Scaphoid Nonunion Advanced Collapse Classifications: A Reliability Study

Journal of Hand and Microsurgery

Fernando Travaglini Penteado¹  João Baptista Gomes dos Santos²  Fábio Augusto Caporrino¹  Vinícius Ynoe de Moraes¹  João Carlos Belloti¹  Flávio Faloppa¹ 

[1] Escola Paulista de Medicina—Universidade Federal de São Paulo—UNIFESP-EPM—Hand and upper limb surgery division, São Paulo, SP Brazil;Rua Borges Lagoa, 786, São Paulo, SP Brazil

关键词: Scaphoid non-union;    Wrist osteoarthritis;    Agreement;    Kappa statistics;    Hand surgery;    Classification systems;   

DOI  :  10.1007/s12593-012-0062-2

学科分类：外科医学

来源: Thieme Medical and Scientific Publishers Pvt. Ltd.

【 摘 要 】

Watson & Ballet and Vender staging systems are widely known for classifying SNAC wrist osteoarthritis. Despite of its day-to-day use, no assessment for its agreement was performed. To Evaluate the intra and interobserver agreement for these classification systems. Forty-eight posteroanterior wrist radiographs from patients with osteoarthritis due to scaphoid nonunion were evaluated at two occasions—in a 1 week interval—by five observers with different expertise—hand surgeons, hand surgery residents, orthopedic surgeons and orthopedic surgery residents. They rated osteoarthritis stages according to the above-cited systems. Kappa statistics were performed for measuring agreement. Unsatisfactory (Cohen’s Kappa <0.5) agreement was found for all intra and inter observer measures for both systems. There was no clear correlation between expertise and kappa values. Unsatisfactory agreement was found for both classifications, despite the evaluator expertise. A rationale of a more reliable classification is needed.

【 授权许可】

Unknown