ESTIMATION OF SEX ON THE BASIS OF RADIOGRAPHS OF THE CALCANEUS

Lateral and anteroposterior radiographs of the ankles of 800 Central E uropeans aged 20 to 79 were analyzed with regard to sexual dimorphism. All the distances, but not the angles, of the calcaneus were much lar ger in males than in females. Approximately 80% of the study sample co uld be sexed correctly by classifying all specimens greater than 86.0 mm in length as male and those less than 86.0 mm as female. The preval ence of os tibiale externum was 8.0 and 2.6% and the prevalence of pla ntar heel spur was 16.3 and 6.5% (increasing with age) for males and f emales, respectively, being significantly mole frequent in females. On the other hand, the bone island frequencies were 9.1% in males and 4. 8%, in females. Our study suggests that radiographs of the ankle are a convenient, rapid, cheap and non-invasive means for estimating sex.