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J Musculoskelet Neuronal Interact ; 21(3): 429-433, 2021 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-34465683

RESUMEN

Although, both bisphosphonates and denosumab are effective in reducing the risk of skeletal-related events in patients with metastatic bone disease, many concerns were being raised about the possible association between their use and atypical femoral fractures. A case of an atypical femoral fracture in a metastatic bone disease patient, six months after discontinuation of long-term zoledronic acid therapy and sequential treatment with denosumab is reported. After extensive laboratory and imaging examination, the fracture was classified as atypical and it was finally treated with discontinuation of denosumab, long cephalomedullary interlocking nailing and vitamin D administration. Sequential treatment with bisphosphonates and denosumab in patients with metastatic bone disease, may lead to an overlapping treatment effect, increasing bone suppression and the risk of atypical femoral fracture. In addition, discontinuation of denosumab may activate bone remodeling units in an area with microdamage accumulation in cortical bone caused by the previous bone suppression from the antiresorptive treatment. The activation of bone remodeling units may accelerate the occurrence of the atypical femoral fractures.


Asunto(s)
Conservadores de la Densidad Ósea , Enfermedades Óseas , Fracturas del Fémur , Denosumab , Difosfonatos/efectos adversos , Fracturas del Fémur/diagnóstico por imagen , Humanos
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