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Distraction osteogenesis

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https://www.readbyqxmd.com/read/28208057/vertical-alveolar-distraction-osteogenesis-of-the-atrophic-posterior-mandible-before-dental-implant-insertion
#1
Adi Rachmiel, Dekel Shilo, Dror Aizenbud, Omri Emodi
PURPOSE: Augmentation of deficient mandibular posterior alveolar ridges poses a great challenge because of extensive bone deficiency and the presence of the inferior alveolar nerve. This study sets its focus on vertical alveolar distraction osteogenesis (ADO) at the posterior mandible before dental implant placement. MATERIALS AND METHODS: The study included 21 sites in 18 patients with severe mandibular posterior alveolar ridge deficiency. A trapezoidal osteotomy was performed, and an extraosseous alveolar distraction device was fixed and activated after a 4-day latency period at a rate of 0...
January 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28203515/curvilinear-segmental-mandibular-reconstruction-utilizing-distraction-osteogenesis-and-early-open-callus-manipulation
#2
Alberto Rocha Pereira, Paulo Neves, José Rosa, Scott Bartlett
The authors present a new technique for reconstruction of large curvilinear mandibular defects with distraction osteogenesis and early open callus manipulation. In phase 1, transport disks are created from mandibular bone and distracted across the entire length of the defect, without the restriction from a mandible plate fixation. This allows for full-length distraction until enough regenerate is obtained to reconstruct the defect without the need for additional bone grafts. Taking advantage of the soft moldable regenerate, the second and final operative procedure allows for the manipulation, repositioning, and fixation of the transported segments in the ideal position creating perfect tridimensional form and symmetry of the mandible arch...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28198643/the-role-of-curvilinear-distraction-system-in-pediatric-obstructive-sleep-apnea-a-case-report
#3
David Serrano Faustino Ângelo, Bruno Rosa, Rogério Santos, Carlos Diogo Matos
OBJECTIVE: The authors present a case of obstructive sleep apnea associated with severe mandibular micrognathia treated by mandibular bone distraction with curvilinear system planned under computer assistance. CLINICAL PRESENTATION: A 15-year-old child with limited compliance to continuous positive airway therapy was referred to the authors' department. Observation revealed severe mandibular micrognathia as the major cause for obstructive sleep apnea syndrome. The first polysomnography study revealed 14 obstructive apneas, 16 obstructive hypopneas, and 4...
February 15, 2017: Cranio: the Journal of Craniomandibular Practice
https://www.readbyqxmd.com/read/28169263/comparison-of-soft-tissue-changes-in-simultaneous-maxillomandibular-distraction-with-mandibular-distraction-with-second-stage-maxillary-osteotomy
#4
S M Balaji, Preetha Balaji
BACKGROUND: The purpose of this study was to compare the frontal lip cant changes in common facial asymmetry (FA) cases after simultaneous maxillomandibular distraction osteogenesis (DO) and mandibular DO with maxillary orthognathic surgery. MATERIALS AND METHODS: Retrospective analysis of FA cases at tertiary craniofacial referral was performed. Patients of either gender with all medical imaging records and pre- and post-operative (1 year) facial photographs in natural head position were included in the study...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28165797/strategies-of-enhancing-bone-regenerate-formation-in-distraction-osteogenesis
#5
Mohammad Mesfer Alzahrani, Emad Anam, Saad M AlQahtani, Asim M Makhdom, Reggie C Hamdy
Distraction osteogenesis (DO) is a commonly used technique in multiple orthopaedic specialties, including trauma, oncology and pediatrics. This technique aims to produce new bone formation in the distraction gap in a controlled manner. The issue with this technique has been the high risk of complications, one of which is poor regenerate formation during the distraction process. Although several factors (including patient and operative factors) and techniques (including surgical, mechanical and pharmacological) have been described to ensure successful regenerate formation during the process of DO, these factors are sometimes difficult to control clinically...
February 6, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28160590/is-it-possible-to-change-of-the-duration-of-consolidation-period-in-the-distraction-osteogenesis-with-the-repetition-of-extracorporeal-shock-waves
#6
M-E Onger, C Bereket, I Sener, N Ozkan, E Senel, A-V Polat
BACKGROUND: In this study we examined the effects of two different repeated Extracorporeal Shock Waves (ESW) on the consolidation period of the distraction osteogenesis (DO) of the rabbit mandible using stereological, radiological and immunohistochemical methods. MATERIAL AND METHODS: DO was performed unilaterally in the mandible of 18 New Zealand rabbits (six months old, weighing between 2.5-3 kg). In the consolidation period, rabbits were divided into three groups randomly after the distraction period...
February 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28153168/transport-distraction-osteogenesis-combined-with-orthodontic-treatment-in-a-patient-with-unilateral-temporomandibular-joint-ankylosis
#7
Seo-Yeon Jung, Jung-Hyun Park, Hyung-Sik Park, Hyoung-Seon Baik
Temporomandibular joint ankylosis manifests a range of clinical characteristics dependent upon the age of onset, the affected side, and the severity. When it occurs during development, mandibular growth is affected, resulting in severe retrusion or asymmetry as well as limitation of mandibular movements. Progressive asymmetric mandibular growth in unilateral ankylosis causes canting of the occlusal plane. In this case report, we present a successful temporomandibular joint reconstruction using transport distraction osteogenesis combined with camouflage orthodontic treatment for occlusal canting correction of a patient with unilateral temporomandibular joint ankylosis and severe facial asymmetry...
February 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28144578/unhappy-triad-in-limb-reconstruction-management-by-ilizarov-method
#8
Barakat Sayed El-Alfy
AIM: To evaluate the results of the Ilizarov method in management of cases with bone loss, soft tissue loss and infection. METHODS: Twenty eight patients with severe leg trauma complicated by bone loss, soft tissue loss and infection were managed by distraction osteogenesis in our institution. After radical debridement of all the infected and dead tissues the Ilizarov frame was applied, corticotomy was done and bone transport started. The wounds were left open to drain...
January 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28141644/midfacial-changes-through-anterior-maxillary-distraction-osteogenesis-in-patients-with-cleft-lip-and-palate
#9
Hiroyuki Kanzaki, Yoshimichi Imai, Tetsu Nakajo, Takayoshi Daimaruya, Akimitsu Sato, Masahiro Tachi, Youhei Nunomura, Yusuke Itagaki, Kazuaki Nishimura, Shoko Kochi, Kaoru Igarashi
Maxillary hypoplasia is a major issue in cleft lip and palate patients, and predictable surgical maxillary advancement is required. In the present study, the changes and stability of the maxilla and soft tissue profile achieved after the application of anterior maxillary distraction osteogenesis (AMDO) using intraoral expander in unilateral cleft lip and palate and isolated cleft palate patients were investigated by comparing to the Le Fort I osteotomy (LFI) and maxillary distraction osteogenesis (DO) with rigid external distraction (RED) system...
January 30, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28134640/rehabilitation-of-the-work-accident-related-traumatic-mandible-with-iliac-free-flap-distraction-osteogenesis-and-dental-implants
#10
Yavuz Findik, Timuçin Baykul, Mustafa Asim Aydin, Selman Altuntaş, Zeynep Başağaoğlu Demirekin
Mandibular bone defects due to extensive trauma impair occlusion and affect the aesthetics of facial contouring, making it difficult to obtain a satisfactory outcome. Distraction osteogenesis and free flap is an effective and aesthetic treatment option for rehabilating these defects. In this clinical report, the authors present rehabilitation of a wide mandibular traumatic defect due to a work-related accident with iliac free flap, distraction osteogenesis, and dental implants.
January 27, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28126687/the-mechanically-activated-p38-mmp-2-signaling-pathway-promotes-bone-marrow-mesenchymal-stem-cell-migration-in-rats
#11
Zihui Yang, Baolei Wu, Sen Jia, Yinghua Zhao, Rui Hou, Xiaochang Liu, Xinge Wang, Litong Chen, Xinjie Yang, Delin Lei, Lei Wang
OBJECTIVE: The aim of the present study was to investigate the effect of static strain on bone marrow mesenchymal stem cell (BMMSC) migration and whether the p38/matrix metalloproteinase-2 (MMP-2) axis plays a role in induction of BMMSC migration under mechanical strain. DESIGN: Both in vivo and in vitro investigations were performed. Twelve adult male Sprague-Dawley rats were randomly divided into 2 groups (n=6 per group). Rats in the experimental group underwent right mandibular distraction osteogenesis, whereas rats in the control group were subjected to osteotomy in the mandible without distraction...
January 22, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28110408/gingival-recessions-of-lower-incisors-after-proclination-by-orthodontics-alone-or-in-combination-with-anterior-mandibular-alveolar-process-distraction-osteogenesis
#12
Gregory S Antonarakis, Christof Urs Joss, Albino Triaca, Anne Marie Kuijpers-Jagtman, Stavros Kiliaridis
OBJECTIVES: The aim of this study was to longitudinally compare periodontal conditions in consecutive patients who had orthodontic treatment with proclination of lower incisors either by orthodontics alone or in combination with anterior mandibular alveolar process distraction osteogenesis (DO). MATERIALS AND METHODS: Nineteen patients had orthodontic treatment with DO, 18 with extraction of lower premolars (Ex), and 18 without extractions (Nonex). Lateral cephalograms were used to evaluate lower incisor proclination, while study casts and intraoral photographs were used to evaluate labial and lingual gingival recessions before (T1) and at an average of 4...
January 21, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28106628/neonatal-micrognathia-national-trends-in-early-mandibular-surgery
#13
Hillary E Jenny, Benjamin B Massenburg, E Hope Weissler, Peter J Taub
BACKGROUND: Micrognathia is a congenital anomaly that may pose breathing and feeding limitations in newborns, sometimes necessitating invasive management. The present study aims to identify the complications associated with receiving mandibular surgery during the birth stay in order to better predict which patients may benefit from early surgical intervention. METHODS: A retrospective cohort study was performed using the 2000 to 2012 kids' inpatient databases. We included all live newborn infants born in the hospital through vaginal delivery or caesarean section...
March 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28063081/submuscular-plating-of-the-femur-through-an-anterior-approach-after-bone-distraction
#14
Federico Persico, Gabriel Fletscher, Mauricio Zuluaga
The method of osteogenesis by distraction is a known technique in orthopaedics for the management of bone defects secondary to trauma, infections or tumours. New strategies have been developed for decreasing the external fixator time. The use of the minimally invasive plate osteosynthesis technique is a secure approach through a percutaneous fixation technique in the anterior aspect of the femur that permits minimal dissection of the soft tissues while preventing cross-contamination with the pin tracts of the external fixators...
January 7, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/28060091/midface-distraction-osteogenesis-using-a-modified-external-device-with-elastic-distraction-for-crouzon-syndrome
#15
Haizhou Tong, Lei Liu, Xiaojun Tang, Tao Song, Ningbei Yin, Zhiyong Zhang, Zhenmin Zhao
PURPOSE: Midface distraction osteogenesis has been popularized for the correction of midface hypoplasia associated with exophthalmos and obstructive sleep apnea in patients with Crouzon syndrome. The purpose of this study was to present the method of utilizing the modified external device with elastic distraction for the midface advancement in Crouzon syndrome, and the clinical outcomes and skeletal changes were analyzed. METHODS: Five consecutive patients with Crouzon syndrome underwent Le Fort III osteotomy with midface advancement using a modified external device with elastic distraction...
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28059851/treatment-of-unilateral-lambdoid-synostosis-using-cranium-distraction-osteogenesis-with-z-shaped-osteotomy
#16
Shen Weimin, Jie Cui, Jianbing Chen, Qingwen Gao
PURPOSE: We studied the effect of cranium distraction osteogenesis using Z-shaped osteotomy to treat unilateral lambdoid synostosis. METHODS: Simulating the occipital, parietal, and temporal bones as a hemisphere, we designed a lambdoid suture that connected parallel osteotomy and sagittal sutures or extended to fossa cranii posterioras much like the parallel lines connect the upper and lower aspects of the letter Z. Two to 3 distraction devices were then installed after the Z-shaped osteotomy suture...
March 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28053912/management-of-obstructive-sleep-apnea-in-a-treacher-collins-syndrome-patient-using-distraction-osteogenesis-of-the-mandible
#17
İbrahim Damlar, Ahmet Altan, Berk Turgay, Soydan Kiliç
In this study, we present the surgical treatment of obstructive sleep apnea in a child with Treacher Collins syndrome. A 10-year-old girl with a past history of Treacher Collins syndrome presented to our clinic with her parents for respiratory distress and insomnia. The patient was referred to a sleep laboratory where she was diagnosed with obstructive sleep apnea, which was a consequence of her Treacher Collins syndrome. The patient underwent mandibular distraction osteogenesis under general anesthesia. The mandible was expanded by 15 mm using internal bilateral distractors...
December 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28053385/outcome-of-distraction-osteogenesis-by-ring-fixator-in-infected-large-bone-defects-of-tibia
#18
Rajesh Rohilla, Karan Siwach, Ashish Devgan, Roop Singh, Jitendra Wadhwani, Naseem Ahmed
BACKGROUND: Salvage of large, infected bone defects in tibia poses a formidable problem. The present prospective study aimed to evaluate radiologic and functional outcome of ring fixator in infected, large (≥6 cm) bone defects of tibia treated with distraction osteogenesis. MATERIALS AND METHODS: The study included 35 patients (30 males and 5 females) who had minimum of 6 cm gap after radical resection of necrotic bone and presence or history of active infection...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28053384/management-of-complex-femoral-nonunion-with-monorail-external-fixator-a-prospective-study
#19
Hemendra Kumar Agrawal, Mohit Garg, Balvinder Singh, Ashish Jaiman, Vipin Khatkar, Shailender Khare, Sumit Batra, Vinod Kumar Sharma
AIM: To evaluate 30 patients who underwent distraction osteogenesis with monorail external fixator for complex femoral nonunion. METHOD: Complex femoral nonunion includes infective non-union, gap nonunion, and limb-length discrepancy secondary to traumatic bone loss, which needs specialized treatment to ensure the functional integrity of femoral bone. 30 patients, including 28 male and 2 female (aged 22-62 years) patients, underwent surgical debridement followed by bone transport with monorail fixator...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28040086/monofocal-bone-transport-technique-for-bone-defects-greater-than-5-cm-in-tibia-our-experience-in-a-case-series-of-24-patients
#20
Kemal Aktuglu, Hüseyin Günay, Jabrayil Alakbarov
BACKGROUND: As the tibial bone defect increases in size, the problems in treatment also increase. The treatment may be problematic but different treatment approaches can be used. Among these approaches, distraction osteogenesis is a method an orthopedic surgeon with limited conditions can use although it has a longer treatment period. In our case series, we evaluated current treatment approaches. METHOD: Retrospective study based on patient records and radiographs...
December 2016: Injury
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