Does Assessment with a Single Postoperative Radiograph Predict Long-Term Success of Total Knee Arthroplasty?

2018 ◽  
Vol 100 (6) ◽  
pp. e38
Author(s):  
James Toshio Ninomiya
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Radiograph ◽  
Total Knee

Isolated Liner Revision for Total Knee Arthroplasty Instability: A Road That Should Remain Less Taken

2020 ◽  
Author(s):  
Jason D. Tegethoff ◽  
Rafael Walker-Santiago ◽  
William M. Ralston ◽  
James A. Keeney
Keyword(s):  
Total Knee Arthroplasty ◽  
Femoral Component ◽  
Knee Arthroplasty ◽  
Primary Total Knee Arthroplasty ◽  
P Value ◽  
Surgical Morbidity ◽  
Exact Test ◽  
Total Knee ◽  
Component Revision

AbstractIsolated polyethylene liner exchange (IPLE) is infrequently selected as a treatment approach for patients with primary total knee arthroplasty (TKA) prosthetic joint instability. Potential advantages of less immediate surgical morbidity, faster recovery, and lower procedural cost need to be measured against reoperation and re-revision risk. Few published studies have directly compared IPLE with combined tibial and femoral component revision to treat patients with primary TKA instability. After obtaining institutional review board (IRB) approval, we performed a retrospective comparison of 20 patients treated with IPLE and 126 patients treated with tibial and femoral component revisions at a single institution between 2011 and 2018. Patient demographic characteristics, medical comorbidities, time to initial revision TKA, and reoperation (90 days, <2 years, and >2 years) were assessed using paired Student's t-test or Fisher's exact test with a p-value <0.01 used to determine significance. Patients undergoing IPLE were more likely to undergo reoperation (60.0 vs. 17.5%, p = 0.001), component revision surgery (45.0 vs. 8.7%, p = 0.002), and component revision within 2 years (30.0 vs. 1.6%, p < 0.0001). Differences in 90-day reoperation (p = 0.14) and revision >2 years (p = 0.19) were not significant. Reoperation for instability (30.0 vs. 4.0%, p < 0.001) and infection (20.0 vs. 1.6%, p < 0.01) were both higher in the IPLE group. IPLE does not provide consistent benefits for patients undergoing TKA revision for instability. Considerations for lower immediate postoperative morbidity and cost need to be carefully measured against long-term consequences of reoperation, delayed component revision, and increased long-term costs of multiple surgical procedures. This is a level III, case–control study.

Varus alignment of the tibial component up to seven degrees is not associated with poor long-term outcomes in a neutrally aligned total knee arthroplasty

2021 ◽  
Author(s):  
Francisco Antonio Miralles-Muñoz ◽  
Marta Rubio-Morales ◽  
Laiz Bello-Tejada ◽  
Santiago González-Parreño ◽  
Alejandro Lizaur-Utrilla ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Tibial Component ◽  
Varus Alignment ◽  
Long Term Outcomes ◽  
Total Knee

scholarly journals Long-term survival and radiological results of the Duracon™ total knee arthroplasty

2013 ◽  
Vol 38 (4) ◽  
pp. 747-752 ◽  
Author(s):  
Matthias Bachmann ◽  
Lilianna Bolliger ◽  
Thomas Ilchmann ◽  
Martin Clauss
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Term Survival ◽  
Long Term Survival ◽  
Radiological Results ◽  
Total Knee

scholarly journals Titanium-Nitride Coating Does Not Result in a Better Clinical Outcome Compared to Conventional Cobalt-Chromium Total Knee Arthroplasty after a Long-Term Follow-Up: A Propensity Score Matching Analysis

Coatings ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 442 ◽  
Author(s):  
Georg Hauer ◽  
Lukas Leitner ◽  
Marc C. Ackerl ◽  
Sebastian Klim ◽  
Ines Vielgut ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Propensity Score ◽  
Knee Arthroplasty ◽  
Cobalt Chromium ◽  
Tin Coating ◽  
Long Term Follow Up ◽  
Total Knee ◽  
Cocr Alloy

Background: The impact of titanium nitride (TiN) coating on implant components is controversial. TiN coating is proposed as having superior biomechanical properties compared to conventional cobalt-chromium (CoCr) alloy. This study compared long-term clinical data as well as meteoro-sensitivity in patients who underwent total knee arthroplasty (TKA), with either CoCr alloy or TiN coating. Methods: In this retrospective observational study, the clinically approved cemented “low contact stress” (LCS) TKA with conventional CoCr coating, was compared to un-cemented TiN-coated “advanced coated system” (ACS) TKA. Propensity score matching identified comparable patients based on their characteristics in a one-to-one ratio using the nearest-neighbor method. The final cohort comprised 260 knees in each cohort, with a mean follow-up of 10.1 ± 1.0 years for ACS patients and 14.9 ± 3.0 years for the LCS group. Physical examinations, meteoro-sensitivity, and knee scoring were assessed. Results: The clinical and functional Knee Society Score (KSS) (82.6 vs. 70.8; p < 0.001 and 61.9 vs. 71.1; p = 0.011), the postoperative Visual Analogue Scale (VAS) (2.9 vs. 1.4; p = 0.002), and the postoperative Tegner Score (2.6 vs. 2.2; p = 0.001) showed significant intergroup differences. The postoperative Western Ontario & McMaster Universities Osteoarthritis Index (WOMAC) was similar (79.9 vs. 81.3; p = 0.453) between groups. Meteoro-sensitivity of the artificial joint was significantly more prevalent in the ACS patient cohort (56% vs. 23%; p < 0.001). Conclusion: This study suggests that TiN coating does not provide improved clinical outcomes in this patient cohort after a long-term follow-up. Interestingly, sensitivity to weather changes were more correlated with un-cemented ACS implants.

scholarly journals Long-Term Postoperative Total Knee Arthroplasty Flexion Scores in Relation to Body Mass Index

2020 ◽  
Author(s):  
Matthew A. Siegel ◽  
Michael J. Patetta ◽  
Angie M. Fuentes ◽  
Armaan S. Haleem ◽  
Craig W. Forsthoefel ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Total Knee Arthroplasty ◽  
Body Mass ◽  
Knee Arthroplasty ◽  
Statistical Significance ◽  
P Value ◽  
Preoperative Body Mass Index ◽  
Total Knee

AbstractKnee range of motion (ROM) is an important postoperative measure of total knee arthroplasty (TKA). There is conflicting literature whether patients who are obese have worse absolute ROM outcomes than patients who are not obese. This study analyzed whether preoperative body mass index (BMI) influences knee ROM after patients' primary TKA. A retrospective investigation was performed on patients, who underwent primary TKA at an academic institution, by one of three fellowship-trained adult reconstruction surgeons. Patients were stratified according to their preoperative BMI into nonobese (BMI < 30.0 kg/m2) and obese (BMI ≥ 30.0 kg/m2) classifications. Passive ROM was assessed preoperatively as well as postoperatively at patients' most recent follow-up visit that was greater than 2 years. Mann–Whitney U tests were performed to determine statistical significance at p-value <0.05 for ROM outcomes. No statistically significant differences were observed when ROM in the nonobese group was compared with ROM in the obese group both preoperatively (105.73 ± 11.58 vs. 104.14 ± 13.58 degrees, p-value = 0.417) and postoperatively (105.83 ± 14.19 vs. 104.49 ± 13.52 degrees, p-value = 0.777). Mean follow-up time for all patients was 4.49 ± 1.92 years. In conclusion, long-term postoperative ROM outcomes were similar between patients who were nonobese and patients who were obese.

Long-term outcomes following total hip and total knee arthroplasty in patients with Paget's disease of bone (PDB) – A national study

The Surgeon ◽  
2020 ◽  
Vol 18 (6) ◽  
pp. 335-343
Author(s):  
Navnit Makaram ◽  
Louisa Woods ◽  
Nicholas Beattie ◽  
Simon B. Roberts ◽  
Gavin J. Macpherson
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Paget’S Disease ◽  
Paget's Disease ◽  
National Study ◽  
Paget's Disease Of Bone ◽  
Long Term Outcomes ◽  
Total Hip ◽  
Total Knee
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