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Cortical remodeling data are affected by sampling location
Author(s) -
Pfeiffer Susan,
Lazenby Richard,
Chiang James
Publication year - 1995
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330960110
Subject(s) - sampling (signal processing) , anatomy , cortical bone , medicine , computer science , filter (signal processing) , computer vision
It has been argued that techniques for estimating adult ageat‐death from cortical histology are deleteriously affected by sampling location. This study uses nine complete femoral midshaft cross‐sections to test the effect of sampling site on measurement of a standard histological variable, percent remodeled bone. Circumferential periosteal fields from four anatomically defined locations (anterior, posterior, medial, lateral) and four mechanically defined locations (maximum and minimum moments of area) were evaluated. Locations deviating from the periosteal surface toward the endosteal surface were also compared. Significant differences were found for both location and field placement. The anatomical axes exhibited greater variability than the mechanical axes, in particular the anterior location, a standard sampling site for age‐at‐death estimation techniques. More endosteal fields tended to show elevated levels of percent remodeled bone. This study demonstrates that circumferential and radial sampling locations are important considerations in deriving and applying predictive equations based on cortical remodeling. © 1995 Wiley‐Liss, Inc.