Pierre Robin Syndrome 
Airway Obstruction & Jaw Distraction

This syndrome was described in 1923 by Pierre Robin in which he described airway obstruction associated with glossoptosis and hypoplasia of the mandible. Today this syndrome is characterized by retrognathia or micrognathia, glossoptosis, and airway obstruction. An incomplete cleft of the palate is associated with the syndrome in approximately 50% of these patients. This is also known as Pierre Robin Sequence, Pierre Robin Anomaly, or Pierre Robin Anomalad.

In patients with micrognathia (small jaw) or retrognathia, the chin is posteriorly displaced causing the tongue to fall back toward the posterior pharyngeal wall. This results in obstruction of the airway on inspiration. Crying or straining by these children can often keep the airway open. However, when the child relaxes or falls asleep, airway obstruction occurs. Due to these respiratory problems, feeding may become very difficult. This can lead to a sequence of events: glossoptosis, airway obstruction, crying or straining with increased energy expenditure and decreased oral intake. This vicious cycle of events if untreated can lead to exhaustion, cardiac failure, and ultimately death.

 

Treatment of this syndrome can be divided into conservative therapy versus surgical intervention. The majority of these patients can be managed by placing the infant in the prone position until the adequate growth of the jaw occurs. This causes the jaw and the tongue to fall forward opening the airway. If this type of treatment fails the infant should then be considered for a bilateral distraction of the mandible to pull the tongue forward opening up the airway and avoiding a tracheostomy.

 

In children with severe underdevelopment of the lower jaw, this technique called mandibular bone distraction is now available. This technique also called distraction osteogenesis involves placement of an expansion device that is turned daily to slowly lengthen the jaw. An incision is required to make a surgical cut through the jaw bone with placement of an internal distractor with only a small arm exiting behind the ear that is used to turn the distractor. Once the amount of expansion of the bone has been obtained (3-4 weeks) the device is then kept in place until the bone gap heals with new bone formation (6-8 weeks). This technique can be performed in an infant which is a significant advantage over the traditional technique of lower jaw lengthening.

 

Modern 3D technology such as 3D models, virtual surgical planning, precise placement of distractors avoiding tooth roots has enhanced the successful use of this technique illustrated in the photos shown.

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American Society of Plastic Surgeons
American Society of Maxiofacial Surgeons
American Society For Aesthetic Plastic Surgery
American Society of Craniofacial Surger
International Society of Craniofacial Surgery
American Associatin of Plastic Surgeons

Sargent Craniofacial Surgery

2290 Ogletree Ave Suite 112

  Chattanooga, Tn 37421   

                423 305-7274                         Fax- 423 206-2826           

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