Correlation Between Living Stature and Ulna Length in MaharashtrianAdolescents Aged 1719 Years: A Cross-sectional Study

Background: When patients cannot stand or only partial remains are available, stature must be estimated from limb dimensions. The ulna is a practical choice because its bony landmarks are sub-cutaneous and its length stabilises by late adolescence. Objective: To derive sex-specific regression equations for predicting stature from percutaneous ulna length in Maharashtrian adolescents aged 1719 years. Methods: A cross-sectional study was conducted on 70 first-year MBBS students (40 males, 30 females) at Government Medical College, Dharashiv. Standing height was taken with a Harpenden stadiometer. Ulna lengtholecranon tip to ulnar styloidwas measured on both sides with a digital calliper; individual skin-fold thickness was deducted to approximate true bone length, and the two sides were averaged. Pearsons correlation quantified the heightulna relationship; ordinary least-squares regression generated prediction equations, which were internally validated by 1000-sample bootstrap resampling. Results: Boys averaged 165.9 4.4 cm in height and 27.28 1.10 cm in ulna length; girls averaged 155.4 3.9 cm and 24.79 1.02 cm, respectively (both p