Management of Recurrent Laryngeal Nerve Injury After Anterior Cervical Spine Surgery

Incidence and Presentation

• Recurrent laryngeal nerve paralysis occurs in 1.27% to 2.7% of anterior cervical spine surgeries, though laryngoscopy reveals a higher incidence with hoarseness affecting up to 50% of patients immediately after surgery 1, 2
• Symptoms typically include hoarseness, dysphagia, and in bilateral cases, potential airway compromise 1, 3

Diagnostic Approach

• Prompt otolaryngology consultation with flexible laryngoscopy is essential for any patient with postoperative hoarseness to confirm vocal cord paralysis 1, 2, 4
• Laryngoscopy should be performed both preoperatively and postoperatively in high-risk cases to document baseline vocal cord function 5

Management Algorithm

• For unilateral paralysis, initiate short course of corticosteroids, voice rest, hydration, and speech therapy referral for compensatory techniques 1, 2, 4
• For bilateral paralysis, immediate airway assessment and possible tracheostomy if respiratory distress is present, and ICU monitoring for respiratory compromise 4, 5
• Follow-up laryngoscopy at 4-6 weeks to assess recovery 1, 5
• Voice therapy continuation with focus on compensatory techniques 1, 2

Prevention Strategies

• Careful documentation of nerve identification and integrity in surgical reports 5

Prognosis

• Early diagnosis and management improve outcomes and quality of life 1, 2

Common Pitfalls to Avoid

• Delayed diagnosis can lead to delayed treatment and poorer outcomes 5
• Inadequate follow-up, patients require regular laryngoscopic examinations to monitor recovery 1, 5
• Focusing only on voice symptoms, dysphagia and aspiration risk should also be assessed and managed 1, 4