Repository logo
 
Publication

The role of the femoral anterior offset index (AOI) on the degree of flexion in total knee arthroplasty (TKA)

2019Journal article Open access
Simple item page
dc.contributor.authorRosa, João Maia
dc.contributor.authorVide, João
dc.contributor.authorCarvalho, Maria Miguel
dc.contributor.authorDuarte, António
dc.contributor.authorCruz, Henrique
dc.contributor.authorFontes, Ana Paula
dc.contributor.authorSousa, João Paulo
dc.date.accessioned2022-07-21T10:38:01Z
dc.date.available2022-07-21T10:38:01Z
dc.date.issued2019
dc.date.updated2022-07-20T16:56:39Z
dc.description.abstractBackground: Anterior projection of the femoral condyles is often disregarded as an issue in knee arthroplasty. Overstuffing the patellofemoral joint may limit knee flexion and be a source of patellofemoral complications, thus having an impact in satisfaction rates after total knee arthroplasty (TKA). Our hypothesis is that excessive anterior projection of the femoral condyles as a negative effect in flexion range after TKA, introducing a new concept, the anterior offset index (AOI). Methods: From a group of 99 consecutive patients who underwent TKA using patient specific instrumentation (PSI), we selected the patients with good pre-operative flexion range (above 90º) and a 6-minute walk test (6 MWT) ≥ 0 meters, evaluating the correlation between the AOI and the flexion range. A total of 23 patients were included in the study. Results: A moderate and positive correlation (r=0.488; p=0.018) between AOI and flexion range was found. Conclusions: Our results seem to indicate that the AOI influences postoperative flexion in TKA, in patients with a good pre-operative flexion and good functional outcome. AOI is an important concept to retain when optimizing knee flexion and minimizing patellofemoral complications. However, more studies need to be done in order to clarify the role of all the factors influencing post op flexion after TKA.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttp://dx.doi.org/10.18203/issn.2455-4510.IntJResOrthop20191780pt_PT
dc.identifier.issn2455-4510
dc.identifier.slugcv-prod-2485435
dc.identifier.urihttp://hdl.handle.net/10400.1/18054
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMedip Academypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectTotal knee arthroplastypt_PT
dc.subjectAnterior offset indexpt_PT
dc.subjectKnee flexionpt_PT
dc.subjectPatellofemoral jointpt_PT
dc.subjectPatellofemoral kinematicspt_PT
dc.subjectAnterior knee painpt_PT
dc.titleThe role of the femoral anterior offset index (AOI) on the degree of flexion in total knee arthroplasty (TKA)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage381pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage376pt_PT
oaire.citation.titleInternational Journal of Research in Orthopaedicspt_PT
oaire.citation.volume5pt_PT
person.familyNamede Almeida Fontes
person.givenNameAna Paula
person.identifier.ciencia-id6E12-B4BA-87AF
person.identifier.orcid0000-0002-4431-5229
rcaap.cv.cienciaid6E12-B4BA-87AF | Ana Paula de Almeida Fontes
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication00fe72a3-c82a-4726-bd5d-efeb7fb59650
relation.isAuthorOfPublication.latestForDiscovery00fe72a3-c82a-4726-bd5d-efeb7fb59650

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
The_role_of_the_femoral_anterior_offset_index_on_the_degree_of_flexion_in_total_knee_arthroplasty.pdf
Size:
318.63 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
3.49 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESS2-Artigos (em revistas ou actas indexadas)