The postoperative COFAS end-stage ankle arthritis classification system: interobserver and intraobserver reliability

Krause, Fabian G; Di Silvestro, Matthew; Penner, Murray J; Wing, Kevin J; Glazebrook, Mark A; Daniels, Timothy R; Lau, Johnny T C; Younger, Alastair S E (2012). The postoperative COFAS end-stage ankle arthritis classification system: interobserver and intraobserver reliability. Foot & ankle specialist - FAS, 5(1), pp. 31-6. Thousand Oaks, Calif.: Sage 10.1177/1938640011433051

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End-stage ankle arthritis is operatively treated with numerous designs of total ankle replacement and different techniques for ankle fusion. For superior comparison of these procedures, outcome research requires a classification system to stratify patients appropriately. A postoperative 4-type classification system was designed by 6 fellowship-trained foot and ankle surgeons. Four surgeons reviewed blinded patient profiles and radiographs on 2 occasions to determine the interobserver and intraobserver reliability of the classification. Excellent interobserver reliability (κ = .89) and intraobserver reproducibility (κ = .87) were demonstrated for the postoperative classification system. In conclusion, the postoperative Canadian Orthopaedic Foot and Ankle Society (COFAS) end-stage ankle arthritis classification system appears to be a valid tool to evaluate the outcome of patients operated for end-stage ankle arthritis.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Orthopaedic, Plastic and Hand Surgery (DOPH) > Clinic of Orthopaedic Surgery

UniBE Contributor:

Krause, Fabian

ISSN:

1938-7636

Publisher:

Sage

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:35

Last Modified:

05 Dec 2022 14:11

Publisher DOI:

10.1177/1938640011433051

PubMed ID:

22267865

URI:

https://boris.unibe.ch/id/eprint/14164 (FactScience: 221018)

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