[Lamella osteotomy with separated segments movement in secondary orbito-zygoma deformities after traumatic malar fracture].
OBJECTIVE
For reconstruction of secondary orbit-zygomatic deformities after severe malar fracture.


METHODS
We made shaped segments in orbito-zygoma region using lamella osteotomy, rearranged inferior and lateral orbital segment with inner and upper movement, and fixed the zygomatic fragment in new place with lateral and upward movement. Pre and post operative measurements including Hetel measurement and the angle between orbital horizontal level with bilateral tragus linkage(A-OT) have been done.


RESULTS
In our 22 cases list, lateral and inferior orbital segment was moved to upper and inner direction with 8.1 mm in average, while zygomatic fragent was lift 9.2 mm and pushed 1.5 mm in average. In average 6.5 months follow-up, good facial contour were maintained in most of our list and no obvious relapse was occurred.


CONCLUSIONS
Lamella osteotomy with separated segments movement was benefit to most of secondary deformities in orbito-zygoma displace.
Wang
Zhao-hui
ZH
Department of Head and Neck, Sichuan Cancer Hospital, Sichuan Chengdu, China.
Mu
Xiong-zheng
XZ
D000293:Adolescent; D000328:Adult; D019465:Craniofacial Abnormalities / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000002:abnormalities / Q000601:surgery*; D009917:Orbital Fractures / Q000150:complications; D010027:Osteotomy / Q000379:methods*; D055815:Young Adult; D015050:Zygoma / Q000002:abnormalities / Q000601:surgery*