40th anniversary of a publication presenting an implant that is still in use: “ENDO model”

Keywords: Total knee arthroplasty, hinge, rotating hinge, story of knee replacement, ENDO model

Abstract

The year 2021 marks the 40th anniversary of the original publication describing the “Endo-model intracondylar rotational” implant, the evolution of the previous St Georg design, now providing two-degree-of-freedom motion and reducing stress on the cementbone interface. A unique condition is that the publication is not reported in bibliometric studies, although its elective indication still exists after four decades. A work deserves the qualification of “classic” not only for the volume of citations but fundamentallyfor the confidence that the application of its content inspires in the long term. Currently all the leading international companies in the implant industry have included in their catalogs their own rotating hinge implants. The scale of comparative constriction is a dilemma and thus a topic for discussion. Currently, the matter has been solved applying inertial sensors technology: the rotating hinge provides less constriction than the condylar constriction implant.

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Author Biography

Carlos María Autorino, Hospital Universitario Austral, Buenos Aires, Argentina
Head of Service of Orthopedics and Traumatology,  Hospital Universitario Austral, Buenos Aires, Argentina

References

Rang M. The story of Orthopaedics. Philadelphia: W. B. Saunders; 2000, cap. 20.

Engelbrecht E, Nieder E, Strickle E, Keller A. [Intracondylar knee joint prosthesis with rotation capacity - Endo

model]. Chirurg 1981;52(6):368-75. [En alemán] PMID: 7249853

Nieder E. [Sled prosthesis, rotating knee and hinge prosthesis: St. Georg model and ENDO-model. Differential

therapy in primary knee joint arthroplasty]. Orthopäde 1991;20(3):170-80. [En alemán] PMID: 1876398.

Engelbrecht E, Nieder E, Klüber D. Ten to twenty years of knee arthroplasty at the Endo-Klinik: A report on the

long-term follow-up of the St. Georg hinge and the medium-term follow-up of the rotating knee ENDO Model. En: Niwa S, Yoshino S, Kurosaka M, Shino K, Yamamoto S. (eds.) Reconstruction of the knee joint. Tokyo: Springer; 1997:186. https://doi.org/10.1007/978-4-431-68464-0_25

Plutat J, Friesecke C, Klüber D. Scharnierendoprothese Endo- Modell®. Modell mit Zukunft? Erfahrungen und

Ergebnisse nach 20 jähriger Anwendung. Orthopäde 2000;29(Suppl 1):56-8. https://doi.org/10.1007/pl00003688

EPRD (Endoprothesenregister Deutschland) German Arthroplasty Registry Annual Report 2019, page 22.

Deutschen Gesellschaft für Orthopädie und und Orthopädische Chirurgie.

León-Román VE, García-Mato D, López-Torres II, Vaquero-Martín FJ, Calvo-Haro JA, Pascau J, et al. The knee

prosthesis constraint dilemma: Biomechanical comparison between varus-valgus constrained implants and rotating hinge prosthesis. A cadaver study. J Orthop Res 2020;39(7):1‐7. https://doi.org/10.1002/jor.24844

Seminario “Artroplastia de rodilla” (3ra parte). Director: Carlos M. Autorino. YouTube. 18 de mayo 2020. Canal

SWIPRO. Disponible en: https://www.youtube.com/watch?v=0xydIkJV75w

Holzer LA, Holzer G. The 50 highest cited papers in hip and knee arthroplasty. J Arthroplasty 2014;29(3):453-7.

https://doi.org/10.1016/j.arth.2014.03.017

Eom SH, Bamne AB. Letter to the Editor. The 50 highest cited papers in hip and knee arthroplasty. J Arthroplasty 2014;29(9):1877. https://doi.org/10.1016/j.arth.2014.03.018

Eom SH, Bamne AB, Chowdhry M, Chae IS, Kim TK. Bibliometric analysis of orthopedic literature on total knee

arthroplasty in asian countries: a 10-year analysis. Knee Surg Relat Res 2015;27(3):149-55. https://doi.org/10.5792/ksrr.2015.27.3.149

Piuzzi NS, Sultan AA, Gatta J, Ng M, Cantrell WA, Khlopas A, et al. Top 100 most-cited clinical studies of hip and

knee arthroplasty: the foundation of practice. Orthopedics 2019;42(2):e151-e161. https://doi.org/10.3928/01477447-20190211-05

Zargaran D, Zargaran A, Lobo S, Shah Z. Knee surgery: trends and the 50 most cited articles. Orthop Rev (Padua) 2019;11(4):8322. https://doi.org/10.4081/or.2019.8322

Rodríguez-Merchán EC. Total knee arthroplasty using hinge joints: indications and results. EFORT Open Rev

;4(4):121-32. https://doi.org/10.1302/2058-5241.4.180056

Published
2021-12-16
How to Cite
Autorino, C. M. (2021). 40th anniversary of a publication presenting an implant that is still in use: “ENDO model”. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 86(6), 862-866. https://doi.org/10.15417/issn.1852-7434.2021.86.6.1377
Section
Nota técnica