Surgical emphysema (SE) is characterized by air in the soft tissues causing a crackling sensation on palpation. In oral and maxillofacial surgery, it might occur using conventional air-driven dental hand pieces, as a complication of trauma and with cocaine insufflation. The subcutaneous air may travel through tissue planes causing cervicofacial emphysema, pneumothorax, and pneumomediastinum. It may carry bacteria and potentially lead to cellulitis or necrotizing fasciitis. The SE is usually a...
Sun Mar 01, 2020 02:00
Objective: To compare the clinical efficacy of Boston Keratoprosthesis type I (B-KProI) and penetrating keratoplasty (PKP) for patients with refractory keratopathy after 1failed PKP in China. Method: The 42 consecutive cases with refractory keratopathy after 1 failed PKP, from July 2010 to December 2014, were divided into 2 groups according to the surgical method: KPro group (n = 21) and PKP group (n = 21). Visual acuity (LogMAR), corneal graft transparency, postoperative complications and...
Sun Mar 01, 2020 02:00
With the development of computer-assisted surgery, preoperational design is detailed in software. However, it is still a challenge for surgeons to realize the surgical plan in the craniofacial surgery. Robot-assisted surgery has advantages of high accuracy and stability. It is suitable for the high-stress procedures like drilling, milling, and cutting. This study aims to verify the feasibility for automatic drilling without soft tissues in model test based on an industrial robot platform. This...
Sun Mar 01, 2020 02:00
Sun Mar 01, 2020 02:00
Autologous costal cartilage graft is optimal for augmentation rhinoplasty but with complications including markedly visible graft margins and dorsal contour irregularities. Therefore, the authors introduced the diced costal cartilage graft to smoothen the margins of bilateral spreader graft for nasal dorsum augmentation. A total of 6 patients were recruited for this augmentation rhinoplasty. The pre- and postoperative photographs were taken for improvement evaluation. During a mean follow-up of 15...
Sun Mar 01, 2020 02:00
The authors report a patient with masticator space abscess due to an ascending infection following a wisdom tooth extraction. They administered antibiotics and did an incision and drainage; however, osteomyelitis of the mandible and compartment syndrome of the temporal muscle complicated the course. The authors suggest a physiopathology and discuss the management of this study.
Sun Mar 01, 2020 02:00
The insufficient volume of lip is one of the pathological problems of cleft lip, despite that the cleft lip the muscles and skin are repositioned. Autologous fat is an ideal material for soft tissue repair, including correction of contour deformity, restoration of volume insufficient, and even improvement of tissue characteristics. In this study, the authors evaluated the result of fat grafting in improvement of lip contour in secondary cleft lip deformity. The authors performed a retrospective analysis...
Sun Mar 01, 2020 02:00
Chordoid glioma (CG) is a world health organization classified grade II tumor whose typical localization is in the anterior part of the third ventricle. It's clinical, neuroimaging, and pathologic features may vary and furthermore mimic other types of benign lesions usually associated with a better outcome, thus representing a potential radiological and diagnostic pitfall. In this article, the authors present a novel case of a 51-year-old male who underwent gross total removal of the tumor of the...
Sun Mar 01, 2020 02:00
Objectives: The aim was to evaluate overall quality of life (QOL) and investigate impact factors in Chinese neurofibromatosis type 1 (NF1) patients, particularly in those with craniofacial plexiform neurofibromas (pNFs). Methods: The Impact of NF1 on quality of life (INF1-QOL) Questionnaire were completed from a department of plastic and reconstructive surgery by 27 patients. Patients were 3 to 49 years of age. The correlation between subdomains were calculated using Pearson correlation....
Sun Mar 01, 2020 02:00
No abstract available
Sun Mar 01, 2020 02:00
Titanium mesh was widely used for cranium defect repair but associated with high complication rates. In this study, the authors describe a method using latissimus dorsi-myocutaneous flap in the repair of titanium mesh exposure and scalp defect after cranioplasty, and the plate retaining is also achieved. Fifteen patients from April 2012 to May 2016 underwent this procedure, the age ranged from 32 to 62 years and 47 years old on average, and all the patient had plate exposure combined with surgical...
Sun Mar 01, 2020 02:00
Background: Demineralized bone matrices (DBMs) were demonstrated to be a promising candidate for bone regeneration by previous studies. However, the limited osteoinductivity of DBMs was insufficient for a better repairing of bone defect. Osteoblasts (OBs), the major cellular component of bone tissues, play an important role in the formation of new bone. The extracellular matrix (ECM) of OB is one of the main components of bone formation niche. Objective: To combine the DBMs with the ECM of...
Sun Mar 01, 2020 02:00
Purpose: The direction and orientation of the osteotomized upper segments in dental implant distractor (DID) can be compromised due to an unpredicted vector of distraction. The present study aimed to evaluate the accuracy of computer-aided design/computer-aided manufacturing (CAD/CAM) surgical templates to precisely guide the distraction process in lengthening of the alveolar height for functional mandibular reconstruction. Patients and Methods: This retrospective study included all consecutive...
Sun Mar 01, 2020 02:00
No abstract available
Sun Mar 01, 2020 02:00
Background: Nevus is very common; however, melanoma is slightly related to the deterioration of nevus because of its vulnerability to solarization, friction, aging, heredity, and other factors. Early diagnosis is essential for melanoma treatment, since patients have a high survival rate with early detection and treatment. Computer-aided diagnosis has been applied in the differential diagnosis of melanoma and benign nevi and achieved high accuracy, but it does not suit the screening of nevi because...
Sun Mar 01, 2020 02:00
Objective: To summarize the prognosis of pediatric patients with mucoepidermoid carcinoma (MEC) of the parotid gland. Methods: Pediatric patients with MEC of parotid gland who were surgically treated at the Capital Medical University School of Stomatology from 2000 to 2014 were retrospectively analyzed. Clinical characteristics, pathology reports, and operation records were reviewed and analyzed. Results: In total, 33 patients with an average age of 13.2 years were enrolled. The 5-year...
Sun Mar 01, 2020 02:00
Introduction: The nasal defect is still a challenge for plastic surgeon now. Many surgical options are reported in previous literatures. There are few studies reported about the 1-staged repair of large nasal defect. In this article, the authors describe the experience about the nasal reconstruction in the last 8 years. Patients and Methods: Fifty-two patients diagnosed with nasal defect were retrospectively examined between 2011 and 2018. All of them performed under local anesthesia and...
Sun Mar 01, 2020 02:00
Introduction: Facial burns have significant physical and psychological effects on patients, and minimizing morbidity continues to be a challenge for reconstructive surgeons. Advancements have allowed the development of various skin substitutes. Among these, human dehydrated amniotic skin substitutes represent novel technology, yet their outcome has not been sufficiently studied to guide practice. The objective of our study is to compare the safety of amniotic membrane skin substitutes in the treatment...
Sun Mar 01, 2020 02:00
Objectives: The aim of this pilot study was to illustrate the feasibility of a full digital workflow to design and manufacturing a consecutive series of customized nasoalveolar molding (NAM) appliances in advance for presurgical unilateral and bilateral cleft lip and palate (CLP) treatment. Methods: The full digital workflow consisted of acquisition of 3D image data of an infant's maxilla by using intraoral scanner (TRIOS; 3Shape, Copenhagen, Denmark); the initial data were imported into...
Sun Mar 01, 2020 02:00
Background: Lips and mouth are the most recognizable parts of the lower face. The morphometry of the facial organs is important for the balance of the face. Besides congenital anomalies occur on the lips, some kinds of deformities might be seen because of trauma or carcinoma. In this respect, lips are in the study of plastic surgery, maxillofacial surgery and orthodontics. Lip morphology also takes an important role in forensic facial reconstruction (facial approximation). Materials and Methods:...
Sun Mar 01, 2020 02:00
Purpose: Despite many advances in the knowledge of vascular malformations, extracranial arteriovenous malformations (AVMs) remain an enigma and are usually misdiagnosed and mismanaged due to their associated rare morbidity. This study aimed to describe the clinical course and emphasize the progressive nature of AVMs through a retrospective study of 446 patients. Methods: Patients with cutaneous and soft-tissue AVMs presenting to our Vascular Anomalies Center between March 2011 and March 2017...
Sun Mar 01, 2020 02:00
Congenital bifid tongue is a rare malformation, which is usually present in association with other oral findings such as cleft palate and tongue mass. The authors present a rare case of congenital bifid tongue together with cleft palate, labial-buccal frenulum deformity, absence of lingual frenulum, and 3 hamartomas in the oral cavity. The authors excised oral hamartomas and repaired the palate and tongue with satisfactory results.
Sun Mar 01, 2020 02:00
Virtual simulation surgical system is a good way to develop surgical instruments, make surgical plan, and train surgeons. At present, due to the deformation of intraoperative soft tissue after retraction and the lack of effective data collection, the surgical simulation of facial contour surgery can only be conducted according to the preoperative computed tomography data. Due to the difficulty of obtaining real operative spatial data, it is difficult for the virtual surgery trajectory planning process...
Sun Mar 01, 2020 02:00
Objective: Thornwaldt cyst is a rare nasopharyngeal lesion that develops from primitive notochord residues. The aim of this study is to evaluate the long-term results of transnasal endoscopic marsupialization surgery in the treatment of Thornwaldt's cyst, its success and its qualification in the treatment. Method: The data of 21 patients who underwent transnasal endoscopic marsupialization surgery for symptomatic Thornwaldt cyst in our hospital between 2009 and 2015 and followed up regularly...
Sun Mar 01, 2020 02:00
Purpose: To determine perioperative risk factors predicted complications in elderly Chinese patients undergoing oral and maxillofacial reconstruction with radial forearm free flaps (RFFF). Patients and Methods: The authors implemented a retrospective study and enrolled a sample of patients at least 65-year old who underwent resection of oral and maxillofacial tumors and RFFF reconstruction from January 2011 to June 2018. Predictor variables were divided into: demographic variables (gender,...
Sun Mar 01, 2020 02:00
The genioglossus advancement muscle is a technique used to treat obstructive sleep apnea and depends on the precise location of the muscle insertion into the geniotubercle. The aim of this article was to present a case report about a 38-year-old male patient with obstructive sleep apnea even after undergoing uvulopalatopharyngoplasty and mentoplasty. A maxillo-mandibular advancement and genioglossus was proposed, for this a virtual planning of the surgical guide was done using a specialized software....
Sun Mar 01, 2020 02:00
Objective: To summarize and analyze the postoperative complications of box-shift osteotomy performed at our center for Chinese orbital hypertelorism patients from 2008 to 2017. Method: This retrospective study reviews the records of 78 patients with complete medical records and at least 2 years of postoperative follow-up data. Both radiologic and anthropometric assessments were conducted before, 1 month after and 2 years after surgery to evaluate the bony and soft-tissue alterations. Postoperative...
Sun Mar 01, 2020 02:00
Objectives: To get and analyze the metric data of zygomatic region for the plasty of zygoma. Materials and Methods: A total of 108 dry skulls in Chinese Han population were randomly collected and measured. The metrical data were divided into 4 parts, including the relative position of contour height of zygomatic bone, the relative prominence of zygomatic bone, the relative prominence of zygomatic arch, and the angle of the zygomatic bone and arch. Results: The measurements in the 4 parts...
Sun Mar 01, 2020 02:00
The purpose of this study is to evaluate the clinical technique of reconstruction of craniomaxillofacial bone defects by using hand-made customized prosthesis of hydroxyapatite (HA)/epoxide acrylate maleic (EAM) compound with computer-aided technique. Between 2008 and 2015, eleven patients underwent computed tomography, three-dimensional (3D) imaging and reconstruction surgery. These customized HA/EAM compound artificial implants were hand-made, guided by computer-aided solid 3D reconstruction models...
Sun Mar 01, 2020 02:00
Background: Muscle tissue engineering still remains a major challenge. An axial vascular pedicle and a perfusion bioreactor are necessary for the development and maintenance of a large-volume engineered muscle tissue to provide circulation within the construct. This study aimed to determine whether large-volume vascularized muscle-like constructs could be made from rat groin adipose tissue in a perfusion bioreactor. Methods: Epigastric adipofascial flaps based on the inferior superficial...
Sun Mar 01, 2020 02:00
Electromagnetic Navigation in Craniofacial Surgery Based on Automatic Registration of Dental Splints
Optical navigation method cannot be used in partial craniofacial surgery due to light blocking. At present, electromagnetic navigation method can be used instead. The occlusal splint obtained from the patient's dental mold is used in the traditional electromagnetic navigation registration. Then, marker points are selected manually for registration through imaging data during the operation, which leads to the deviation of selection. In this study, the self-developed registration software was used...
Sun Mar 01, 2020 02:00
No abstract available
Sun Mar 01, 2020 02:00
Objective: To explore the safe zone for micro-implants of the maxillary molar region by oblique plane cutting mode of cone beam computed tomography (CBCT). Methods: Thirty-nine patients with orthodontic alignment were enrolled with CBCT. In this study, the areas between the maxillary second premolar and the first molar were analyzed by the image reconstruction with CS 3D Imaging Software. The alveolar ridge bone width and the minimum interradicular space were measured at the height of 8,...
Sun Mar 01, 2020 02:00
Objective: Trigeminal neuralgia (TN) is a common cranial nerve disease. Inflammation is suggested in many recent studies to be involved in neuropathic pain, but its role in TN remains unclear so far. Therefore, the current study aimed to explore the relationship of inflammation with TN. Methods: The levels of inflammatory markers, such as white blood cell (WBC), neutrophil (NE), lymphocyte (LY), monocyte (MO), platelet (PLT), and albumin (ALB), as well as the neutrophil/lymphocyte ratio (NLR),...
Sun Mar 01, 2020 02:00
Orbital blow out fracture is a common disease in emergency department and a delay or failure in diagnosis can lead to permanent visual changes. This study aims to evaluate the ability of an automatic orbital blowout fractures detection system based on computed tomography (CT) data. Orbital CT scans of adult orbital blowout fractures patients and normal cases were obtained from Shanghai Ninth People's Hospital between January and March 2017. The region of fractures was annotated using 3D Slicer....
Sun Mar 01, 2020 02:00
Endotracheal intubation is a commonly used method for securing airway. It is considered to be safe but it can still lead to some complications of the airway. Recurrent nerve paralysis due to endotracheal intubation is a rare complication. Pathophysiology is explained as neuropraxia of RLN's compression between the tube and the lamina of the thyroid cartilage or between arytenoid and cricoid cartilages due to tube cuff pressure or tube itself. In literature, unilateral vocal cord paralysis (VCP) due...
Sun Mar 01, 2020 02:00
Bilateral palpebral fissures (PF) are rarely symmetrical. Palpebral plastic surgery is common in the Chinese population. This study aimed to assess the classification of obviously asymmetric palpebral fissures (OAPF). In addition, double eyelid surgery-based correction for the primary subtype was examined. Various clinical signs and etiologies were examined, and OAPF were classified into 3 subtypes: primary, secondary, and aging. For the secondary and aging subtypes, curative surgeries target the...
Sun Mar 01, 2020 02:00
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