Purpose: The extent to which neurosensory disturbance (NSD) affects patients after bilateral sagittal split osteotomy (BSSO) was investigated 1 year postoperatively. An additional aim was to identify related factors.
Materials And Methods: In this prospective study, the fate of the mandibular nerve during BSSO was recorded. The predictor variable was the degree of nerve injury during BSSO, and the outcome variable was the effect of NSD 1 year postoperatively. Statistics were computed and a P value less than .05 was considered significant.
Results: Forty-one patients (27 women; average age, 37 yr) completed the study. Of these patients, 90.2% had NSD, but most (89.2%) were satisfied with the treatment and would choose it again. The NSD was greater when the nerve had been manipulated more during surgery. The 4 patients with visible nerve lacerations had severe NSD and were unsatisfied with the treatment at the endpoint.
Conclusions: Although NSD was frequent 1 year after BSSO, most patients were satisfied with the treatment. However, a risk for severe NSD or neuropathic pain does exist in a small group of patients. These patients should be identified at an early stage so that proper medical and supportive treatment can be initiated. If necessary, a multidisciplinary pain center should be consulted. The importance of accurate patient information preoperatively cannot be overstated.
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