engleski

Altered Light Touch Sensation After Bilateral Sagittal-split Osteotomy

This report is a prospective evaluation of the incidence of change in light-touch sensation in the innervated area of the lower alveolar nerve after BSSO with attention on time that it takes to rebuild the function of the inferior alveolar nerve. The sample consisted of 30 women and 20 men, with a mean age 22.14 (3.3) years. The neurosensory test was conducted with a 20-mm long monofilament of suture material Prolene (3-0) connected to a plastic holder. These tests were performed one day preoperatively and every two weeks during first two months after surgery. After that, patients were tested once every month until the end of the first year. All patients had disturbance of light touch sensation after BSSO, but none of these changes was permanent. The average duration of hypoesthesia was 6.6 (1.2) with a range from 4 to 9 months. The average duration of hypoesthesia for women was 6.27(1.0) months, and men had hypoesthesia for 7.1 (1.2) months on average. This difference was statistically significant. The two oldest female patients, who were 33 and 37 years old at the time of the surgery, experienced altered sensitivity for only 4 months. After BSSO, all patients experienced disturbed light-touch sensation in the innervated area of the lower alveolar nerve. Fastest recovery in the oldest patients and statistically significant difference between the sexes should be interpreted with caution.

sagittal-split osteotomy ; sensation ; lower alveolar nerve

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