Cargando…
Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients
BACKGROUND AND PURPOSE: Unicompartmental knee arthroplasty (UKA) is an established method of treating isolated gonartrosis. Modern techniques such as computer-assisted surgery (CAS) and minimally invasive surgery (MIS) are attractive complementary methods to UKA. However, the positioning of the comp...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Informa Healthcare
2012
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3555452/ https://www.ncbi.nlm.nih.gov/pubmed/23043273 http://dx.doi.org/10.3109/17453674.2012.736840 |
_version_ | 1782257042532073472 |
---|---|
author | Martinez-Carranza, Nicolas Weidenhielm, Lars Crafoord, Joakim Hedström, Margareta |
author_facet | Martinez-Carranza, Nicolas Weidenhielm, Lars Crafoord, Joakim Hedström, Margareta |
author_sort | Martinez-Carranza, Nicolas |
collection | PubMed |
description | BACKGROUND AND PURPOSE: Unicompartmental knee arthroplasty (UKA) is an established method of treating isolated gonartrosis. Modern techniques such as computer-assisted surgery (CAS) and minimally invasive surgery (MIS) are attractive complementary methods to UKA. However, the positioning of the components remains a concern. Thus, we performed a prospective study to assess whether there was deviation between the navigated implant position and the final implant position. PATIENTS AND METHODS: We performed UKA with MIS and CAS in 13 patients. By comparing intraoperative navigation data with postoperative computed tomography (CT) measurements, we calculated the deviation between the computer-assisted implant position and the final 3-D implant position of the femoral and tibial components. RESULTS: The computer-assisted placement of the femoral and tibial component showed adequate position and consistent results regarding flexion-extension and varus-valgus. However, regarding rotation there was a large variation and 6 of 10 patients were outside the target range for both the femoral component and the tibial component. INTERPRETATION: Difficulties in assessing anatomical landmarks with the CAS in combination with MIS might be a reason for the poor rotational alignment of the components. |
format | Online Article Text |
id | pubmed-3555452 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Informa Healthcare |
record_format | MEDLINE/PubMed |
spelling | pubmed-35554522013-01-28 Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients Martinez-Carranza, Nicolas Weidenhielm, Lars Crafoord, Joakim Hedström, Margareta Acta Orthop Knee BACKGROUND AND PURPOSE: Unicompartmental knee arthroplasty (UKA) is an established method of treating isolated gonartrosis. Modern techniques such as computer-assisted surgery (CAS) and minimally invasive surgery (MIS) are attractive complementary methods to UKA. However, the positioning of the components remains a concern. Thus, we performed a prospective study to assess whether there was deviation between the navigated implant position and the final implant position. PATIENTS AND METHODS: We performed UKA with MIS and CAS in 13 patients. By comparing intraoperative navigation data with postoperative computed tomography (CT) measurements, we calculated the deviation between the computer-assisted implant position and the final 3-D implant position of the femoral and tibial components. RESULTS: The computer-assisted placement of the femoral and tibial component showed adequate position and consistent results regarding flexion-extension and varus-valgus. However, regarding rotation there was a large variation and 6 of 10 patients were outside the target range for both the femoral component and the tibial component. INTERPRETATION: Difficulties in assessing anatomical landmarks with the CAS in combination with MIS might be a reason for the poor rotational alignment of the components. Informa Healthcare 2012-12 2012-11-26 /pmc/articles/PMC3555452/ /pubmed/23043273 http://dx.doi.org/10.3109/17453674.2012.736840 Text en Copyright: © Nordic Orthopaedic Federation http://creativecommons.org/licenses/by-nc/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited. |
spellingShingle | Knee Martinez-Carranza, Nicolas Weidenhielm, Lars Crafoord, Joakim Hedström, Margareta Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title | Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title_full | Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title_fullStr | Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title_full_unstemmed | Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title_short | Deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: A pilot study in 13 patients |
title_sort | deviation between navigated and final 3-dimensional implant position in mini-invasive unicompartmental knee arthroplasty: a pilot study in 13 patients |
topic | Knee |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3555452/ https://www.ncbi.nlm.nih.gov/pubmed/23043273 http://dx.doi.org/10.3109/17453674.2012.736840 |
work_keys_str_mv | AT martinezcarranzanicolas deviationbetweennavigatedandfinal3dimensionalimplantpositioninminiinvasiveunicompartmentalkneearthroplastyapilotstudyin13patients AT weidenhielmlars deviationbetweennavigatedandfinal3dimensionalimplantpositioninminiinvasiveunicompartmentalkneearthroplastyapilotstudyin13patients AT crafoordjoakim deviationbetweennavigatedandfinal3dimensionalimplantpositioninminiinvasiveunicompartmentalkneearthroplastyapilotstudyin13patients AT hedstrommargareta deviationbetweennavigatedandfinal3dimensionalimplantpositioninminiinvasiveunicompartmentalkneearthroplastyapilotstudyin13patients |