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Investigating the primary stability of the transversal support tibial plateau concept to retain both cruciate ligaments during total knee arthroplasty

  • Purpose: The important roles of the anterior cruciate ligament regarding knee stability, physiologic kinematics, and proprioception are unquestioned. Thus, various efforts have been made to retain the ACL during total knee arthroplasty (TKA). Neither of the existing solutions to this problem, i.e. bicruciate retaining prostheses and implantation of two unicondylar prostheses, has been successful because of concept-specific problems as well as general difficulties with implant fixation. The new transversal support tibial plateau concept is a prosthesis of two individual joint surfaces reinforced beneath the articular line by joint surface supports and buttressed by a single transversal support. This configuration, which enables retention of both cruciate ligaments, should provide good bone fixation and ensure long-term alignment of the individual joint surfaces. Methods: In the current study, four prototypes based on this novel concept were developed and the resulting primary stability was analyzed using adapted load testing. The test set-up, with the model-loading of specially prepared Sawbones® and a sinusoidal oscillating load transmission with 25 000 cycles over 10 increasing load levels, achieved subsidence, which enabled comparison of the four different model variants regarding primary stability in view of bone anchoring. Results: The model variant (TSmobile) that allowed transverse glide of the joint surface supports along the transversal support revealed the largest subsidence. Conclusions: A rigid attachment of the joint surface supports of the transversal support tibial plateau thus appears to offer increased primary stability regarding bone anchoring.

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Metadaten
Author:Andrej M. Nowakowski, Melanie Stangel, Thomas M. Grupp, Victor Valderrabano
URN:urn:nbn:de:bvb:m347-opus-3027
DOI:https://doi.org/10.5301/JABFM.2012.9259
Parent Title (English):Journal of Applied Biomaterials & Functional Materials
Publisher:Sage Publications
Place of publication:Thousand Oaks
Editor:Silvia Farè, Maria Pia Pedeferri, Teodoro Valente
Document Type:Article
Language:English
Date of Publication (online):2022/01/25
Year of first Publication:2012
Publishing Institution:Hochschule für angewandte Wissenschaften München
Release Date:2022/01/25
GND Keyword:KniegelenkprotheseGND
Volume:10
Issue:2
Page Number:9
First Page:1
Last Page:9
Note:
Sonderdruck aus: Journal of Applied Biomaterials & Functional Materials, Vol. 10, Issue 2, Seiten 1-9
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit
Illustrations:Illustration/en
Illustrations:grafische Darstellung/en
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
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