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Jae Il LEE ; Seok Joo KANG ; Seong Pin JEON ; Hook SUN

Archives of Craniofacial Surgery.2016;17(3):162-164. doi:10.7181/acfs.2016.17.3.162

Stafne bone cavity is a rare mandibular defect that was first reported by Edward C. Stafne in 1942. It commonly presents with a well-demarcated, asymptomatic, unilateral radiolucency that indicates lingual invagination of the cortical bone. A 52-year-old female patient who with nasal bone fracture, visited the hospital. During facial bone computed tomography (CT) for facial area evaluation, a well-shaped cystic lesion was accidentally detected on the right side of the mandible. Compared to the left side, no swelling or deformity was observed in the right side of the oral lesion, and no signs of deformity caused by mucosal inflammation. 3D CT scans, and mandible series x-rays were performed, which showed a well-ossified radiolucent oval lesion. Axial CT image revealed a cortical defect containing soft tissue lesion, which has similar density as the submandibular gland on the lingual surface of the mandible. The fact that Stafne cavity is completely surrounded by the bone is the evidence to support the hypothesis that embryonic salivary gland is entrapped by the bone. In most cases, Stafne bone cavity does not require surgical treatment. We believe that the mechanical pressure from the salivary gland could have caused the defect.
Bone Cysts ; Congenital Abnormalities ; Facial Bones ; Female ; Humans ; Inflammation ; Mandible* ; Middle Aged ; Nasal Bone ; Salivary Glands ; Submandibular Gland ; Tomography, X-Ray Computed

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Primary Cutaneous Mucinous Carcinoma Treated with Narrow Surgical Margin.

Jin Hee CHOI ; Seung Chan KIM ; Jiye KIM ; Yoon Kyu CHUNG

Archives of Craniofacial Surgery.2016;17(3):158-161. doi:10.7181/acfs.2016.17.3.158

Primary cutaneous mucinous carcinoma (PCMC) is a rare malignant tumor of eccrine origin. Clinically, the carcinoma presents as a solitary, slow growing, and painless nodule. For this reason, this tumor is often considered to be a benign mass in the preoperative setting. The lesion is, however, malignant in nature and has a tendency for local recurrence and infrequent metastasis. Wide local excision is the treatment of choice. However, few reports exist with information regarding surgical margins and clinical outcomes. Herein, we report a case of PCMC excised with a narrow surgical margin and review the relevant literature. A 49-year-old man presented with a small cutaneous nodule of the right cheek. The mass was excised without any margin, but pathologic examination revealed histology of mucinous carcinoma. Because of this, the operative site was re-excised with a 5-mm margin, and the wound was closed using a V-Y advancement flap. Systemic work-up did not reveal other potential metastatic primary, for a final diagnosis of PCMC. We report this case of PCMC, treated with relatively narrow margin in a patient with good prognostic factors.
Adenocarcinoma ; Adenocarcinoma, Mucinous* ; Cheek ; Diagnosis ; Humans ; Middle Aged ; Mucins* ; Neoplasm Metastasis ; Recurrence ; Wounds and Injuries

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Transient Anisocoria during Medial Blowout Fracture Surgery.

Jae Il LEE ; Seok Joo KANG ; Seong Pin JEON ; Hook SUN

Archives of Craniofacial Surgery.2016;17(3):154-157. doi:10.7181/acfs.2016.17.3.154

Transient anisocoria is rare during blowout fracture reconstruction. We report a case of transient anisocoria occurring during medial blowout fracture reconstruction and review the relevant literature. A 54-year-old woman was struck in the face and was admitted for a medial blowout fracture of the left eye. During the operation, persistent bleeding occurred. To control this bleeding, a 1% lidocaine solution with 1:200,000 epinephrine was applied to the orbital wall with cotton pledgets. In total, 40 mL of local anesthetic was used for the duration of the operation. After approximately three hours of the surgery, the ipsilateral pupil was observed to be dilated, with sluggish response to light. By 3 hours after the operation, the mydriasis had resolved with normal light reflex. In conclusion, neurological and ophthalmologic evaluation must be performed prior to blowout fracture surgery. Preoperative ophthalmic evaluation is simple and essential in ruling out any preexisting neurologic condition. Moreover, surgeons must be aware of the fact that excessive injection of lidocaine with epinephrine for hemostasis during orbital wall surgery can result in intraoperative anisocoria. Anisocoria-related situations must be addressed in a proficient manner through sufficient understanding of the mechanism controlling the pupillary response to various stimuli.
Anisocoria* ; Epinephrine ; Female ; Hemorrhage ; Hemostasis ; Humans ; Lidocaine ; Middle Aged ; Mydriasis ; Orbit ; Pupil ; Reflex ; Surgeons

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Application of Rapid Prototyping Technique and Intraoperative Navigation System for the Repair and Reconstruction of Orbital Wall Fractures.

Jong Hyun CHA ; Yong Hae LEE ; Wan Chul RUY ; Young ROE ; Myung Ho MOON ; Sung Gyun JUNG

Archives of Craniofacial Surgery.2016;17(3):146-153. doi:10.7181/acfs.2016.17.3.146

BACKGROUND: Restoring the orbital cavity in large blow out fractures is a challenge for surgeons due to the anatomical complexity. This study evaluated the clinical outcomes and orbital volume after orbital wall fracture repair using a rapid prototyping (RP) technique and intraoperative navigation system. METHODS: This prospective study was conducted on the medical records and radiology records of 12 patients who had undergone a unilateral blow out fracture reconstruction using a RP technique and an intraoperative navigation system from November 2014 to March 2015. The surgical results were assessed by an ophthalmic examination and a comparison of the preoperative and postoperative orbital volume ratio (OVR) values. RESULTS: All patients had a successful treatment outcome without complications. Volumetric analysis revealed a significant decrease in the mean OVR from 1.0952±0.0662 (ranging from 0.9917 to 1.2509) preoperatively to 0.9942±0.0427 (ranging from 0.9394 to 1.0680) postoperatively. CONCLUSION: The application of a RP technique for the repair of orbital wall fractures is a useful tool that may help improve the clinical outcomes by understanding the individual anatomy, determining the operability, and restoring the orbital cavity volume through optimal implant positioning along with an intraoperative navigation system.
Computer Simulation ; Humans ; Medical Records ; Orbit* ; Orbital Fractures ; Prospective Studies ; Surgeons ; Treatment Outcome

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The Clinical Analysis of the Nasal Septal Cartilage by Measurement Using Computed Tomography.

So Min HWANG ; On LIM ; Min Kyu HWANG ; Min Wook KIM ; Jong Seo LEE

Archives of Craniofacial Surgery.2016;17(3):140-145. doi:10.7181/acfs.2016.17.3.140

BACKGROUND: The nasal septal cartilage is often used as a donor graft in rhinoplasty operations but can vary widely in size across the patient population. As such, preoperative estimation of the cartilaginous area is important for patient counseling as well as operating planning. We aim to estimate septal cartilage area by using facial computed tomography (CT) studies. METHODS: The study was performed using facial CT images taken from 200 patients between January 2012 to July 2015. Using the mid-sagittal image, the boundary of cartilaginous septum was delineated from soft tissue using the mean difference in signal intensity (or brightness). The area within this boundary was calculated. The calculated area for septal cartilage was then compared across age groups and sexes. RESULTS: Overall, the mean area of nasal septal cartilage was 8.18 cm² with the maximum of 12.42 cm² and the minimum of 4.89 cm². The cartilage areas were measured to be larger in men than in women (p<0.05). The area decreased with advancing age (p<0.05). CONCLUSION: Measuring the size of septal cartilage using brightness difference is more precise and reliable than previously reported methods. This method can be utilized as the standard for prevention of postoperative complication.
Cartilage* ; Counseling ; Female ; Humans ; Male ; Methods ; Nasal Cartilages ; Postoperative Complications ; Rhinoplasty ; Tissue Donors ; Transplants

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The Efficacy of Bioabsorbable Mesh in Craniofacial Trauma Surgery.

Won Chul CHOI ; Hyun Gon CHOI ; Jee Nam KIM ; Myung Cheol LEE ; Dong Hyeok SHIN ; Soon Heum KIM ; Cheol Keun KIM ; Dong In JO

Archives of Craniofacial Surgery.2016;17(3):135-139. doi:10.7181/acfs.2016.17.3.135

BACKGROUND: The ultimate goal of craniofacial reconstructive surgery is to achieve the most complete restoration of facial functions. A bioabsorbable fixation system which does not need secondary operation for implant removal has been developed in the last decade. The purpose of this study is to share the experience of authors and to demonstrate the efficacy of bioabsorbable mesh in a variety of craniofacial trauma operations. METHODS: Between October 2008 and February 2015, bioabsorbable meshes were used to reconstruct various types of craniofacial bone fractures in 611 patients. Any displaced bone fragments were detached from the fracture site and fixed to the mesh. The resulting bone-mesh complex was designed and molded into an appropriate shape by the immersion in warm saline. The mesh was molded once again under simultaneous warm saline irrigation and suction. RESULTS: In all patients, contour deformities were restored completely, and bone segments were fixed properly. The authors found that the bioabsorbable mesh provided rigid fixation without any evidence of integrity loss on postoperative computed tomography scans. CONCLUSION: Because bioabsorbable meshes are more flexible than bioabsorbable plates, they can be molded and could easily reconstruct the facial bone in three dimensions. Additionally, it is easy to attach bone fragments to the mesh. Bioabsorbable mesh and screws is effective and can be easily applied for fixation in various craniofacial trauma reconstructive scenarios.
Absorbable Implants ; Congenital Abnormalities ; Facial Bones ; Fracture Fixation, Internal ; Fractures, Bone ; Fungi ; Humans ; Immersion ; Maxillary Fractures ; Orbital Fractures ; Suction ; Zygomatic Fractures

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Ocular Complications in Assault-Related Blowout Fracture.

Woong Kyu CHOI ; Young Joon KIM ; Sang Hyun NAM ; Young Woong CHOI

Archives of Craniofacial Surgery.2016;17(3):128-134. doi:10.7181/acfs.2016.17.3.128

BACKGROUND: Blowout fracture is one of the most common facial fractures, and patients usually present with accompanying ocular complications. Many studies have looked into the frequency of persistent ocular symptoms, but there is no study on assault patients and related ocular symptoms. We evaluated the incidence of residual ocular symptoms in blow-out fractures between assaulted and non-assaulted patients, and sought to identify any connection among the degree of enophthalmos, defect size, and assault-related injury. METHODS: A retrospective review was performed for any patient who sustained a unilateral blowout fracture between January 2010 to December 2014. The collected data included information such as age, gender, etiology, and clinical ocular symptoms as examined by an ophthalmologist. This data was analyzed between patients who were injured through physical altercation and patients who were injured through other means. RESULTS: The review identified a total of 182 patients. Out of these, 74 patients (40.7%) have been struck by a fist, whereas 108 patients (59.3%) have sustained non-assault related injuries. The average age was 36.1 years, and there was a male predominance in both groups (70 patients [94.6%] in the assaulted group and 87 patients [80.6%] in the non-assault group). Diplopia and enophthalmos were more frequent in patients with assault history than in non-assaulted patients (p <0.05). Preoperatively, 25 patients (33.8%) with assault history showed diplopia, whereas 20 patients (18.5%) showed diplopia in the non-assaulted group (p <0.05). Preoperative enophthalmos was present in 34 patients (45.9%) with assault history, whereas 31 patients (28.7%) showed enophthalmos in the non-assaulted group (p <0.05). CONCLUSION: Patients with an assault history due to a fist blow experienced preoperative symptoms more frequently than did patients with non-assault-related trauma history. Preoperative diplopia and enophthalmos occurred at a higher rate for patients who were assaulted. Surgeons should take into account such characteristics in the management of assaulted patients.
Diplopia ; Enophthalmos ; Humans ; Incidence ; Male ; Orbital Fractures ; Retrospective Studies ; Surgeons ; Violence

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Transconjuctival Incision with Lateral Paracanthal Extension for Corrective Osteotomy of Malunioned Zygoma.

Jae Ho CHUNG ; Hi Jin YOU ; Na Hyun HWANG ; Deok Woo KIM ; Eul Sik YOON

Archives of Craniofacial Surgery.2016;17(3):119-127. doi:10.7181/acfs.2016.17.3.119

BACKGROUND: Conventional correction of malunioned zygoma requires complete regional exposure through a bicoronal flap combined with a lower eyelid incision and an upper buccal sulcus incision. However, there are many potential complications following bicoronal incisions, such as infection, hematoma, alopecia, scarring and nerve injury. We have adopted a zygomaticofrontal suture osteotomy technique using transconjunctival incision with lateral paracanthal extension. We performed a retrospective review of clinical cases underwent correction of malunioned zygoma with the approach to evaluate outcomes following this method. METHODS: Between June 2009 and September 2015, corrective osteotomies were performed in 14 patients with malunioned zygoma by a single surgeon. All 14 patients received both upper gingivobuccal and transconjunctival incisions with lateral paracanthal extension. The mean interval from injury to operation was 16 months (range, 12 months to 4 years), and the mean follow-up was 1 year (range, 4 months to 3 years). RESULTS: Our surgical approach technique allowed excellent access to the infraorbital rim, orbital floor, zygomaticofrontal suture and anterior surface of the maxilla. Of the 14 patients, only 1 patient suffered a complication—oral wound dehiscence. Among the 6 patients who received infraorbital nerve decompression, numbness was gradually relieved in 4 patients. Two patients continued to experience persistent numbness. CONCLUSION: Transconjunctival incision with lateral paracanthal extension combined with upper gingivobuccal sulcus incision offers excellent exposure of the zygoma-orbit complex, and could be a valid alternative to the bicoronal approach for osteotomy of malunioned zygoma.
Alopecia ; Cicatrix ; Conjunctiva ; Decompression ; Eyelids ; Follow-Up Studies ; Hematoma ; Humans ; Hypesthesia ; Maxilla ; Methods ; Orbit ; Osteotomy* ; Retrospective Studies ; Sutures ; Wounds and Injuries ; Zygoma* ; Zygomatic Fractures

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Orbital Floor Fracture.

Hyo Seong KIM ; Eui Cheol JEONG

Archives of Craniofacial Surgery.2016;17(3):111-118. doi:10.7181/acfs.2016.17.3.111

The medial wall and floor of the bony orbit are frequently fractured because of the delicate anatomy. To optimize functional and aesthetic results, reconstructive surgeons should understand the anatomy and pathophysiology of orbital fractures. Appropriate treatment involves optimal timing of intervention, proper indications for operative repair, incision and dissection, release of herniated tissue, implant material and placement, and wound closure. The following review will discuss the management of orbital floor fractures, with the operative method preferred by the author. Special considerations in operation technique and the complication are also present in this article.
Methods ; Orbit* ; Orbital Fractures ; Surgeons ; Wounds and Injuries

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Secondary Reconstruction of Frontal Sinus Fracture.

Yang Woo KIM ; Dong Hun LEE ; Young Woo CHEON

Archives of Craniofacial Surgery.2016;17(3):103-110. doi:10.7181/acfs.2016.17.3.103

Fractures of frontal sinus account for 5%–12% of all fractures of facial skeleton. Inadequately treated frontal sinus injuries may result in malposition of sinus structures, as well as subsequent distortion of the overlying soft tissue. Such inappropriate treatment can result in aesthetic complaints (contour deformity) as well as medical complications (recurrent sinusitis, mucocele or mucopyocele, osteomyelitis of the frontal bone, meningitis, encephalitis, brain abscess or thrombosis of the cavernous sinus) with potentially fatal outcomes. Frontal contour deformity warrants surgical intervention. Although deformities should be corrected by the deficiency in tissue type, skin and soft tissue correction is considered better choice than bone surgery because of minimal invasiveness. Development of infection in the postoperative period requires all secondary operations to be delayed, pending the resolution of infectious symptoms. The anterior cranial fossa must be isolated from the nasal cavity to prevent infectious complications. Because most of the complications are related to infection, frontal sinus fractures require extensive surgical debridement and adequate restructuring of the anatomy. The authors suggest surgeons to be familiar with various methods of treatment available in the prevention and management of complications following frontal sinus fractures, which is helpful in making the proper decision for secondary frontal sinus fracture surgery.
Brain Abscess ; Congenital Abnormalities ; Cranial Fossa, Anterior ; Debridement ; Encephalitis ; Fatal Outcome ; Frontal Bone ; Frontal Sinus* ; Meningitis ; Mucocele ; Nasal Cavity ; Osteomyelitis ; Postoperative Period ; Reoperation ; Sinusitis ; Skeleton ; Skin ; Surgeons ; Thrombosis

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