Achieving functional alignment in total knee arthroplasty: early experience using a second-generation imageless semi-autonomous handheld robotic sculpting system

Purpose In order to minimize errors during achieving the targeted alignment of the total knee arthroplasty (TKA) components, robotic-assisted surgery has been introduced with the aim to help surgeons to improve implant survival, clinical outcomes, and patient satisfaction. The primary goal of this p...

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Bibliographic Details
Published in:International orthopaedics 2023-02, Vol.47 (2), p.585-593
Main Authors: Bollars, Peter, Meshram, Prashant, Al Thani, Saeed, Schotanus, Martijn G. M., Albelooshi, Ali
Format: Article
Language:English
Subjects:
Arthroplasty, Replacement, Knee - adverse effects
Humans
Knee Joint - surgery
Medicine
Medicine & Public Health
Original Paper
Orthopedics
Osteoarthritis, Knee
Retrospective Studies
Robotic Surgical Procedures - adverse effects
Robotics
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Summary:Purpose In order to minimize errors during achieving the targeted alignment of the total knee arthroplasty (TKA) components, robotic-assisted surgery has been introduced with the aim to help surgeons to improve implant survival, clinical outcomes, and patient satisfaction. The primary goal of this paper is to highlight surgical tips and tricks on how to achieve functional alignment (FA) through intra-operative boney mapping, numeric gap, and alignment data, using the next generation of imageless robotic surgical systems. Method This retrospective case-series contains planned and achieved data on the FA and joint gap data obtained from 526 patients captured and assessed with use of a semi-autonomous imageless handheld robotic sculpting systems. All patients were operated upon by two experienced TKA surgeons. Results The mean difference between planned and achieved alignment was 1.46° (≥ 7° varus group), 1.02° (
ISSN:0341-2695
1432-5195
DOI:10.1007/s00264-022-05649-x