Widar Fredrik, Afshari Mariam, Rasmusson Lars, Dahlin Christer, Kashani Hossein
Department of Oral and Maxillofacial Surgery, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Department of Oral and Maxillofacial Surgery, Institute of Odontology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Oral Surg Oral Med Oral Pathol Oral Radiol. 2017 Sep;124(3):231-239. doi: 10.1016/j.oooo.2017.04.016. Epub 2017 May 4.
The aim of this study was to investigate the incidence and reasons for titanium fixation plate removal following orthognathic surgery, identify risk factors predisposing removal, and explore if discomfort was reduced postoperatively.
Medical records of 404 consecutive cases were retrospectively reviewed. All patients received a questionnaire for follow-up, and 323 patients answered the questionnaire, thus forming the sample group.
Of all the responding patients, 15% had plates removed, and 92% of these patients experienced relief from discomfort after removal of the plates. Infection was the most common reason for plate removal (10%). Smoking (hazard ratio 2.74) and surgery performed in the mandible (hazard ratio 2.40) increased the need for plate removal. For each plate added in the mandible, the risk for removal increased by 34%.
Smoking, osteotomies, and additional numbers of plates in the mandible resulted in a higher incidence of plate removal. Most of the patients experienced relief from discomfort after plate removal.
本研究旨在调查正颌手术后钛固定板取出的发生率及原因，确定导致取出的危险因素，并探讨术后不适是否减轻。
回顾性分析404例连续病例的病历。所有患者均接受随访问卷调查，323例患者回答了问卷，从而形成样本组。
在所有回复的患者中，15%的患者取出了固定板，其中92%的患者在取出固定板后不适得到缓解。感染是取出固定板最常见的原因（10%）。吸烟（风险比2.74）和在下颌骨进行手术（风险比2.40）增加了取出固定板的需求。下颌骨每增加一块固定板，取出的风险就增加34%。
吸烟、截骨术以及下颌骨固定板数量增加导致固定板取出的发生率更高。大多数患者在取出固定板后不适得到缓解。
