Introduction: We herein describe a case of delayed union of a lumbar spine fracture in a 70-year-old patient with diffuse idiopathic skeletal hyperostosis (DISH).
Clinical course and result: Because he decided not to undergo surgical treatment, we provided conservative treatment with teriparatide (TPTD). Union was obtained in 2 months, and no adverse events were observed during treatment. Six months after starting the TPTD, further bone formation was observed and the lumbar instability had resolved.
Conclusion: This is the first report of successful use of TPTD to treat delayed union of a spine fracture in a patient with DISH without surgical intervention.