Prominent zygomatic complex reduction by C-type osteotomy / 中华医学美学美容杂志

ABSTRACT

Objective To explore the operation of C-type osteotomy for reduction of prominent zygomatic complex. Methods Based on the severity and characteristics of prominent zygomaitc complex, Ctype osteotomy was designed for the malar complex reduction by using oral and minor pre-auricular approaches under general anaesthesia. Two paralleled osteotomic lines of C-type were marked from zygomatic alveola to the conjunction of lateral orbital margin and zygomatic arch through the inferio-lateral edge of orbit. The extension of zygomatic arch reduction was determined the width of two osteotomic lines. The bone which marked lines was removed by reciprocating saw and osteotome. The zygomatic arch root was osteotomiced by pre-auricular approaches. Then, the zygomatic complex could move freely towards superior-medial position. Finally, the zygoma was fixed with titanium mini-plates. Results 12 patients with prominent zygomatic complex had been successfully operated by C-type osteotomy from July 2006 to April 2009. Of them, six cases were symmetrical and six cases were unsymmetrical. Postoperative follow-up for 4-24 months, infection was not occurred, and the scar of pre-auricular incision was not obvious. All the patients obtained positive results. Conclusion C-type osteotomy for correction of prominent zygomtic complex through intra-oral and minor pre-auricular approach is an effective surgical method and gives superior results. It preserves the intactness of maxillary sinus, prevents facial slack, and is especially effective for patients with prominent zygomatic arch.