Earlier studies on growth and estimation of age from fetal bones were analyzed from photographs, radiographs, ultrasonographs and bones from chemically preserved fetuses. The earlier findings might not be applicable when information about growth and age estimation are sought from the naturally macerated fetal bones. The present study was undertaken in the Department of Anatomy, BJ Medical College, Pune, India with the aim to study the growth of fetal radius and also to estimate the CRL (crown-rump length) and CHL (crown-heel length) of fetuses based on osteometry on fetal radius. A natural process of maceration technique was adopted to prepare the bones. Osteometry was taken directly on fetal radius. CRL and CHL were taken from fresh fetuses. There were seven osteometric measurements (five measurements were newly introduced) taken on 912 fetal radii (right and left) from 456 fetuses (244 males and 212 females) from Indian population. The fetuses had the age range between 11 weeks to 40 weeks of intrauterine life. It was observed that 8.04% showed significant side differences and 12.5% showed significant sex differences based on the osteometry. There was positive growth trend found in fetal radius on the basis all the osteometric measurements. The Maximum Length of Radius (r-ml) showed the fastest rate of growth in females during weeks 11 to 16 of intrauterine life. For every 1 mm in the CRL, the r-ml was increased by .235 mm. Regression equations were calculated to estimate the CRL and CHL from the osteometry done on fetal radius. Growth study of the fetal radius has its anatomical significance. Age estimation is a crucial factor in dealing with forensic and archaeological anthropology.
Dhason Simon1, Don Varghese2, Annie Varghese3, Biswajit Bhowmick4, Monie Simon5
1 College of Health Sciences, Arsi University, Asella, Ethiopia
2 Specialist Oral and Maxillofacial Surgeon, Saudi German Hospital, Dubai, UA
3 IBN SINA Medical Centre, Dubai, UAE
4 Senior Medical Officer, Army Medical Core, India
5 Chellaram Hospital (Diabetes Care & Multispeciality), Pune - 411021, India