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Technical Briefs

Investigation of an Early Intervention Tibial Component for Medial Osteoarthritis

[+] Author and Article Information
Miriam Chaudhary

Department of Orthopaedic Surgery,
NYU Hospital for Joint Diseases,
New York, NY;
Department of Chemical and Biological Sciences,
NYU-Poly, Brooklyn, NY

Peter S. Walker

Department of Orthopaedic Surgery,
NYU Hospital for Joint Diseases,
New York, NY;
Department of Mechanical and Aerospace Engineering,
NYU-Poly, Brooklyn, NY

Manuscript received March 15, 2013; final manuscript received April 25, 2013; published online June 5, 2013. Editor: Arthur G. Erdman.

J. Med. Devices 7(2), 020908 (Jun 05, 2013) (3 pages) Paper No: MED-13-1041; doi: 10.1115/1.4024335 History: Received March 15, 2013; Revised April 25, 2013

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References

Attar, F., Khaw, F., Kirk, L., and Gregg, P., 2008, “Survivorship Analysis at 15 Years of Cemented Press-Fit Condylar Total Knee Arthroplasty,” J. Arthroplasty, 23, pp. 344–349. [CrossRef] [PubMed]
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Huang, H. C., Liau, J. J., Huang, C. H., and Cheng, C. K., 2007, “Stress Analysis of the Anterior Tibial Post in Posterior Stabilized Knee Prostheses,” J. Ortho. Res., 10, pp. 442–449. [CrossRef]
Tandon, R., 1999, “Net Shaping of Co-Cr-Mo (F-75) Via Metal Injection Molding: Cobalt-Base Alloys for Biomedical Applications,” ASTM International 3–7.
Rapperport, D. J., Carter, D. R., and Schurman, D. J., 1984, “Contact Finite Element Stress Analysis of Porous Ingrowth Acetabular Cup Implantation, Ingrowth, and Loosening,” J. Ortho. Res., 5, pp. 548–561. [CrossRef]
Huiskes, R., Weinans, H., Grootenboer, H. J., Dalstra, M., Fudala, B., and Sloof, T. J., 1987, “Adaptive Bone-Remodeling Theory Applied to Prosthetic-Design Analysis,” J. Biomechanics, 20(11), pp. 1135–1150. [CrossRef]

Figures

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Fig. 1

(a) Four components analyzed: EI 2 mm, EI 3 mm, all-plastic UKA, metal-backed UKA. (b) Change in density and elastic modulus with resection depths ranging from 2 mm to 6 mm.

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Fig. 2

Stresses at the bone interface beneath EI and UKA components

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Fig. 3

Strains at the bone interface beneath EI and UKA components

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Fig. 4

Strain energy density in an intact proximal tibia and tibia models with an EI or UKA component

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