Voice Surgery and Microlaryngoscopy: Treatment of Vocal Cord Lesions

Clinical categories of vocal cord lesions: nodules (bilateral, related to vocal abuse), polyps (usually unilateral, from acute trauma or chronic irritation), cysts (mucus retention or epidermoid), sulcus vocalis (mucosal cleft), Reinke oedema (smoking + voice strain), contact granuloma, papillomatosis (HPV-related), pre-malignant dysplasia.

Clinical history: duration of hoarseness (acute <2 weeks, subacute 2-6 weeks, chronic >6 weeks), triggers (continuous talking, shouting), occupation (teacher, call-centre, singer), comorbidities (reflux, smoking, alcohol, allergy), vocal fatigue pattern. This forms the critical foundation for diagnosis.

Diagnostic gold standard: office flexible videolaryngoscopy plus stroboscopy. Stroboscopy assesses the mucosal wave — telling whether the lesion is superficial or deep and what structural change affects voice quality. Acoustic analysis (jitter, shimmer, HNR) gives objective documentation. Related service: our laryngology and voice surgery unit.

Stroboscopy is not only diagnostic but a planning tool. Lesions with preserved mucosal wave (small nodules, small polyps) are removed conservatively. Absent mucosal wave indicates deeper invasion and may require more aggressive resection or a different technique.

Patient selection: 70-80% of nodules regress with voice therapy, so the first step is therapy, not surgery. After 8-12 weeks of intensive voice therapy, surgery is planned if symptoms persist. Polyps respond to therapy as adjunct but rarely alone — surgery is usually needed. Cysts always require surgery; voice therapy is adjuvant for symptom management.

Lifestyle modification: stop smoking (the only curative step for Reinke oedema), reflux control (PPI 8-12 weeks), generous hydration (mucosal lubrication), vocal hygiene training. These matter both before and after surgery. Continued smoking compromises surgical outcomes.

After general anaesthesia, a small-bore endotracheal tube (commonly 5.5-6.0 mm) is placed — maximising the view of the vocal cords. In some cases jet ventilation (tubeless, intermittent high-frequency breathing) is used, leaving the view completely clear.

A rigid laryngoscope is positioned via the mouth to expose the larynx and cords. The scope is suspended on a holder or support arm. The operator positions the microscope (8x-25x magnification) or a high-resolution endoscope; the microscope is preferred for two-handed work.

Micro-instruments: small forceps, scissors, mucosal dissectors, cautery. Cold dissection is the default — minimal thermal damage, best preservation of mucosal wave. The lesion is carefully excised from the mucosa; vibratory mucosa (lamina propria surface) is preserved.

Cold dissection is the first choice for all benign vocal cord lesions. Mucosal wave and vibratory voice quality are best preserved — there is no thermal damage. Nodules, polyps, cysts, sulcus vocalis and contact granulomas are usually removed with cold instruments.

The KTP laser (532 nm) is selectively absorbed by haemoglobin — ideal for superficial vascular lesions (ectasia, haemorrhagic polyp) and papillomatosis. Mucosal-wave preservation is good and coagulation is superficial. The CO2 laser (10.6 µm) gives higher thermal effect; used for wide excision and pre-malignant lesion removal but mucosal-wave preservation is less optimal.

For Reinke oedema the classic approach is a superior-surface microflap — aspiration of the oedematous content, then re-laying the mucosa. This classic technique uses cold instruments. Some centres use KTP laser with aspiration.

Laser advantages: bloodless field, speed, micro-precision. Disadvantages: thermal spread, smoke (operator / staff exposure, dedicated extraction needed), cost. The decision is per case. Step-by-step details: vocal cord page.

Absolute post-op voice rest is 7-14 days. "Complete silence" — no speech, no whispering, minimised coughing and laughter. Whispering, contrary to popular belief, strains the vocal cords more than soft speech and is not recommended.

Patients communicate in writing (pen and paper, messaging). Avoid phone use; if unavoidable, very short sentences. Eating and drinking are normal. Mild throat discomfort lasts 3-5 days; pain is usually mild, managed with simple analgesics.

Gradual return to speech begins after the rest period (week 2 — 30-60 minutes daily, week 3 — 2-3 hours, week 4 — normal). Throughout, the speech-language pathologist guides vocal hygiene, correct phonation, posture and breathing exercises.

The purpose of voice therapy is to correct the cause of surgery (e.g. break the abuse → nodule cycle). Removing the lesion alone is insufficient — without behaviour change, recurrence is likely. The surgeon and SLP follow up jointly.

Polyps: surgical success over 95% — cold dissection alone suffices. Voice quality is largely restored at 6-8 weeks. Recurrence under 5% unless underlying abuse continues.

Nodules: voice improves post-op but, without behaviour change, recurrence is 20-30% (especially in heavy voice users). For this reason surgery without voice therapy is generally not advised.

Cysts: surgery is the only treatment. Success 85-90%; sometimes complete clearance is not achieved in one session and revision is needed. Voice quality depends on the degree of mucosal disturbance.

Reinke oedema: post-op voice deepening (in female patients) may not fully resolve — a residual masculine voice can persist. Pre-operative counselling is essential. With continued smoking 100% recurrence is expected.

Papillomatosis: a viral disease that recurs repeatedly like VZV reactivation. A single surgery is rarely enough — 5-15 sessions per year may be needed. Adjuvants (intralesional cidofovir, bevacizumab) are used in some cases. HPV vaccination is preventively important.

General anaesthesia risk: standard surgical anaesthesia risks plus difficult intubation in some patients (short neck, limited mouth opening, narrow mandible), tracheal trauma. Total serious anaesthesia complications under 0.1% in modern practice.

Surgery-specific risks: post-op voice worse than expected (mucosal wave failing to return — 2-5%), transient tongue / palate-tip numbness from pressure (5-10%, resolves in weeks), dental injury (1-2% — particularly the front teeth, from laryngoscope positioning), TMJ subluxation (very rare).

Expectation management: not every patient expects a "singer-quality" voice afterwards, but a smooth, natural, non-fatiguing voice matched to their age and gender. Very rarely, the pre-op voice can be better than the post-op voice — especially in professional voice users, pre-op discussion is critical.

Additional considerations for vocalists / singers: voice is a highly specific professional tool. Voice therapy is tried first if at all possible; surgery is reserved for absolute need and performed with the most conservative technique. Concert / recording schedule is considered in timing (at least 3 months out-of-performance window). Related reading: our second opinion service.