and methylprednisolone as “pre-emptive” analgesia CRP values being lower on all postoperative days ( 1, 2 days - p<0,00001, 3 day – p=000538), leukocytosis on day 2 (p<0,0086) and 3 (p<0,00042), the NRS score at rest 6, 12 (p<0,000001), 18 (p<0,00004) and 24 (p=0,005569) hours postoperatively . Methylprednisolone with gabapentin significantly decreased the dose of parenteral opioid preparations (p=0,000006). The duration time of analgesia was significantly longer in study group (p<0,000001). No infectious complications were observed; in the control group, one patient manifested transient ischaemic attack (TIA). Conclusion The use of gabapentin and methylprednisolone at a single dose decreases the level of postoperative pain on the day of surgery, the dose of opioid analgesic preparations, the level of inflammatory parameters without infectious processes.

scholarly journals The impact of gastric bypass surgery compared to total knee arthroplasty for osteoarthritis on knee symptoms

2014 ◽  
Vol 22 ◽  
pp. S405
Author(s):  
M.G. Zywiel ◽  
A. Okrainec ◽  
T. Penner ◽  
H. Kassam ◽  
A. Perruccio ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Gastric Bypass ◽  
Knee Arthroplasty ◽  
Bypass Surgery ◽  
Gastric Bypass Surgery ◽  
Total Knee ◽  
The Impact

The Impact of Analgesic Modality on Early Ambulation Following Total Knee Arthroplasty

2013 ◽  
Vol 38 (4) ◽  
pp. 334-339 ◽  
Author(s):  
Anahi Perlas ◽  
Kyle R. Kirkham ◽  
Rajeev Billing ◽  
Cyrus Tse ◽  
Richard Brull ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Early Ambulation ◽  
Total Knee ◽  
The Impact

The Impact of Medical Comorbidities on Primary Total Knee Arthroplasty Reimbursements

2018 ◽  
Vol 32 (06) ◽  
pp. 475-482 ◽  
Author(s):  
Karim G. Sabeh ◽  
Samuel Rosas ◽  
Leonard T. Buller ◽  
Andrew A. Freiberg ◽  
Cynthia L. Emory ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Perioperative Complications ◽  
Primary Total Knee Arthroplasty ◽  
Cost Of Care ◽  
Chronic Obstructive ◽  
Level Of Evidence ◽  
Medical Comorbidities ◽  
Total Knee ◽  
The Impact

AbstractMedical comorbidities have been shown to cause an increase in peri-and postoperative complications following total knee arthroplasty (TKA). However, the increase in cost associated with these complications has yet to be determined. Factors that influence cost have been of great interest particularly after the initiation of bundled payment initiatives. In this study, we present and quantify the influence of common medical comorbidities on the cost of care in patients undergoing primary TKA. A retrospective level of evidence III study was performed using the PearlDiver supercomputer to identify patients who underwent primary TKA between 2007 and 2015. Patients were stratified by medical comorbidities and compared using analysis of variance for reimbursements for the day of surgery and over 90 days postoperatively. A cohort of 137,073 US patients was identified as having undergone primary TKA between 2007 and 2015. The mean entire episode-of-care reimbursement was $23,701 (range: $21,294–26,299; standard deviation [SD] $2,611). The highest reimbursements were seen in patients with chronic obstructive pulmonary disease (mean $26,299; SD $3,030), hepatitis C (mean $25,662; SD $2,766), morbid obesity (mean $25,450; SD $2,154), chronic kidney disease (mean $25,131, $3,361), and cirrhosis (mean $24,890; SD $2,547). Medical comorbidities significantly impact reimbursements, and therefore cost, after primary TKA. Comprehensive preoperative optimization for patients with medical comorbidities undergoing TKA is highly recommended and may reduce perioperative complications, improve patient outcome, and ultimately reduce cost.

Impact of Biological Sex on Complications, Lengths of Stay, Readmission Rates, and Costs of Care Following Primary Total Knee Arthroplasty

2021 ◽  
Author(s):  
Samuel J. Swiggett ◽  
Angelo Mannino ◽  
Rushabh M. Vakharia ◽  
Joseph O. Ehiorobo ◽  
Martin W. Roche ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Primary Total Knee Arthroplasty ◽  
Medical Complications ◽  
Administrative Claims ◽  
Readmission Rates ◽  
Costs Of Care ◽  
Lengths Of Stay ◽  
Total Knee ◽  
The Impact

AbstractThe impact of gender on total knee arthroplasty (TKA) postoperative complications, readmission rates, and costs of care has not been often evaluated. Therefore, the purpose of this study was to investigate which sex had higher rates of: (1) medical complications; (2) implant complications; (3) lengths of stay (LOSs); (4) readmission rates; and (5) costs after TKA. A query was performed using an administrative claims database from January 1, 2005, to March 31, 2015. Patients who had TKAs were identified using International Classification of Diseases, Ninth Revision and Current Procedural Terminology codes. Males and females were filtered separately and matched according to age and various medical comorbidities leading to 1,590,626 patients equally distributed. Primary outcomes analyzed included 90-day medical complications, LOSs, 90-day readmission rates, in addition to day of surgery and total global 90-day episode of care costs. Pearson's chi-square analyses were used to compare medical complications and readmission rates. Welch's t-tests were used to test for significance in matching outcomes and costs. A p-value of less than 0.01 was considered statistically significant. Males had a smaller risk of complications than women (1.35 vs. 1.40%, p < 0.006) and higher rates of implant-related complications (2.28 vs. 1.99%, p < 0.0001). Mean LOSs were lower for males: 3.16 versus 3.34 days (p < 0.0001). The 90-day readmission rates were higher in men (9.67 vs. 8.12%, p < 0.0001). This study demonstrated that males undergoing primary TKA have lower medical complications and shorter LOSs then their female counterparts. However, males have higher implant-related complications, readmission rates, and costs of care.

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