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Mandibulectomy

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https://www.readbyqxmd.com/read/29227794/does-different-mandibulectomy-marginal-vs-segmental-affect-the-prognosis-in-patients-with-oral-squamous-cell-carcinoma
#1
Yu Qiu, Lisong Lin, Bin Shi, Xiaofeng Zhu
PURPOSE: It is unclear whether different mandibular surgical methods affect the prognosis of patients with oral squamous cell carcinoma (OSCC). Accordingly, the authors retrospectively compared the prognosis of patients who underwent marginal mandibulectomy (MG) or segmental mandibulectomy (SG) for OSCC and aimed to determine the factors influencing prognosis. MATERIALS AND METHODS: The authors conducted a retrospective cohort study of 82 patients with OSCC who underwent mandibulectomy at their hospital from January 2001 through January 2015...
November 21, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29183323/cervical-metastasis-of-gingival-carcinoma-misdiagnosed-as-branchiogenic-carcinoma-a-rare-entity-report-of-a-case-and-review-of-literature
#2
Qingjia Sun, Mingxing Chen, Yuxin Sun, Xi Chen, Hongjun Xu, Lingjun Rong, Qiong Wu, Dongdong Zhu
BACKGROUND: A cervical cystic mass is associated with a number of pathologies that present with similar symptoms. These conditions are difficult to differentiate using fine-needle aspiration (FNA), ultrasound (US), computed tomography (CT) and magnetic resonance imaging (MRI). Another dilemma in the differential diagnosis of cervical cystic masses is due to the controversies associated with the existence of branchiogenic carcinoma (BC). BC is an extremely rare disease that must be differentiated from other conditions presenting with cervical cystic masses, especially cystic metastasis from occult primary lesions...
November 28, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/29178981/translating-computer-aided-design-and-surgical-planning-into-successful-mandibular-reconstruction-using-a-vascularized-iliac-crest-flap
#3
Lei Zheng, Xiaoming Lv, Jie Zhang, Shuming Liu, Jianguo Zhang, Yi Zhang
PURPOSE: This study evaluated the computer-aided approach to the reconstruction of mandibular defects using a vascularized iliac-crest flap. MATERIALS AND METHODS: From December 2015 to October 2016, 14 patients (8 men and 6 women) 18 to 64 years old (median age, 29 yr) were treated at the Peking University School and Stomatology Hospital (Beijing, China). Biopsy specimens from all patients were subjected to histologic examination before segmental mandibulectomy...
November 3, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29165823/identification-of-predisposing-factors-for-osteonecrosis-of-the-jaw-after-marginal-mandibulectomy-in-the-surgical-management-of-oral-squamous-cell-carcinoma
#4
Ran Ito, Jung-Ju Huang, Wei-Chuan Hsieh, Huang-Kai Kao, William Wei-Kai Lao, Ku-Hao Fang, Yenlin Huang, Yu-Liang Chang, Ming-Huei Cheng, Kai-Ping Chang
BACKGROUND: The aim of this study is to evaluate osteonecrosis of the jaw (ONJ) with the extent of marginal mandibulectomy. METHODS: Between January 2006 and December 2012, 3087 patients undergoing ablative resection were consecutively enrolled. Among them, 345 cases undergoing marginal mandibulectomy were retrospectively reviewed. RESULTS: The occurrence of ONJ was 5.51% and associated with body mass index, overall stage, diabetes, concomitant mandibulotomy, and radiotherapy (P = 0...
November 22, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29135994/perioperative-risk-factors-for-postoperative-pneumonia-after-major-oral-cancer-surgery-a-retrospective-analysis-of-331-cases
#5
Jieyun Xu, Jing Hu, Pei Yu, Weiwang Wang, Xingxue Hu, Jinsong Hou, Silian Fang, Xiqiang Liu
OBJECTIVE: Postoperative pneumonia (POP) is common and results in prolonged hospital stays, higher costs, increased morbidity and mortality. However, data on the incidence and risk factors of POP after oral and maxillofacial surgery are rare. This study aims to identify perioperative risk factors for POP after major oral cancer (OC) surgery. METHODS: Perioperative data and patient records of 331 consecutive subjects were analyzed in the period of April 2014 to March 2016...
2017: PloS One
https://www.readbyqxmd.com/read/29114352/bone-allograft-an-option-for-total-mandibular-reconstruction
#6
Masoud Fallahi Motlagh, Mohamad Bayat, Siamak Naji
Total mandibular reconstruction is one of the most challenging modalities in maxillofacial surgery. In this article, we try to introduce a method of total mandible reconstruction. We report a 25-year-old male patient with complete involvement of the mandible by Langerhans cell tumor. The patient underwent total mandibulectomy and reconstruction with bone allograft harvested from a donor who had died the day before. The patient has good functional and aesthetic results in a long time. It seems that bone allograft can be a good alternative to other methods in total mandibular reconstruction...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29066386/use-of-cable-guide-while-performing-segmental-mandibulectomy-using-gigli-saw
#7
A Rai, M M Khan, A Jain
Segmental mandibulectomies has been performed most commonly in patients having benign or malignant pathologies of mandible. Gigli saw is used for performing segmental mandibulectomy. The two main challenging tasks in the use of Gigli saw includes passage of the device around the bone which is to be cut and the preservation of the underlying soft tissue from getting damaged by the saw during movement. Hence, we propose the use of a "Cable guide with hook" which helps in easy passage of Gigli saw around mandible...
October 21, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29051537/microarray-gene-expression-of-periosteum-in-spontaneous-bone-regeneration-of-mandibular-segmental-defects
#8
Zheyi Li, Juli Pan, Jinling Ma, Zhen Zhang, Yuxing Bai
Spontaneous bone regeneration could occur to reestablish mandibular bony continuity in patients who underwent partial or total mandibulectomy for tumors with periosteum-preserving. However, scarce data is available related to the precise role of periosteum in this bone regeneration. Therefore we aimed to investigate the gene expression of periosteum that were involved in the mandibular bone regeneration. Mandibular segmental defects were created in six mini-pigs with periosteum preserved. The periosteum of defects and control site were harvested at 1 and 2 weeks...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29038629/patient-s-self-assessment-of-social-approval-after-mandibulectomy-with-disarticulation-the-necessity-for-jaw-reconstruction-following-loss-of-facial-symmetry-in-a-resource-poor-african-setting
#9
Bayo Aluko-Olokun, Ademola A Olaitan
OBJECTIVE: Mandibulectomy with disarticulation is usually carried out without reconstruction in Low-Income-Countries. Lower standards of living are usually acceptable and adapted to, in poor societies. This study compares patient's self-assessment of social approval among reconstructed and non-reconstructed cases of mandibulectomy with disarticulation in a resource-poor African setting. MATERIAL AND METHOD: This questionnaire-based study documented patient's self-assessment of social approval of themselves following mandibulectomy with disarticulation...
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28969965/axial-four-dimensional-computed-tomographic-images-to-analyze-crosswise-differences-in-protrusive-condylar-movement-in-patients-who-underwent-mandibulectomy-and-free-flap-reconstruction
#10
Masaya Akashi, Toshinori Sekitani, Yumi Ohtsuki, Yasumasa Kakei, Junya Kusumoto, Takumi Hasegawa, Michinori Maeda, Noriyuki Negi, Kazunobu Hashikawa, Yasuyuki Shibuya, Satoru Takahashi, Takahide Komori
OBJECTIVE: Few studies evaluate condylar movement following mandibular reconstruction. The main objective of this study was to show that axial four-dimensional computed tomography (4DCT) could visualize bilateral protrusive condylar movement directly. We used axial 4DCT images to assess condylar protrusion in patients who underwent mandibular reconstruction. METHODS: We enrolled seven healthy volunteers (median age 30 years, range 27-38 years) and seven patients (median age 65 years, range 52-80 years), who underwent mandibulectomy (segmental in five, hemi in one, marginal in one) and free flap reconstruction (using the fibula in six and the radial forearm in one)...
September 1, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28967393/treatment-of-a-mandibular-discontinuity-defect-by-using-a-fibula-free-flap-and-an-implant-supported-fixed-complete-denture-fabricated-with-a-pekk-framework-a-clinical-report
#11
Kyung Chul Oh, Ji-Hyun Park, Joon-Hee Lee, Hong Seok Moon
This clinical report describes the rehabilitation of a patient with a history of mandibulectomy that involved the use of a fibula free flap and an implant-supported fixed complete denture. A recently introduced material, polyetherketoneketone, was used as the framework material for the prosthesis, and the treatment produced favorable esthetic and functional results.
September 27, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28963787/modified-technique-for-preservation-of-inferior-alveolar-nerve-during-mandibulectomy
#12
Min-Jie Chen, Chi Yang, Dong Huang, Dong-Mei He, Yi-Wen Wang, Wen-Hao Zhang
BACKGROUND: The purpose of this article is to introduce the modified technique of preservation of the inferior alveolar nerve (IAN) during mandibulectomy for a benign lesion. METHODS: Five cases of osteofibrous hyperplasia and 3 cases of centricity osteomyelitis were included. During surgery, the IAN was marked using a planned cutting guide. Using an oscillating saw, the depth of the osteotomy along the IAN was controlled until the bone cortex was cut through. After splitting, the bony section was removed, leaving the neurovascular bundle intact...
December 2017: Head & Neck
https://www.readbyqxmd.com/read/28961429/synchronous-reconstruction-of-a-total-mandibulectomy-defect-with-a-single-fibula-osteocutaneous-free-flap
#13
Ramzey Tursun, J Marshall Green, Daniel Winokur, Andre Ledoux
Osteoradionecrosis (ORN) is a well-known and usually late complication of radiation therapy in the treatment of head and neck cancer. Although the therapy can be life extending, it also produces tissue toxicity in ipsilateral and contralateral tissues in an acute and chronic fashion. In the most severe cases of ORN, such as the one presented in this report, bilateral disease results in the need for total mandibulectomy and creates a tremendous reconstructive challenge. The advent of microvascular surgery and free tissue transfer has caused an evolution of the management protocol for severe ORN cases...
September 8, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28951870/heterogeneity-of-necrotic-changes-between-cortical-and-cancellous-bone-in-mandibular-osteoradionecrosis-a-histopathological-analysis-of-resection-margin-after-segmental-mandibulectomy
#14
Masaya Akashi, Kazunobu Hashikawa, Satoshi Wanifuchi, Junya Kusumoto, Manabu Shigeoka, Shungo Furudoi, Hiroto Terashi, Takahide Komori
BACKGROUND: This study aimed to analyze differences in necrotic changes between cortical and cancellous bone in resection margins after segmental mandibulectomy for advanced mandibular osteoradionecrosis. METHODS: Anteroposterior bone specimens from eleven patients who underwent segmental mandibulectomy with simultaneous free fibula flap reconstruction for advanced osteoradionecrosis were analyzed histopathologically for the presence of necrotic bone based on the presence of blood vessels within Haversian canals...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28938332/mandibular-condyle-reconstruction-with-fibula-free-tissue-transfer-the-role-of-the-masseter-muscle
#15
Andreas Gravvanis, Dimitrios Anterriotis, Despoina Kakagia
BACKGROUND: Free fibula flap is an option for primary restoration after disarticulation mandibular resection, though literature on technique refinements is scarce. The authors hypothesized that inset of the masseter, the key mandibular elevator muscle, at the reconstructed mandible may optimize functional recovery. METHODS: All patients undergoing reconstruction of mandibulectomy-condylectomy defect (January 2009 to January 2014) by means of a fibular flap were prospectively studied...
November 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28894659/prevention-of-mandible-reconstruction-plate-exposure-by-costal-cartilage-wrapping
#16
Motonao Iwasawa, Yoshito Mishima, Miho Ohtsubo
After mandibulectomy in cancer surgery, reconstruction is often performed with a reconstruction plate covered with a soft-tissue free flap in patients in poor condition. However, the rate of complications for mandibular reconstruction is higher with a reconstruction plate than with vascularized bone grafts. We have developed a costal cartilage wrapping method to prevent exposure of the mandible reconstruction plate. The eighth costal cartilage was removed and split into 2 pieces to wrap around the reconstruction plate...
August 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28830456/body-image-in-head-and-neck-cancer-patients-treated-with-radiotherapy-the-impact-of-surgical-procedures
#17
Tsung-Min Hung, Ching-Rong Lin, Yu-Chun Chi, Chien-Yu Lin, Eric Yen-Chao Chen, Chung-Jan Kang, Shiang-Fu Huang, Yeong-Yuh Juang, Chun-Yu Huang, Joseph Tung-Chieh Chang
BACKGROUND: In this study, we aimed to investigate the impact of surgical procedures on the body image of head and neck cancer patients treated with radiotherapy and with or without radical surgery. METHODS: A cross-sectional survey of 150 patients with head and neck cancer was conducted. Sixty patients had nasopharyngeal cancer treated with definitive radiotherapy without surgery, and 90 patients had oral cavity cancer treated with radical surgery plus adjuvant radiotherapy...
August 23, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28806424/geometric-evaluation-of-the-effect-of-prosthetic-rehabilitation-on-the-facial-appearance-of-mandibulectomy-patients-a-preliminary-study
#18
Amel M Aswehlee, Mahmoud E Elbashti, Mariko Hattori, Yuka I Sumita, Hisashi Taniguchi
PURPOSE: The purpose of this study was to geometrically evaluate the effect of prosthetic rehabilitation on the facial appearance of mandibulectomy patients. MATERIALS AND METHODS: Facial scans (with and without prostheses) were performed for 16 mandibulectomy patients using a noncontact three-dimensional (3D) digitizer, and 3D images were reconstructed with the corresponding software. The 3D datasets were geometrically evaluated and compared using 3D evaluation software...
September 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28765185/a-delayed-presentation-of-ameloblastic-fibrosarcoma-in-an-african-patient
#19
Nkhensani Yvonne Chauke, Chrysis Sofianos, Dimitri Liakos, Elias Ndobe
A 24-year-old womanpresented with ameloblastic fibrosarcoma arising from ameloblastic fibroma. The delayed presentation accounted for the extensive destruction of the mandible and complete occlusion of her oral cavity. This resulted in an inability to eat and maintain oral hygiene. A multidisciplinary team management approach involved nutritional optimisation, segmental mandibulectomy, reconstruction with a reconstructive plate and a free anterolateral thigh flap to line the the floor of mouth. Functional and aesthetic outcome was acceptable, and the patient is planned for secondary free fibular flap bony reconstruction...
August 1, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28749839/angle-to-angle-mandibular-defect-reconstruction-with-fibula-flap-by-using-a-mandibular-fixation-device-and-surgical-navigation
#20
Shi-Yue Shen, Yao Yu, Wen-Bo Zhang, Xiao-Jing Liu, Xin Peng
PURPOSE: Although free fibula flaps are widely used for mandibular reconstruction, 3-dimensional (3D) position is difficult to control in angle-to-angle mandibular defects. The present study describes a revised approach for angle-to-angle mandibular reconstruction with fibula flaps by using mandibular fixation device and surgical navigation. METHODS: Preoperative maxillofacial and fibular computed tomography (CT) scans were acquired, and CT data were imported into ProPlan CMF software...
September 2017: Journal of Craniofacial Surgery
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