Recurrence-Related Factors of Temporomandibular Joint Ankylosis: A 10-Year Experience.

Purpose: The treatment of temporomandibular joint (TMJ) ankylosis can be challenging for surgeons because of technical difficulties and a high incidence of recurrence. In the present study, we reviewed the data from patients with TMJ ankylosis during a 10-year period and explored the risk factors for recurrence.

Materials And Methods: A retrospective cohort study was conducted to review the data from patients with TMJ ankylosis from January 1, 2006 to December 31, 2015.

One-stage technique for sagittal split ramus osteotomy combined with mandibular angle ostectomy.

Bilateral sagittal split ramus osteotomy (BSSRO) is commonly used to correct mandibular prognathism or retrognathism. Patients with mandibular prognathism or retrognathism may also present with a prominent mandibular angle. In this paper, we share our experience on BSSRO with mandibular angle resection.

Width-Controlling Fixation of Symphyseal/Parasymphyseal Fractures Associated With Bilateral Condylar Fractures With 2 2.0-mm Miniplates: A Retrospective Investigation of 45 Cases.

Purpose: Symphyseal and parasymphyseal fractures and bilateral condylar fractures represent a pattern that is quite challenging to manage. This study evaluated the treatment outcomes of a group of patients who underwent surgery using miniplate fixation for anterior mandibular fractures.

Materials And Methods: This retrospective case series study reviewed patients with bilateral condylar fractures and noncomminuted symphyseal and parasymphyseal fractures.

Quantitation of zygomatic complex symmetry using 3-dimensional computed tomography.

Purpose: To improve the clinical evaluation of the symmetry of the zygomatic complex (ZMC), the authors developed a new method to measure the eminence and width of the ZMC using 3-dimensional (3D) computed tomography (CT). The accuracy and reproducibility of the ZMC symmetry evaluation using this method were investigated.

Materials And Methods: Spiral CT was carried out in 50 volunteers with visually symmetric faces.

Imaging and histologic features of traumatic temporomandibular joint ankylosis.

Objective: We aimed to study the pathology underlying traumatic temporomandibular joint ankylosis (TMJA).

Study Design: Specimens from 10 patients with traumatic TMJA were categorized using the Sawhney classification and were decalcified and stained with hematoxylin-eosin, alcian blue/periodic acid-Schiff, alizarin red, and Masson stains. Immunostaining with anti-CD34 antibody was performed.

Comparative study of four maxillofacial trauma scoring systems and expert score.

Purpose: To select a scoring system suitable for the scoring of maxillofacial trauma by comparing 4 commonly used scoring systems according to expert scoring.

Patients And Methods: Twenty-eight subjects who had experienced maxillofacial trauma constituted the study cohort. Four commonly used systems were selected: New Injury Severity Score (NISS), Facial Injury Severity Scale (FISS), Maxillofacial Injury Severity Score (MFISS), and Maxillofacial Injury Severity Score (MISS).

Zygomatic surface marker-assisted surgical navigation: a new computer-assisted navigation method for accurate treatment of delayed zygomatic fractures.

Purpose: To describe a new method of zygomatic surface marker navigation to treat delayed unilateral zygomatic fractures.

Patients And Methods: The computed tomography (CT) data for 6 patients were obtained before surgery and imported into the surgical planning software. After 3-dimensional (3D) construction and segmentation, 3D cylindrical-shaped objects in stereolithographic format were placed in position and merged with the data from the fractured segments to mark the area for surface reduction.

A pilot trial on the molecular pathophysiology of traumatic temporomandibular joint bony ankylosis in a sheep model. Part II: The differential gene expression among fibrous ankylosis, bony ankylosis and condylar fracture.

Objective: The purpose of the study was to preliminarily explore the differential expressions of a series of genes regulating bone formation in temporomandibular joint (TMJ) fibrous ankylosis, bony ankylosis and condylar fracture healing.

Methods: The cDNA from either the bony ankylosed callus or fracture callus of the 6 sheep, as described in the part I, were both used in the study. The differences of gene expressions between bony ankylosis and condylar fracture at 1, 3, and 6 months postoperatively were measured by real-time PCR, with 2 samples at each time point.

A pilot trial on the molecular pathophysiology of traumatic temporomandibular joint bony ankylosis in a sheep model. Part I: Expression of Wnt signaling.

Objective: To preliminarily investigate the temporal patterns of the endogenous mRNA expression for members of the Wnt signaling and a series of genes regulating bone formation during the development of traumatic temporomandibular joint (TMJ) bony ankylosis in a sheep model.

Methods: Six sheep were used for the induction of bony ankylosis of TMJ. We performed a condylar fracture, excision of the lateral 2/3 disc and serious injury to the glenoid fossa to induce bony ankylosis on the right TMJ.

Quality of life of patients with neurodermatitis.

Background: Neurodermatitis is a common chronic skin disease. Although not life-threatening, it can produce an important psychosocial burden, sleep disturbance and sexual dysfunction. Patients with neurodermatitis tend to have poor social skills or interpersonal resources and a lack of flexibility.

[Evaluation of the navigation system for orbital wall reconstruction in unilateral orbital fractures].

Objective: To evaluate the efficiency of navigation system for orbital wall reconstruction in unilateral orbital fractures.

Methods: Fifteen patients (7 male and 8 female) with unilateral orbital fracture underwent orbital reconstruction with the help of intraoperative navigation system. The average age was 34.

[Application of computer navigation system in the treatment of post-traumatic reconstruction].

Objective: To investigate the value of computer aided navigation system (CANS) in the treatment of post traumatic maxillofacial deformation.

Methods: Fifty-four patients (M = 37, F = 17) were included in the study, including 31 cases of zygomatic fracture, 7 cases of pure orbital fracture, 11 cases of temporal mandibular joint ankylosis, 1 case of foreign body and 4 cases of defect reconstruction with custom implant. Data acquisition was done through CT scan, and DICOM data was transferred into workstation.

[Clinical evaluation of computer-navigated surgery in correcting unilateral delayed zygomatic fractures].

Objective: To compare the efficacy of computer-navigated surgery and the 3-D skull models and guide plates for the treatment of unilateral delayed zygomatic fractures.

Methods: Eleven patients with unilateral delayed zygomatic fractures were treated by computer-navigated surgery (test group) and another 12 patients were treated by 3-D skull models and guide plates as the control group. Quality of reduction was assessed by examination of postoperative axial CT scans through zygomatic arch, the malar prominence and the width of zygomatic arch were measured in both groups.

Ankylosing spondylitis associated with bilateral ankylosis of the temporomandibular joint.

Objective: The objective of this study was to analyze the clinical and laboratory features, treatments, and prognosis of ankylosing spondylitis (AS) associated with bilateral temporomandibular joint ankylosis (TMJA).

Methods: A PubMed search was conducted from 1966 to date, and the references of published studies were also checked to identify additional cases. Information from these reports and our report were compared and analyzed.

[Surgical treatment for incomplete Tessier No.3 craniofacial cleft: report of three cases and review of literature].

Objective: To primarily assess the surgical technique to correct incomplete Tessier No. 3 craniofacial cleft.

Methods: From 2009 to 2010, 3 male patients with incomplete Tessier No.

Correlation of types of orbital fracture and occurrence of enophthalmos.

We sought to investigate the correlation between type of orbital fracture and occurrence of traumatic enophthalmos. The 119 patients with orbital fractures were divided into the enophthalmos group (71 cases) and the nonenophthalmos group (48 cases). The 2 groups were compared by location and type of orbital fracture based on observation of computed tomography scans.

Surgical induction of TMJ bony ankylosis in growing sheep and the role of injury severity of the glenoid fossa on the development of bony ankylosis.

Objective: The purpose of this paper is to summarize our experiences in creating an animal model of TMJ bony ankylosis based on 2 sequential experiments.

Methods: Two sequential experiments were performed with the aim of creating a model of TMJ bony ankylosis. Seven growing sheep were used in the first experiment, in which 1 was served as a control animal.

[Anatomic study and preliminary clinical application of the laterally based pericranial flap to treat traumatic enophthalmos].

Objective: To assess the vascularization of the laterally based pericranial flap and the feasibility of bony channel on the orbital lateral wall for transplantation of the flap, and apply this flap to treat traumatic enophthalmos.

Methods: Two formalin preserved cadaver specimens were anatomized to observe the feasibility of pericranial flap transplantation through the bony channels on lateral orbital walls. Two fresh cadaver specimens were perfused with latex and ink respectively to observe the possible blood supply to laterally based pericranial flaps.

[Application of 3-D skull models and guide plates in the treatment of unilateral orbitozygomatic deformity after fracture].

Objective: To discuss the application of 3-D skull models and guide plates in treatment of unilateral orbitozygomatic deformity after fracture.

Methods: Each patient underwent CT scan and DICOM data was obtained preoperatively. Two 3-D resin skull models were produced by rapid prototyping technique.

Evaluation of the application of computer-aided shape-adapted fabricated titanium mesh for mirroring-reconstructing orbital walls in cases of late post-traumatic enophthalmos.

Purpose: Computer-aided individually shape-adapted fabricated titanium mesh for the mirroring-reconstruction of the orbit is a promising method for the correction of post-traumatic enophthalmos. The purpose of this study was to evaluate the application of this technique and assess the treatment outcomes.

Patients And Methods: Twenty-one patients with delayed treatment of unilateral impure orbital fracture and post-traumatic enophthalmos were included in this study.

[Prosthetic replacement of condylar head for management of traumatic temporomandibular joint ankylosis].

Objective: To preliminarily evaluate the method of using titanium condylar protheses in management of traumatic temporomandibular joint ankylosis.

Methods: Between August 2006 and April 2008, titanium condylar replacement was performed in 5 male patients. Preoperative CT datum of patient was obtained and a resin model was then produced and used as a reference to select a suitable titanium condyle for reconstruction of the joint.

[Measurement of the globe proptosis by CT and its accuracy in patients with unilateral orbital fracture].

Objective: To evaluate the accuracy of measurement of the globe proptosis by CT in patients with unilateral orbital fracture.

Methods: 25 patients with unilateral orbital fracture were included. CT was performed before and after operation.

[Ora-maxillofacial traumatic defects reconstruction with free flaps].

Objective: To evaluate the application, indications and outcomes of free flaps for ora-maxillofacial traumatic defects reconstruction.

Methods: Twenty consecutive cases of ora-maxillofacial the traumatic defects reconstruction with free flaps were reviewed. All clinical data including causes of injuries, the type of defects, selection of free flaps, perioperative complications and the follow-up were analyzed.