Risk factors affecting somatosensory function after sagittal split osteotomy

TY - JOUR

T1 - Risk factors affecting somatosensory function after sagittal split osteotomy

AU - Thygesen, Torben Henrik

AU - Jensen, Allan Bardow

AU - Helleberg, M

AU - Norholt, SE

AU - Jensen, John

AU - Svensson, Peter

PY - 2008

Y1 - 2008

N2 - PurposeThe aim of this study was to evaluate potential individual and intraoperative risk factors associated with bilateral sagittal split osteotomy (BSSO) and to correlate the findings with postoperative changes in somatosensory function.Patients and MethodsA total of 18 men and 29 women (mean age, 31 ± 10 years) scheduled for BSSO participated in 1 session before BSSO and 5 sessions after BSSO (at 2 and 14 days and 3, 6, and 12 months). At each session, subjective oral sensation was scored and quantitative sensory tests were performed.ResultsThe results showed that complete exposure and free dissection of the inferior alveolar nerve during BSSO increased self-reported changes in lower lip sensation and lower lip tactile threshold after BSSO (P < .01). Long surgical movements reduced self-perceived jaw-opening function and impaired 2-point discrimination (P < .05). Significant correlations were noted between preoperative values for somatosensory function and changes in these variables after BSSO. Patients with low sensory thresholds before BSSO experienced more impairment than those patients with higher preoperative sensory thresholds.ConclusionThese findings imply that somatosensory function after BSSO is dependent on both intraoperative risk factors and preoperative sensation levels.

AB - PurposeThe aim of this study was to evaluate potential individual and intraoperative risk factors associated with bilateral sagittal split osteotomy (BSSO) and to correlate the findings with postoperative changes in somatosensory function.Patients and MethodsA total of 18 men and 29 women (mean age, 31 ± 10 years) scheduled for BSSO participated in 1 session before BSSO and 5 sessions after BSSO (at 2 and 14 days and 3, 6, and 12 months). At each session, subjective oral sensation was scored and quantitative sensory tests were performed.ResultsThe results showed that complete exposure and free dissection of the inferior alveolar nerve during BSSO increased self-reported changes in lower lip sensation and lower lip tactile threshold after BSSO (P < .01). Long surgical movements reduced self-perceived jaw-opening function and impaired 2-point discrimination (P < .05). Significant correlations were noted between preoperative values for somatosensory function and changes in these variables after BSSO. Patients with low sensory thresholds before BSSO experienced more impairment than those patients with higher preoperative sensory thresholds.ConclusionThese findings imply that somatosensory function after BSSO is dependent on both intraoperative risk factors and preoperative sensation levels.

U2 - 10.1016/j.joms.2007.06.666

DO - 10.1016/j.joms.2007.06.666

M3 - Journal article

C2 - 18280379

SN - 0278-2391

VL - 66

SP - 469

EP - 474

JO - Journal of Oral and Maxillofacial Surgery

JF - Journal of Oral and Maxillofacial Surgery

IS - 3

ER -