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Related Concept Videos

Muscles that Move the Head01:19

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The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
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Assessing Functional Recovery of Eupneic Diaphragm Activity Following Unilateral Cervical Spinal Cord Hemisection in Rats
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[Spinal accessory nerve functions after functional and lateral neck dissections: an electromyographic study].

Imdat Yüce1, Sedat Cağli, Emel Köseoğlu

  • 1Department of Otolaryngology, Medicine Faculty of Erciyes University, Kayseri, Turkey.

Kulak Burun Bogaz Ihtisas Dergisi : KBB = Journal of Ear, Nose, and Throat
|January 12, 2008
PubMed
Summary

Lateral neck dissection (LND) results in significantly less spinal accessory nerve (SAN) damage compared to functional neck dissection (FND) in patients with supraglottic larynx carcinoma. This finding highlights LND as a potentially safer surgical option for preserving nerve function.

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Area of Science:

  • Neurosurgery
  • Oncology
  • Electromyography

Context:

  • Supraglottic larynx carcinoma treatment often involves neck dissection.
  • Spinal accessory nerve (SAN) preservation is crucial for shoulder function.
  • Assessing neurogenic deficits post-dissection is essential for patient outcomes.

Purpose:

  • To compare electromyographic (EMG) findings of the SAN after functional neck dissection (FND) and lateral neck dissection (LND).
  • To evaluate the incidence and severity of neurogenic deficits in the sternocleidomastoid and trapezius muscles following these procedures.

Summary:

  • Electromyographic evaluation of SAN function was performed in 20 patients (10 FND, 10 LND) with N0 supraglottic larynx carcinoma.
  • Higher rates of neurogenic deficits were observed in the FND group (sternocleidomastoid: 53.3%, trapezius: 46.6%) compared to the LND group (both muscles: 10%).
  • A statistically significant difference (p<0.05) in SAN function was found between the FND and LND groups.

Impact:

  • Lateral neck dissection (LND) demonstrates a significantly lower risk of neurogenic damage to the SAN compared to functional neck dissection (FND).
  • These findings suggest LND may be preferable for preserving shoulder function in patients undergoing neck dissection for laryngeal cancer.
  • Provides evidence-based guidance for surgical technique selection to minimize iatrogenic nerve injury.