Case Report ARTICLE
Development and Implantation of a Universal Talar Prosthesis
- 1University of Alberta, Canada
Talar avascular necrosis (AVN) can result in bone collapse with subsequent ankle and subtalar osteoarthritis ending in significant pain and disability. Custom talar body prostheses have been implanted with good results but these are difficult to design, costly and require extensive planning. In the past few years, we have investigated the feasibility of a universal talar replacement prosthesis through multiple studies. This report documents that development and the results from the first patient to receive a universal talar replacement prosthesis. A patient with bilateral talar AVN with collapse had implantation of two universal talar prostheses with final evaluations at 34 months (right) and 12 months (left) post implantation using visual analogue scale, range of motion, SF-36 questionnaire, and personal reflection. The patient had decreased pain, increase range of motion, improvement (or no change) on all domains of the SF-36 and expressed great appreciation for having the procedures done. This report demonstrates the effectiveness and feasibility of a universal talar prosthesis. Continued development of this type of implant can decrease costs, improve access and provide an acceptable alternative when a custom prosthesis is not possible.
Keywords: talar replacement, Avascular necrosis, talar prosthesis, universal talar replacement, synthetic bone 3
Received: 07 Sep 2019;
Accepted: 04 Nov 2019.
Copyright: © 2019 Bowes, Adeeb, Grosvenor, Beaupre and Jomha. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Prof. Nadr M. Jomha, University of Alberta, Edmonton, T6G 2R3, Alberta, Canada, email@example.com