Craniofacial changes in unilateral microtia: I. An anthropometric study
Smahel, Z.; Horák, I.
Journal of Craniofacial Genetics and Developmental Biology 4(1): 7-16
1984
ISSN/ISBN: 0270-4145 PMID: 6736223 Document Number: 223910
Anthropological studies were carried out in 100 adult men with microtia. Craniofacial changes were assessed in 45 selected males ranging in age from 20-42 yr and affected by right-sided microtia of the 3rd degree. Results showed the extent of facial involvement in unilateral severe microtia and the type of the changes. They were expressed quantitatively in terms of metrical values. The defect was a typically lateral anomaly with decreased height-depth dimensions of the affected side of the face, while the facial width dimensions and the height dimensions in the median plane were unchanged. The hemihypoplasia was most marked in the distal part of the face and increased towards the octocephalic center. The dimensions of the reconstructed earlobe corresponded on the average to the contralateral lobe, though there were some individual differences and the lobe was inclined anteriorly. Anomalies of the normal earlobe occurred in 27% of individuals examined, and consisted most frequently of lobe protrusion (16%). Associated anomalies of cervical vertebrae were recorded in 13% and a familial occurrence of microtia in 4%. Body growth was not affected in these patients.