Although external distraction for advancement of the midface may have greater flexibility than internal distraction for the modification of movement vectors during the distraction period,
1it can be at the expense of stability of the fragment during the latent phase before distraction begins. In our experience this has never been a problem in straightforward cases, but in more complex cases that have less hard and soft tissue support at the margins of the osteotomy cuts, we have found that the fragments tend to drop under the influence of gravity until the cartilaginous callus is formed. Examples where we have done this are after injuries caused by blasts, or in cases of hypoplastic tissue secondary to congenital craniofacial diagnoses.
- Meling T.R.
- Høgevold H.E.
- Due-Tønnessen B.J.
- Skjelbred P.
Midface distraction osteogenesis: internal vs. external devices.
International Journal of Oral and Maxillofacial Surgery. 2011; 40: 139-145
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- Midface distraction osteogenesis: internal vs. external devices.International Journal of Oral and Maxillofacial Surgery. 2011; 40: 139-145
Published online: July 23, 2012
© 2012 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.