Abstract：Objective To investigate whether the surgery resorting to computerassisted navigation system (CANS) can enhance effects in managing unilateral old zygomatic complex (ZMC) fracture in comparison with conventional surgery. Methods Twentyfour patients with unilateral old ZMC fracture for which surgical correction was wanted were divided into study group (n=12, treated with navigational surgery) and control group (n=12, treated with traditional surgery) in the 1∶1 matched casecontrol study. Therapeutic effects of CANS were evaluated by postoperative CT measurement, subjective satisfaction questionnaire and clinical examination. Results According to postoperative threedimensional CT measurement, the mean projection and width differentials of bilateral zygomatic bones were 1.58 mm and 1.47 mm in study group, 3.58 mm and 3.63 mm in control group, with significant differences between groups. No complications occurred within three months of follow-up. Moreover, the patients in study group were all satisfied with the treatment, but two patients in control group desired further surgery to ameliorate zygomatic shape. Conclusion Surgery with application of CANS improves efficacy of treatment for unilateral old ZMC fracture.
GONG Xi,ZHANG Yi,HE Yang et al. Use of computerassisted navigation system in reconstruction of unilateral old zygomatic complex fracture[J]. CHINESE JOURNAL OF TRAUMA, 2013, 29(2): 122-126.
［1］Zingg M, Laedrach K, Chen J, et al. Classification and treatment of zygomatic fractures: a review of 1, 025 cases. J Oral Maxillofac Surg, 1992, 50(8):778-790.
［2］Pham AM, Rafii AA, Metzger MC, et al. Computer modeling and intraoperative navigation in maxillofacial surgery. Otolaryngol Head Neck Surg, 2007, 137(4): 624-631.
［3］Burcal RG, Laskin DM, Sperry TP. Recognition of profile change after simulated orthognathic surgery. J Oral Maxillofac Surg, 1987, 45(8):666-670.
［4］Vriens JP, van der Glas HW, Moos KF, et al. Infraorbital nerve function following treatment of orbitozygomatic complex fractures. A multitest approach. Int J Oral Maxillofac Surg, 1998, 27(1):27-32.
［5］Cohen SR, Kawamoto HJ Jr. Analysis and results of treatment of established posttraumatic facial deformities. Plast Reconstr Surg, 1992, 90(4):574-584.
［6］Ellis E 3rd, Kittidumkerng W. Analysis of treatment for isolated zygomaticomaxillary complex fractures. J Oral Maxillofac Surg, 1996, 54(4): 386-400; discussion 400-401.
［8］Li WZ, Zhang MC, Li SP, et al. Application of computer-aided three-dimensional skull model with rapid prototyping technique in repair of zygomatico-orbito-maxillary complex fracture. Int J Med Robot, 2009, 5(2):158-163.
［9］Watzinger F, Wanschitz F, Wagner A, et al. Computer-aided navigation in secondary reconstruction of post-traumatic deformities of the zygoma. J Craniomaxillofac Surg, 1997, 25(4):198-202.
［10］Chen X, Lin Y, Wang C, et al. A surgical navigation system for oral and maxillofacial surgery and its application in the treatment of old zygomatic fractures. Int J Med Robot, 2011, 7(1):42-50.
［11］Scolozzi P, Terzic A. “Mirroring” computational planning, navigation guidance system, and intraoperative mobile C-arm cone-beam computed tomography with flat-panel detector: a new rationale in primary and secondary treatment of midfacial fractures? J Oral Maxillofac Surg, 2011, 69(6):1697-1707.
［12］Yu H, Shen G, Wang X, et al. Navigation-guided reduction and orbital floor reconstruction in the treatment of zygomatic-orbital-maxillary complex fractures. J Oral Maxillofac Surg, 2010, 68(1):28-34.
［13］Xia JJ, Gateno J, Teichgraeber JF. A new paradigm for complex midface reconstruction: a reversed approach. J Oral Maxillofac Surg, 2009, 67(3): 693-703.
［14］Klug C, Schicho K, Ploder O, et al. Point-to-point computer-assisted navigation for precise transfer of planned zygoma osteotomies from the stereolithographic model into reality. J Oral Maxillofac Surg, 2006, 64(3):550-559.
［15］Westendorff C, Gülicher D, Dammann F, et al. Computer-assisted surgical treatment of orbitozygomatic fractures. J Craniofac Surg, 2006, 17(5):837-842.
［16］Baumann A, Schicho K, Klug C, et al. Computer-assisted navigational surgery in oral and maxillofacial surgery. Atlas Oral Maxillofac Surg Clin North Am, 2005, 13(1):41-49.>
