Midterm Survivorship and Patient Satisfaction of Robotic-Arm-Assisted Medial Unicompartmental Knee Arthroplasty: A Multicenter Study

The Journal of Arthroplasty
Laura J KleebladAndrew D Pearle

Abstract

Studies have showed improved accuracy of lower leg alignment, precise component position, and soft-tissue balance with robotic-assisted unicompartmental knee arthroplasty (UKA). No studies, however, have assessed the effect on midterm survivorship. Therefore, the purpose of this prospective, multicenter study was to determine midtem survivorship, modes of failure, and satisfaction of robotic-assisted medial UKA. A total of 473 consecutive patients (528 knees) underwent robotic-arm-assisted medial UKA surgery at 4 separate institutions between March 2009 and December 2011. All patients received a fixed-bearing, metal-backed onlay tibial component. Each patient was contacted at minimum 5-year follow-up and asked a series of questions to determine survival and satisfaction. Kaplan-Meier method was used to determine survivorship. Data were collected for 384 patients (432 knees) with a mean follow-up of 5.7 years (5.0-7.7). The follow-up rate was 81.2%. In total, 13 revisions were performed, of which 11 knees were converted to total knee arthroplasty and in 2 cases 1 UKA component was revised, resulting in 97% survivorship. The mean time to revision was 2.27 years. The most common failure mode was aseptic loosening (7/13). Fourteen ...Continue Reading

Citations

Jan 1, 2020·The Bone & Joint Journal·Joost A BurgerAndrew D Pearle
Jun 21, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Francesco ZambianchiFabio Catani
Feb 8, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Antonio KlasanSimon W Young
May 24, 2020·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Jiyan LinXiang Zhao
Dec 4, 2019·The Bone & Joint Journal·Fares S Haddad, S Horriat
May 12, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Guillaume MergenthalerSébastien Lustig
May 6, 2020·Current Reviews in Musculoskeletal Medicine·Paul L SousaBrian P Chalmers
Mar 28, 2019·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Konstantinos Dretakis, Vasilios G Igoumenou
Aug 2, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Francesco ZambianchiFabio Catani
Oct 28, 2020·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Jiaxiang GaoJianhao Lin
Jan 5, 2021·The Journal of the American Academy of Orthopaedic Surgeons·Ahmed SiddiqiNicolas S Piuzzi
Nov 18, 2020·The Journal of Arthroplasty·Michael J DeFranceMatthew W Squire
May 12, 2021·The Knee·Hannah Jia Hui NgWee James Liang Hao
Nov 16, 2019·The Journal of Knee Surgery·Austin F SmithArthur L Malkani
Jul 19, 2021·Archives of Orthopaedic and Trauma Surgery·Florent Bernard-de-VilleneuveSébastien Lustig
Nov 11, 2021·Archives of Orthopaedic and Trauma Surgery·Martin Roche

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