Lei Qi1,2,3, Ningning Cao1,2,3, Weiwen Ge1,2,3, Tengfei Jiang1,2,3, Linfeng Fan4,5,6, Lei Zhang7,8,9,10. 1. Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. 2. National Clinical Research Center for Oral Diseases, Shanghai, 200011, China. 3. Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. 4. National Clinical Research Center for Oral Diseases, Shanghai, 200011, China. 847472535@qq.com. 5. Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. 847472535@qq.com. 6. Department of Radiology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. 847472535@qq.com. 7. Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. oral66@126.com. 8. National Clinical Research Center for Oral Diseases, Shanghai, 200011, China. oral66@126.com. 9. Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China. oral66@126.com. 10. Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, No. 639 Zhizaoju Road, Shanghai, 200011, China. oral66@126.com.
Abstract
BACKGROUND: Mandibular condylar osteochondroma (OC) could lead to facial morphologic and functional disturbances, such as facial asymmetry, malocclusion, and temporomandibular joint dysfunction. However, after condylar OC resection, the inaccurate reposition of the neocondyle still needs to be solved. The purpose of this study was to explore the feasibility of the condylar osteotomy and repositioning guide to reposition the neocondyle in the treatment of patients with severe deformity secondary to condylar OC. RESULTS: Three patients with severe deformity secondary to OC of the mandibular condyle were enrolled in this study. With the aid of condylar osteotomy and repositioning guide, condylar OC resection and repositioning were carried out, and the accuracy and stability of these guides were evaluated. All patients healed uneventfully, and no facial nerve injury and condylar ankylosis occurred. Compared with the computerized tomography scans in centric relation before surgery and 3 days after surgery, the results showed that the facial symmetry was greatly improved in all the patients. Also, after the superimposition of the condylar segments before surgery and 3 days after surgery, the postoperative reconstructed condyles had a high degree of similarity to the reconstruction of the virtual surgical planning. Observed from the sagittal and coronal directions, the measurements of condylar positions were very close to those of virtual surgical planning. Moreover, it also showed stable results after a 1-year follow-up. CONCLUSIONS: For patients with severe deformity secondary to condylar OC, condylar osteotomy, and repositioning guide was expected to provide a new option for the improvement of facial symmetry and occlusal relationship.
BACKGROUND: Mandibular condylar osteochondroma (OC) could lead to facial morphologic and functional disturbances, such as facial asymmetry, malocclusion, and temporomandibular joint dysfunction. However, after condylar OC resection, the inaccurate reposition of the neocondyle still needs to be solved. The purpose of this study was to explore the feasibility of the condylar osteotomy and repositioning guide to reposition the neocondyle in the treatment of patients with severe deformity secondary to condylar OC. RESULTS: Three patients with severe deformity secondary to OC of the mandibular condyle were enrolled in this study. With the aid of condylar osteotomy and repositioning guide, condylar OC resection and repositioning were carried out, and the accuracy and stability of these guides were evaluated. All patients healed uneventfully, and no facial nerve injury and condylar ankylosis occurred. Compared with the computerized tomography scans in centric relation before surgery and 3 days after surgery, the results showed that the facial symmetry was greatly improved in all the patients. Also, after the superimposition of the condylar segments before surgery and 3 days after surgery, the postoperative reconstructed condyles had a high degree of similarity to the reconstruction of the virtual surgical planning. Observed from the sagittal and coronal directions, the measurements of condylar positions were very close to those of virtual surgical planning. Moreover, it also showed stable results after a 1-year follow-up. CONCLUSIONS: For patients with severe deformity secondary to condylar OC, condylar osteotomy, and repositioning guide was expected to provide a new option for the improvement of facial symmetry and occlusal relationship.
Authors: Manuel Fernandez Dominguez; Jose Luis Del Castillo; Mario Muñoz Guerra; Ruth Sanchez Sanchez; Maria Mancha De La Plata Journal: Craniomaxillofac Trauma Reconstr Date: 2014-10-27
Authors: Daniel Holzinger; Katrin Willinger; Gabriele Millesi; Kurt Schicho; Elisabeth Breuss; Florian Wagner; Rudolf Seemann Journal: Sci Rep Date: 2019-02-18 Impact factor: 4.379