Estimation of Maximum Tibia Length from its Measured Anthropometric Parameters in a Nigerian Population

Reliable estimation of stature from skeletal remains will continue to play an important role in assessing a variety of forensic anthropological and archaeological issues.In the present study,we studied and collated data on the morphometry of the tibia as well as analyzing its segment that shows significant correlation with its maximum length and consequently formulating linear regression equations for estimating maximum tibia length(MTL)which is specific for the Nigeria population.A total number of 68 intact adult human tibia bones were used(35 right and 33 left).Thirteen anthropometric parameters were measured including the MTL.The mean differences between right and left bones of all the measured parameter were not statistically significant except for the mean shaft circumference.The correlation coefficient between MTL and the bicondylar tibial width(BTW),anterior‑posterior intercondylar diameter(APID),anterior‑posterior diameter of medial condyle(APDMC),midshaft transverse diameter(MSTD),and distal articular surface length(DASL)were seen to be significant(P<0.05)only in the right tibia;therefore,the linear regression equations for estimation of MTL from these parameters for the right tibia were also significant(P<0.05).The results of our study concluded that it is possible to estimate the maximum length of the right tibia from the BTW,APID,APDMC,MSTD,and DASL with relative accuracy.Our study may be useful for forensic investigations for the identification of the remains of unknown bodies in a Nigerian population.

Estimation of Stature from Percutaneous Tibia Length of Indigenes of Bekwara Ethnic Group of Cross River State, Nigeria

Estimating stature by developing linear regression equations which incorporate the features of fragmented body parts or human skeletal remains has been employed by many forensic anthropologists to establish the identity of victims of mass disaster although all formulas are ethnic,age,and gender specific.The study is aimed at using the percutaneous tibia length(PCTL)to deriving a specific regression equation formula which could be used to estimate the stature of adult indigenes of Bekwara ethnic group in Cross River State.A total number of 600 subjects within the age range of 21–45 years were recruited randomly for this research(300 males and 300 females).Observed height and PCTL were measured using the standard anthropometric technique,respectively.Stature was estimated from PCTL using simple regression analysis.On analysis of the data,the mean PCTL for male was found to be 43.60±2.31 cm while that of female was 42.55±2.83 cm.The observed height was 165.80±6.88 cm and 156.70±6.06 cm for male and female,respectively.Statistical analysis showed that the male values of the measured parameters were significantly higher than the corresponding female values.The linear regression equations derived for male and female for the estimation of height using the PCTL was found to be 5.289(PCTL)+(−64.78)and 4.230(TL)+(−23.28),respectively.It was concluded that stature can be estimated using the length of an intact mutilated leg.Thus,the data of this study are recommended in anthropological studies for stature estimation among the ethnic group under study.