CAJ | 학술논문

目的探讨口内入路下颌角铣骨成形术矫正下颌角肥大的疗效及三维CT重建技术在术前设计及术后效果评价中的应用.方法局部麻醉下应用口内切口下颌角铣骨成形术对43例下颌角肥大者进行矫正.分别于术前、术后行头颅三维CT重建,测量相关数据,将铣骨术前、术后的下颌角角度和咬肌厚度的三维数据进行比较,观察面部轮廓改善情况.结果 43例中33例获得4～24个月随访,大部分受术者对术后效果满意,面下部正面观和侧面观均有明显改善,下颌角部曲线圆滑、形态自然,无1例发生神经损伤、骨折等严重并发症.结论下颌角铣骨成形术是一种安全有效、操作简便、恢复较快、并发症少的好方法,三维CT重建对术前设计及术后效果评价均有积极作用.
목적 탐토구내입로하합각선골성형술교정하합각비대적료효급삼유CT중건기술재술전설계급술후효과평개중적응용.방법 국부마취하응용구내절구하합각선골성형술대43례하합각비대자진행교정.분별우술전、술후행두로삼유CT중건,측량상관수거,장선골술전、술후적하합각각도화교기후도적삼유수거진행비교,관찰면부륜곽개선정황.결과 43례중33례획득4～24개월수방,대부분수술자대술후효과만의,면하부정면관화측면관균유명현개선,하합각부곡선원활、형태자연,무1례발생신경손상、골절등엄중병발증.결론 하합각선골성형술시일충안전유효、조작간편、회복교쾌、병발증소적호방법,삼유CT중건대술전설계급술후효과평개균유적겁작용.
Objective To observe the surgical results of milling technique in treating mandibular angle hypertrophy through an intraoral approach and the effect of three-dimensional computer tomography (3D-CT) reconstruction.Methods Milling-technique was used to treat mandibular angle hypertrophy of 43 patients through intraoral approach under local anaesthesia.3D-CT was applied preoperatively and postoperatively,the data of mandibular angle and masseter muscle thickness were compared preoperatively and postoperatively.The facial contour improvement was also observed.Results Of 43 cases,33 cases were followed-up for 4 to 24 months after operation.The majority of patients were satisfied with the aesthetic results,changes of anterior and lateral view of basifacial part were obvious,the curve of the mandibular angle was smooth and the shape was natural; no major complications such as facial nerve injury or malfracture were seen.Conclusions Milling-technique is a safe,effective and simple method for mandibular angle reduction,and 3D-CT reconstruction has a positive effect preoperatively and postoperatively.