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Correspondence between theoretical models and dual energy X‐ray absorptiometry measurements of femoral cross‐sectional growth during adolescence
Author(s) -
van der Meulen Marjolein C. H.,
Marcus Robert,
Bachrach Laura K.,
Carter Dennis R.
Publication year - 1997
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100150323
Subject(s) - femur , bone mineral content , dual energy , bone mass , diaphysis , dual energy x ray absorptiometry , cross section (physics) , bone mineral , anatomy , orthodontics , medicine , physics , surgery , osteoporosis , quantum mechanics
We have developed an analytical model of long bone cross‐sectional ontogeny in which appositional growth of the diaphysis is primarily driven by mechanical stimuli associated with increasing body mass during growth and development. In this study, our goal was to compare theoretical predictions of femoral diaphyseal structure from this model with measurements of femoral bone mineral and geometry by dual energy x‐ray absorptiometry. Measurements of mid‐diaphyseal femoral geometry and structure were made previously in 101 Caucasian adolescents and young adults 9–26 years of age. The data on measured bone mineral content and calculated section modulus were compared with the results of our analytical model of cross‐sectional development of the human femur over the same age range. Both bone mineral content and section modulus showed good correspondence with experimental measurements when the relationships with age and body mass were examined. Strong linear relationships were evident for both parameters when examined as a function of body mass.