Opening rotation of the maxillo-mandibular complex

- This is when a Le Forte I and BSSO osteotomies are performed together to increase lower face height (LFH)
- The Le Forte I can be downgrafted using a iliac crest (hip) bone graft or
- The Le Forte I advancement is at a downward sliding angle to increase the upper jaw height
- The simultaneous surgical opening rotation of the lower jaw (BSSO) completes the increase in LFH
- This procedure is particularly useful when one doesn't wish to increase the chin prominence

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