CC BY-NC-ND 4.0 · Rev Bras Ortop (Sao Paulo) 2019; 54(02): 171-177
DOI: 10.1016/j.rbo.2017.11.003
Original Article | Artigo Original
Sociedade Brasileira de Ortopedia e Traumatologia. Published by Thieme Revnter Publicações Ltda Rio de Janeiro, Brazil

Evaluation of the Reproducibility of the Dejour Classification for Femoropatellar Instability[*]

Article in several languages: português | English
Rodrigo de Souza Mendes Santiago Mousinho
1  Instituto de Traumatologia e Ortopedia Romeu Krause (Itork), Recife, PE, Brasil
,
José Neias Araújo Ribeiro
2  Universidade Federal do Ceará, Departamento de Ortopedia e Traumatologia, Fortaleza, CE, Brasil
,
Francisco Kartney Sarmento Pedrosa
1  Instituto de Traumatologia e Ortopedia Romeu Krause (Itork), Recife, PE, Brasil
,
Diego Ariel de Lima
1  Instituto de Traumatologia e Ortopedia Romeu Krause (Itork), Recife, PE, Brasil
2  Universidade Federal do Ceará, Departamento de Ortopedia e Traumatologia, Fortaleza, CE, Brasil
3  Centro Universitário Christus (Unichristus), Fortaleza, CE, Brasil
4  Universidade Federal Rural do Semiárido, Mossoró, RN, Brasil
,
Romeu Krause Gonçalves
1  Instituto de Traumatologia e Ortopedia Romeu Krause (Itork), Recife, PE, Brasil
,
José Alberto Dias Leite
2  Universidade Federal do Ceará, Departamento de Ortopedia e Traumatologia, Fortaleza, CE, Brasil
3  Centro Universitário Christus (Unichristus), Fortaleza, CE, Brasil
› Author Affiliations
Further Information

Publication History

14 September 2017

21 November 2017

Publication Date:
10 May 2019 (online)

Abstract

Objective To evaluate the classification proposed by David Dejour to describe trochlear dysplasia of the knee through inter- and intraobserver reproducibility measurements.

Methods Ten patients with trochlear dysplasia were studied. Three physicians, members of the Sociedade Brasileira de Cirurgia do Joelho (Brazilian Society of Knee Surgery), were invited to evaluate the images. Intra- and interobserver analyses were performed at one-week intervals. Reproducibility was evaluated in four scenarios: using only radiography; using radiography and tomography; using radiography and consulting the classification; and using radiography and tomography, consulting the classification.

Results The intraobserver evaluation presented discordant results. In the interobserver analysis, the degree of agreement was low for the analyses that used only radiography and excellent for those in which both radiography and tomography were used.

Conclusion The Dejour classification presented a low intra- and interobserver reproducibility when only the profile radiography was used. It was demonstrated that the use of the radiography alone for classification may generate lack of uniformity even among experienced observers. However, when radiography and tomography were combined, reproducibility improved.

* Work developed at the Department of Orthopedics and Traumatology of Centro Universitário Christus (Unichristus), Fortaleza, CE, Brazil.