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.
Data di pubblicazione: | 2019 |
Titolo: | Does component placement affect short-term clinical outcome in robotic-arm assisted unicompartmental knee arthroplasty? |
Autore/i: | Zambianchi, F.; Franceschi, G.; Rivi, E.; Banchelli, F.; Marcovigi, A.; Nardacchione, R.; Ensini, A.; Catani, F. |
Autore/i UNIMORE: | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1302/0301-620X.101B4.BJJ-2018-0753.R1 |
Rivista: | |
Volume: | 101 |
Fascicolo: | 4 |
Pagina iniziale: | 435 |
Pagina finale: | 442 |
Codice identificativo ISI: | WOS:000462754300013 |
Codice identificativo Scopus: | 2-s2.0-85063986652 |
Codice identificativo Pubmed: | 30929494 |
Citazione: | 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. |
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