Prevalence of Bilateral Asymmetry of Tibial Bones Length in MBBS Students of A Medical College

Abstract

Introduction: A wide variability of bilateral asymmetry in human has been observed within the population. However sufficient attention has not been given to the difference present in the limbs especially the tibial bones. It is generally assumed that the both limbs of the individual are with insignificant differences. The objective of the study is to find the prevalence of bilateral asymmetry of the tibial bone length of the same individual and distribution in between the two genders. Methods: This descriptive cross-sectional study was conducted on 150 students of Kathmandu Medical College and Teaching Hospital after obtaining ethical approval. Simple Random Sampling technique was used. The right and the left tibial length were recorded for different genders Results: Bilateral asymmetry in the tibial bone length was observed in 66 (44%) [41.58%- 46.42% at 95% CI] of the subjects which was recorded more in males 98 (65.15%) than in females. The minimum and maximum differences between the tibial length present was 0.1mm and 0.8 mm respectively with a mean of 0.2136 mm. Among the three age groups, tibial length asymmetry was observed highest 67 (45.56%) in Group B (20-22 years). Asymmetry in length was seen more in the right tibia with male preponderance over female. Conclusions: Asymmetry in the tibial bones length should be given proper attention and proper diagnosis and treatment of leg discrepancies should be done.

Keywords

• bilateral asymmetry; tibial length.