Reliability of the Crowe und Hartofilakidis classifications used in the assessment of the adult dysplastic hip

Skeletal Radiology
Ralf DeckingKlaus-Peter Günther

Abstract

To assess the inter-observer and intra-observer reliability of two commonly used radiographic classification systems in the evaluation of hip dysplasia in skeletally mature adults. Three observers with different levels of training independently classified 62 dysplastic hips on 51 standard anteriorposterior pelvis radiographs according to the criteria defined by Crowe and by Hartofilakidis. To assess intra-observer reliability, the same radiographs were reviewed 3 months later by the same observers. At the time of the radiographic examination, the mean age of the 51 patients had been 54 years (range 18-82 years). A high correlation concerning the inter- and intra-observer reliability of both systems was demonstrated. Inter-observer reliability displayed a weighted kappa coefficient of 0.82 for the Crowe and 0.75 for the Hartofilakidis classification. Intra-observer reliability showed a kappa coefficient of 0.86 and 0.79, respectively. Both classification systems can be recommended to compare collectives of adult patients with congenital dysplasia of the hip. However, for future clinical practice, it would be advisable to agree on one universally accepted system as a standard in the literature.

References

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Citations

Oct 27, 2012·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Huiwu LiZhenan Zhu
Nov 7, 2007·International Orthopaedics·C K YiannakopoulosG Hartofilakidis
Aug 30, 2008·HSS Journal : the Musculoskeletal Journal of Hospital for Special Surgery·Alexander BrunnerRalf Decking
Aug 28, 2013·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Yanbo ZhangJincheng Wang
Oct 30, 2016·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Dror LaksteinOleg Safir
Sep 1, 2018·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Theofilos S Karachalios
Feb 22, 2008·Clinical Orthopaedics and Related Research·George HartofilakidisGeorge C Babis
Dec 20, 2018·Radiation Protection Dosimetry·Dejun ZhouShengwen Quan
May 3, 2008·The Journal of Bone and Joint Surgery. British Volume·C K YiannakopoulosG Hartofilakidis
May 4, 2010·The Journal of Bone and Joint Surgery. British Volume·G A MacherasS A Papadakis
May 29, 2019·Clinical Orthopaedics and Related Research·Jimmy Zhu, Navin D Fernando
Jul 3, 2010·The Journal of Bone and Joint Surgery. British Volume·T Karachalios, G Hartofilakidis
Mar 24, 2010·Clinical Orthopaedics and Related Research·Muhammad Umar Jawad, Sean P Scully
May 23, 2009·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Mark S GastonColin R Howie
May 8, 2007·Lancet·Carol Dezateux, Karen Rosendahl

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