A Cross Sectional Study to Assess the Agreement between Stevenson & Tanner-Whitehouse Method for Bone Age Estimation Sanjay Punuri1, Mada Prashanth2,*, Seetharamaiah Mynedi3, Gurram Surendar Reddy4 1Associate Professor, Forensic Medicine & Toxicology, Alluri Sitarama Raju Academy of Medical Sciences, Eluru, West Godavari, Andhra Pradesh 2Associate Professor, Forensic Medicine & Toxicology, Apollo Institute of Medical Sciences & Research, Apollo Health City Campus, Jubilee Hills, Hyderabad, Telangana 3Professor & HOD, Forensic Medicine & Toxicology, Alluri Sitarama Raju Academy of Medical Sciences, Eluru, West Godavari, Andhra Pradesh 4Professor & HOD, Forensic Medicine & Toxicology, Apollo Institute of Medical Sciences & Research, Apollo Health City Campus, Jubilee Hills, Hyderabad, Telangana *Corresponding author: Prashanth Mada, Associate Professor, Forensic Medicine & Toxicology, Apollo Institute of Medical Sciences & Research, Apollo Health City Campus, Jubilee Hills, Hyderabad-500096, Telangana
Online published on 17 July, 2019. Abstract Bone age is an indicator of the skeletal and biological maturity of an individual. This is different from chronological age. The TW2 method relies on the systematic evaluation of the maturity of all the bones in the hand and wrist and gives a more accurate estimation of age and reproducible, it is less frequently used as it is more complex and requires more time. Comparison of bone age estimated by Tanner Whitehouse (TW2 method) with Stevenson method in Indian population was undertaken in this study. 53 digital x-rays of left wrist joint antero-posterior view of males taken during 2016 to 2018 were included. Blinded expert estimated bone age using TW2 method and Stevenson method. Unblinded expert analyzed the demographic, physical and date of birth and then compared the agreement between age estimation calculated by the blinded forensic expert with the age calculation from date of birth with Bland Altman analysis. The mean bone age as estimated by TW2 method was 14 ±1.6 yrs. The mean lower limit (LL) of bone age estimated by Stevenson method was 14.2 ± 2.3yrs while the mean upper limit (UL) of bone age estimated was 16.2 ± 1.76 yrs. This study demonstrated that the bone age estimated by Tanner-Whitehouse method is in close agreement with birth age (chronological age) and also in acceptable agreement with LL of bone age estimated by Stevenson method. Top Keywords Tanner Whitehouse method, Stevenson Method, Bone age, Chronological age. Top |