Evaluation of the Intraobserver and Interobserver Agreements of the New AO/OTA Classification for Fractures of the Trochanteric Region and the Femoral Neck

In the present study, we investigated the intra and interobserver agreement of the new Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association (AO/OTA) classification for fractures of the proximal extremity of the femur.  One hundred hip radiographs were selected from patients who...

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Published in:Revista brasileira de ortopedia 2022-04, Vol.57 (2), p.241-249
Main Authors: Busato, Thiago Sampaio, Baldasso, Daniel, Matioski Filho, Gladyston Roberto, Godoi, Lucas Dias, Morozowski, Marcelo Gavazzoni, Capriotti, Juan Rodolfo Vilela
Format: Article
Language:English
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ORTHOPEDICS
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Summary:In the present study, we investigated the intra and interobserver agreement of the new Arbeitsgemeinschaft für Osteosynthesefragen/Orthopaedic Trauma Association (AO/OTA) classification for fractures of the proximal extremity of the femur.  One hundred hip radiographs were selected from patients who suffered fractures of the trochanteric region or femoral neck. Four orthopedists, fellowship trained hip surgeons, and four orthopedic residents evaluated and classified fractures according to the new AO/OTA system on two separate occasions. The (k) coefficient was used to evaluate intra and interobserver agreement in the different steps of the classification, namely: , , , and  Hip surgery experts obtained almost perfect intraobserver agreement of , substantial for and, only moderate, for and The residents had lower performance, with substantial agreement for moderate for , and reasonable for and In the specialists' interobserver evaluation, there was also a gradual decrease in the agreement between type (almost perfect) and group (moderate), which was even lower for and Residents had a substantial interobserver agreement for , moderate for , and reasonable in the other branches.  The new AO/OTA classification for fractures of the trochanteric region and femoral neck showed intra and interobserver agreements considered appropriate for and , with a drop in the subsequent branches, that is, for and Still, in relation to the old AO/OTA classification, there was an improvement in the agreements for
ISSN:0102-3616
1982-4378
1982-4378
DOI:10.1055/s-0041-1729939