The coronal or bi-temporal approach is used to expose the anterior cranial vault, the forehead, and the upper and middle regions of the facial skeleton. The extent and position of the incision, as well as the layer of dissection, depends on the particular surgical procedure and the anatomic area of interest.
Where is the coronal scalp?
Prior descriptions of the coronal scalp flap include an incision just behind the hairline with the lateral components of the approach created in the pre-auricular areas: the hairline of the patient being a primary consideration in the placement of the incision for the flap.
Where is the temporal nerve located?
The frontal (or temporal) branch of the facial nerve is a motor nerve that innervates the frontalis and portions of the orbicularis oculi, corrugator supercilii, and procerus muscles. It traverses the superficial fat pad above the superficial temporal fascia toward the lateral brow.
What is Gillies approach?
Temporal (Gillies) approach – Skin incision The Gillies technique describes a temporal incision (2 cm in length), made 2.5 cm superior and anterior to the helix, within the hairline. A temporal incision is made. Care is taken to avoid the superficial temporal artery.
What is the coronal structure?
The coronal suture is a dense and fibrous association of connection tissue located in between the frontal and parietal bones of the skull. At birth, the sutures decrease in size (molding) and allow the skull to become smaller. In children, the suture enables the skull to expand with the rapidly growing brain.
What is a Bicoronal flap?
The bicoronal flap was first described by Hartley and Kenyon (neurosurgeons) to gain access to the anterior cranium in 1907. It extension as an access flap to the upper and lateral aspect of the face was pioneered by Tessier (1971). Esthetically, it is pleasing as the surgical scar is hidden within the hair.
What nerve is in the forehead?
The ophthalmic branch of the trigeminal nerve, the supraorbital nerve, divides at the orbital rim into two parts in the forehead. One part, the superficial division, runs over the surface of the occipitofrontalis muscle. This provides sensation for the skin of the forehead, and for the front edge of the scalp.
What is the frontal nerve?
The frontal nerve enters the orbit through the superior orbital fissure, above the muscles of the eyeball, and passes anterior on the levator palpebrae superioris. It exits the orbit at the medial end of the supraorbital margin. It innervates the forehead and also the upper eyelid.
What is Zygomaticomaxillary complex?
The zygomaticomaxillary complex (ZMC) plays a key role in the structure, function, and aesthetic appearance of the facial skeleton. It provides normal cheek contour and separates the orbital contents from the temporal fossa and the maxillary sinus.
How is a zygomatic fracture treated?
Most zygomatic complex fractures can be treated solely by an intraoral approach and rigid fixation at the zygomaticomaxillary buttress. Further exposure of the zygomaticofrontal junction or inferior orbital rim is necessary for severely displaced fractures, which require additional fixation.
Where is the coronal?
The coronal suture is oblique in direction and extends between the frontal and the parietal bones. The term is derived from the Latin word “corona” and from the Ancient Greek word “korone,” both translating to “garland” or “crown,” referring to the anatomical location where a crown would be placed.
Is coronal and frontal suture the same?
The coronal suture is the cranial suture formed between the two parietal bones and the frontal bone. At the junction of coronal, sagittal and frontal sutures is the anterior fontanelle which is open at birth and usually fuses at around 18-24 months after birth.
