Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?

Purpose: Computer-assisted systems improve conventional instrumentation in normalizing the axis of the limb in frontal deformities. The performance of a postoperative X-ray has been questioned to verify this axis, assuming that it can be replaced by the final image that appears on the system monitor...

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Autores: Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629, Noriega Fernández, Alfonso, Roncero González, Sergio
Formato: artículo
Fecha de publicación:2025
País:España
Recursos:Universidad de Oviedo (UNIOVI)
Repositorio:RUO. Repositorio Institucional de la Universidad de Oviedo
Idioma:inglés
OAI Identifier:oai:dnet:ruo_________::68dc876225a91b5e9f4464735c45c082
Acesso em linha:https://hdl.handle.net/10651/83319
https://dx.doi.org/10.1007/S00590-025-04551-7
Access Level:acceso abierto
Palavra-chave:Alignment
Computer-assisted system
Digital x-ray
Technology-assisted TKA
Total knee arthroplasty
Varus-valgus deformities
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spelling Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629Noriega Fernández, AlfonsoRoncero González, SergioAlignmentComputer-assisted systemDigital x-rayTechnology-assisted TKATotal knee arthroplastyVarus-valgus deformitiesPurpose: Computer-assisted systems improve conventional instrumentation in normalizing the axis of the limb in frontal deformities. The performance of a postoperative X-ray has been questioned to verify this axis, assuming that it can be replaced by the final image that appears on the system monitor. The objective of this work is to verify whether both axes are similar. Methods: In 123 patients with varus–valgus frontal deformity, a total knee arthroplasty was implanted with the aid of the same navigation system without previous images. On the one hand, the final femorotibial angulation that appeared on the monitor screen, and on the other hand, the one observed in a long postoperative digitalized radiograph were recorded. Results: A discrepancy and poor correlation were observed between the femorotibial alignment verified radiographically and that shown on the system monitor at the end of the surgical procedure. Differences were significant in the valgus deformity group (p = 0.04) and especially in the varus cases (p < 0.001). The median postoperative axis as measured by computer-assisted was very close to neutral, but a deviation toward varus was observed on the X-ray. Conclusion: The axis of the limb observed with a computer-assisted system is closer to neutral alignment than that shown on the digitalized X-ray image after total arthroplasty in patients with frontal deformities. A postoperative X-ray is recommended as certification of the result, being more reliable than the final image from the system monitor.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was partially funded by the Fondo de Investigación Sanitaria (Instituto de Salud Carlos III, Ministry of Health, Spain) Project PI12/01098.Springer Nature20252025-12-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articlehttps://hdl.handle.net/10651/83319https://dx.doi.org/10.1007/S00590-025-04551-7reponame:RUO. Repositorio Institucional de la Universidad de Oviedoinstname:Universidad de Oviedo (UNIOVI)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:dnet:ruo_________::68dc876225a91b5e9f4464735c45c0822026-06-07T06:38:51Z
dc.title.none.fl_str_mv Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
title Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
spellingShingle Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629
Alignment
Computer-assisted system
Digital x-ray
Technology-assisted TKA
Total knee arthroplasty
Varus-valgus deformities
title_short Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
title_full Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
title_fullStr Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
title_full_unstemmed Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
title_sort Is technological-assisted leg axis alignment reliable in total knee arthroplasty with varus–valgus deformities?
dc.creator.none.fl_str_mv Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629
Noriega Fernández, Alfonso
Roncero González, Sergio
author Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629
author_facet Hernández-Vaquero Panizo, Daniel|||0000-0003-3518-6629
Noriega Fernández, Alfonso
Roncero González, Sergio
author_role author
author2 Noriega Fernández, Alfonso
Roncero González, Sergio
author2_role author
author
dc.subject.none.fl_str_mv Alignment
Computer-assisted system
Digital x-ray
Technology-assisted TKA
Total knee arthroplasty
Varus-valgus deformities
topic Alignment
Computer-assisted system
Digital x-ray
Technology-assisted TKA
Total knee arthroplasty
Varus-valgus deformities
description Purpose: Computer-assisted systems improve conventional instrumentation in normalizing the axis of the limb in frontal deformities. The performance of a postoperative X-ray has been questioned to verify this axis, assuming that it can be replaced by the final image that appears on the system monitor. The objective of this work is to verify whether both axes are similar. Methods: In 123 patients with varus–valgus frontal deformity, a total knee arthroplasty was implanted with the aid of the same navigation system without previous images. On the one hand, the final femorotibial angulation that appeared on the monitor screen, and on the other hand, the one observed in a long postoperative digitalized radiograph were recorded. Results: A discrepancy and poor correlation were observed between the femorotibial alignment verified radiographically and that shown on the system monitor at the end of the surgical procedure. Differences were significant in the valgus deformity group (p = 0.04) and especially in the varus cases (p < 0.001). The median postoperative axis as measured by computer-assisted was very close to neutral, but a deviation toward varus was observed on the X-ray. Conclusion: The axis of the limb observed with a computer-assisted system is closer to neutral alignment than that shown on the digitalized X-ray image after total arthroplasty in patients with frontal deformities. A postoperative X-ray is recommended as certification of the result, being more reliable than the final image from the system monitor.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-12-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10651/83319
https://dx.doi.org/10.1007/S00590-025-04551-7
url https://hdl.handle.net/10651/83319
https://dx.doi.org/10.1007/S00590-025-04551-7
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:RUO. Repositorio Institucional de la Universidad de Oviedo
instname:Universidad de Oviedo (UNIOVI)
instname_str Universidad de Oviedo (UNIOVI)
reponame_str RUO. Repositorio Institucional de la Universidad de Oviedo
collection RUO. Repositorio Institucional de la Universidad de Oviedo
repository.name.fl_str_mv
repository.mail.fl_str_mv
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