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Titre : | Inter and intra-observer reliability in assessment of the position of the lateral sesamoid in determining the severity of hallux valgus |
Type de document : | article de périodique |
Auteurs : | Sunil Panchani ; [et al.] |
Année de publication : | 2016 |
Article en page(s) : | p. 59-61 |
Langues : | Anglais (eng) |
Descripteurs (mots clés) : | [Thésaurus Mesh]Chirurgie générale [Thésaurus Mesh]Hallux valgus [Thésaurus Mesh]Pied
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Mots-clés : | Hallux valgus Sesamoid Foot surgery Classification |
Résumé : |
Background
The position of the lateral sesamoid on standard dorso-plantar weight bearing radiographs, with respect to the lateral cortex of the first metatarsal, has been shown to correlate well with the degree of the hallux valgus angle. This study aimed to assess the inter- and intra-observer error of this new classification system.
Methods
Five orthopaedic consultants and five trainee orthopaedic surgeons were recruited to assess and document the degree of displacement of the lateral sesamoid on 144 weight-bearing dorso-plantar radiographs on two separate occasions. The severity of hallux valgus was defined as normal (0%), mild (≤50%), moderate (51–≤99%) or severe (≥100%) depending on the percentage displacement of the lateral sesamoid body from the lateral cortical border of the first metatarsal.
Results
Consultant intra-observer variability showed good agreement between repeated assessment of the radiographs (mean Kappa = 0.75). Intra-observer variability for trainee orthopaedic surgeons also showed good agreement with a mean Kappa = 0.73. Intraclass correlations for consultants and trainee surgeons was also high.
Conclusion
The new classification system of assessing the severity of hallux valgus shows high inter- and intra-observer variability with good agreement and reproducibility between surgeons of consultant and trainee grades.
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