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The aim of the study was to investigate the influence of therapeutic modalities and sexual hormone levels on changes in bone mineral density (BMD) in testicular cancer (TC) survivors. In a cross-sectional descriptive, long-term follow-up study, a total of 1,249 long-term TC survivors were evaluated according to treatment modality: orchiectomy (OE) only, OE + chemotherapy (CT), or OE + radiotherapy (RT). Luteinizing hormone (LH), total testosterone (TST), marker of bone resorption (β-carboxyl-terminal cross-linking telopeptide of type I collagen—CTx), and BMD were evaluated. Standard statistical techniques were used to test the differences between groups of patients. TST decrease was observed in 46/313 TC survivors after OE alone, in 103/665 after OE + CT, and in 66/271 after OE + RT. LH increase was observed in 23/313 TC survivors after OE alone, in 154/665 after OE + CT, and in 43/271 after OE + RT. CTx increase was observed in 116/313 TC survivors after OE alone, in 324/665 after OE + CT, and in 82/271 after OE + RT. Osteopenia/osteoporosis occurred in 136/313 TC survivors after OE alone, in 298/665 after OE + CT, and in 139/271 after OE + RT. TC survivors after RT have statistically significant decreased TST levels, increased LH and nonsignificant worse BMD (osteopenia/osteoporosis) in comparison with TC survivors after OE alone or CT. TST decrease and LH increase were statistically significant, more frequently observed in patients with osteopenia/osteoporosis. Examination of TST is an important part of follow-up in TC survivors with bilateral as well as unilateral disease. The important part of standard examination algorithm should be also the osteological examination of TC survivors mainly in patients with androgen deficiency.

Testosterone Deficiency and Bone Metabolism Damage in Testicular Cancer Survivors