Avaliação radiográfica do alinhamento pós-operatório na artroplastia total de joelho

Abstract: Objective To demonstrate the greater accuracy of panoramic radiographs of the lower limbs (long) in relation to short radiographs of the knee in the measurement of the mechanical axis of the lower limb after total knee arthroplasty (TKA). Methods A retrospective study was conducted to evaluate the accuracy of long and short postoperative radiographic images of 70 patients submitted to TKA in our service. The images were analyzed at random, at different times, by three orthopedists. In all images, the mechanical axis of the limb, femur and tibia were traced and femorotibial angles (FTAs) were calculated. The intraclass correlation coefficient (ICC) was calculated to evaluate the agreement of the measurement of the inter- and intra-observer mechanical axis. Results It was observed that there was high intra and interobserver agreement when panoramic radiographs were used, with minimum intra and interobserver ICC of 0.89, equivalent to a very strong agreement. On short radiographs in the anteroposterior incidence (AP) of the knee, the ICC showed moderate agreement, obtaining a maximum value of 0.75. Conclusion There is a significant difference in accuracy for the measurement of the mechanical axis of the lower limb, comparing long and short radiographs of the lower limb. Thus, for the proper measurement of the mechanical axis of the lower limb, we suggest the performance of long radiography in the postoperative period of TKA.

Weitere Titel
Radiographic Evaluation of Postoperative Alignment in Total Knee Arthroplasty
Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Portugiesisch

Erschienen in
Avaliação radiográfica do alinhamento pós-operatório na artroplastia total de joelho ; day:19 ; month:04 ; year:2021
Revista Brasileira de ortopedia ; (19.04.2021)

Beteiligte Personen und Organisationen
Thomaz, Leonardo Dalla Giacomassa Rocha
Geist, João Guilherme Brochado
Lucena, Rafael De Luca De
Schwartsmann, Carlos Roberto
Freitas, Geraldo Luiz Schuck de
Spinelli, Leandro de Freitas

DOI
10.1055/s-0041-1726061
URN
urn:nbn:de:101:1-2022031921012767930520
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:33 MESZ

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Beteiligte

  • Thomaz, Leonardo Dalla Giacomassa Rocha
  • Geist, João Guilherme Brochado
  • Lucena, Rafael De Luca De
  • Schwartsmann, Carlos Roberto
  • Freitas, Geraldo Luiz Schuck de
  • Spinelli, Leandro de Freitas

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