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Case Reports in Orthopedics
Volume 2012 (2012), Article ID 297326, 6 pages
doi:10.1155/2012/297326
Knee Osteoarthritis Treatment with the KineSpring Knee Implant System: A Report of Two Cases
1Brisbane Orthopedic and Sports Medicine Center, Level 5, 259 Wickham Terrace, Brisbane, QLD 4000, Australia
2Miller Scientific Consulting, 26 Portobello Road, Arden, NC 28704, USA
3The Jon Block Group, 2210 Jackson Street, Suite 401, San Francisco, CA 94115, USA
Received 25 October 2012; Accepted 20 November 2012
Academic Editors: E. R. Ahlmann and A. Jawahar
Copyright © 2012 David A. Hayes et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Osteoarthritis (OA) is a leading cause of disability in middle-aged and older adults with the prevalence expected to increase by 40% by 2025. This dramatic projected increase in OA reflects, in large part, the alarming obesity epidemic. Indeed, it is now well understood that abnormal loading across the knee joint due to malalignment and/or excessive weight gain is responsible for accelerating OA progression. Consequently, there is a therapeutic need for alternative knee OA treatments that directly address joint overload to fill the gap between ineffective conservative care and invasive joint-modifying surgical procedures. We describe two cases that presented with bilateral knee OA resistant to conservative treatments, each with one knee previously and unsuccessfully treated with high tibial osteotomy to improve alignment and the contralateral knee successfully treated with a joint-preserving, load-absorbing implant (KineSpring Knee Implant System).