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Three‐dimensional photogrammetry for surgical planning of tissue expansion in hemifacial microsomia
Author(s) -
Jayaratne Yasas S. N.,
Lo John,
Zwahlen Roger A.,
Cheung Lim K.
Publication year - 2010
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.21258
Subject(s) - hemifacial microsomia , photogrammetry , facial symmetry , medicine , surgical planning , soft tissue , orthodontics , deformity , superimposition , tissue expansion , surgery , computer science , craniofacial , artificial intelligence , psychiatry
Background. We aim to illustrate the applications of 3‐dimensional (3‐D) photogrammetry for surgical planning and longitudinal assessment of the volumetric changes in hemifacial microsomia. Methods. A 3‐D photogrammetric system was employed for planning soft tissue expansion and transplantation of a vascularized scapular flap for a patient with hemifacial microsomia. The facial deficiency was calculated by superimposing a mirror of the normal side on the preoperative image. Postsurgical volumetric changes were monitored by serial superimposition of 3‐D images. Results. A total of 31 cm 3 of tissue expansion was achieved within a period of 4 weeks. A scapular free flap measuring 8 cm × 5 cm was transplanted to augment the facial deficiency. Postsurgical shrinkage of the flap was observed mainly in the first 3 months and it was minimal thereafter. Conclusion. 3‐D photogrammetry can be used as a noninvasive objective tool for assessing facial deformity, planning, and postoperative follow‐up of surgical correction of facial asymmetry. © 2009 Wiley Periodicals, Inc. Head Neck, 2010