Is injury to the inferior alveolar nerve still common during orthognathic surgery? Manual twist technique for sagittal split ramus osteotomy

The osteotomy in a bilateral sagittal split ramus osteotomy (BSSRO) is made in close proximity to the inferior alveolar nerve (IAN), so direct damage to the nerve and irreversible neurosensory deficit may result. The aim of this study was to compare the incidence of injury to the nerve when a conventional osteotomy using an osteotome was made, with that after manual twist splitting. We retrospectively reviewed the casenotes of 769 consecutive patients who had bilateral SSRO either alone or with a simultaneous maxillary procedure by a single surgeon from May 2009 − October 2016. (Source: The British Journal of Oral and Maxillofacial Surgery)

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