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No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial
BACKGROUND: A clinical trial comparing MB (mobile-bearing) versus FB (fixed-bearing) in medial partial knee arthroplasty (PKA) in octagenarians has been conducted. The focus of the present study was on PROMs, range of motion (ROM), implant positioning and implants survivorship. The hypothesis of the...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Paris
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10074352/ https://www.ncbi.nlm.nih.gov/pubmed/37017739 http://dx.doi.org/10.1007/s00590-023-03537-7 |
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author | D’Ambrosi, Riccardo Valli, Federico Nuara, Alessandro Mariani, Ilaria Di Feo, Fabrizio Ursino, Nicola Formica, Matteo Mangiavini, Laura Hantes, Michael Migliorini, Filippo |
author_facet | D’Ambrosi, Riccardo Valli, Federico Nuara, Alessandro Mariani, Ilaria Di Feo, Fabrizio Ursino, Nicola Formica, Matteo Mangiavini, Laura Hantes, Michael Migliorini, Filippo |
author_sort | D’Ambrosi, Riccardo |
collection | PubMed |
description | BACKGROUND: A clinical trial comparing MB (mobile-bearing) versus FB (fixed-bearing) in medial partial knee arthroplasty (PKA) in octagenarians has been conducted. The focus of the present study was on PROMs, range of motion (ROM), implant positioning and implants survivorship. The hypothesis of the present study was that MB implants performed better than FB in PKA in octogenarians. METHODS: The first group received FB PKA-PPK®; the second received MB PKA-Oxford. Patients were not randomly allocated. The following PROMs were administered at T(0) (pre-operatively), T(1) (1 year after surgery), and T(2) (3 years after surgery): visual analogue scale (VAS), Knee Society Score (KSS) and Oxford Knee Score (OKS). Data regarding the implant survivorship and ROM were also collected. Furthermore, the following radiographic parameters were measured: Femoral component varus/valgus; Tibial component varus/valgus; Anteroposterior slope. RESULTS: At T(0), 28 patients were included in the FB and 33 in the MB group. The surgical time was shorter in the FB group (p < 0.001). No difference between FB and MB in ROM, VAS, KSS, and OKS at each follow-up (p > 0.05). No difference was found in implant positioning (p > 0.05). At last follow-up, FB group reported three failures caused by aseptic loosening. Four failures were observed in the MB cohort: two for bearing dislocation and two for aseptic loosening. The Kaplan–Meier Curve found no differences in implant survivorship. CONCLUSIONS: According to the main findings of the present clinical trial, MB implants performed similar to FB in PKA in octogenarians. The FB group demonstrated shorted surgical time. No difference was found in patient reported outcome measures, ROM, implant positioning, and survivorship. LEVEL OF EVIDENCE: Level II, prospective study. |
format | Online Article Text |
id | pubmed-10074352 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Springer Paris |
record_format | MEDLINE/PubMed |
spelling | pubmed-100743522023-04-05 No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial D’Ambrosi, Riccardo Valli, Federico Nuara, Alessandro Mariani, Ilaria Di Feo, Fabrizio Ursino, Nicola Formica, Matteo Mangiavini, Laura Hantes, Michael Migliorini, Filippo Eur J Orthop Surg Traumatol Original Article BACKGROUND: A clinical trial comparing MB (mobile-bearing) versus FB (fixed-bearing) in medial partial knee arthroplasty (PKA) in octagenarians has been conducted. The focus of the present study was on PROMs, range of motion (ROM), implant positioning and implants survivorship. The hypothesis of the present study was that MB implants performed better than FB in PKA in octogenarians. METHODS: The first group received FB PKA-PPK®; the second received MB PKA-Oxford. Patients were not randomly allocated. The following PROMs were administered at T(0) (pre-operatively), T(1) (1 year after surgery), and T(2) (3 years after surgery): visual analogue scale (VAS), Knee Society Score (KSS) and Oxford Knee Score (OKS). Data regarding the implant survivorship and ROM were also collected. Furthermore, the following radiographic parameters were measured: Femoral component varus/valgus; Tibial component varus/valgus; Anteroposterior slope. RESULTS: At T(0), 28 patients were included in the FB and 33 in the MB group. The surgical time was shorter in the FB group (p < 0.001). No difference between FB and MB in ROM, VAS, KSS, and OKS at each follow-up (p > 0.05). No difference was found in implant positioning (p > 0.05). At last follow-up, FB group reported three failures caused by aseptic loosening. Four failures were observed in the MB cohort: two for bearing dislocation and two for aseptic loosening. The Kaplan–Meier Curve found no differences in implant survivorship. CONCLUSIONS: According to the main findings of the present clinical trial, MB implants performed similar to FB in PKA in octogenarians. The FB group demonstrated shorted surgical time. No difference was found in patient reported outcome measures, ROM, implant positioning, and survivorship. LEVEL OF EVIDENCE: Level II, prospective study. Springer Paris 2023-04-05 2023 /pmc/articles/PMC10074352/ /pubmed/37017739 http://dx.doi.org/10.1007/s00590-023-03537-7 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Original Article D’Ambrosi, Riccardo Valli, Federico Nuara, Alessandro Mariani, Ilaria Di Feo, Fabrizio Ursino, Nicola Formica, Matteo Mangiavini, Laura Hantes, Michael Migliorini, Filippo No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title | No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title_full | No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title_fullStr | No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title_full_unstemmed | No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title_short | No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
title_sort | no difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10074352/ https://www.ncbi.nlm.nih.gov/pubmed/37017739 http://dx.doi.org/10.1007/s00590-023-03537-7 |
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