A comparison of SanatMetal Sanat Swing and Zimmer NexGen® total knee implants: 10-year postoperative follow-up results
Bence Abonyi1,2, Karoly Pap1,2, Tamas Gal1,2, Gabor Vasarhelyi1, Ivan Udvarhelyi1, Laszlo Hangody1,2
1Department of Orthopedics and Traumatology, Uzsoki Hospital, Budapest, Hungary
2Department of Traumatology, Semmelweis University, Budapest, Hungary
Keywords: Cemented, functional outcome, knee prosthesis, NexGen, Sanat Swing total knee replacement
Objectives: In this study, we present our 10-year postoperative follow-up results of Sanat Swing® and NexGen® total knee implants.
Patients and methods: A total of 189 patients (93 males, 96 females; mean age: 68 years; range, 48 to 86 years) who underwent total knee replacement between January 2008 and September 2010 were retrospectively analyzed. A total of 105 patients (Group A) were implanted a cemented Sanat Swing knee prosthesis and 84 patients (Group B) were implanted a cemented NexGen knee prosthesis. Operation time, range of motion (ROM), pain level, Knee Society Score (KSS), distance of painless walking, and the ability to climb stairs were evaluated between the groups.
Results: The mean follow-up was 10.8 (range, 9.8 to 12.3) years. No significant difference was observed in the survival of the prostheses, ROM, pain level, KSS, walking distance, and in the ability to climb stairs between the two groups at 10 years. With an experienced team, the operation time was about 4 to 5 min shorter in the Sanat Swing implantation group. In selected cases, Sanat Swing was superior to the NexGen system; however, there was no statistically significant difference. Complication rates were also low and comparable between both groups.
Conclusion: Based on the 10 years of follow-up evaluation, Sanat Swing total knee replacement system seems to yield comparable clinical results with the NexGen. Experiences with the operative technique and comparative evaluation, the Sanat Swing system is a safe and reliable alternative for total knee replacement, providing a user-friendly operative technique and shorter operation time.
Citation: Abonyi B, Pap K, Gal T, Vasarhelyi G, Udvarhelyi I, Hangody L. A comparison of SanatMetal Sanat Swing and Zimmer NexGen® total knee implants: 10-year postoperative follow-up results. Jt Dis Relat Surg 2021;32(1):10-16.
One of the authors (L. H.) was involved in the development of the SanatMetal Sanat Swing Total Knee Replacement System. All other authors declared no conflicts of interest with respect to the authorship and/or publication of this article.
The authors received no financial support for the research and/or authorship of this article.