observed after castration or androgen deprivation therapy
[13]. Furthermore, studies have shown that bone structural
parameters (e.g., bone microarchitecture, cortical and trabecular bone mineral density) are impaired in men with
hypogonadism [14]. A placebo-controlled study including
108 elderly men with mean testosterone levels of 12.8
nmol/l found no overall effect of a 3-year testosterone replacement therapy on bone density. However, a significant
treatment effect with increased lumbar spine bone density
was observed in elderly men with low pre-treatment
testosterone levels (testosterone