Rajkumar K, Mukhopadhyay P, Sinha Ramen, Bandyopadhyay T K
TC 4/2071, Kavu Road, Kuravankonam, Trivandrum, Kerala 695003 India.
Sree Sai Dental College, Vikarabad, Hyderabad, India.
J Maxillofac Oral Surg. 2016 Mar;15(1):45-51. doi: 10.1007/s12663-015-0781-6. Epub 2015 Apr 4.
The purpose of this study was to clinically and radiologically evaluate reduction and fixation of isolated zygomatic complex (ZMC) fractures treated by Y modification of the transconjunctival approach.
A prospective evaluation of ten patients was undertaken for a period of 6 months using this modified approach from Jan 2012 to Jun 2013. Patients were examined preoperatively and post operatively at the end of 6 months for symmetry discrepancies involving A-P globe projection, lateral canthal level, malar projection and diplopia in direct and extreme gazes. Cosmetic outcomes were assessed by clinical assessment and examination of photographs. Quality of reduction and stability of fixation was assessed by examination of postoperative images.
All patients underwent a three point fixation of ZMC with reconstruction of the orbital floor using titanium mesh. Patients were post surgically followed up at regular intervals of 1, 3 and 6 months. Immediate complications noted were chemosis, lid edema and lower lid retraction. Late complications included minor scleral show in two cases. All patients experienced significant improvement with excellent esthetic appearance and function.
Y modification of transconjunctival approach provides excellent surgical exposure for ZMC fractures potentially avoiding the use of a second incision in the area of ZF suture. Although this technique provides good exposure and excellent esthetics, it requires more operating time and detailed knowledge of the anatomy of the lateral canthal region.
本研究旨在对采用经结膜入路Y形改良术治疗的孤立性颧骨复合体(ZMC)骨折的复位和固定进行临床及影像学评估。
2012年1月至2013年6月期间,采用这种改良方法对10例患者进行了为期6个月的前瞻性评估。在术前及术后6个月末对患者进行检查,评估涉及前后眼球突出度、外眦水平、颧骨突出度以及直视和极度凝视时复视的对称性差异。通过临床评估和照片检查评估美容效果。通过术后影像检查评估复位质量和固定稳定性。
所有患者均采用三点固定ZMC,并使用钛网重建眶底。术后定期在1、3和6个月对患者进行随访。术中即刻出现的并发症为球结膜水肿、眼睑水肿和下睑退缩。晚期并发症包括2例轻微巩膜外露。所有患者的美观和功能均有显著改善,外观极佳。
经结膜入路Y形改良术为ZMC骨折提供了良好的手术显露,可能避免在颧额缝区域使用第二个切口。虽然该技术提供了良好的显露和极佳的美容效果,但需要更多的手术时间以及对外眦区域解剖结构的详细了解。