Midterm results of a new personalized knee implant for total knee arthroplasty: implant survivorship and patient-reported outcome after five years’ follow-up

2021 ◽  
Author(s):  
Cristina Dauder Gallego ◽  
Irene Blanca Moreno Fenoll ◽  
José Luis Patiño Contreras ◽  
Francisco Javier Moreno Coronas ◽  
María del Carmen Torrejón de la Cal ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Reported Outcome ◽  
Midterm Results ◽  
Implant Survivorship ◽  
Patient Reported ◽  
Total Knee

Spinopelvic mismatch is associated with patient-reported outcome measures after total knee arthroplasty at a mean follow-up of 15 years

The Knee ◽  
2022 ◽  
Vol 34 ◽  
pp. 156-166
Author(s):  
Yoshinori Okamoto ◽  
Hitoshi Wakama ◽  
Tomohiro Okayoshi ◽  
Junya Matsuyama ◽  
Shuhei Otsuki ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Outcome Measures ◽  
Knee Arthroplasty ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Patient Reported ◽  
Total Knee

scholarly journals Outcome of knee arthroplasty in patients aged 65 years or less: a prospective study of 232 patients with 2-year follow-up

2018 ◽  
Vol 108 (4) ◽  
pp. 313-320 ◽  
Author(s):  
M. Niemeläinen ◽  
T. Moilanen ◽  
H. Huhtala ◽  
A. Eskelinen
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Real World ◽  
Outcome Measure ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Patient Reported Outcome Measure ◽  
Patient Reported ◽  
Total Knee

Background and Aims:Previous studies have reported lower implant survival rates, residual pain, and higher patient dissatisfaction rates following knee arthroplasty in younger knee arthroplasty patients. We aimed to assess the real-world effectiveness of knee arthroplasty in a prospective non-selected cohort of patients aged 65 years or less with 2-year follow-up.Material and Methods:In total, 250 patients (272 knees) aged 65 years or less were enrolled into this prospective cohort study. Patient-reported outcome measures were used to assess the outcome.Results:The mean Oxford Knee Score and all Knee Injury and Osteoarthritis Outcome Score subscales increased significantly (p < 0.001) from preoperative situation to the 2-year follow-up. Significant increase (p < 0.001) in physical activity was detected in High-Activity Arthroplasty Score and RAND-36 Physical Component Score (PCS). Pain was also significantly (p < 0.001) relieved during the follow-up. Total disappearance of pain was rare at 2 years. Patients with milder (Kellgren–Lawrence grade 2) osteoarthritis were less satisfied and reported poorer patient-reported outcome measure than those with advanced osteoarthritis (Kellgren–Lawrence grade 3–4). There was no difference in the outcome (any patient-reported outcome measure) between patients who underwent total knee arthroplasty and those who received unicondylar knee arthroplasty.Conclusion:We found that measured with a wide set of patient-reported outcome measures, both total knee arthroplasty and unicondylar knee arthroplasty resulted in significant pain relief, as well as improvement in physical performance and quality of life in patients aged 65 years or less. Real-world effectiveness of these procedures seems to be excellent. 15% of patients still had residual symptoms and were dissatisfied with the outcome at 2 years after the operation.

Kinematically Aligned Total Knee Arthroplasty Did Not Show Superior Patient-Reported Outcome Measures: An Updated Meta-analysis of Randomized Controlled Trials with at Least 2-Year Follow-up

2020 ◽  
Author(s):  
Shuhei Hiyama ◽  
Tsuneari Takahashi ◽  
Katsushi Takeshita
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Meta Analysis ◽  
Clinical Results ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Significant Difference ◽  
Patient Reported ◽  
Total Knee

AbstractKinematically aligned total knee arthroplasty (KATKA) was developed to improve the anatomical alignment of knee prostheses, assisting in restoring the native alignment of the knee and promoting physiological kinematics. Early clinical results were encouraging, showing better functional outcomes than with mechanically aligned total knee arthroplasty (MATKA). However, there have been concerns about implant survival, and follow-up at 10 years or more has not been reported. In addition, randomized controlled trials (RCTs) comparing KATKA with MATKA have reported inconsistent results. The current meta-analysis of RCTs with a minimum of 2 years of follow-up investigated the clinical and radiological differences between KATKA and MATKA. A systematic review of the English language literature resulted in the inclusion of four RCTs. The meta-analysis found no significant difference in any of the following parameters: postoperative range of motion for flexion (mean difference for KATKA − MATKA [MD], 1.7 degrees; 95% confidence interval [CI], −1.4 to 4.8 degrees; p = 0.29) and extension (MD, 0.10 degrees; 95% CI, −0.99 to 1.2 degrees; p = 0.86); Oxford Knee Score (MD, 0.10 points; 95% CI, −1.5 to 1.7 points; p = 0.90); Knee Society Score (MD, 1.6 points; 95% CI, −2.8 to 6.0 points; p = 0.49); and Knee Function Score (MD, 1.4 points; 95% CI, −4.9 to 7.8 points; p = 0.66). In addition, there was no significant difference between KATKA and MATKA in the rate of complications requiring reoperation or revision surgery (odds ratio, 1.01; 95% CI, 0.25–4.09; p = 0.99) or in the length of hospital stay (MD, 1.0 days; 95% CI, −0.2 to 2.2 days; p = 0.092). KATKA did not increase the number of patients with poor clinical results due to implant position, particularly for varus placement of the tibial component. In this meta-analysis based on four RCTs with a minimum of 2 years of follow-up, KATKA were only relevant to cruciate retaining TKA and could not be extrapolated to posterior stabilized TKA. Patient-reported outcome measures with KATKA were not superior to those with MATKA.

Satisfaction Rates Are Low following Revision Total Knee Arthroplasty in Asians Despite Improvements in Patient-Reported Outcome Measures

2019 ◽  
Vol 33 (10) ◽  
pp. 1041-1046
Author(s):  
Hamid Rahmatullah Bin Abd Razak ◽  
Jian Hui Merrill Lee ◽  
Shi Ming Tan ◽  
Hwei Chi Chong ◽  
Ngai Nung Lo ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Clinically Important Difference ◽  
Sf 36 ◽  
Patient Reported ◽  
Total Knee ◽  
Satisfaction Rates

AbstractWith the aging population in Asia and increase in total knee arthroplasty (TKA) utilization rates, the number of patients requiring revision TKA (rTKA) are expected to increase as well. The purpose of this study was to evaluate outcomes and satisfaction rates following rTKA in an Asian population that has unique cultural demands. Registry data of patients who underwent rTKA from 2006 to 2010 and had completed 5 years of follow-up were analyzed. Flexion range, Oxford Knee score (OKS), Knee Society score (KSS), the Short-Form 36 (SF-36), and satisfaction rates were assessed for improvement from preoperative values, as well as by the minimum clinically important difference (MCID) criterion. rTKA was performed in 163 patients. There were significant improvements seen at 2 years postoperatively and these were sustained up to 5 years. The minimal clinically important difference (MCID) criterion for KSS, OKS, and SF-36 physical component score (PCS) was met at 2 and 5 years postoperatively. The overall complication rate was 3.7% at a mean follow-up of 8.4 years. A total of 121 patients (74.2%) were satisfied at 5 years postoperatively. Within our cohort, rTKA results in significantly improved patient-reported outcome measures with a low complication rate of 3.7% at a minimum of 5-year follow-up. Despite these encouraging results, satisfaction rates remain low.

scholarly journals Outcomes of the rotating hinge knee in revision total knee arthroplasty with a median follow-up of 6.2 years

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Jake von Hintze ◽  
Mika Niemeläinen ◽  
Harri Sintonen ◽  
Jyrki Nieminen ◽  
Antti Eskelinen
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Survival Rate ◽  
Knee Arthroplasty ◽  
Revision Total Knee Arthroplasty ◽  
Patient Reported ◽  
Total Knee ◽  
Revision Tka

Abstract Background The purpose of this study was to determine the mid-term clinical, radiographic and health-related quality of life (HRQoL) outcomes and define the survival rate in patients who had undergone revision total knee arthroplasty (TKA) using the single rotating hinged knee (RHK) design. Methods Between January 2004 and December 2013, 125 revision TKAs were performed at our institution using the single RHK implant. We conducted both a retrospective analysis of prospectively collected outcome data of these patients and a prospective follow-up study of all 39 living patients (41 knees). The follow-up phase included an optional extra follow-up visit, PROM questionnaires, and plain radiographs. Results The ten-year Kaplan-Meier survival rate of the revision RHK knees was 81.7% (95% CI 71.9–91.6%) with re-revision for any reason as the endpoint. Overall, 15 knees (12% of the total) underwent re-revision surgery during the follow-up. The median follow-up was 6.2 years (range, 0–12.7 years) post-operatively for the baseline group. One mechanical hinge mechanism-related failure occurred without any history of trauma or infection. At the time of the final follow-up, the majority of patients evinced a fairly good clinical outcome measured with patient-reported outcome measures and none of the components were radiographically loose. Conclusion We found that in patients undergoing complex revision TKA, fairly good functional outcome and quality of life can be achieved using an RHK implant. Further, it seems that in this type of patient cohort, revision TKA using an RHK implant relieves pain more than it improves ability to function. The NexGen® RHK design can be regarded as a suitable option in complex revision TKA.

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