What is traumatic telecanthus?
What is traumatic telecanthus?
Traumatic telecanthus is the result of facial injuries due to either the medial canthal tendon being lacerated or avulsed from its bony attachments around the lacrimal crest or displacement of the nasoorbital component following a nasoorbitoethmoidal fracture.
What causes telecanthus?
Congenital disorders such as Down syndrome, fetal alcohol syndrome, cri du chat syndrome, Klinefelter syndrome, Turner syndrome, Ehlers–Danlos syndrome, Waardenburg syndrome often present with prominent epicanthal folds, and if these folds are nasal (as they most commonly are) they will cause telecanthus.
How do I know if I have telecanthus?
Telecanthus is produced by an abnormal insertion or length of the medial canthal tendons. The distance between the inner canthi can be determined by the “rule of fifths,” in which the face is divided sagittally into five equal parts between the two helices.
What is normal space between eyes?
PUPILLARY DISTANCE (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses and should be as accurate as possible. The average adult’s PD is between 54-74 mm; kids’ are between 43-58 mm.
How do you fix a broken Noe?
The most common access for reduction of NOE fractures includes a combination of surgical approaches, that include a coronal, lower eyelid transcutaneous, lower eyelid tranconjunctival, and a maxillary vestibular incision.
How is a Noe fracture diagnosed?
Accurate diagnosis and prompt surgical treatment of NOE fractures are critical to avoid complications and to obtain an aesthetic surgical result. Thin-cut (1.5 mm) axial and coronal (when available) computed tomography (CT) scans are the criterion standard for the diagnosis of NOE fractures.
What kind of congenital disorders can cause telecanthus?
Congenital disorders such as Down syndrome, fetal alcohol syndrome, cri du chat syndrome, Klinefelter syndrome, Turner syndrome, Ehlers–Danlos syndrome, Waardenburg syndrome often present with prominent epicanthal folds, and if these folds are nasal (as they most commonly are) they will cause telecanthus.
How is a traumatic telecanthus a facial injury?
Traumatic telecanthus is the result of facial injuries due to either the medial canthal tendon being lacerated or avulsed from its bony attachments around the lacrimal crest or displacement of the nasoorbital component following a nasoorbitoethmoidal fracture.
What kind of palpebral anomaly is telecanthus?
Telecanthus is a palpebral anomaly that can be defined as an increased distance between the medial canthi. It may be unilateral or bilateral. Isolated telecanthus is rare. It may be seen as a finding in blepharophimosis syndrome, canthus inversus, or Waardenburg syndrome in association with epicanthal folds and overlapping of the caruncles.
What kind of surgery is needed for telecanthus?
The treatment of telecanthus involves shortening and refixation of the medial canthal tendons to the anterior lacrimal crest, or insertion of a trans-nasal suture. It is well known that the treatment is difficult due to recurrence by loosening of tendon.
How do you check telecanthus?
What is Transnasal Canthopexy?
Abstract. Medial canthopexy is a permanent and stable fixation of the internal canthus and its elements in an anatomical position. Transnasal canthopexy is difficult to perform. The specific material includes two square pins, a large and a small one, plus material to explore the lachrymal duct.
What is hyper Telorism?
The term hypertelorism means an increased distance between two body parts.[1] Greg applied it for the eyes and termed it as “ocular hypertelorism” in 1924 to signify widely placed eyes.[2] He used interpupillary distance (IPD) to record its presence.
How do you test for hypertelorism?
Diagnosis is by both a clinical assessment of the child and imaging of the bones of the skull, most commonly a CT scan. This will allow accurate measurements of the bones that make up the orbit, and to see whether there is an ongoing cause for the hypertelorism that needs early treatment.
What is an NOE fracture?
The nasoorbitoethmoidal (NOE) fracture refers to injuries involving the area of confluence of the nose, orbit, ethmoids, the base of the frontal sinus, and the floor of the anterior cranial base. The area includes the insertion of the medial canthal tendon(s).
What is Canthopexy surgery?
A canthopexy is a minor surgical procedure that strengthens and stabilizes the lateral canthal tendon and surrounding internal structures of the lower eyelid. This surgical procedure repositions the outside corner of the eye where the lids meet, restoring a youthful, uplifted eye.
Can hypertelorism be normal?
In this condition the distance between the inner eye corners as well as the distance between the pupils is greater than normal….
| Hypertelorism | |
|---|---|
| Specialty | Medical genetics |
What is the cause of Traumatic Telecanthus on the face?
Traumatic telecanthus is the result of facial injuries due to either the medial canthal tendon being lacerated or avulsed from its bony attachments around the lacrimal crest or displacement of the nasoorbital component following a nasoorbitoethmoidal (NOE) fracture ( Fig. 51-3 ).
What are the long-term complications of telecanthus?
Long-term complications of NOE fractures such as persistent telecanthus, enophthalmos, saddle nose deformity, and airway obstruction occur due to failure to recognize fracture patterns, failure to anatomically reduce fracture segments, and undercorrection (Fig. 1.11.16 ). Common mistakes and their sequelae are listed in Table 1.11.2.
How is the transnasal wire used to correct telecanthus?
Telecanthus is corrected by resecting the middle portion of the MCT and suturing the ends together. A transnasal wire, which draws the MCTs toward the midline, may be indicated in hypetelorism, and in severe cases of telecanthus, where medial canthal bone requires removal in addition to medial canthal soft tissue.
