Fig. 4From: Morphological characteristics of the surgical neck region in the proximal humerus at different agesCortical change region parameters in different age groups. A Box plot of cortical thickness comparison in different groups. The results show a significant difference between the age groups 18–30 and 41–100 years. B The box plot of valid height in different groups. All results illustrate a significant difference between the age groups 18–30 and 31–60 yearsBack to article page