How is congenital unilateral lower lip palsy (CULLP) treated?

Updated: Jan 07, 2019
  • Author: Alan D Bruns, MD, FACS; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Several options are specific to CULLP. Most parents do not notice any defect except when the child is crying; therefore, surgical intervention in the isolated CULLP deformity is rarely indicated. Surgical procedures to weaken the nonaffected side with selective marginal mandibular neurectomy or botulinum toxin injections provide symmetry at rest. Other plastic-reconstructive options include wedge resection and fascia lata sling or cheiloplasty, plication or transposition of the orbicularis oris muscle, and digastric muscle transfer.

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