This is a retrospective, observational single-center study. The studies is to investigate the incidence of posterior epidural spinal hematoma(PSEH) and recognize the risk factors for it in a cohort of patients undergoing posterior thoracic surgery in isolation.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Large local kyphosis angle
Timeframe: 6 months
High occupying ratio of cross-sectional area
Timeframe: 6 months
Cerebrospinal fluid leakage
Timeframe: 6 months