数字X线摄影中髌骨高度测量方法的评估
ASSESSMENT OF PATELLAR HEIGHT MEASUREMENT METHODS FROM DIGITAL RADIOGRAPHY.
作者信息
Gracitelli Guilherme Conforto, Pierami Rafael, Tonelli Thomaz Antonio, Falótico Guilherme Guadagnini, Silva Flavio Duarte, Nakama Gilberto Yoshinobu, da Silveira Franciozi Carlos Eduardo, de Queiroz Antonio Altenor Bessa, Filho Mario Carneiro
机构信息
Third-year Resident Physician in the Department of Orthopedics and Traumatology, EPM/UNIFESP, São Paulo, SP, Brazil.
Orthopedist in the Department of Orthopedics and Traumatology, EPM/UNIFESP, São Paulo, SP, Brazil.
出版信息
Rev Bras Ortop. 2015 Dec 6;47(2):210-3. doi: 10.1016/S2255-4971(15)30088-4. eCollection 2012 Mar-Apr.
OBJECTIVE
To analyze the most common methods for measuring patellar height and the impact of observer experience in correlations with the other observers using digital radiography.
METHODS
Sixty digital radiographs of the knee in lateral view were analyzed by four observers: a physician in the second year of medical residence in orthopedics (R2); a physician in the third year of medical residence in orthopedics (R3); an orthopedic surgeon who was a specialist in knee surgery (SK); and a radiologist who was a specialist in musculoskeletal radiology (SR). The indices used were: Insall-Salvati (IS), Blackburne-Peel (BP), Caton-Deschamps (CD) and modified Insall-Salvati (ISM). The interobserver agreement was calculated using the kappa coefficient (κ).
RESULTS
The highest correlation coefficients were found when using the IS method followed by the CD method. The worst correlation was observed in the ISM method. The highest interobserver agreement was found between the orthopedic surgeon specializing in knee surgery and the radiologist specializing in musculoskeletal radiology, for the four measurement methods used.
CONCLUSION
Using digital radiography, the Insall-Salvati and Caton-Deschamps indexes presented the highest interobserver agreement, and this was also positively influenced by the observer's level of experience.
目的
分析测量髌骨高度的最常用方法，以及观察者经验对使用数字X线摄影与其他观察者之间相关性的影响。
方法
四位观察者对60张膝关节侧位数字X线片进行分析：一名骨科住院医师第二年（R2）；一名骨科住院医师第三年（R3）；一名膝关节外科专家骨科医生（SK）；一名肌肉骨骼放射学专家放射科医生（SR）。使用的指标有：Insall-Salvati（IS）、Blackburne-Peel（BP）、Caton-Deschamps（CD）和改良Insall-Salvati（ISM）。使用kappa系数（κ）计算观察者间的一致性。
结果
使用IS法时发现相关性系数最高，其次是CD法。在ISM法中观察到最差的相关性。对于所使用的四种测量方法，在膝关节外科专家骨科医生和肌肉骨骼放射学专家放射科医生之间发现了最高的观察者间一致性。
结论
使用数字X线摄影时，Insall-Salvati和Caton-Deschamps指数呈现出最高的观察者间一致性，并且这也受到观察者经验水平的积极影响。
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