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Table 1 Summary of previous reported cases with laryngo-vertebral synostosis

From: Chronic dysphagia caused by Laryngo-vertebral Synostosis after anterior fusion for cervical spine trauma: a case report

Study (year)Age at the injurySexInjured vertebral levelSynostosisTreatment for spinal traumaInterval between trauma and dysphagiaPossible risk factors for synostosisTreatment for synostosisOutcome
Moses et al. (1997) [8]35MaleN/A (paralysis below C7/8)Thyroid-
C3 right anterior tubercle
Conservative (Halo traction)20 monthsMale sex, spinal cord injury, high-energy traumaSpeech therapy onlyModest improvement: aspiration free, reduced laryngeal elevation, delay in the pharyngeal phase.
Han et al. (2012) [9]57MaleC5–7Thyroid-
C5–7 right anterior tubercles
Conservative (neck collar)7 yearsMale sex, bony fragments between fused partsSurgical resectionExcellent
Okano et al. (presenting)22MaleC5–6Cricoid-
C5 right anterior tubercle
Surgical (ACDF)12 yearsYoung age, male sex, spinal cord injury, high-energy trauma, fracture-dislocation, prolonged waiting time for surgery, delayed rehabilitation, infectionSurgical resection/ omohyoid muscle flap interpositionExcellent
  1. N/A not applicable; ACDF anterior cervical decompression and fusion