Re-learning curve for conventional total knee arthroplasty following 30 consecutive computer-assisted total knee arthroplasties

Nicholson, Luke; Trofa, David P.; Smith, Eric L.

doi:10.3109/10929088.2012.762044

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…8,37,38 Arthroplasty researchers have focused recent efforts into characterizing the learning period for the anterior approach to hip 8,37,38 or the use of robotic assistance in hips 39,40 and knees. 41,42 However, there is still a dearth of investigation into the learning experience of surgeons performing TSA, and it is still not clear whether a learning period has been adequately described. 26 While Kempton et al 26 determined there to be a 40-case learning period in RSA, the study was limited by the analysis of a single surgeon who previously had considerable experience in TSA.…”

Section: Mean Annual Case Volume and Operative Durationmentioning

confidence: 99%

Operative duration-based learning period analysis for reverse and total shoulder arthroplasty: A multicenter study

et al. 2018

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Background: A surgical learning period may be quantified after which operative duration is significantly reduced. We sought to retrospectively quantify and compare surgeon's learning experience for total shoulder arthroplasty and reverse shoulder arthroplasty. Methods: We reviewed 2055 shoulder arthroplasty cases from 2011 to 2015 for four early-career and four later-career fellowship-trained shoulder surgeons from four institutions. We plotted consecutive case number versus operative time for each surgeon separately for total shoulder arthroplasty or reverse shoulder arthroplasty. Two-step regression approach was used to determine a plateau point or end of the learning period. Additionally, the mean annual volume of reverse shoulder arthroplasty and total shoulder arthroplasty for each surgeon was plotted against mean surgery duration. Early-and later-career surgeons were compared with regression analysis. Results: Early-career surgeons demonstrated a significant decrease in operative time with increasing annual case volume for reverse shoulder arthroplasty (p ¼ 0.01; m ¼ À1.1) and total shoulder arthroplasty (p ¼ 0.02; m ¼ À0.8). Three of four early-career surgeons reached a plateau point for either reverse shoulder arthroplasty or total shoulder arthroplasty between 12 and 86 cases. Conclusion: For only early-career surgeons, higher case volume yields decreased operative duration, with improvement more pronounced for reverse shoulder arthroplasty compared to total shoulder arthroplasty. Though the learning period varies, it may be fewer than 90 cases.

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Section: Mean Annual Case Volume and Operative Durationmentioning

confidence: 99%

Operative duration-based learning period analysis for reverse and total shoulder arthroplasty: A multicenter study

et al. 2018

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“…20 In 2013, Nicholson et al raised an interesting issue regarding the "re-learning curve for conventional total knee arthroplasty following 30 consecutive computer assisted total knee arthroplasties". 21 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 ). More recently, Love and Kinninmonth looked at the training benefits of computer navigated total knee arthroplasty.…”

Section: Accuracy and Precision In Surgical Techniquesmentioning

confidence: 99%