Adam E. Roy MD , Alexandre Barbieri Mestriner MD , Brielle Antonelli BS, PA-S , Jakob Ackermann MD , Antonia F. Chen MD, MBA , Jeffrey K. Lange MD
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Early Results of a Patient-Specific Total Knee Arthroplasty Implant Cast From a 3D-Printed Mold
Background
The second generation of a custom total knee arthroplasty (TKA) implant cast from a 3D-printed mold was introduced into the market in 2012. The purpose of this retrospective study was to investigate short- to mid-term survivorship and complication rates of this novel implant.
Methods
This study is a retrospective analysis of 314 TKA procedures (264 patients) performed by a single surgeon using a customized TKA from September 2012 to November 2015. Patient demographics, rate of implant revision, rate of reoperation for any reason, and rate of postoperative complications were recorded.
Results
At the time of index surgery, the mean patient age was 64.7 years, and the mean follow-up duration was 3 years. At the final follow-up, implant survivorship free from revision was 98.1%, and survivorship free from reoperation for any reason was 92.4%.
Conclusions
Our analysis revealed favorable short- to mid-term survivorship for a customized TKA implant. While the short- to mid-term outcomes for this implant are promising, future studies are required to assess long-term outcomes and durability.
期刊介绍：
Arthroplasty Today is a companion journal to the Journal of Arthroplasty. The journal Arthroplasty Today brings together the clinical and scientific foundations for joint replacement of the hip and knee in an open-access, online format. Arthroplasty Today solicits manuscripts of the highest quality from all areas of scientific endeavor that relate to joint replacement or the treatment of its complications, including those dealing with patient outcomes, economic and policy issues, prosthetic design, biomechanics, biomaterials, and biologic response to arthroplasty. The journal focuses on case reports. It is the purpose of Arthroplasty Today to present material to practicing orthopaedic surgeons that will keep them abreast of developments in the field, prove useful in the care of patients, and aid in understanding the scientific foundation of this subspecialty area of joint replacement. The international members of the Editorial Board provide a worldwide perspective for the journal''s area of interest. Their participation ensures that each issue of Arthroplasty Today provides the reader with timely, peer-reviewed articles of the highest quality.
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