Molina, MarceloPereira, MarianaKhek, PabloBallesteros, José Vicente2024-12-172024-12-172023-12-19Annals of Case Reports, Vol. 8, N° 6 (2023) p. 1-7.2574-7754http://hdl.handle.net/20.500.12254/4002Congenital kyphosis is an infrequent cause of kyphosis with a potential severe progressive deformity and neurological damage. There are few reports in the literature about congenital kyphosis focusing on adults. Case presentation: 24-year-old male with progressive dorsal pain, paresthesias, and numbness in his legs. Physical examination demonstrated a rigid kyphotic deformity with tenderness on the apex, neurologically intact. The diagnosis was a T10 butterfly posterior hemivertebra with segmental kyphosis of 48 degrees. The patient was treated surgically with a single posterior procedure, performing a complete T10 hemivertebrectomy and instrumented fixation from T8 to T12. The postoperative assessment demonstrated a segmental kyphosis of 14 degrees with 34º of correction, without surgical complications, and good functional results during 4 years of follow-up. Conclusion: Posterior-only hemivertebra resection is an effective procedure for treating congenital kyphosis, providing an excellent correction of the deformity with a good functional outcome. Intraoperative imaging tools, such as CT scans and navigation systems, can aid in performing the surgery and improve outcomes.enAtribución-NoComercial-CompartirIgual 3.0 Chile (CC BY-NC-SA 3.0 CL)AdulthoodCongenital kyphosisButterfly hemivertebraArticlehttps://orcid.org/0000-0002-7091-2633https://orcid.org/0000-0002-7269-3884https://doi.org/10.29011/2574-7754.101546