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Bruce MK, Islam R, Anstadt EE, Kenkre TS, Pfaff MJ, Canavan T, Goldstein JA. Mandibular Measurements at the 20-Week Anatomy Ultrasound as a Prenatal Diagnostic Predictor of Pierre Robin Sequence. Cleft Palate Craniofac J 2023; 60:352-358. [PMID: 34860601 DOI: 10.1177/10556656211064771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Pierre Robin Sequence (PRS) is characterized by micrognathia, glossoptosis, and upper airway obstruction. Early recognition and appropriate perinatal management is crucial for optimizing outcomes. This study aimed to evaluate 20-week fetal ultrasounds to determine if specific mandibular measurements could predict PRS diagnosis and disease severity. METHODS A retrospective case-control study of 48 patients with PRS and gender-matched controls was performed. Medical records were reviewed for respiratory and surgical interventions. Three parameters to assess micrognathia were measured on mid-sagittal profile ultrasound images: frontal nasal-mental angle (FNMA), facial-maxillary angle (FMA), and alveolar overjet. Student's t-test and univariate logistic regression was performed. P ≤ 0.05 was considered statistically significant. RESULTS Patients with PRS demonstrated a significantly smaller mean FNMA compared to the control group, 129.3 ± 8.6° and 137.4 ± 3.2°, respectively (p < 0.0001), as well as significantly smaller mean FMA, 63.2 ± 9.2° and 74.8 ± 6.1°, respectively (p < 0.0001). The PRS group also demonstrated significantly larger mean alveolar overjet compared to the control group, 3.9 ± 1.4 mm and 2.1 ± 0.9 mm, respectively (p < 0.0001). The odds of respiratory intervention increased among cases when FMA was <68°. Additionally, there was a significant difference in median overjet between patients with PRS who did and did not require respiratory intervention. CONCLUSIONS Mandibular features on the 20-week ultrasound can be measured to predict diagnosis and severity of PRS. This is an important first step to prepare for potential respiratory intervention at delivery to minimize perinatal hypoxia. Alveolar overjet, previously not described in prenatal ultrasound literature, is measurable and has utility in prenatal screening for PRS, as do FMA and FNMA.
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Affiliation(s)
| | - Raeesa Islam
- 12317University of Pittsburgh School of Medicine
| | | | - Tanya S Kenkre
- Epidemiology Data Center, 171673University of Pittsburgh Graduate School of Public Health
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Safran T, Alabdulkarim A, Galli R, Gilardino MS. The Radiographic "Air Sign" in Neonatal Mandibular Distraction Osteogenesis. Plast Surg (Oakv) 2023; 31:98-100. [PMID: 36755816 PMCID: PMC9900032 DOI: 10.1177/22925503211048529] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Timing of extubation on post-mandibular distraction osteogenesis (MDO) surgery is critical, given that at baseline these infants have difficult airways and failed extubation requires either re-intubation of an already complex airway with a fragile, recently osteotomized mandible, or adjunctive airway measures such as CPAP that may apply unwanted pressure to the surgical site. Thus, the goal is to plan extubation when the risk of failure is minimal. Currently, there is a void in the literature addressing the timing of extubation post-MDO and no objective sign of extubation readiness has been elucidated. This study describes a simple clinical pearl to assist in the evaluation of extubation readiness in these patients. Postoperatively, we obtain weekly radiographs to assess distractor stability and advancement, and to assess for the "Air Sign". The Air Sign describes a radiolucent space (air) visualized in the oropharynx on lateral radiographs, likely indicating that the tongue based airway obstruction has been relieved by mandibular advancement.
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Affiliation(s)
- Tyler Safran
- McGill University Health Center, Montreal, Canada
| | | | - Rafael Galli
- McGill University Health Center, Montreal, Canada
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3
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Efficacy and Complications of Mandibular Distraction Osteogenesis for Airway Obstruction in the Robin Sequence Population. J Craniofac Surg 2022; 33:1739-1744. [DOI: 10.1097/scs.0000000000008611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/12/2022] [Indexed: 11/25/2022] Open
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The Surgical Treatment of Robin Sequence: Neonatal Mandibular Distraction Osteogenesis in the Unfavorable Patient. J Craniofac Surg 2021; 32:2326-2329. [PMID: 34705382 DOI: 10.1097/scs.0000000000007670] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION Neonates with severe Pierre Robin sequence (PRS) can be treated by mandibular distraction osteogenesis (MDO), tongue-lip adhesion, or tracheostomy; however, there is an active debate regarding the indications of MDO in this patient population. Published algorithms identify tracheomalacia, bronchomalacia, laryngomalacia, hypotonic syndromes, and central sleep apnea as contraindications for MDO and indications for tracheostomy, but these comorbidities may exist along a spectrum of severity. The authors propose that appropriately selected neonates with PRS who concurrently express 1 or more of these traditional contraindications may be successfully treated with MDO. METHODS The authors performed a 5-year retrospective chart review of all neonates who underwent MDO for treatment of severe PRS. All patients expressed a comorbidity previously identified as an indication for tracheostomy. Pre- and postoperative characteristics were recorded. Apnea/hypopnea index (AHI) before and after MDO were compared using 2-tailed repeated measures t-test. RESULTS The authors identified 12 patients with severe PRS and conditions associated with contraindications to MDO: 9 (75.0%) patients had laryngomalacia, 6 (50.0%) patients had tracheomalacia, 2 (16.6%) patients had bronchomalacia, 1 (8.3%) patient had central sleep apnea, and 3 (25.0%) patients had hypotonia. Five (41.7%) patients underwent concurrent gastrostomy tube placement due to feeding insufficiency. Average birthweight was 3.0 kg. Average pre-op AHI was 34.8. Average post-op AHI was 7.3. All patients successfully underwent MDO with avoidance of tracheostomy. CONCLUSIONS By employing an interdisciplinary evaluation of patient candidacy, MDO can safely and effectively treat upper airway obstruction and avoid tracheostomy in higher-risk neonatal patients with traditional indications for tracheostomy.
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Upadya VH, Bhat HK, Rao BS, Reddy SG. Classification and surgical management of temporomandibular joint ankylosis: a review. J Korean Assoc Oral Maxillofac Surg 2021; 47:239-248. [PMID: 34462381 PMCID: PMC8408644 DOI: 10.5125/jkaoms.2021.47.4.239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/30/2020] [Accepted: 11/02/2020] [Indexed: 11/07/2022] Open
Abstract
The paper reviews various classifications and surgical techniques for the treatment of temporomandibular joint ankylosis. PubMed, EBSCO, Web of Science, and Google Scholar were searched using a combination of keywords. Articles related to classification, resection-reconstruction of the temporomandibular joint, and management of airway obstruction were considered and categorized based on the objectives. Seventy-nine articles were selected, which included randomized clinical trials, non-randomized controlled cohort studies, and case series. Though several classifications exist, most classifications are centered on the radiographic extent of the ankylotic mass and do not include the clinical and functional parameters. Hence there is a need for a comprehensive staging system that takes into consideration the age of the patient, severity of the disease, clinical, functional, and radiographic findings. Staging the disease will help the clinician to adopt a holistic approach in treating these patients. Interpositional arthroplasty (IA) results in better maximal incisal opening compared with gap arthroplasty, with no significant difference in recurrent rates. Distraction osteogenesis (DO) is emerging as a popular technique for the restoration of symmetry and function as well as for relieving airway obstruction. IA, with a costochondral graft, is recommended in growing patients and may be combined with or preceded by DO in cases of severe airway obstruction. Alloplastic total joint replacement combined with fat grafts and simultaneous osteotomy procedures are gaining popularity. A custom-made total joint prosthesis using CAD/CAM can efficiently overcome the shortcomings of stock prostheses.
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Affiliation(s)
- Varsha Haridas Upadya
- Department of Oral and Maxillofacial Surgery, Yenepoya Dental College and Hospital, Yenepoya (Deemed to be University), Mangalore, India
| | - Hari Kishore Bhat
- Department of Oral and Maxillofacial Surgery, Yenepoya Dental College and Hospital, Yenepoya (Deemed to be University), Mangalore, India
- Center for Craniofacial Anomalies, Yenepoya (Deemed to be University), Mangalore, India
| | | | - Srinivas Gosla Reddy
- Faculty of Dentistry, All India Institute of Medical Sciences (AIIMS) Rishikesh, Rishikesh, India
- GSR Institute of Craniofacial Surgery, Hyderabad, India
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Abbas DB, Lavin C, Fahy EJ, Choo H, Truong MT, Bruckman KC, Khosla RK, Lorenz HP, Momeni A, Wan DC. A Systematic Review of Mandibular Distraction Osteogenesis Versus Orthodontic Airway Plate for Airway Obstruction Treatment in Pierre Robin Sequence. Cleft Palate Craniofac J 2021; 59:365-376. [PMID: 34075816 DOI: 10.1177/10556656211011886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Mandibular distraction osteogenesis (MDO) is frequently performed to address airway obstruction in patients with Pierre Robin sequence (PRS), though more recently the technique of orthodontic airway plating (OAP) has gained traction. We aimed to evaluate OAP compared to MDO for airway obstruction in PRS. DESIGN A systematic literature search across PubMed, Embase, and Google Scholar identified all studies published in English, which involved MDO or any form of OAP as treatments for PRS. All relevant articles were reviewed in detail and reported on, adhering to PRISMA guidelines. MAIN OUTCOME MEASURES Airway (tracheostomy avoidance, decannulation rate), feeding (full oral feeding tolerance). RESULTS Literature search identified 970 articles, of which 42 MDO studies and 9 OAP studies met criteria for review. A total of 1159 individuals were treated with MDO, and 322 individuals were treated with OAP. Primary outcomes appear similar for MDO and OAP at face value; however, this must be interpreted with different pretreatment contexts in mind. CONCLUSIONS Orthodontic airway plating may be considered for airway obstruction in PRS, as some airway-related and feeding-related outcomes appear similar with MDO, per existing evidence in the literature. However, since PRS severity differed between studies, OAP cannot be uniformly considered a replacement for MDO. Further research is required to more comprehensively assess these treatment modalities inclusive of metrics that allow for direct comparison.
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Affiliation(s)
- Darren B Abbas
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Christopher Lavin
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Evan J Fahy
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - HyeRan Choo
- Division of Plastic and Reconstructive Surgery, Department of Surgery, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Mai Thy Truong
- Division of Pediatric Otolaryngology, Department of Otolaryngology, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Karl C Bruckman
- Division of Plastic and Reconstructive Surgery, Department of Surgery, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Rohit K Khosla
- Division of Plastic and Reconstructive Surgery, Department of Surgery, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - H Peter Lorenz
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Arash Momeni
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, 10624Stanford University School of Medicine, Stanford, CA, USA
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Soto E, Ananthasekar S, Kurapati S, Robin NH, Smola C, Maddox MH, Boyd CJ, Myers RP. Mandibular Distraction Osteogenesis as a Primary Intervention in Infants With Pierre Robin Sequence. Ann Plast Surg 2021; 86:S545-S549. [PMID: 33833161 PMCID: PMC8601586 DOI: 10.1097/sap.0000000000002702] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Pierre Robin sequence (PRS) is a triad of congenital facial abnormalities that can present as a syndrome (syndromic PRS [sPRS]) or an isolated entity (isolated PRS [iPRS]). Patients with PRS can develop airway and feeding problems that may result in failure to thrive. Mandibular distraction osteogenesis (MDO) is a method for improving the functional issues associated with breathing and feeding. There is a Paucity of literature evaluating the outcomes of MDO between sPRS and iPRS patients. METHODS An institutional review board-approved retrospective review of PRS patients managed by a single surgeon and treated with MDO between January 2015 and December 2019 at a tertiary referral hospital was performed. The patients were stratified into iPRS or sPRS based on gene testing. Airway outcome measures included avoidance of tracheostomy, relief of sleep apnea, and oxygen saturation improvement. Primary feeding measures included achievement of full oral feeds and growth/weight gain. Statistical analysis included t tests and χ2 tests where appropriate using SPSS. RESULTS Over the study period, of the 29 infants with PRS, 55% identified as iPRS and 45% as sPRS. There were no significant differences in the patient characteristics, apnea-hypoxia index (22.27 ± 12.27) and laryngeal view (3 ± 0.79) pre-MDO. After MDO, 83% of the subjects achieved a positive feeding outcome and 86% achieved a positive airway outcome with no statistical significance between sPRS and iPRS (P = 0.4369). There was a statistically significant change post-MDO in apnea-hypoxia index (5.24 ± 4.50, P = 0.02) and laryngeal view (1.59 ± 1.00, P = 0.01). CONCLUSIONS Our recent experience would lead us to believe that sPRS patients have greater morbidities and challenging clinical developments that, when properly evaluated, can be managed by MDO. There is a potential role for MDO in reducing the need for traditional surgical interventions for respiratory and feeding problems in both iPRS and sPRS patients.
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Affiliation(s)
- Edgar Soto
- University of Alabama at Birmingham School of Medicine, Birmingham, AL
| | | | - Srikanth Kurapati
- Division of Plastic Surgery, Baylor College of Medicine, Houston, TX
| | - Nathaniel H. Robin
- Department of Genetics, University of Alabama at Birmingham School of Medicine
| | - Cassi Smola
- Division of Pediatric Hospital Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Mary Halsey Maddox
- Division of Pediatric Pulmonary & Sleep Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Carter J. Boyd
- Division of Plastic Surgery, New York University, New York, NY
| | - René P. Myers
- Division of Plastic Surgery, University of Alabama at Birmingham, Birmingham, AL
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Xu Y, Tan Y, Zhang N, Mao Z, Zhang S, Liang Y. A Standardized Extubation Schedule Reduces Respiratory Events After Extubation Following Mandibular Distraction in Infants. J Oral Maxillofac Surg 2021; 79:2257-2266. [PMID: 34119477 DOI: 10.1016/j.joms.2021.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/02/2021] [Accepted: 05/03/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE The rational time for intubation during early mandibular distraction osteogenesis (MDO) in infants is unknown. To investigate the differences in clinical outcomes following MDO before and after a standardized extubation protocol implementation in infants. METHODS A retrospective cohort study was performed for infant patients under 1 year old undergoing MDO. The study population was composed of all patients presenting for evaluation and management who underwent MDO between November 2016 and February 2021. We divided them into 2 groups: the pre-protocol group and the protocol group. The inpatient charts of infants were assessed. The primary outcome was respiratory events after extubation. The secondary outcomes were duration of mechanical ventilation (MV), postoperative length of stay (LOS), and success rate of the first extubation. Other variables included age, sex, weight, height, and information related to diagnosis, distraction, anesthesia, and operation. The logistic regression model and linear regression model were used to calculate unadjusted and adjusted relative risk (RR) and mean difference (MD) for associations between 2 groups and the primary and secondary outcomes. RESULTS There were 142 infants in the pre-protocol group and 135 infants in the protocol group. The patients in the protocol group were heavier in weight than those in the pre-protocol group (P<.05). The Cormack-Lehane grade and the duration of operation and anesthesia were higher and longer in the pre-protocol group than in the protocol group (P<.05). Respiratory events after extubation were significantly more common in the pre-protocol group than in the protocol group [21.1 vs. 9.6%, adjusted relative risk 0.46 (95% CI 0.22-0.89), P <.01]. CONCLUSIONS Among infants undergoing MDO, the standardization of extubation practices can reduce respiratory events after extubation compared with traditional management.
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Affiliation(s)
- Yingyi Xu
- Department of Anaesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yonghong Tan
- Department of Anaesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Na Zhang
- Department of Anaesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Zhe Mao
- Department of Stomatology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Siyi Zhang
- Department of Anaesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Yufeng Liang
- Department of Paediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
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Mao Z, Zhang N, Shu L, Cui Y. Imaging characteristics of the mandible and upper airway in children with Robin sequence and relationship to the treatment strategy. Int J Oral Maxillofac Surg 2020; 49:1122-1127. [PMID: 32089444 DOI: 10.1016/j.ijom.2020.02.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 12/22/2019] [Accepted: 02/10/2020] [Indexed: 11/30/2022]
Abstract
Some patients with Robin sequence (RS) may respond to conservative therapy, while others require surgery; however, there are currently no objective anatomical criteria to gauge surgical indication. The purpose of this study was to explore the imaging characteristics of the mandible and upper respiratory tract in children with RS and examine how individual morphometric parameters influence the treatment strategy. Cone beam computed tomography (CBCT) images were obtained from 57 children with RS. Twenty parameters were measured as potential surgical indicators. The children were divided into two groups according to surgical requirement: a non-surgical group (26 children) and a surgical group (31 children who underwent mandibular osteodistraction). Differences in the imaging parameters were compared between the groups. The mandibular ramus was shorter bilaterally (left, P = 0.047; right, P = 0.027) and the mandibular body was longer bilaterally (left, P = 0.030; right, P = 0.025) in the surgical group when compared to the non-surgical group. In addition, the mandibular angle bilaterally (left, P = 0.023; right, P = 0.003) and the cross-sectional area at the epiglottis tip (P = 0.010) were smaller in the surgical group. Compared to RS patients receiving conservative treatment, children requiring surgery have specific anatomical features of the mandible and upper airway that can be used as surgical indications.
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Affiliation(s)
- Z Mao
- Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China
| | - N Zhang
- Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China
| | - L Shu
- Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China
| | - Y Cui
- Guangzhou Women and Children's Medical Centre, Guangzhou, Guangdong, China.
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Risk Factors for Perioperative Respiratory Failure following Mandibular Distraction Osteogenesis for Micrognathia. Plast Reconstr Surg 2019; 143:1725-1736. [DOI: 10.1097/prs.0000000000005651] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Surgical Management and Outcomes of Pierre Robin Sequence: A Comparison of Mandibular Distraction Osteogenesis and Tongue-Lip Adhesion. Plast Reconstr Surg 2019; 142:480-509. [PMID: 29870511 DOI: 10.1097/prs.0000000000004581] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
There is a paucity of literature directly comparing tongue-lip adhesion versus mandibular distraction osteogenesis in surgical treatment of patients with Pierre Robin sequence. This study comprehensively reviews the literature for evaluating airway and feeding outcomes following mandibular distraction osteogenesis and tongue-lip adhesion. A search was performed using the MEDLINE and Embase databases for publications between 1960 and June of 2017. English-language, original studies subjects were included. Extracted data included prevention of tracheostomy (primary airway outcome) and ability to feed exclusively by mouth (primary feeding outcome). A total of 67 studies were included. Ninety-five percent of subjects (657 of 693) treated with mandibular distraction osteogenesis avoided tracheostomy, compared to 89% of subjects (289 of 323) treated with tongue-lip adhesion. Eighty-seven percent of subjects (323 of 370) treated with mandibular distraction osteogenesis achieved full oral feeds at latest follow-up. Seventy percent of subjects (110 of 157) treated with tongue-lip adhesion achieved full oral feeds at latest follow-up. The incidence of second intervention for recurrent obstruction ranged from 4 to 6 percent in mandibular distraction osteogenesis studies, compared to a range of 22 to 45 percent in tongue-lip adhesion studies. Variability of patient selection, surgical techniques, outcomes measurement methods, and follow-up length across studies precluded meta-analysis of the data. Both mandibular distraction osteogenesis and tongue-lip adhesion are effective alternatives to tracheostomy for patients who fail conservative management and improve feeding. Mandibular distraction osteogenesis may be superior to tongue-lip adhesion in long-term resolution of airway obstruction and avoidance of gastrostomy, but is associated with notable complications.
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Susarla SM, Evans KN, Kapadia H, Vasilakou N, Egbert MA, Hopper RA. Distraction Osteogenesis Normalizes Mandibular Body-Symphysis Morphology in Infants With Robin Sequence. J Oral Maxillofac Surg 2018; 76:169-179. [DOI: 10.1016/j.joms.2017.06.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/26/2017] [Accepted: 06/26/2017] [Indexed: 11/28/2022]
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