Re-learning curve for conventional total knee arthroplasty following 30 consecutive computer-assisted total knee arthroplasties. (May 2013)

• Record Type: Journal Article
• Authors: Nicholson, Luke T.; Trofa, David; Smith, Eric
• Is Part Of: Computer aided surgery. Volume 18:Number 3/4(2013:May)
• Page Start: 63
• Page End: 67
• Publication Date: 2013-05
• Subjects: Computer-assisted surgery -- Periodicals; Imaging systems in medicine -- Periodicals; Surgery, Operative -- Computer simulation -- Periodicals; Surgical technology -- Periodicals; Medical technology -- Periodicals; 617.90285
• DOI: 10.3109/10929088.2012.762044
• Languages: English
• ISSNs: 1092-9088

Abstract

<abstract> <title> <x xml:space="preserve">Abstract</x> </title> <p>A learning curve for returning to conventional total knee arthroplasty (TKA) after using computer-assisted (CAS) TKA has not yet been established. In this study, the postoperative mechanical axes of the first 30 consecutive CAS TKAs performed by a single surgeon were compared to his subsequent 120 conventionally performed TKAs. A "re-learning curve" of 30 conventional TKAs was necessary to attain an average postoperative mechanical axis statistically indistinguishable from the average CAS mechanical axis (1.99°). This is a trend of which surgeons should be aware when converting from CAS TKA to conventional TKA. As a secondary goal, the authors identify the first clinical parameter, preoperative deviation from neutral mechanical axis, that may potentially serve as a guide for the selective use of CAS in TKA.</p> </abstract>