While total hip arthroplasty (THA) is a common orthopedic procedure for treatment of hip arthritis, current techniques demonstrate poor implant alignment accuracy and precision, which is critical to the replacement's long-term survivorship. Patient-specific instruments to guide bone preparation and implantation could improve accuracy, thereby improving replacement survivorship. A single cadaver was CT (computer tomography) scanned to extract the 3D bone geometry, from which the operating surgeon planned a THA. Patient-specific guides were designed, 3D printed, and used in the cadaveric THA procedure. Postprocedural CT data were used to compare measured implant positioning versus the preprocedural template. Implanted component accuracy ranged from 1 deg–12 deg.
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March 2015
Research-Article
Patient-Specific Guides for Total Hip Arthroplasty: A Paired Acetabular and Femoral Implantation Approach
Jacob Stegman,
Jacob Stegman
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
e-mail: stegmajo@mail.uc.edu
Environmental Engineering,
College of Engineering and Applied Science,
University of Cincinnati
,Engineering Research Center—601
,Cincinnati, OH 45221-0012
e-mail: stegmajo@mail.uc.edu
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Chris Casstevens,
Chris Casstevens
Department of Orthopaedic Surgery,
e-mail: cassteec@ucmail.uc.edu
University of Cincinnati
,231 Albert Sabin Way
,ML 0212
,Cincinnati, OH 45267-0212
e-mail: cassteec@ucmail.uc.edu
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Todd Kelley,
Todd Kelley
Department of Orthopaedic Surgery,
e-mail: kelleyto@ucmail.uc.edu
University of Cincinnati
,231 Albert Sabin Way
,ML 0212
,Cincinnati, OH 45267-0212
e-mail: kelleyto@ucmail.uc.edu
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Vasile Nistor
Vasile Nistor
Mem. ASME
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
e-mail: nistorve@ucmail.uc.edu
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
University of Cincinnati
,Engineering Research Center—601
,Cincinnati, OH 45221-0012
e-mail: nistorve@ucmail.uc.edu
Search for other works by this author on:
Jacob Stegman
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
e-mail: stegmajo@mail.uc.edu
Environmental Engineering,
College of Engineering and Applied Science,
University of Cincinnati
,Engineering Research Center—601
,Cincinnati, OH 45221-0012
e-mail: stegmajo@mail.uc.edu
Chris Casstevens
Department of Orthopaedic Surgery,
e-mail: cassteec@ucmail.uc.edu
University of Cincinnati
,231 Albert Sabin Way
,ML 0212
,Cincinnati, OH 45267-0212
e-mail: cassteec@ucmail.uc.edu
Todd Kelley
Department of Orthopaedic Surgery,
e-mail: kelleyto@ucmail.uc.edu
University of Cincinnati
,231 Albert Sabin Way
,ML 0212
,Cincinnati, OH 45267-0212
e-mail: kelleyto@ucmail.uc.edu
Vasile Nistor
Mem. ASME
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
e-mail: nistorve@ucmail.uc.edu
Department of Biomedical, Chemical, and
Environmental Engineering,
College of Engineering and Applied Science,
University of Cincinnati
,Engineering Research Center—601
,Cincinnati, OH 45221-0012
e-mail: nistorve@ucmail.uc.edu
Manuscript received June 27, 2014; final manuscript received October 13, 2014; published online November 14, 2014. Assoc. Editor: Rita M. Patterson.
J. Med. Devices. Mar 2015, 9(1): 011006 (7 pages)
Published Online: March 1, 2015
Article history
Received:
June 27, 2014
Revision Received:
October 13, 2014
Online:
November 14, 2014
Citation
Stegman, J., Casstevens, C., Kelley, T., and Nistor, V. (March 1, 2015). "Patient-Specific Guides for Total Hip Arthroplasty: A Paired Acetabular and Femoral Implantation Approach." ASME. J. Med. Devices. March 2015; 9(1): 011006. https://doi.org/10.1115/1.4028945
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