Abstract
The lengths, external volumes and weights of 45 clean, dry, second metacarpals were determined. The midshaft total and medullary widths were measured on postero-anterior radiographs. The cortical volume, external volume and ash weight of a 1 cm length of the shaft of each bone were also measured. From the morphometric measurements estimators of the geometric and densitometric properties of the midshaft section and of the whole bone were computed. Some estimators of the geometric properties were derived on the assumption that the metacarpal shaft is a cylinder. The relationships between the estimators and the geometric and densitometric properties themselves were examined and the validity of the cylinder model was explored.
Résumé
Les longueurs, les volumes extérieurs et les poids de 45 seconds métacarpes, déssèchés et nettoyés, sont déterminés. Les largeurs totales et médullaires de la diaphyse sont mesurées sur des radiographies antéro-postérieurs. le volume cortical, le volume externe et le poids de cendres de la diaphyse, d'une longueur de 1 cm, sont aussi déterminés. A partir des mesures morphométriques, les estimations des propriétés géométriques et densitométriques de la diaphyse et de l'os total sont analysées. Quelques estimations des propriétés géométriques ont pu être étudiées en estiamnt que la diaphyse du métacarpe est un cylindre. Les rapports entre les estimations et les propriétés géométriques et densitométriques sont envisagés et l'exactitude d'un modèle cylindrique est évaluée.
Zusammenfassung
Länge, äußerer Umfang und Gewicht von 45 sauberen, trockenen zweiten Metacarpalknochen wurden bestimmt. Die totale Breite und die Markhöhlenbreite des mittleren Schaftes wurden mit posterior-anterioren Röntgenaufnahmen gemessen. Corticaler und äußerer Umfang und Aschgewicht eines 1 cm langen Stückes vom Schaft jedes Knochens wurden ebenfalls gemessen. Mittels morphometrischer Messungen wurden Schätzungen der geometrischen und densitometrischen Eigenschaften der Mittelschaftregion und des ganzen Knochens berechnet. Einige Schätzungen der geometrischen Eigenschaften wurden abgeleitet unter der Annahme, daß der metacarpale Schaft ein Zylinder ist. Die Beziehungen zwischen den Schätzungen und den geometrischen und densitometrischen Eigenschaften selbst wurden untersucht, und die Gültigkeit des Zylindermodelles wurde geprüft.
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References
Adams, P., Davies, G. T., Sweetnam, P. M.: Observer error and measurements of the metacarpal. Brit. J. Radiol.42, 192–197 (1969).
Adams, P., Davies, G. T., Sweetnam, P.: Osteoprosis and the effects of ageing on bone mass in elderly men and women. Quart. J. Med. New Series39, 601–615 (1970).
Alffram, P. A., Hernborg, J., Nilsson, B. E. R.: The influence of a high fluoride content in the drinking water on the bone mineral mass in man. Acta orthop. scand40, 137–142 (1969).
Anderson, J. B., Shimmins, J., Smith, D. A.: A new technique for the measurement of metacarpal density. Brit. J. Radiol.39, 443–450 (1966).
Barnett, E., Nordin, B. E. C.: The radiological diagnosis of osteoporosis. Clin. Radiol.11, 166–174 (1960).
Colbert, C., Mazess, R. B., Schmidt, P. B.: Bone mineral determinationin vitro by radiographic photodensitometry and direct photon absorptiometry. Invest. Radiol.5, 336–340 (1970).
Exton-Smith, A. N., Millard, P. H., Payne, P. R., Wheeler, Erica F.: Pattern of development and loss of bone with, age. Lancet1969 II, 1154–1157.
Frisancho, A. R., Newman, M. R., Baker, P.: Differences in stature and cortical thickness among highland Quechua Indian boys. Amer. J. clin., Nutr.23, 382–385 (1970).
Fujita, T., Orimo, H., Yoshikawa, M.: Changes in the cortical thickness and radiographic density of metacarpals according to age. J. Amer. Geriat. Soc.14, 350–357 (1966).
Garn, S. M., Hull, Ethel, I.: Taller individuals lose less bone as they grow older. Invest. Radiol.1, 255–256 (1966).
Garn, S. M., Rohmann, Christabel, G., Wagner, Betty: Bone loss as a general phenomenon in man. Fed. Proc.26, 1729–1736 (1967).
Gryfe, C. I., Exton-Smith, A. N., Payne, P. R., Wheeler, Erica, F.: Pattern of development of bone in childhood and adolescence. Lancet1971 I, 523–526.
Havivi, E., Reshef, A., Schwartz, A., Guggenheim, K., Bernstein, D. S., Hegsted, D. M., Stare, F. J.: Comparison of metacarpal bone loss with physical and chemical characteristics of vertebrae and ribs. Israel J. med. Sci.7, 1055–1062 (1971).
Helela, T.: Combined cortical thickness and cortical index in various age groups. Ann. clin. Res.2, 240–243 (1970).
Johnston, F. E., Malina, R. B.: Correlations of midshaft breadths and compact bone thickness among bones of the upper and lower extremities of children aged 6 to 16 years. Amer. J. Phys. Anthrop.32, 323–328 (1970).
Johnston, F. E., Watts, E. S.: Endosteal deposition of bone at the midshaft of the second metacarpals of adolescent females. Anat. Rec.163, 67–70 (1969).
Morgan, D. B., Spiers, F. W., Pulvertaft, C. N., Fourman, P.: The amount of bone in the metacarpal and the phalanx according to age and sex. Clin. Radiol.18, 101–108 (1967).
Nordin, B. E. C.: The relation between dietary calcium and osteoporosis in different parts of the world. Report to the Nutrition Section of the World Health Organization (1964).
Nordin, B. E. C.: Bone patterns in aging and osteoporosis. In: Methods of bone mineral measurement, p. 159–177, editors G. D. Whedon and J. R. Cameron, U.S. Department of Health, Education and Welfare, Washington 1970.
Nordin, B. E. C., Young, M. M., Bulusu, L., Horsman, A.: Osteoporosis reexamined. In: Osteoporosis, p. 47–67. Editor Uriel S. Barzel. New York: Grune & Stratton 1970.
Pridie, R. B.: The diagnosis of senile osteoporosis using a new bone density index. Brit. J. Radiol.40, 251–255 (1967).
Reshef, A., Schwartz, A., Ben-Menachem, Y., Menczel, J., Guggenheim, K.: Radiological osteoporosis: correlation with dietary and biochemical findings. J. Amer. Geriat. Soc.19, 391–402 (1971).
Smith, D. A., Harrison, I., Nordin, B. E. C., MacGregor, J., Jordan, M.: Mineral metabolism in relation to ageing. Proc. Nutr. Soc.27, 201–210 (1968).
Smith, R. W., Rizek, J.: Epidemiologic studies of osteoporosis in women of Puerto Rico and Southeastern Michigan with special reference to age, race, national origin and to other related or associated findings. Clin. Orthop.45, 31–48 (1962).
Virtama, P.: Variations in the ash contents of bones of the extremities. Ann. Med. exp. Fenn.38, 127–132 (1960).
Virtama, P., Telkka, A.: Cortical thickness as an estimate of mineral content of human humerus and femur. Brit. J. Radiol.35, 632–633 (1962).
Virtama, P., Kajanoja, P., Hopsu, V. K., Telkka, A.: Density of human carpal, metacarpal and digital bones. Ann. Med. exp. Fenn.38, 467–471 (1960).
Walker, A. R. P., Walker, B. F., Richardson, B. D., Christ, H. H.: Cortical thickness of bone in underprivileged populations. Amer. J. clin. Nutr.23, 244–245 (1970).
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Horsman, A., Kirby, P.A. Geometric properties of the second metacarpal. Calc. Tis Res. 10, 289–301 (1972). https://doi.org/10.1007/BF02012560
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DOI: https://doi.org/10.1007/BF02012560