European Journal of Orthopaedic Surgery & Traumatology (2018) 28:1447–1448 https://doi.org/10.1007/s00590-018-2220-0 LE T TER TO THE EDITOR • HIP - FR AC TUR ES Reliability of current classification systems for subtrochanteric femoral fractures; methodological issue to avoid misinterpretation 1,2 1 1 Siamak Sabour · Elham Bazmi · Hadis Barati Received: 17 April 2018 / Accepted: 27 April 2018 / Published online: 4 June 2018 © Springer-Verlag France SAS, part of Springer Nature 2018 We were interested to read the paper by İmerci A and col- Table 1 Limitation of kappa value to assess reliability of leagues published in Eur J Orthop Surg Traumatol 2018 two observers’ diagnoses with different prevalence in the April . The purpose of the authors was to evaluate the two categories. Authors own hypothetical data inter- and intra-observer reliability of the Russell Taylor, Observer (the first evalu- Total (%) Seinsheimer and AO classification systems, and to inves - ation) tigate whether or not the experience of the surgeon had Type I Type II any effect on the classification [ 1]. Although they correctly applied the Fleiss kappa to evaluate the inter-observer reli- Situation (a) ability, they did not take into account limitations of Cohen’s Observer Type I 90 3 93 (the second kappa to
European Journal of Orthopaedic Surgery & Traumatology – Springer Journals
Published: Jun 4, 2018
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