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53212 - Condyle Construction in Hemifacial Microsomia

MBS service description:

Absent condyle and ascending ramus in hemifacial microsomia, construction of, not including harvesting of graft material (H) (Anaes.) (Assist.)
Schedule Fee:
1014.9
@85% Benefit Fee:
@75% Benefit Fee:
Last updated on
March 28, 2025

When is item code 53212 (Condyle Construction in Hemifacial Microsomia) typically used?

The need for construction of an absent condyle and ascending ramus in hemifacial microsomia arises when a patient with this congenital condition—characterized by unilateral underdevelopment of the mandible—lacks these critical TMJ components, causing facial asymmetry, chewing difficulties, and jaw dysfunction, requiring surgical creation under anesthesia with assistance in a hospital, excluding graft harvesting, to build a functional jaw joint and ramus. This procedure is indicated for severe cases of hemifacial microsomia, critical in the maxillofacial region where mandibular structure affects aesthetics and function.

Specific conditions driving this need include:

  • Congenital absence: Missing condyle and ramus on one side lead to a slanted jawline and limited mouth opening, necessitating construction to restore symmetry and motion.
  • Functional deficit: Inability to chew properly due to the absent TMJ components requires a new joint to improve masticatory function.
  • Facial asymmetry: Severe underdevelopment affects appearance and self-esteem, prompting surgical correction to align the face.
  • Growth impact: Early reconstruction can guide mandibular development, reducing secondary deformities like scoliosis of the jaw.

For example, a teenager with hemifacial microsomia might undergo this procedure to construct a condyle and ramus using pre-existing materials, improving bite and appearance, with the assistant aiding in precise joint shaping. In an aged care setting, an elderly patient with untreated microsomia could seek this for late-life function, adjusted for frailty and excluding graft harvest due to donor site concerns. By building the missing structures, this service restores jaw function, enhances facial symmetry, and improves quality of life, making it a specialized reconstructive solution within the maxillofacial framework.

Benefits to the patient

Restores jaw function, improves facial symmetry, and enhances quality of life.

Recovery considerations

Recovery of 6-8 weeks with swelling, jaw therapy, and bone adaptation; hospital stay required.

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