PMID: 1211223Nov 1, 1975Paper

Biostatics of the tibial shaft

Acta Morphologica Neerlando-Scandinavica
A E Ljunggren

Abstract

In all, 56 tibiae from Lapps and 56 tibiae from Norwegians have been studied. These ethnic groups represent different weight bearing situations. Only measurements referring to the diaphysis are presented. The bones are studied in the AP and ML planes and at different transverse sections. The material is analyzed statistically. The distribution form is examined. Chiefly positive skewness occurs. Platykurtosis is found twice as often as leptokurtosis. A differentiated pattern of distribution seems to be the case regarding measurements in the lower extremities. This corresponds to the influence of variable hereditary and external factors. Divergencies from standard normal distribution is compared with differences between groups. In some cases differences are influenced by platykurtosis and skewness. Divergence from standard normal distribution could not be traced back to measuring errors, special features of the bone or special sex characteristics. The divergencies are not supposed to affect the results to any noteworthy extent. Female Lapps show small variances, female Norwegians great variances. In linear variables Lapps generally show smaller values than Norwegians, females smaller values than males. Regarding linear measuremen...Continue Reading

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