Inferior border of mandible is marked, along with site of fracture and anticipated location of incision
Incision begins through skin and subcutaneous tissue to the level of the platysma
Platysma is incised in a single layer
Once the platysma is incised, skin hooks are used to provide retraction and expose the underside of the platysma muscle
Dissection then proceeds toward the mandible in the plane just below the platysma muscle
The flap should include skin, subcutaneous tissue, and platysma
Once the platysma has been elevated to the level of the mandible, the submandibular gland can be exposed and facial vessels can be identified as in a standard Risdon approach
These steps, along with fracture reduction and hardware fixation, are made much easier due to increased access afforded by subplatysmal flap elevation
Hemostasis should be ensured prior to closure
Can apply a hemostatic agent as pictured
Platysma is reapproximated with resorbable sutures