Glenoid version in children.

Abstract

Computed tomographic scans and magnetic resonance images of 111 normal shoulders of children were reviewed to determine the normal glenoid version in the pediatric age population. Glenoid version varies with age in this population. The glenoid is most retroverted during the first 2 years of life (-6.3 +/- 6.5 degrees) and by the end of the first decade of life reaches adult glenoid version (-1.7 +/- 6.4 degrees). The difference between mean glenoid version in early life and mean glenoid version at the end of the first decade of life was statistically significant (p = 0.0013). Our value determined for adult glenoid version agrees with previous published data in the orthopedic and anthropologic literature. This study provides the normal baseline data for glenoid version in the pediatric age group.