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Late-Onset Dysphagia From Hardware Migration After Anterior Cervical Discectomy and Fusion: An Unusual Cause and Review of Literature.
Post-operative dysphagia is the most common complication following anterior cervical discectomy and fusion (ACDF), with reports varying from 1% to 79%. We report a case of a 63-year-old female patient complaining of dysphagia presenting 9 years post surgery. The cause of dysphagia is often multifactorial with the true aetiology poorly understood. One potentially life-threatening cause of post-operative dysphagia is hardware migration associated with pharyngoesophageal perforation. This patient presents a unique case of a conservatively managed hardware migration with delayed onset dysphagia after 8 years of minimal symptoms. On further investigation, barium swallow identified a freely mobile screw in the oesophageal submucosa, rotating on swallowing. Retrieval of the screw was achieved transcervically with no visible perforation and resolution of dysphagia occurred 1 week post-operatively. Understanding the aetiology with early diagnosis and appropriate management of delayed hardware migration are paramount in reducing patient morbidity and potential life-threatening otolaryngologic complications.
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