Aims The purpose of this multicentre observational study was to investigate the association between intraoperative component positioning and soft-tissue balancing on short-term clinical outcomes in patients undergoing robotic-arm assisted unicompartmental knee arthroplasty (UKA). Patients and Methods Between 2013 and 2016, 363 patients (395 knees) underwent robotic-arm assisted UKAs at two centres. Pre- and postoperatively, patients were administered Knee Injury and Osteoarthritis Score (KOOS) and Forgotten Joint Score-12 (FJS-12). Results were stratified as “good” and “bad” if KOOS/FJS-12 were more than or equal to 80. Intraoperative, post-implantation robotic data relative to CT-based components placement were collected and classified. Postoperative complications were recorded. Results Following exclusions and losses to follow-up, 334 medial robotic-arm assisted UKAs were assessed at a mean follow-up of 30.0 months (8.0 to 54.9). None of the measured parameters were associated with overall KOOS outcome. Correlations were described between specific KOOS subscales and intraoperative, post-implantation robotic data, and between FJS-12 and femoral component sagittal alignment. Three UKAs were revised, resulting in 99.0% survival at two years (95% confidence interval (CI) 97.9 to 100.0). Conclusion Although little correlation was found between intraoperative robotic data and overall clinical outcome, surgeons should consider information regarding 3D component placement and soft-tissue balancing to improve patient satisfaction. Reproducible and precise placement of components has been confirmed as essential for satisfactory clinical outcome.

Does component placement affect short-term clinical outcome in robotic-arm assisted unicompartmental knee arthroplasty? / Zambianchi, F.; Franceschi, G.; Rivi, E.; Banchelli, F.; Marcovigi, A.; Nardacchione, R.; Ensini, A.; Catani, F.. - In: THE BONE & JOINT JOURNAL. - ISSN 2049-4394. - 101:4(2019), pp. 435-442. [10.1302/0301-620X.101B4.BJJ-2018-0753.R1]

Does component placement affect short-term clinical outcome in robotic-arm assisted unicompartmental knee arthroplasty?

Zambianchi F.;Franceschi G.;Banchelli F.;Marcovigi A.;Catani F.
2019

Abstract

Aims The purpose of this multicentre observational study was to investigate the association between intraoperative component positioning and soft-tissue balancing on short-term clinical outcomes in patients undergoing robotic-arm assisted unicompartmental knee arthroplasty (UKA). Patients and Methods Between 2013 and 2016, 363 patients (395 knees) underwent robotic-arm assisted UKAs at two centres. Pre- and postoperatively, patients were administered Knee Injury and Osteoarthritis Score (KOOS) and Forgotten Joint Score-12 (FJS-12). Results were stratified as “good” and “bad” if KOOS/FJS-12 were more than or equal to 80. Intraoperative, post-implantation robotic data relative to CT-based components placement were collected and classified. Postoperative complications were recorded. Results Following exclusions and losses to follow-up, 334 medial robotic-arm assisted UKAs were assessed at a mean follow-up of 30.0 months (8.0 to 54.9). None of the measured parameters were associated with overall KOOS outcome. Correlations were described between specific KOOS subscales and intraoperative, post-implantation robotic data, and between FJS-12 and femoral component sagittal alignment. Three UKAs were revised, resulting in 99.0% survival at two years (95% confidence interval (CI) 97.9 to 100.0). Conclusion Although little correlation was found between intraoperative robotic data and overall clinical outcome, surgeons should consider information regarding 3D component placement and soft-tissue balancing to improve patient satisfaction. Reproducible and precise placement of components has been confirmed as essential for satisfactory clinical outcome.
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Does component placement affect short-term clinical outcome in robotic-arm assisted unicompartmental knee arthroplasty? / Zambianchi, F.; Franceschi, G.; Rivi, E.; Banchelli, F.; Marcovigi, A.; Nardacchione, R.; Ensini, A.; Catani, F.. - In: THE BONE & JOINT JOURNAL. - ISSN 2049-4394. - 101:4(2019), pp. 435-442. [10.1302/0301-620X.101B4.BJJ-2018-0753.R1]
Zambianchi, F.; Franceschi, G.; Rivi, E.; Banchelli, F.; Marcovigi, A.; Nardacchione, R.; Ensini, A.; Catani, F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1188714
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