scholarly journals An Early Periprosthetic Fracture of a Cementless Oxford Unicompartmental Knee Arthroplasty: Risk Factors and Mitigation Strategies

2021 ◽  
Vol 11 (4) ◽  
Author(s):  
Li Zong Xian ◽  
Andrew Tan Hwee Chye
Keyword(s):  
Case Report ◽  
Knee Arthroplasty ◽  
Periprosthetic Fracture ◽  
Perioperative Complications ◽  
Survival Rates ◽  
Mitigation Strategies ◽  
Term Survival ◽  
Revision Total Knee Replacement ◽  
Total Knee

Introduction: The cementless Oxford partial knee arthroplasty is associated with low perioperative complications and good long-term survival rates. However, perioperative fractures remain a serious morbidity for patients. Case Report: This case report describes an early post-operative tibial periprosthetic fracture through the keel slot, which we believe may be contributed by the deep implant keel design and the presence of a narrow metaphysis in the Asian knee. The patient subsequently underwent a revision total knee replacement and fixation of the periprosthetic fracture. Conclusion: This paper discusses the ways to identify patients at high risk of developing periprosthetic fractures and to minimize such occurrences, including adopting a modified tibial preparation, doing precise saw cuts, and considering a cemented tibial implant. Keywords: Cementless, Oxford, unicompartmental, periprosthetic, keel.

scholarly journals Robot assisted versus Conventional Total Knee Arthroplasty: A prospective randomized controlled trial featuring long term follow-up

10.29007/cdct ◽  
2018 ◽  
Author(s):  
Eun-Kyoo Song ◽  
Jong-Keun Seon ◽  
Won-Gyun Lee
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Controlled Trial ◽  
Survival Rates ◽  
Robot Assisted ◽  
Term Survival ◽  
Prospective Randomized Controlled Trial ◽  
Long Term Follow Up ◽  
Total Knee

This study determined if robot assisted total knee arthroplasty (TKA) allows for more accurate alignment, better clinical outcome and long term survival rate compared with conventional TKA. 155 consecutive patients who underwent primary TKA were followed more than ten years. Robotic-assisted TKA appears to reduce the number of mechanical axis alignment outliers without any differences in clinical scores, complications and survival rates when compared to conventional manual techniques.

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 Long-term follow up of Navigation TKA using multi directional mobile bearing design

10.29007/3724 ◽  
2018 ◽  
Author(s):  
Eun-Kyoo Song ◽  
Jong-Keun Seon ◽  
Dong-Hyun Lee ◽  
Je-Hyoung Yeo
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Outcomes ◽  
Knee Arthroplasty ◽  
Survival Rates ◽  
Mobile Bearing ◽  
Long Term Follow Up ◽  
Total Knee ◽  
Bearing Design

Total knee arthroplasty using navigation system is known to be more effective than conventional methods in achieving more accurate bone resection and neutral alignment.1 Mobile bearing is also known to reduce wear and automatically correct rotational malalignment of the tibia but the long-term follow-up results of more than 10 years are extremely rare.2, 3 The purpose of this study is to investigate the results of clinical and radiologic long-term follow-up and complications of total knee arthroplasty using navigation and multi-directional mobile bearing.From 2003 to 2006, a total of 111 navigation TKAs using multi-directional mobile bearing design were carried out and reviewed retrospectively. TKAs were performed by two experienced surgeons at one institute. Of the 111 patients, 102 were women and 9 were men. The mean duration of follow-up was 11.4 ± 1.0 years (range, 10.1 to 14.08 years). Clinical outcomes were evaluated in terms of Knee Society Score, Hospital for Special Surgery score, Western Ontario and McMaster University (WOMAC) score, range of motion and complications. Long-term radiological outcomes and survival rates were evaluated at least 10 years.Average preoperative HSS score was 66.5 ± 9.8 and KSS pain and function score were 25.0 ± 11.8 and 44.5 ± 12.3, respectively. Scores improved to 94.1 ± 8.2, 46.6 ± 11.6 and 88.2 ± 14.6 at the last follow up, respectively. Mean preoperative WOMAC scores of 75.8 ± 16.5 improved to 13.8 ± 16.0 at last follow-up. Five knees required re-operation, two for liner breakage, one for liner wear, one for distal femoral fracture and one for infection. The estimated 10-year prosthesis survival rates for any reason and for prosthesis-related problems were 95.5% and 97.4% , respectively.TKAs using each techniques resulted in similar good clinical outcomes and postoperative leg alignments. Robotic and navigation TKA appeared to reduce the number of postoperative leg alignment outliers and revision rate compared to conventional TKA.

Metal Trays in Tibial Components of Knee Implants; Contact Stress and Deflection Behaviour

2001 ◽  
Author(s):  
Tim McGloughlin
Keyword(s):  
Molecular Weight ◽  
Total Knee Replacement ◽  
Wear Debris ◽  
Survival Rates ◽  
Wear Behaviour ◽  
Term Survival ◽  
Contact Conditions ◽  
Total Knee ◽  
Ultra High Molecular Weight

Abstract Wear behaviour of the Ultra High Molecular Weight Polyethylene (UHMWPE) insert in tibial components of total knee implants is believed to be influenced by the contact conditions occurring at the femoro-tibial interface. The wear debris which is generated in the vicinity of the implant is known to evoke undesirable effects and limits the long term survival rates of total knee replacement Mc Gloughlin et al [1].

scholarly journals Mid-to Long-Term Survival of Total Knee Arthroplasty in Hemophilic Arthropathy

2020 ◽  
Vol 9 (10) ◽  
pp. 3247
Author(s):  
Jung-Kwon Bae ◽  
Kang-Il Kim ◽  
Sang-Hak Lee ◽  
Myung-Chul Yoo
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Term Survival ◽  
Long Term Survival ◽  
Hemophilic Arthropathy ◽  
Prosthesis Survival ◽  
Total Knee ◽  
The Mean

While satisfactory results have been reported during short-to mid-term follow-up assessments of hemophilic patients who have undergone total knee arthroplasty (TKA), limited literature focusing on long-term survival following TKA exists to date. As part of this investigation, a consecutive series of 78 TKAs in 56 patients with hemophilic arthropathy was reviewed. The mean patient age at the time of operation was 38.7 years old and the mean length of follow up was 10.2 years. Clinical and radiologic outcomes, quality of life, complications, and long-term survivorship of TKA were evaluated. At the latest point of follow up, the average American Knee Society (AKS) knee and function scores had improved from 32.1 to 85.7 points and 41.5 to 83.3 points, respectively. Moreover, the average range of motion (ROM) was significantly increased from 64.2° preoperatively to 84.2° postoperatively. The physical and mental Short Form-36 results were also significantly improved at the latest point of follow up. Postoperative complications appeared in 12 knees (15.4%). The readmission rate in the 30 days after discharge was 6.4%. Revision TKA was performed in three knees for periprosthetic joint infection (n = 2 knees) and tibial component loosening (n = 1 knee). The Kaplan–Meier 10- and 13-year prosthesis survival rates were 97.1% and 93.2%, respectively. The current study suggests that the mid-to long-term results of TKA in patients with hemophilic arthropathy are favorable, with successful long-term prosthesis survival achievable in most cases.

scholarly journals Current state of total knee arthroplasty

2020 ◽  
Vol 63 (8) ◽  
pp. 452-461
Author(s):  
Jeung-Hwan Seo ◽  
Sang Hak Lee
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Computer Assisted ◽  
Term Survival ◽  
Patient’S Satisfaction ◽  
Current State ◽  
Cost Effective Treatment ◽  
Total Knee ◽  
End Stage

Total knee arthroplasty (TKA) is a successful and cost-effective treatment for end-stage degenerative arthritis. The aging of society and an increase in the prevalence of obesity has led to increases in the prevalence of arthritis and the incidence of TKA. Currently, the total number of procedures in Korea per year has reached 90,000. With the rapid growth, we need to know about the current state of TKA. The purpose of this review is to summarize the recent literature regarding TKA. The main indication for TKA is end-stage arthritis with severe pain, reduced function, and no response to conservative management. Metal on the polyethylene-bearing surface and cobalt alloy are used in most TKAs. Despite good clinical outcomes and long-term survival rates after TKA in many papers, 20% of patients are dissatisfied with the outcome of surgery. To improve the patient’s satisfaction, surgeons should understand factors affecting patient’s satisfaction, including patient’s expectations, age, and preoperative mental state. Navigation-assisted surgery and robotic surgery have been introduced in knee arthroplasty to achieve more precise and accurate alignment. There is some evidence to suggest that computer-assisted surgery reduces revision rates. However, clinical efficacy is also controversial, and a long-term follow-up study is required. The common complications of TKA include infection, polyethylene wear, loosening, stiffness, periprosthetic fracture, and thromboembolism. An understanding of the potential complications and pitfalls of TKA is essential for prevention.

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