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Mandibular distraction surgery

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https://www.readbyqxmd.com/read/29564221/orthodontic-and-orthopedic-treatment-for-a-growing-patient-with-tessier-number-0-cleft
#1
Seung-Hak Baek, Yoon-Hee Park, Jee Hyeok Chung, Sukwha Kim, Jin-Young Choi
The purpose of this case report was to introduce the concept of orthodontic and orthopedic treatment for a growing patient with Tessier number 0 cleft. A 5-year-old boy patient with Tessier number 0 cleft presented congenitally missing maxillary central incisors (MXCI), a bony defect at the premaxilla, a constricted maxillary arch, an anterior openbite, and maxillary hypoplasia. His treatment was divided into three stages: management of the bony defect at the premaxilla and the congenitally missing MXCIs using a fan-type expansion plate, iliac bone grafting, and eruption guidance of the maxillary lateral incisors into the graft area for substitution of MXCIs; management of the maxillary hypoplasia using sequential facemask therapy with conventional and skeletal anchorage; and management of the remaining occlusal problems using fixed orthodontic treatment...
March 2018: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/29554059/a-quantitative-analysis-of-weight-gain-following-mandibular-distraction-osteogenesis-in-robin-sequence
#2
Cyril S Gary, Sharon Marczewski, Patricia M Vitagliano, Rajendra Sawh-Martinez, Robin Wu, Derek M Steinbacher
Mandibular distraction osteogenesis (MDO) is an effective treatment modality for children suffering from upper airway obstruction from Robin Sequence (RS). Mandibular distraction osteogenesis has been shown to have positive effects on oral feeding and for relieving respiratory obstruction, but its effects on postoperative weight gain are poorly understood. This study quantitatively analyzes weight gain following MDO. A retrospective chart review identified 22 RS children who underwent MDO. Patient weight data, feeding methods pre- and postoperatively, and polysomnography data pre- and postoperatively were collected...
March 16, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29521769/determining-the-patient-specific-optimum-osteotomy-line-for-severe-mandibular-retrognathia-patients
#3
Abdullah Tahir Şensoy, Irfan Kaymaz, Ümit Ertaş, Ali Kiki
PURPOSE: The purpose of this study is to suggest a patient-specific osteotomy line to optimize the distractor position and thus to minimize the disadvantages of conventional mandibular distraction osteogenesis (MDO) protocols. In addition, this study also aims to compare the conventional MDO protocols with the new MDO protocol proposed in this study in terms of both orthodontic outcomes and mechanical effects of osteotomy level on callus stabilization by means of the finite element method...
March 8, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29431348/new-technique-for-large-mandibular-and-surrounding-soft-tissue-reconstruction-that-uses-an-intraoral-three-dimensional-distractor-for-one-step-transport-disc-distraction-osteogenesis
#4
Antonio Cortese, Mario Caggiano, Giuseppe Pantaleo, Massimo Amato, Pier P Claudio
BACKGROUND: Mandibular reconstruction after ablative surgery is challenging not only for the amount of bone tissue needed following bone loss after benign or malignant tumor surgical removal, but mainly to reconstruct bone shape and structure necessary for subsequent implant insertion to preserve the function (speech, swallowing and chewing) and aesthetic of the lower face. Several different techniques for maxillary bone defects reconstruction have been described. The aim of our work is to describe a new technique for mandibular reconstruction that uses an intramural distractor, which is placed in one surgical step and without the need for a skin incision...
February 9, 2018: Minerva Stomatologica
https://www.readbyqxmd.com/read/29314144/bone-augmentation-followed-by-implant-surgery-in-the-edentulous-mandible-a-systematic-review
#5
REVIEW
R J de Groot, M A E M Oomens, T Forouzanfar, E A J M Schulten
Long-standing loss of natural teeth in the mandible can lead to severe jaw atrophy and even mandibular fracture. There is no consensus on the best pre-prosthetic surgical treatment to reconstruct the atrophic edentulous mandible. The purpose of this review was to provide an overview of the existing literature and to give an evidence-based recommendation for bone grafting and future research. This systematic review was conducted according to the PRISMA statement. A literature search was performed in online databases Pubmed and Cochrane library for articles published between January 1980 and September 2017...
April 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29194258/management-of-nonsyndromic-skeletal-dysgnathia-by-distraction-osteogenesis-long-term-follow-up
#6
Gagan Deep Kochar, Ashish Chakranarayan, Bensy Varghese, Sanjay Manohar Londhe, Sanjay Kumar Roy Chowdhury, Shreehari Ambika Krishnawarrier
Distraction osteogenesis has been a paradigm shift in the field of orthognathic surgery. Majority of the published cases are those of syndromic patients that have been managed using varying treatment protocols. This communication describes a patient of 18-year-old male diagnosed with skeletal Class II malocclusion due to mandibular retognathism. The patient was taken up for mandibular corpus distraction of 10 mm. By this approach the patient was benefitted with good esthetic result and functional occlusion...
March 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29150379/changes-in-maxillofacial-morphology-and-velopharyngeal-function-with-two-stage-maxillary-distraction-mandibular-setback-surgery-in-patients-with-cleft-lip-and-palate
#7
T Susami, Y Mori, K Ohkubo, M Takahashi, Y Hirano, H Saijo, T Takato
Maxillary distraction is increasingly used for the correction of severe maxillary retrusion in patients with cleft lip and palate. However, control of the maxillary movement is difficult, and the need to wear visible distractors for a long period of time causes psychosocial problems. A two-stage surgical approach consisting of maxillary distraction and mandibular setback was developed to overcome these problems. In this study, changes in maxillofacial morphology and velopharyngeal function were examined in 22 patients with cleft lip and palate who underwent this two-stage approach...
November 14, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29068938/pediatric-obstructive-sleep-apnea-consensus-controversy-and-craniofacial-considerations
#8
REVIEW
Ravi K Garg, Ahmed M Afifi, Catharine B Garland, Ruston Sanchez, Delora L Mount
Pediatric obstructive sleep apnea, characterized by partial or complete obstruction of the upper airway during sleep, is associated with multiple adverse neurodevelopmental and cardiometabolic consequences. It is common in healthy children and occurs with a higher incidence among infants and children with craniofacial anomalies. Although soft-tissue hypertrophy is the most common cause, interplay between soft tissue and bone structure in children with craniofacial differences may also contribute to upper airway obstruction...
November 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29040144/surgical-treatment-of-dentofacial-deformities-caused-by-juvenile-idiopathic-arthritis
#9
Patricia Stoor, Zlatan Hodzic, Sirpa Arte
The purpose of our retrospective study was to evaluate the results of orthognathic treatment, distraction osteogenesis, and/or prosthetic reconstruction of the temporomandibular joints in patients with juvenile idiopathic arthritis (JIA).Twelve patients with severely affected temporomandibular joints (TMJs) and reduced ramus height were treated with mandibular advancement with orthognathic surgery (11) and additional bilateral or unilateral mandibular ramus distraction (3) or additional bilateral or unilateral prosthetic reconstruction of the TMJ (3)...
January 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29026807/airway-management-in-pierre-robin-sequence-the-vancouver-classification
#10
Wai-Yee Li, Alana Poon, Douglas Courtemanche, Cynthia Verchere, Sandra Robertson, Marija Bucevska, Claudia Malic, Jugpal S Arneja
BACKGROUND: Pierre Robin sequence (PRS) is a triad of micrognathia, glossoptosis, and respiratory distress. There is no standard clinical classification used in the management of neonatal airway in patients with PRS. The goal of our study was to review the presentation and management of patients with PRS and formulate a clinical grading system and treatment algorithm. METHODS: A 10-year retrospective review of all neonates diagnosed with PRS was performed after obtaining institutional ethics approval...
February 2017: Plastic Surgery
https://www.readbyqxmd.com/read/28968331/reconstruction-of-mandibular-segmental-detects-using-transport-disk-distraction-osteogenesis
#11
Tao Li, Yi Man, Ruiye Bi, Nan Jiang, Yunfeng Li, Songsong Zhu
BACKGROUND: Distraction osteogenesis (DO) has become an important alternative for bone defect reconstruction. The study aims to investigate the clinical feasibility and efficiency of transport disc DO (TDDO) for reconstruction of segmental defect of mandible and further dental implant treatment. METHODS: A serial of 6 patients diagnosed with ameloblastoma or keratocystic odontogenic tumor were included in this study. Computed tomography (CT) scanning and panoramic radiograph were performed for preoperative evaluation and surgery planning...
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28865846/application-of-a-newly-designed-mandibular-distraction-device-for-navigation-surgery-in-goats
#12
Ming Cai, Yang Chen, Xiaofeng Lu, Lei Xu, Xudong Wang, Guofang Shen
PURPOSE: This animal study is to investigate the accuracy of navigation-guided mandibular distraction osteogenesis with a special designed distraction device by TBNavis-CMFS navigation system. MATERIALS AND METHODS: Four goats were included in this study. The 3D simulation unilateral mandibular distraction osteogenesis was simulated for 14 mm lengthening in TBNavis-CMFS navigation system. A new designed mandibular distraction device with the detachable adapter for navigation surgery in combination with the specific mandibular dynamic reference frame was applied...
October 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28864292/the-effect-of-bone-mass-and-architecture-on-mandibular-condyle-after-mandibular-distraction
#13
Daisuke Suda, Atsushi Ohazama, Takeyasu Maeda, Tadaharu Kobayashi
OBJECTIVE: Mandibular distraction surgery is a critical treatment for jaw deformity. However, abnormal mandibular condylar bone resorption is often seen as complication after surgery. Our previous study using a rat mandibular distraction model suggested that overloading leads to mandibular condylar resorption. Host factors are also believed to influence the resorption. To understand the relationship between host factors and resorption, we investigated the effect of changing bone mass and architecture on the mandibular condyle using FK506...
May 25, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28826759/condylar-positions-before-and-after-bilateral-mandibular-distraction-osteogenesis-in-children-with-pierre-robin-sequence
#14
J Liu, Y Chen, F Li, W Wu, J Hao, D Luo, H Wang
This study aimed to analyze the changes in mandibular morphology after bilateral mandibular distraction osteogenesis (BMDO) in children with Pierre Robin sequence. The positions of the condyles were analyzed in reconstructed three-dimensional craniomaxillofacial images obtained for 18 children before and 8-12 weeks after BMDO. Differences between pre- and postoperative parameters were assessed using paired t-tests. After surgery, a significant decrease in superior joint space was detected (P<0.05), but no change in anterior joint space or posterior joint space was observed...
January 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713745/recovering-breathing-and-feeding-of-a-newborn-with-pierre-robin-sequence
#15
Francisnele Maria de Aquino Fraporti Tomáz, Alvaro Henrique Borges, Alexandre Meireles Borba, Luiz Evaristo Ricci Volpato
Pierre Robin sequence (PRS) is characterized by the triad micrognathia, glossoptosis, and airway obstruction, commonly associated with cleft palate. This study reports the case of a patient with characteristics consistent with the diagnosis of PRS in the 1(st) week of life. To stabilize the airway, oro-tracheal intubation was performed without success, followed by tracheostomy and glossopexy and after a small improvement in symptoms, it was decided to perform the mandibular distraction osteogenesis (MDO). At the age of 6, her maxillofacial development was within expectations, with patent airway, the presence of deciduous teeth, and without neurological impairment...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713738/three-dimensional-planning-and-reconstruction-of-the-mandible-in-children-with-craniofacial-microsomia-type-iii-using-costochondral-grafts
#16
Omri Emodi, Yair Israel, Michal Even Almos, Dror Aizenbud, John A Van Aalst, Adi Rachmiel
BACKGROUND: In craniofacial microsomia (CFM) Type III patients, autogenous costochondral grafts (CCG) are conventionally used for the reconstruction of the ramus and condyle. The aim of this study was to describe the use of CCG in children with CFM in terms of outcomes, growth patterns, and complications. MATERIALS AND METHODS: This is a retrospective study of nine, aged 4-12 years, patients with CFM Type III, who underwent reconstruction of the mandibular ramus condyle unit by CCG...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28708644/comparison-of-the-effects-of-local-and-systemic-zoledronic-acid-application-on-mandibular-distraction-osteogenesis
#17
Serkan Dundar, Gokhan Artas, Izzet Acikan, Ferhan Yaman, Mustafa Kirtay, Muhammed Fatih Ozupek, Fatih Asutay, Mustafa Kom
Bisphosphonates are antibone resorptive drugs that are used to prevent bone tissue resorption in several skeletal diseases. The aim of this study was to examine the effects of systemic and local applications of zoledronic acid (ZA) on newly regenerated bone in a model of experimental distraction osteogenesis (DO). To do this mandibular DO was applied to 30 adult female Sprague Dawley rats, which were randomly divided into 3 groups: control, DO only, systemic zoledronic acid (SZA), and local zoledronic acid (LZA)...
October 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28688869/ankylosis-of-temporomandibular-joints-after-mandibular-distraction-osteogenesis-in-patients-with-nager-syndrome-report-of-two-cases-and-literature-review
#18
REVIEW
Cheng Chun Wu, Daisuke Sakahara, Keisuke Imai
Nager syndrome, also known as Nager acrofacial dysostosis, was first described by Nager and de Reynier in 1948. The patients commonly present with micrognathia, and a preventive tracheostomy is necessary when there are symptoms of upper airway obstruction. Mandibular distraction osteogenesis is considered as an effective procedure, which not only improves micrognathia but also minimizes the chances of tracheostomy. However, mandibular distraction osteogenesis has some complications such as relapse, teeth injury, infection, and injury of the temporomandibular joints (TMJs)...
October 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28538064/temporomandibular-joint-ankylosis-after-early-mandibular-distraction-osteogenesis-a-new-syndrome
#19
Manlio Galié, Valentina Candotto, Giovanni Elia, Luigi C Clauser
Distraction osteogenesis (DO) has been one of the most innovative concepts in cranio-maxillofacial syndromology and surgery over the last 25 years.Early mandibular distraction in severe micrognathia has recently been recognized as an effective treatment option to safely relieve upper airway obstruction associated with mandibular deficiency.An increased incidence in temporomandibular joint complications during DO in neonates has recently been reported, especially in syndromic patients.The authors report 2 children affected by severe micrognathia and severe respiratory distress at birth...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28483229/use-of-three-dimensional-cad-cam-assisted-virtual-surgical-simulation-and-planning-in-the-pediatric-craniofacial-population
#20
Rachel Gray, Alexander Gougoutas, Vinh Nguyen, Jesse Taylor, Nicholas Bastidas
OBJECTIVE: Virtual Surgical Planning (VSP) and computer-aided design/computer-aided manufacturing (CAD/CAM) have recently helped improve efficiency and accuracy in many different craniofacial surgeries. Research has mainly focused on the use in the adult population with the exception of the use for mandibular distractions and cranial vault remodeling in the pediatric population. This study aims to elucidate the role of VSP and CAD/CAM in complex pediatric craniofacial cases by exploring its use in the correction of midface hypoplasia, orbital dystopia, mandibular reconstruction, and posterior cranial vault expansion...
June 2017: International Journal of Pediatric Otorhinolaryngology
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