Clinical StudiesSurgical Treatment of Mandible Fracture Using Unsintered Hydroxyapatite/Poly L-Lactide Composite Fixation SystemLee, Sun Jae MD; Park, Eun Soo MD, PhD; Nam, Seung Min MD, PhD; Choi, Chang Yong MD, PhD; Shin, Ho Sung MD, PhD; Kim, Yong Bae MD, PhDAuthor Information Department of Plastic and Reconstructive Surgery, College of Medicine, Soonchunhyang University, Bucheon, Korea. Address correspondence and reprint requests to Eun Soo Park, MD, PhD, Department of Plastic and Reconstructive Surgery, Soonchunhyang University, College of Medicine, Bucheon Hospital, Bucheon, Korea 170, Jomaru-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, Korea; E-mail: firstname.lastname@example.org Received 8 February, 2019 Accepted 17 August, 2019 This work was supported by the Soonchunhyang University Research Fund. The authors report no conflicts of interest. Supplemental digital contents are available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.jcraniofacialsurgery.com). Journal of Craniofacial Surgery: November-December 2019 - Volume 30 - Issue 8 - p 2573-2575 doi: 10.1097/SCS.0000000000006030 Buy SDC Metrics Abstract Recently, absorbable plates have been used for various types of facial fractures. However, in the case of mandibular fractures, a large amount of force is applied after fixation. Thus, a firm fixation is necessary. In particular, unfavorable fractures are more frequent in mandibular fractures. Therefore, plates should be strong enough to withstand forces at the time of surgery. The purpose of this study was to determine clinical efficacy and usefulness of unsintered hydroxyapatite (u-HA)/poly (L-lactide) (PLLA) composite system by clinical application and follow-up of fixation in patients with mandible fracture. A total of 13 patients with mandible fractures were assessed for compliance with the selection criteria. Fracture site was confirmed with radiographic findings including X-ray and facial computed tomography images. Subjects who fulfilled all criteria underwent operation using HA/PLLA composite fixation system (OSTEOTRANS; Takiron Co Ltd, Osaka, Japan). After reduction of fracture site through oral or skin incision, we placed OSTEOTRANS plates on fracture line and performed rigid fixation with OSTEOTRANS-MX screws. Follow-up was performed at 1 week, 1, 3, and 6 months after surgery. Occlusion and mouth opening were checked by physical examination and radiographic finding. We also confirmed bone approximation status, bony gap change, and bone union status. All patients finished every follow-up. They were satisfied with outcomes without complications such as malocclusion, foreign body sensation, or tenderness. This study confirms that OSTEOTRANS can be used appropriately for mandibular fractures. © 2019 by Mutaz B. Habal, MD.