Cranio-Maxillo-Facial Reconstruction with Polyetheretherketone Patient-Specific Implants: Aesthetic and Functional Outcomes.

Background: Reconstructing cranio-maxillo-facial defects presents significant challenges. This study evaluates the results of polyetheretherketone patient-specific implants (PEEK PSIs) in primary and secondary cranio-maxillo-facial reconstructions, with a focus on aesthetic and functional outcomes and long-term complications.

Methods: From October 2009 to February 2023, 45 patients underwent cranio-maxillo-facial reconstructions with PSIs.

Patient Specific Implants for Orbital Reconstruction in the Treatment of Silent Sinus Syndrome: Two Case Reports.

Silent sinus syndrome is a rare disorder characterized by ipsilateral enophthalmos and hypoglobus following a collapse of the orbital floor, in the presence of asymptomatic long-term maxillary sinusitis. It results in enophthalmos, hypoglobus and deepening of the superior palpebral sulcus. A standardized treatment protocol for this infrequent syndrome has not yet been established.

Accuracy of intraoperative navigation for orbital fracture repair: A retrospective morphometric analysis.

In this retrospective case series, patients undergoing surgery to treat isolated orbital floor fractures were morphometrically analyzed. Cloud Compare was used to compare mesh positioning with a virtual plan, using the distance-to-nearest-neighbor method. To assess the accuracy of mesh positioning, a mesh area percentage (MAP) parameter was introduced and three distance ranges were defined as the outcome measures: the 'high-accuracy range' included MAPs at a distance of 0-1 mm from the preoperative plan; the 'intermediate-accuracy range' included MAPs at a distance of 1.

Pediatric mandibular fractures: Surgical management and outcomes in the deciduous, mixed and permanent dentitions.

Background/aim: Mandibular fractures are the most frequent type of pediatric facial traumatic injury, but their treatment remains controversial. The aim of this retrospective study was to analyze the surgical treatment and long-term outcomes of dentate mandibular fractures in children and adolescents.

Material And Methods: Patients with mandibular fractures in the dentate area who were surgically treated in the period from January 1, 2001, to December 31, 2020, were included.

Osteochondroma of the mandibular condyle: Indications for different surgical methods: A case series of 7 patients.

The aim of this study was to evaluate and discuss the long-term outcomes of patients with condylar osteochondroma managed through 3 different surgical techniques. Seven patients with condylar osteochondroma treated in the author's department from May 2012 to January 2019 were included in this retrospective study. Clinical evaluations (visual analogue scale for TMJ pain, jaw function, symmetry, and quality of life), maximum interincisal opening (MIO) and radiological findings were collected pre- and postoperatively.

Virtual planning and CAD/CAM-assisted distraction for maxillary hypoplasia in cleft lip and palate patients: Accuracy evaluation and clinical outcome.

The aim of this prospective study was to report the experience with a specific guided distraction protocol for the treatment of CLP patients with severe midface hypoplasia. From January 2016 to April 2019, six consecutive, non-growing, CLP patients with maxillary hypoplasia underwent a specific distraction protocol based on the use of VSP, CAD/CAM-generated surgical splints, cutting guides, prebent internal maxillary distractors, early removal of distractors, and acute callus manipulation and fixation. STL files for VSP, using multislice CT scans taken preoperatively (T0) and 3 months after distractor removal (T1) were superimposed using the free software 3D Slicer and Geomagic Wrap to evaluate the accuracy of maxillary repositioning and assess 3D bone changes.

Three-Dimensional Evaluation of Soft Tissue Malar Modifications after Zygomatic Valgization Osteotomy via Geometrical Descriptors.

Patients with severe facial deformities present serious dysfunctionalities along with an unsatisfactory aesthetic facial appearance. Several methods have been proposed to specifically plan the interventions on the patient's needs, but none of these seem to achieve a sufficient level of accuracy in predicting the resulting facial appearance. In this context, a deep knowledge of what occurs in the face after bony movements in specific surgeries would give the possibility to develop more reliable systems.

Malar augmentation with zygomatic osteotomy in orthognatic surgery: Bone and soft tissue changes threedimensional evaluation.

Background: The aim of this prospective study is to objectively assess 3D soft tissue and bone changes of the malar region by using the malar valgization osteotomy in concomitant association with orthognatic surgery.

Materials And Methods: From January 2015 to January 2018, 10 patients who underwent single stage bilateral malar valgization osteotomy in conjunction with maxillo-mandibular orthognatic procedures for aesthetic and functional correction were evaluated. Clinical and surgical reports were collected and patient satisfaction was evaluated with a VAS score.

The Shape of Things to Come: In-Hospital Three-Dimensional Printing for Mandibular Reconstruction Using Fibula Free Flap.

Objectives/hypothesis: The aim of this study was to explore whether the production of in-hospital, low-cost surgical cutting guides would be possible and to assess different cutting guide shapes to facilitate the surgery and the application with instruments.

Study Design: Cohort study.

Methods: Using free computer-aided design software, surgical cutting guides for the mandible and fibula were designed and used to perform virtual segmental osteotomies and fibula transplants in seven patients.

Surgical Treatment of Massive Teratoma of the Orbit.

Orbital location of teratoma is extremely rare. The differential diagnosis can be difficult and they may be mistaken for other tumors as they may have both cystic and solid areas. The authors report a case of a 7-day-old neonate with a massive congenital orbital teratoma in which it was decided to apply a surgical technique that involves the aspiration of the cystic fluid, the subsequent infusion of fibrin glue, and the radical excision.

Non-extraction and multiloop edgewise technique versus orthognathic surgery and fixed appliance in adult class II patients: a cephalometric comparative study.

Background: An alternative approach to surgery for treating class II adult borderline patients is the non-extraction and multiloop edgewise archwire (MEAW) technique. The aim of the present study is to compare dentoskeletal effects of the orthognathic surgery with the MEAW technique.

Methods: Thirteen adults (ten women, three men; mean age, 27.

Surgical Management of the Peripheral Osteoma of the Zygomatic Arch: A Case Report and Literature Review.

An osteoma is a benign, slow-growing, osteogenic neoplasm with a low recurrence rate that is typically characterized by the proliferation of a compact or cancellous bone. It can be peripheral, central, or extraskeletal. Usually asymptomatic, peripheral osteomas in the maxillofacial region commonly arise in the paranasal sinuses and mandible and rarely occur in the zygomatic arch, with only six previously documented cases in the literature.

Evaluation of the Accuracy of Virtual Planning in Orthognathic Surgery: A Morphometric Study.

Background: The purpose of this study was to prospectively test the accuracy of computer-aided orthognathic surgery comparing the virtual surgical planning with the three-dimensional (3D) outcome.

Methods: Patients that underwent computer-assisted orthognathic surgery were retrospectively evaluated. The postoperative results were compared with the surgical plan, superimposing the postoperative computed tomography (CT) scan onto the virtual plan.

Management of atrophic mandibular fractures: An Italian multicentric retrospective study.

Purpose: The aim of this multicentric study was to retrospectively evaluate the surgical outcome of atrophic mandible fractures treated with open reduction and rigid fixation (ORIF), using load-bearing plates.

Materials And Methods: 55 patients from three trauma centers were retrieved for the study. Inclusion criteria were: edentulous patients with mandibular body fractures; mandibular body thickness <20 mm.

Temporomandibular joint reconstruction with stock and custom-made devices: Indications and results of a 14-year experience.

Purpose: Temporomandibular joint (TMJ) reconstruction with alloplastic implants is a reliable, safe and effective treatment option for selected debilitating pathologies of the TMJ. This study retrospectively analyzes our 14-year experience in total alloplastic reconstruction of the TMJ using stock and custom Biomet prostheses. Indications, results and rationale for the choice of stock and custom-made devices are discussed.

Facial Mobility after Maxilla-Mandibular Advancement in Patients with Severe Obstructive Sleep Apnea Syndrome: A Three-Dimensional Study.

The functional results of surgery in terms of facial mobility are key elements in the treatment of patients. Little is actually known about changes in facial mobility following surgical treatment with maxillomandibular advancement (MMA). The three-dimensional (3D) methods study of basic facial movements in typical OSAS patients treated with MMA was the topic of the present research.

Comparison of the Outcomes of Complex Orbital Fracture Repair with and without a Surgical Navigation System: A Prospective Cohort Study with Historical Controls.

Background: In severe orbital fractures, restoration of orbital shape and volume is required to avoid diplopia and posttraumatic enophthalmos. The purpose of this study was to compare outcomes between navigation-aided and conventional techniques for complex unilateral orbital fractures using titanium mesh.

Methods: The outcomes and the computed tomography-measured orbital volume of two groups of orbital complex unilateral reconstruction cases were compared.

Soft, hard-tissues and pharyngeal airway volume changes following maxillomandibular transverse osteodistraction: Computed tomography and three-dimensional laser scanner evaluation.

Introduction: Maxillomandibular transverse osteodistraction (MMTOD) is an alternative approach to the traditional treatment for transverse maxillary and mandibular deficiencies and crowding. The aim was to report soft and hard-tissues changes and airway volume variation.

Methods: In this study, skeletally mature, non-syndromic patients with transverse maxillary and mandibular hypoplasia, who underwent a MMTOD between 2010 and 2012, were included.

The Management of Iatrogenic Obstructive Sleep Apnoea Syndrome Following Bimaxillary Surgery in a Patient with Cleft Lip and Palate.

A 26-year-old man presented with a 6-year history of severe obstructive sleep apnoea syndrome followed a bimaxillary osteotomy procedure for a class III skeletal pattern. The patient was born with a unilateral cleft lip and palate and underwent primary lip and palate repair and later a pharyngeal flap for severe velopharyngeal insufficiency. Surgical management of obstructive sleep apnoea syndrome with conventional osteotomy, in cleft lip and palate patients, is a difficult problem.

One stage treatment of temporomandibular joint complete bony ankylosis using total joint replacement.

Introduction: Temporomandibular joint ankylosis is a joint disorder due to bone or fibrous adhesion of the joint components that cause loss of function. There are many causes, such as trauma, infections and systemic diseases. To date, no uniform treatment protocol has been established.

Treatment of Orbital Medial Wall Fractures with Titanium Mesh Plates Using Retrocaruncular Approach: Outcomes with Different Techniques.

Surgical management of medial wall orbital fractures should be considered to avoid diplopia and posttraumatic enophthalmos. Treatment of these fractures remains a challenge for the maxillofacial surgeon because of complex anatomy and limited vision. This article aims to retrospectively evaluate the outcomes in the repair of medial orbital wall fractures using a retrocaruncular approach and titanium meshes, comparing the placement of the titanium mesh with three different techniques: (1) conventional free hand under direct vision, (2) with the assistance of an endoscope, and (c) with the assistance of a navigation system.

Primary and secondary reconstruction of complex craniofacial defects using polyetheretherketone custom-made implants.

Purpose: The aim of this study was to evaluate the surgical outcomes using polyetheretherketone (PEEK) patient-specific prostheses produced by computer-aided design and manufacturing for primary and secondary reconstruction in patients with craniofacial defects.

Material And Methods: The study included 13 patients who underwent reconstruction for craniofacial defects using PEEK patient-specific implants (PSI). Eight patients underwent single-step primary reconstruction using individual custom-made surgical guides and custom-made prostheses during the same surgery; five patients underwent delayed reconstruction.