title: Reliability of the Lisfranc injury radiological classification (Myerson-modified Hardcastle classification system).
abstract: OBJECTIVE
  The objective of our study was to assess the reliability of the radiological classification system (Myerson-modified Hardcastle Classification System) for Lisfranc injury. The classification system is a three-grade ordinal scale based on fracture displacement.
  
  
  METHODS
  Thirty-nine Lisfranc injury radiographs were evaluated by 38 independent observers consisting of consultant orthopaedic surgeons (18), orthopaedic surgery residents (17) and consultant musculoskeletal radiologists (3) on two separate occasions after receiving training in the use of the classification.
  
  
  RESULTS
  The intra- and inter-observer reliability was assessed using the intraclass correlation coefficient (ICC) and found to be excellent. The mean weighted intra- and inter-observer ICCs were 0.94 (95 % CI 0.89-0.97, p < 0.01) and 0.81 (95 % CI 0.68-0.89, p < 0.01), respectively.
  
  
  CONCLUSIONS
  The Myerson-modified Hardcastle classification system in our study was shown to be reliable and can be used in outcome studies and provide standard terminology among clinicians for Lisfranc injuries.
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar.
authors.forename: Shady
authors.initials: S
authors.lastname: Mahmoud
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar.
authors.forename: Faisal
authors.initials: F
authors.lastname: Hamad
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Riaz
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar.
authors.forename: Ghalib
authors.initials: G
authors.lastname: Ahmed
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Al Ateeq
authors.affiliation: Department of Orthopaedic Surgery, Hamad General Hospital, P.O. Box 3050, Doha, Qatar. tibrahim.ortho@gmail.com.
authors.forename: Talal
authors.initials: T
authors.lastname: Ibrahim
mesh_terms: D000328:Adult; D005260:Female; D018409:Foot Injuries / Q000145:classification* / Q000000981:diagnostic imaging*; D033023:Foot Joints / Q000000981:diagnostic imaging* / Q000293:injuries*; D006801:Humans; D007593:Joint Instability / Q000145:classification / Q000000981:diagnostic imaging; D008297:Male; D015588:Observer Variation; D011859:Radiography; D015203:Reproducibility of Results
keywords: Classification; Lisfranc injury; Radiology; Reliability