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Article Dans Une Revue International Journal of Osteoarchaeology Année : 2013

Recording Specific Entheseal Changes of Fibrocartilaginous Entheses: Initial Tests Using the Coimbra Method

Résumé

A working group was established in 2009 during a workshop in Coimbra, Portugal to review the various methodologies used to record entheseal changes (EC) and develop a standardised system to facilitate comparisons across studies. This paper presents the fi rst results of the Coimbra method, a new qualitative method for recording fi brocartilaginous entheses based on the types of changes observed. Materials and methods: The new method divides the enthesis into a margin (only the area opposite the acute angle of fi bre attachment) and surface (which also includes the remaining margin). Five features are recorded: bone formation, erosion, fi ne porosity, macro-porosity and cavitation. A total of 67 male ske- letons from the identi fi ed SIMON collection, Geneva, Switzerland, all of whom were manual workers and aged between 20 and 79years, were used for this study. Six skeletons were used by the authors as exem- plars to determine standard criteria for recording each change. Thirty male skeletons were selected to test intra-observer and inter-observer error of the new method. An additional 31 skeletons were used for a pre- liminary test of the relationship between EC and age, using exploratory statistics and ordinal regression. Results: Intra-observer and inter-observer error had a similar percentage agreement of around 70%. The exploratory statistics indicated a general trend for increased scores of each feature with age, but ordinal regression demonstrated that this was not statistically signi fi cant ( p < 0.05) for all features. Discussion: The recording method is repeatable for some entheses. The effect of the ageing process is dependent on enthesis and EC feature. Unlike most methods, the Coimbra method records EC features in detail; this has the advantage of allowing studies of the relationship between different EC and age as well as sex and occupation. Further studies on larger identi fi ed skeletal collections are needed to test the effect of age, sex and occupation.
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Dates et versions

hal-01068328 , version 1 (20-09-2023)

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C.Y. Henderson, Valentina Mariotti, D. Pany-Kucera, Sébastien Villotte, C. Wilczak. Recording Specific Entheseal Changes of Fibrocartilaginous Entheses: Initial Tests Using the Coimbra Method. International Journal of Osteoarchaeology, 2013, 23 (2), pp.152 - 162. ⟨10.1002/oa.2287⟩. ⟨hal-01068328⟩
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