Article
Dentistry, Oral Surgery & Medicine
Villamil Vanesa, Martinez Padilla Irene, Ayats Soler Marta, Parri Ferrandis Francisco Jose, Bejarano Serrano Miguel, Riba Martinez Mireia, Rubio-Palau Josep
Summary: The study aimed to describe the utility of 3D technology in mandibular distraction for patients with mandibular hypoplasia, using 3D-printed cutting guides, and to assess the differences between virtual surgical planning and the final result. The results showed that VSP and 3D-printed CGs have revolutionized surgical planning, facilitating surgical treatment and improving the final result. In this sample, minor variations in osteotomy line, distractor position, and posterior screw placement were found, making the outcome more predictable.
JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Xiaohui Qiu, Huijun Sun, Min Zhu, Xiaojun Chen, Gang Chai, Xianxian Yang, Yan Zhang
Summary: This study aimed to evaluate the effectiveness of using elastic traction during the active period of distraction osteogenesis in increasing vertical extension. Results showed that elastic traction-assisted distraction osteogenesis improved traction efficiency and facial symmetry in patients with Pruzansky-Kaban Type II mandibular deformity.
JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY
(2021)
Article
Surgery
Robert C. Siska, Shamit S. Prabhu, Lyfong S. Lor, Veronica Emmerich, Dominic Massary, Brian S. Pan, Roberto L. Flores, Christopher M. Runyan
Summary: Computer-aided modeling and computed tomography scans can be used to evaluate an infant's mandibular anatomy and select an osteotomy technique that reduces surgical risks.
PLASTIC AND RECONSTRUCTIVE SURGERY
(2022)
Article
Surgery
Wei Liu, Xi Xu, Shanbaga Zhao, Qi-Li Peng, Kai-Yi Shu, Bing-Yang Liu, Xiao-Jun Tang, Lin Yin, Shi Feng, Zhi-Yong Zhang
Summary: The study investigated the short-term therapeutic outcomes of 36 patients with severe HFM who underwent MDO treatment. The results showed that MDO significantly improved facial skeleton deficiency and was stable in the short-term follow-up. MDO is a proper primary method for suitable type IIb and type III HFM cases.
JOURNAL OF CRANIOFACIAL SURGERY
(2022)
Article
Surgery
Bingqing Wang, Wei Liu, Zhibin Li, Jin Qian, Yue Wang, Tun Liu, Qingguo Zhang, Zhiyong Zhang
Summary: The efficacy of expanded two-flap auricular reconstruction combined with mandibular distraction osteogenesis in the treatment of hemifacial microsomia (HFM) was explored in this study. The three-stage surgical strategy proved to be safe and effective in achieving facial symmetry and improving occlusal contact. The majority of patients and their families were satisfied with the results, with a low incidence of complications.
JOURNAL OF PLASTIC RECONSTRUCTIVE AND AESTHETIC SURGERY
(2022)
Article
Pediatrics
Xuetong Wang, Byeong Seop Kim, Ziwei Zhang, Hayson Chenyu Wang, Yan Zhang, Gang Chai
Summary: This study retrospectively compared the use of piezoelectric osteotome with conventional reciprocal bone saw in hemifacial microsomia patients and found that piezosurgery resulted in less intraoperative blood loss and shorter operation duration. There were no significant differences in hospitalization duration, total expenses, or complication rates between the two groups. Postoperative pain scores decreased over time, with the piezosurgery group experiencing significantly less pain than the conventional group.
FRONTIERS IN PEDIATRICS
(2023)
Article
Pediatrics
Ziwei Zhang, Zhijie Zhao, Wenqing Han, Byeong Seop Kim, Yingjie Yan, Xiaojun Chen, Li Lin, Weimin Shen, Gang Chai
Summary: This study aimed to verify the accuracy and safety of distraction osteogenesis for hemifacial microsomia assisted by a robotic navigation system based on artificial intelligence. The results of a small sample early-phase single-arm clinical study showed that robotic navigation-assisted distraction osteogenesis is safe and meets the clinical requirements.
FRONTIERS IN PEDIATRICS
(2023)
Article
Surgery
Byeong Seop Kim, Ziwei Zhang, Mengzhe Sun, Wenqing Han, Xiaojun Chen, Yingjie Yan, Yunyong Shi, Haisong Xu, Li Lin, Gang Chai
Summary: This study aimed to investigate the feasibility and accuracy of robotic navigation system in a model surgical experiment of mandibular distraction osteogenesis. The accuracies of the osteotomy and distractor placement were assessed based on distance and angular error. The results highlight the feasibility of robot-assisted distraction osteogenesis for improved surgical precision in clinical settings.
JOURNAL OF CRANIOFACIAL SURGERY
(2023)
Article
Surgery
Richard A. Hopper, Howard D. Wang, Ezgi Mercan, Hitesh Kapadia
Summary: Early experience with C3DO has shown a high decannulation success rate in patients with Treacher Collins syndrome and craniofacial microsomia. For tracheostomy-dependent patients with clockwise rotational deformity of the subcranial facial skeleton, C3DO has become the authors' preferred operation over mandibular distraction at age 7 or older.
CLINICS IN PLASTIC SURGERY
(2021)
Article
Surgery
Carlos Barrero, Giap Vu, Mychajlo Kosyk, Laura Humphries, Hyeran Helen Jeon, Normand Boucher, Jesse Taylor, Hyun-Duck Nah
Summary: This study used imaging to analyze the upper airway of patients with HFM before and after surgical intervention with MDO. Head and neck posture was found to be a significant predictor of all airway dimensions. Oblique vector MDO was associated with changes in the surface area of the upper airway, but not with changes in volume, CSA, or anteroposterior dimension.
JOURNAL OF CRANIOFACIAL SURGERY
(2022)
Article
Medicine, Research & Experimental
Rongyang Wang, Shixing Xu, Ruimei Yang
Summary: Current research on hemifacial microsomia (HFM) patients after distraction osteogenesis (DO) focuses on morphological changes. This case report demonstrates that DO can effectively treat obstructive sleep apnea (OSA) in HFM patients by expanding the upper airway and reducing respiratory resistance. The findings are based on polysomnography and CT scans performed on an 11-year-old boy with HFM and OSA, showing improved oxygen saturation and reduced apnea and hypopnea events after DO.
EUROPEAN JOURNAL OF MEDICAL RESEARCH
(2021)
Article
Surgery
Kai-yi Shu, Wei Liu, Jiu-li Zhao, Zhi-yong Zhang, Xi-yuan Li, Ba-ga Shan, Lun-Kun Ma, Ying-xiang Liang
Summary: This observational retrospective cross-sectional study aimed to investigate morphologic changes in the temporomandibular joint (TMJ) post-mandibular distraction osteogenesis (MDO) in type IIa hemifacial microsomia (HFM) patients. The results showed that the spaces between the affected condyle and the affected glenoid fossa were significantly larger before MDO. The breadth and height of the affected glenoid fossa and condyle were also significantly longer before MDO. The ratio between the volume of the affected condyle and unaffected condyle before MDO was 0.20 +/- 0.13, and the ratio before MDO and mandibular distractor extraction (MDE) was 0.65 +/- 0.32. The resorption rate of the affected condyle post-MDO was 0.35 +/- 0.32.
JOURNAL OF CRANIOFACIAL SURGERY
(2023)
Article
Surgery
Yasser Nabil El Hadidi, Mohamed Gamal Askar
Summary: This study compared the stress distribution and bone displacement effects of intraoral and extraoral distractors in mandibular distraction through finite element analysis. The results showed that the intraoral system caused lower stress in the mandibular bone compared to the extraoral system, with higher stress concentration on the fixing screws. Overall, it is recommended to use intraoral distractors in general situations due to their stress shielding effect and lower displacement, while external devices are advised for longer distraction distances with lower stresses.
JOURNAL OF CRANIOFACIAL SURGERY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Lun-kun Ma, Zhi-yong Zhang, Xiao-jun Tang, Xi Xu, Shi Feng, Shan-baga Zhao, Kai-yi Shu, Bing -yang Liu, Tian-ying Zang, Wei Liu
Summary: This study aimed to evaluate the effect of mandibular distraction osteogenesis (MDO) on respiratory function in CFM patients with obstructive sleep apnea (OSA) according to polysomnography (PSG). A total of 25 unilateral CFM patients were included in this study. Most patients (72%) had mild OSA; moderate and severe OSA were 12% and 16%, respectively. After completion of mandibular distraction, snoring and other OSA-related symptoms were significantly improved. The statistical results showed that OAHI (P = 0.045) decreased and LSaO2 (P = 0.009) increased significantly compared to preoperative values. MDO can improve OSA-related symptoms in CFM patients. In addition, respiratory function was improved in most patients after MDO, based on PSG.
JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY
(2023)
Article
Dentistry, Oral Surgery & Medicine
Kai-yi Shu, Wei Liu, Jiu-li Zhao, Zhi-yong Zhang, Ba-ga Shan, Xi-yuan Li, Lun-Kun Ma
Summary: The aim of this study was to investigate the characteristics of condylar resorption in CFM patients following MDO. The study found that condylar resorption in CFM patients was associated with condylar height and distraction distance.
JOURNAL OF CRANIO-MAXILLOFACIAL SURGERY
(2023)