alexa A Strategy to Optimize Recovery in Orthopedic Sports Injuries
ISSN: 1948-593X

Journal of Bioanalysis & Biomedicine
Open Access

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Research Article

A Strategy to Optimize Recovery in Orthopedic Sports Injuries

Michael P Sealy1,6, Ziye Liu2, Chao Li2, Yuebin Guo2, Ben White2, Mark Barkey4, Brian Jordon J2, Luke N Brewer4 and Dale Feldman3,5,6*

1Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, USA

2Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL, USA

3Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, USA

4Department of Aerospace Engineering and Mechanics, The University of Alabama, Tuscaloosa, AL, USA

5Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL, USA

6Surface Integrity LLC, Birmingham, AL 35203, USA

*Corresponding Author:
Dale Feldman
Department of Biomedical Engineering
University of Alabama at Birmingham
Birmingham, AL, USA
Tel: 205 9348426
E-mail: [email protected]

Received date: June 03, 2017; Accepted date: June 15, 2017; Published date: June 22, 2017

Citation: Sealy MP, Liu Z, Li C, Guo Y, White B, et al. (2017) A Strategy to Optimize Recovery in Orthopedic Sports Injuries. J Bioanal Biomed 9:144-151. doi: 10.4172/1948-593X.1000169

Copyright: © 2017 Sealy MP, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



An important goal for treatment of sports injuries is to have as short a recovery time as possible. The critical problem with current orthopedic implants is that they are designed to be permanent and have a high complication rate (15%) that often requires removal and replacement with a second surgery; and subsequently a second rehabilitation cycle. This study was designed to test the feasibility of having a device that could provide the needed mechanical properties, while promoting healing, for a specified amount of time and then degrade away, to shorten the recovery time. The specific strategy was to create a surface layer on a degradable metal alloy with a controllable degradation rate. Previous studies have shown the feasibility of using surface treatments to alter the surface integrity (i.e., topography, microhardness, and residual stress) leading to increased fatigue strength and a decreased degradation rate. This study was an extension of these previous studies to look at the changes in surface integrity and mechanical properties initially as well as the degradation over time for two surface treatments (shot peening and burnishing). Although the treatments improved initial properties and the burnishing treatment slowed degradation rate, the faster degradation of the base material in vitro (compared to previous studies) probably reduced the overall impact. Therefore although the study helped support the feasibility of this approach by showing the ability of the surface treatment to modify surface integrity, initial mechanical properties, and degradation rate; the degradation rate of the base material used needs to be slower and/or the surface treatment needs to create a bigger change in the degradation rate. Further it ultimately needs to be shown that the surface treatment can produce a material that will allow orthopedic devices to meet the required clinical design constraints in vivo.


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