Active clinical trials for "Zygomatic Fractures"

Reconstruction of orbital defects resulting after trauma; tumor resection; maxillary cyst; craniofacial anomalies and sequestrated bone…. etc., has been a challenging issue over the years and this owing to the complicated anatomy of orbit. Inaccurate orbital reconstruction may lead to devastating cosmetic and functional complications. Titanium mesh for orbital reconstruction has now become "probably" the most popular material for orbital wall reconstruction worldwide. Innovation of CAD-CAM technology and its application in maxillofacial surgery will markedly improve the surgical outcome. This study will assess the accuracy of orbital reconstruction using CAD-CAM technology and to compare two different modalities for orbital reconstruction based on this technology.

In this study, a new method was proposed to calculate the length of sideburns mini incision for zygomatic arch fracture. The purpose of this study was to compare the sideburns mini incision calculated by this method with the coronal scalp incision, so as to determine the therapeutic effect and advantages of sideburns mini incision calculated by this method.

The study is a randomized controlled clinical trial, following the Consolidated Standards of Reporting Trials (CONSORT) guidelines. The study is intended to compare between the subtarsal approach, conventional transconjuctival approach and the Y- modification of the transconjuctival approach in the management of zygomatico-maxillay complex fracture.

this study was made on fifteen patients who will undergo fracture repair of the zygomaticomaxillary complex. Postoperative patient evaluation performed with specific attention paid towards, accessibility the exposure duration(time from incision till exposure of the field), esthetic appearance, post-operative pain, post-operative edema, orbital movement, wound healing, scarring infection, and the post-operative ocular complications such as ectropion, entropion, enophthalmos, scleral show and corneal abrasion. Postoperative clinical examinations along with radiographic examination was done to evaluate the position of zygoma and determine the adequacy of fracture reduction.

The zygomatic bone defines the anterior and lateral projection of the face and articulates with the frontal, sphenoid,temporal, and maxillary bones. The zygomatic complex is responsible for the protection of the orbital contents and the mid-facial contour. Fracture of the zygomatic complex is one of the most common facial injuries in maxillofacial trauma and predominately appears in young adult males. The etiology of zygomatic complex fractures primarily includes road traffic accidents, violent assaults, falls and sports injuries. The main clinical features of zygomatic complex fractures include diplopia, enophthalmos, subconjunctival ecchymosis, extraocular muscle entrapment, cosmetic deformity with depression of the malar eminence, malocclusion and neurosensory disturbances of the infraorbital nerve. Diagnosis of zygomatic complex fractures is usually clinical with confirmation by computed tomography (CT) scan. Zygomatic complex fractures with no or minimal displacement are often treated without surgical intervention, whereas fractures with functional or esthetic impairments often necessitate surgical intervention. Various surgical approaches and treatment strategies have been proposed to obtain successful treatment outcome, including the Gilles temporal approach, eyebrow, upper eyelid, transconjunctival, infraciliary lower eyelid, and intraoral vestibular approaches. The surgical approach for adequate reduction of zygomatic complex fractures must ensure a good functional and cosmetic result. Surgical reduction of zygomatic fractures by an intraoral surgical approach was first described in1909 by Keen, and several studies have subsequently documented the treatment outcome after open reduction of zygomatic complex fractures by an intraoral surgical approach.

Treatment of late deformities following fractures of the orbitozygomaticomaxillary complex can be considered a formidable challenge, even to the skilled surgeon. However, the development of Computer-Assisted Navigation technology Offers new opportunities in the treatment of such deformities. With the help of navigation system,pre- and intraoperatively,the objective of any supporting medical device for reconstruction of the orbitozygomaticomaxillary complex would be visualization of the real and desired positions of the zygoma. In this randomized controlled trial, the investigators would like to evaluate the feasibility and accuracy of a new method for planning and realizing zygomatic osteotomies in cases of established post-traumatic deformities using computer assisted navigation.

Patients with unilateral non-comminuted zygomatic complex fracture undergo fixation of the complex by a customized plate at one point after 3D virtual simulation and reduction of the complex using Mimics software.

Evaluation of The Accuracy of Zygomatico- Maxillary Complex (ZMC) Fractures reduction Using Patient Specific Guide (PSG) Versus Conventional Technique

Many studies show that computer-assisted navigation system have been available to treat zygomatic-complex fractures. However, most of them are case reports or clinical experiences lacking multiple variables and controlled design. The aim of this study was to evaluate the accuracy of the computer-assisted navigation system by a randomized controlled trial with multiple variables.