Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures
ABSTRACT Objective: This study evaluated the reproducibility of the three main classifications of ankle fractures most commonly used in emergency clinical practice: Lauge-Hansen, Danis-Weber, and AO-OTA. The secondary objective was to assess whether the level of professional experience influenced...
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Sociedade Brasileira de Ortopedia e Traumatologia
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| Series: | Revista Brasileira de Ortopedia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162018000100101&lng=en&tlng=en |
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| author | Lucas Lopes da Fonseca Icaro Gusmão Nunes Rodrigo Reis Nogueira Gustavo Eduardo Vieira Martins Antônio Cesar Mesencio Sílvia Iovine Kobata |
| author_facet | Lucas Lopes da Fonseca Icaro Gusmão Nunes Rodrigo Reis Nogueira Gustavo Eduardo Vieira Martins Antônio Cesar Mesencio Sílvia Iovine Kobata |
| author_sort | Lucas Lopes da Fonseca |
| collection | DOAJ |
| description | ABSTRACT Objective: This study evaluated the reproducibility of the three main classifications of ankle fractures most commonly used in emergency clinical practice: Lauge-Hansen, Danis-Weber, and AO-OTA. The secondary objective was to assess whether the level of professional experience influenced the interobserver agreement for the classification of this pathology. Methods: The study included 83 digitized preoperative radiographic images of ankle fractures, in anteroposterior and lateral views, of different adults that had occurred between January and December 2013. For sample calculation, the estimated accuracy was approximately 15%, with a sampling error of 5% and a sampling power of 80%. The images were analyzed and classified by six different observers: two foot and ankle surgeons, two general orthopedic surgeons, and two-second-year residents in orthopedics and traumatology. The Kappa statistical method of multiple variances was used to assess the variations. Results: The Danis-Weber classification indicated that 40% of the agreements among all observers were good or excellent, whereas only 20% of good and excellent agreements were obtained using the AO and Lauge Hansen classifications. The Kappa index was 0.49 for the Danis-Weber classification, 0.32 for Lauge Hansen, and 0.38 for AO. Conclusion: The Hansen-Lauge classification presented the poorest interobserver agreement among the three systems. The AO classification demonstrated a moderate agreement and the Danis-Weber classification presented an excellent interobserver agreement index, regardless of professional experience. |
| first_indexed | 2024-03-08T08:35:11Z |
| format | Article |
| id | doaj.art-3fb2759195ac48b3a2ca5564384c7f3f |
| institution | Directory Open Access Journal |
| issn | 1982-4378 |
| language | English |
| last_indexed | 2024-03-08T08:35:11Z |
| publisher | Sociedade Brasileira de Ortopedia e Traumatologia |
| record_format | Article |
| series | Revista Brasileira de Ortopedia |
| spelling | doaj.art-3fb2759195ac48b3a2ca5564384c7f3f2024-02-02T01:23:44ZengSociedade Brasileira de Ortopedia e TraumatologiaRevista Brasileira de Ortopedia1982-437853110110610.1016/j.rboe.2017.11.013S0102-36162018000100101Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fracturesLucas Lopes da FonsecaIcaro Gusmão NunesRodrigo Reis NogueiraGustavo Eduardo Vieira MartinsAntônio Cesar MesencioSílvia Iovine KobataABSTRACT Objective: This study evaluated the reproducibility of the three main classifications of ankle fractures most commonly used in emergency clinical practice: Lauge-Hansen, Danis-Weber, and AO-OTA. The secondary objective was to assess whether the level of professional experience influenced the interobserver agreement for the classification of this pathology. Methods: The study included 83 digitized preoperative radiographic images of ankle fractures, in anteroposterior and lateral views, of different adults that had occurred between January and December 2013. For sample calculation, the estimated accuracy was approximately 15%, with a sampling error of 5% and a sampling power of 80%. The images were analyzed and classified by six different observers: two foot and ankle surgeons, two general orthopedic surgeons, and two-second-year residents in orthopedics and traumatology. The Kappa statistical method of multiple variances was used to assess the variations. Results: The Danis-Weber classification indicated that 40% of the agreements among all observers were good or excellent, whereas only 20% of good and excellent agreements were obtained using the AO and Lauge Hansen classifications. The Kappa index was 0.49 for the Danis-Weber classification, 0.32 for Lauge Hansen, and 0.38 for AO. Conclusion: The Hansen-Lauge classification presented the poorest interobserver agreement among the three systems. The AO classification demonstrated a moderate agreement and the Danis-Weber classification presented an excellent interobserver agreement index, regardless of professional experience.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162018000100101&lng=en&tlng=enAnkle injuriesObserver variationAnkle fracture/classification |
| spellingShingle | Lucas Lopes da Fonseca Icaro Gusmão Nunes Rodrigo Reis Nogueira Gustavo Eduardo Vieira Martins Antônio Cesar Mesencio Sílvia Iovine Kobata Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures Revista Brasileira de Ortopedia Ankle injuries Observer variation Ankle fracture/classification |
| title | Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures |
| title_full | Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures |
| title_fullStr | Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures |
| title_full_unstemmed | Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures |
| title_short | Reproducibility of the Lauge-Hansen, Danis-Weber, and AO classifications for ankle fractures |
| title_sort | reproducibility of the lauge hansen danis weber and ao classifications for ankle fractures |
| topic | Ankle injuries Observer variation Ankle fracture/classification |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-36162018000100101&lng=en&tlng=en |
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