Suja, R S (2006) Estimation of stature from the bony markers of proximal end of ulna. Masters thesis, Christian Medical College, Vellore.
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Abstract
Anthropometry is the study of the measurements of the human body in terms of the dimensions of bone, muscle and adipose tissue. Anthropometric techniques commonly used by anthropologists and adopted by medical scientists have been employed to estimate body size for over hundred years. Interest in reconstructing stature from skeletal remains dates back to the early 1800s. Human limb bones have been used for the estimation of stature in the field of forensic medicine since the 19th century. Stature was reconstructed, using the regression formulae for long bones, described by Trotter and Gleser, 1952; Stevenson, 1929; Breitinger, 1938;Telkka, 1950; Dupertuis and Hadden,1951; Keen, 1953; Genoves, 1967; Trotter and Gleser, 1977. Populations, on which these equations were based, included European-Caucasian, American-Caucasian, African-American, African, Meso-American and a heterogeneous group of Mongolians. The determination of sex and the estimation of stature from bones play an important role in identifying bodies and skeletal remains. Useful information for the estimation of stature can be obtained from sources besides the length of the long bones of the limbs. Bony markers of proximal femur such as neck-shaft angle, neck length, intertrochanteric apical axis length and vertical diameter of the head were used for reconstructing the length of the femur (Prasad et al., 1996). It was noted that none of these workers reported the use of fragmentary remains of the ulna for the estimation of stature. This may be due to the fact that the length of the ulna contributes a less accurate estimation of stature than the length of other long bones. However, in the absence of adequate remains it is worthwhile to have such an estimate rather than totally ignoring the burnt or broken fragments of the ulna when an estimate is required. OBJECTIVES: To measure bony markers at the proximal end of the ulna and to correlate these markers with its length for formulating equations to estimate length of the ulna and stature in south Indian population. METHODS: The present study deals with the computation of linear regression formulae for reconstruction of ulnar length and stature from bony fragments of upper end of the ulna. A total of 110 ulnae (right-63, left-47) were measured for this purpose. Fourteen markers at the proximal ends of 110 dry ulnae were measured with vernier calipers. Length of the ulnae was measured with osteometric board. Forty-five (45) radiographs of forearm showing both ends of ulnae of thirty (30) individuals were taken. Four markers from the proximal end of radiographs and the length of the ulnae were measured with a measuring scale. Stature of these individuals was measured with measuring rod. Statistical method Independent t-test, Regression analysis, Pearson correlation test, and stepwise method were used for this study. All analyses were carried out using SPSS version 11.5. RESULT: The data revealed non-significant bilateral variation in the measurements of the ulna. Regression equations were formulated for the estimation of length of the ulna from bony markers. Multiple linear regression equations were constructed using the stepwise method. It was shown that a single dimension for right side, the distance between the tip of the olecranon process posteriorly and the anterior-most point on the radial notch can estimate the stature of an unknown person with great accuracy. Regression equation for finding out height from the length of the ulna was also derived from radiographs of 30 individuals.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | Estimation of stature; bony markers; proximal; ulna. |
| Subjects: | MEDICAL > Anatomy |
| Depositing User: | Kambaraman B |
| Date Deposited: | 22 Jun 2017 05:22 |
| Last Modified: | 22 Jun 2017 06:26 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/211 |
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