Michael
Y. CHEN
The outcomes of utilizing a novel and powerful ultrasonic apparatus
(BoneScalpel TM by Misonix Inc., Farmingdale, NY, USA) with tissue
selective cutting characteristics in a series of 53 patients underwent
orthognathic surgery in the OMS department of Taichung China Medical University
Hospital from Jul. 2014 through Jul. 2015 will be presented. All cortical osteotomies
were performed purely ultrasonically and without auxiliary use of reciprocating
saw or rotary burs. The kurf of osteotomy is about 1.6 mm which enables
convenient access (insertion)of Obwegesor’s osteotome and/or Smith Ramus
Separator to complete the splitting procedures. It seemed to be a safer and
much more comfortable instrument to free the inferior alveolar neurovascular
bundle when it trapped within the proximal segment. Statistics from literatures
and our own experience have shown no significant difference in the amount of
intra-operative blood loss and post-operative neurosensory disturbance regarding
the instruments used to perform osteotomy. However, BoneScalpelTM in
our hands did provide improved control over orthognathic osteotomies and
resulted in reductions in the occurrence of bad splits without significant
extra-working time.
