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.
Issue Section:
Research Papers
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