Clarification is needed regarding the definitions and classification of groove and hollowness of the infraorbital region depending on the cause, anatomical characteristics, and appearance. Grooves in the infraorbital region can be classified as nasojugal grooves (or folds), tear trough deformities, and palpebromalar grooves; these can be differentiated based on anatomical characteristics. They are caused by the herniation of intraorbital fat, atrophy of the skin and subcutaneous fat, contraction of the orbital part of the orbicularis oculi muscle or squinting, and malar bone resorption. Safe and successful treatment requires an optimal choice of filler and treatment method. The choice between a cannula and needle depends on various factors; a needle is better for injections into a subdermal area in a relatively safe plane, while a cannula is recommended for avoiding vascular compromise when injecting filler into a deep fat layer and releasing fibrotic ligamentous structures. The injection of a soft-tissue filler into the subcutaneous fat tissue is recommended for treating mild indentations around the orbital rim and nasojugal region. Reducing the tethering effect of ligamentous structures by undermining using a cannula prior to the filler injection is recommended for treating relatively deep and fine indentations. The treatment of mild prolapse of the intraorbital septal fat or broad flattening of the infraorbital region can be improved by restoring the volume deficiency using a relatively firm filler.
Atrophy ; Catheters ; Classification ; Congenital Abnormalities ; Dermal Fillers ; Eyelids ; Ligaments ; Methods ; Needles ; Orbit ; Prolapse ; Skin ; Skin Aging ; Strabismus ; Subcutaneous Fat ; Subcutaneous Tissue ; Tears ; Zygoma

OBJECTIVE: To evaluate the craniofacial asymmetry in adults with neglected congenital muscular torticollis (CMT) by quantitative assessment based on craniofacial three-dimensional computed tomography (3D-CT). METHODS: Preoperative craniofacial asymmetry was measured by 3D-CT for 31 CMT subjects > or =18 years of age who visited a tertiary medical center and underwent 3D-CT between January 2009 and December 2013. The relationship between the age and the severity of craniofacial asymmetry was analyzed in reference to anteroposterior length asymmetry of the frontal bone and zygomatic arch, vertical and lateral displacements of the facial landmarks, and mandibular axis rotation. RESULTS: The age at CT was 27.71+/-7.02 years (range, 18-44 years). All intra-class correlation coefficients were higher than 0.7, suggesting good inter-rater reliability (p<0.05) of all the measurements. The frontal and the zygomatic length ratio (i.e., the anteroposterior length asymmetry on the axial plane) was 1.06+/-0.03 and 1.07+/-0.03, respectively, which was increased significantly with age in the linear regression analysis (r2=0.176, p=0.019 and r2=0.188, p=0.015, respectively). The vertical or lateral displacement of the facial landmarks and rotation of the mandibular axis did not significantly correlate with age (p>0.05). CONCLUSION: Craniofacial asymmetry of neglected CMT became more severe with age in terms of anteroposterior length asymmetry of the ipsilateral frontal bone and zygomatic arch on the axial plane even after growth cessation. This finding may enhance the understanding of therapeutic strategies for craniofacial asymmetry in adults with neglected CMT.
Adult* ; Axis, Cervical Vertebra ; Craniofacial Abnormalities ; Facial Asymmetry ; Frontal Bone ; Humans ; Linear Models ; Torticollis* ; Zygoma

BACKGROUND: The zygoma is a major portion of the midfacial contour. When deformity occurs in this area, a reduction should be conducted to correct it. If a sagittal fracture at the temporal root of the zygomatic arch occurs, this also requires reduction, but it is difficult to approach due to its anatomical location, and the possibility of fixation is also limited. Thus, the authors attempted the reduction of sagittal fracture by two- or three-point fixation and the Gillies approach without direct manipulation. The preoperative and postoperative results of the patients were evaluated. Follow-up was performed to establish a treatment guideline. METHODS: A retrospective study was done with 40 patients who had sagittal fractures at the temporal root of the zygomatic arch from March 2009 to June 2012. Only two- or three-point fixation was performed for the accompanying zygomatic-orbital-maxillary fracture. The Gillies approach was used for complex fractures of the zygomatic arch, while the temporal root of the zygomatic arch was only observed without reduction. Preoperative and postoperative computed tomography and X-ray scans were performed to examine the results. RESULTS: The result of the paired t-test on preoperative and postoperative bone gap differences, the depression level, and the degree of temporal protrusion showed a marked decrease in the mean difference at a 95% confidence interval. The results were acceptable. CONCLUSIONS: In the treatment of sagittal fractures at the temporal root of the zygomatic arch, it is acceptable to use indirect reduction and non-fixation methods. This leads to a satisfactory aesthetic and functional outcome.
Congenital Abnormalities ; Depression ; Facial Asymmetry ; Follow-Up Studies ; Humans ; Retrospective Studies ; Zygoma ; Zygomatic Fractures

Treacher Collins syndrome (TCS) is the most common and well known mandibulofacial dysostosis with characteristic clinical features including downward slanting of palpebral fissures, coloboma of the lower eyelid, hypoplastic zygomatic arches, micrognathia, macrostomia, microtia, and other deformities of the ears. TCS is caused by mutations in at least 3 genes involved in pre-rRNA transcription: TCOF1, POLR1D and POLR1C. We experienced a 1-day-old female infant with characteristic clinical features of TCS. A novel, heterozygotic mutation within the TCOF1 gene (c.3874_3875insG, p.Ala1292Glyfs*30) was identified to cause a premature stop codon.
Codon, Nonsense ; Coloboma ; Congenital Abnormalities ; Ear ; Exons* ; Eyelids ; Female ; Humans ; Infant ; Infant, Newborn* ; Macrostomia ; Mandibulofacial Dysostosis* ; RNA Precursors ; Zygoma

BACKGROUND: Patients who have undergone enucleation during infancy due to retinoblastoma can develop microorbitalism due to the decreased growth stimulation from the eyeball and the surrounding soft tissues. Anatomically, the orbit consist of parts of the frontal bone superiorly, the maxilla inferiorly, the ethmoid bone medially, and the zygoma laterally. Considering the possibility of surgically expanding the orbit using tripod osteotomy, in this study we conducted tripod osteotomy on adult patients with microorbitalism of retinoblastoma. METHODS: Tripod osteotomy was conducted to expand the orbital volume in adult patients with microorbitalism due to enucleation in infancy for retinoblastoma. The orbital volume was measured using the Aquarius Workstation ver. 4.3.6 and the orbit width was measured with preoperative and postoperative 3-dimensional facial bone computed tomography (CT) imaging. Preoperative and postoperative photographs were used to visualize the difference produced by the surgery. RESULTS: The orbital volume of the affected side was 10.3 cm3 before and 12.5 cm3 after the surgery, showing an average increase in volume of 2.2 cm3 (21.4%). The increase in the obital width was confirmed by the preoperative and postoperative 3-dimensional facial CT images and aesthetic improvement was observed by the preoperative and postoperative photographs. CONCLUSIONS: Tripod osteotomy, which realigns the orbital bone, zygoma, and maxilla, is used to correct posttraumatic malunion as well as non-traumatic congenital abnormalities such as that seen in facial cleft. We applied this procedure in microorbitalism secondary to enucleation for retinoblastoma to allow orbital expansion and correct asymmetry.
Adult ; Congenital Abnormalities ; Ethmoid Bone ; Facial Bones ; Frontal Bone ; Humans ; Maxilla ; Orbit ; Osteotomy ; Retinoblastoma ; Zygoma

PURPOSE: Brown's syndrome is characterized by the limited elevation in adduction from mechanical causes around the superior oblique tendon trochlea complex. In this particular case, post-traumatic facial deformity accompanied by Brown's syndrome was observed. We would like to report the satisfying cosmetic results obtained by reconstructing orbital roof and superior orbital rim and repositioning of zygoma. METHODS: A 12-year-old patient was observed with facial deformity with strabismus in her right eye and orbital dystopia after the car accident and was eventually diagnosed with traumatic Brown's syndrome. Reconstructive surgeries could not be performed at the time of trauma due to the cerebral hemorrhage. At the second year after the trauma, a depressed fracture of the right orbital roof and superior orbital rim were reconstructed via the intracranial approach, and orbital dystopia was corrected via the zygoma triple ostectomy. In addition, a strabismus surgery was performed one year after her plastic surgery. RESULTS: Facial deformity with orbital dystopia and strabismus was confirmed to be fully reconstructed after the surgery. Moreover, when the patient came in for a follow-up thirteen years after the operation, a developmental imbalance of the facial bones, diplopia, or any other surgical complications were not to be found. CONCLUSION: After the trauma, the patient with Brown's Syndrome accompanied by post-traumatic facial deformity, who went under the corrective surgeries after the meticulous examination and assessment pre-surgically, was able to acquire cosmetic satisfaction via those operations.
Cerebral Hemorrhage ; Child ; Congenital Abnormalities ; Cosmetics ; Diplopia ; Eye ; Facial Bones ; Follow-Up Studies ; Humans ; Orbit ; Porphyrins ; Strabismus ; Surgery, Plastic ; Tendons ; Zygoma

Since maxillofacial injury is frequently accompanied by other diseases, its evaluation and treatment are open delayed. When the evaluation is delayed, the surgical treatment can be difficult or impossible. A 21-yr-old man presented with right facial swelling and deformity after injury. We planned immediate surgical repair for his right tetrapod fracture, but the operation was delayed for two months due to severe hyperthyroidism. During the operation, we reducted and fixed the deviated bone after refracture of the zygomatic arch with an osteotome to achieve mobility. The facial deformity and difficulty in mouth opening were improved after the operation. Even in the presence of accompanying fractures, early evaluation and proper management can prevent complications and achieve acceptable cosmetic outcomes in maxillofacial trauma patients. In patients with malunion of fracture sites, fixation after refracture using an osteotome can be a good treatment option for obtaining good mobility.
Congenital Abnormalities ; Cosmetics ; Facial Injuries ; Fracture Fixation ; Humans ; Hyperthyroidism ; Maxillofacial Injuries ; Mouth ; Zygoma

Pneumosinus dilatans is defined as an abnormal enlargement of paranasal sinuses containing only air. The frontal sinus is most commonly affected, but the maxillary sinus is rare. The surgical aims of pneumosinus dilatans are to re-establish a permanent pressure equilibrium in the involved sinus and to correct possible facial deformity. Generally, pneumosinus dilatans of maxillay sinus is corrected by ostectomy of anterior wall of maxillary sinus and repositioning of removed bony fragment. Despite correction of anterior facial contour asymmetry, asymmetry of facial width remains to be a problem. Therefore, the authors present a technique for correction of pneumosinus dilatans of maxillary sinus by segmental zygoma ostectomy and maxilloplasty. A 16-year-old girl with a slowly enlarging mass in the right side of the face was referred to our department. No history of sinusitis, nasal obstruction or facial trauma were noted. CT scan presented an abnormal enlargement of right maxillary sinus. Surgery was delayed for 2 years until maturation of facial bone. Surgical correction was accomplished through circumferential osteotomy with repositioning of maxillary segment and segmental zygoma ostectomy. Postoperatively, the patient's facial contour was improved with equal malar height and width and no significant complication was noted.
Adolescent ; Congenital Abnormalities ; Facial Bones ; Frontal Sinus ; Humans ; Maxillary Sinus ; Nasal Obstruction ; Osteotomy ; Paranasal Sinus Diseases ; Paranasal Sinuses ; Sinusitis ; Zygoma

Treacher Collins Syndrome (TCS) is an autosomal dominant genetic disorder which is resulted from the mutation that affect the Treacher Collins-Franceschetti syndrome 1 (TCOF1) gene on chromosome 5. The features of patients affected by this syndrome are characterized by depression of the malar bones, an antimongoloid slant of the palpebral fissures, coloboma of the lower lids, mandibular hypoplasia with retrognathia and deformities of the ear structures. The airway obstruction is frequently caused by mandibular hypoplasia. This may necessitate the placement of a tracheostomy for airway patency after the birth. We experienced a tracheostomy for an infant with respiratory difficulty associated airway obstruction.
Airway Management ; Airway Obstruction ; Chromosomes, Human, Pair 5 ; Coloboma ; Congenital Abnormalities ; Depression ; Ear ; Humans ; Infant ; Mandibulofacial Dysostosis ; Parturition ; Retrognathia ; Tracheostomy ; Zygoma

PURPOSE: Intraosseous hemangiomas are rare and account for fewer than 1% of all bone tumors. The site that is most commonly involved are the vertebral column and the skull. Within the facial skeleton, hemangiomas can occur in the mandible, maxilla, the nasal bones, and rarely the zygoma. METHODS: We report a case of an intraosseous hemangioma of the zygoma in a 49-year-old male. The patient had a slow growing hard mass in the left zygoma, which had been present for 8 years. Other than the cosmetic deformity, the patient experienced no pain and did not have any problem. He had no history of trauma in that area and no ocular symptoms. Preoperative computed tomography showed a trabeculated mass arising from the body of the left zygoma. The mass was surgically removed without having to reconstruct the bone defect by spairing the inner cortex. RESULTS: Histopatholgical examination indicated a cavernous hemangioma. After 4 months of follow up, no functional and cosmetic impairment was identified. The patient was satisfied with the result. CONCLUSION: An intraosseous hemangioma of the zygoma can be treated with total surgical excision with preservation of the inner cortex, thus eliminating the need for reconstruction of bone defect.
Congenital Abnormalities ; Cosmetics ; Follow-Up Studies ; Hemangioma ; Hemangioma, Cavernous ; Humans ; Male ; Mandible ; Maxilla ; Middle Aged ; Nasal Bone ; Skeleton ; Skull ; Spine ; Zygoma