Piezosurgery for Sagittal Split Osteotomy: Procedure Duration and Postoperative Sensory Perturbation

TY - JOUR

T1 - Piezosurgery for Sagittal Split Osteotomy: Procedure Duration and Postoperative Sensory Perturbation

AU - Köhnke, Robert

AU - Kolk, Andreas

AU - Kluwe, Lan

AU - Ploder, Oliver

N1 - Copyright © 2017 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.

PY - 2017/9

Y1 - 2017/9

N2 - PURPOSE: To evaluate piezosurgery for bilateral sagittal split osteotomy (BSSO) for its duration and inferior alveolar nerve (IAN) perturbation.PATIENTS AND METHODS: In this prospective randomized study, the authors evaluated 100 BSSO procedures in 50 patients. Piezoelectric (group I) and conventional (group II) osteotomies were carried out on each side of the mandible of a patient by 2 specialists. The surgeons had at least 1 year of experience using piezosurgery. The period from incision to complete splitting of the mandibular bone was recorded (ie, procedure duration). The intraoperative status (visibility and relocation) of the IAN also was recorded. The neurosensory function of the IAN was measured by the 2-point discrimination threshold and static light touch methods before surgery and postoperatively (1, 3, and 6 weeks and 6 and 12 months). Parameters were compared between the test groups by the paired t, nonparametric Wilcoxon, or χ2test.RESULTS: Intergroup comparison showed the mean duration of osteotomy was significantly shorter for group I (17 ± 6 vs 25 ± 9 minutes; P < .001). The rate of intraoperative exposures of the IAN was slightly lower for group I (68%) compared with group II (81%). However, the difference was not relevant. Neurosensory disturbance and recovery of the IAN did not differ between groups.CONCLUSION: Piezoelectric osteotomy requires considerably less time than conventional mechanical approaches, but shows no advantage in preventing neurosensory perturbation.

AB - PURPOSE: To evaluate piezosurgery for bilateral sagittal split osteotomy (BSSO) for its duration and inferior alveolar nerve (IAN) perturbation.PATIENTS AND METHODS: In this prospective randomized study, the authors evaluated 100 BSSO procedures in 50 patients. Piezoelectric (group I) and conventional (group II) osteotomies were carried out on each side of the mandible of a patient by 2 specialists. The surgeons had at least 1 year of experience using piezosurgery. The period from incision to complete splitting of the mandibular bone was recorded (ie, procedure duration). The intraoperative status (visibility and relocation) of the IAN also was recorded. The neurosensory function of the IAN was measured by the 2-point discrimination threshold and static light touch methods before surgery and postoperatively (1, 3, and 6 weeks and 6 and 12 months). Parameters were compared between the test groups by the paired t, nonparametric Wilcoxon, or χ2test.RESULTS: Intergroup comparison showed the mean duration of osteotomy was significantly shorter for group I (17 ± 6 vs 25 ± 9 minutes; P < .001). The rate of intraoperative exposures of the IAN was slightly lower for group I (68%) compared with group II (81%). However, the difference was not relevant. Neurosensory disturbance and recovery of the IAN did not differ between groups.CONCLUSION: Piezoelectric osteotomy requires considerably less time than conventional mechanical approaches, but shows no advantage in preventing neurosensory perturbation.

KW - Adolescent

KW - Adult

KW - Female

KW - Humans

KW - Male

KW - Mandible

KW - Mandibular Nerve

KW - Middle Aged

KW - Operative Time

KW - Osteotomy, Sagittal Split Ramus

KW - Piezosurgery

KW - Prospective Studies

KW - Treatment Outcome

KW - Trigeminal Nerve Injuries

KW - Journal Article

KW - Randomized Controlled Trial

U2 - 10.1016/j.joms.2017.05.003

DO - 10.1016/j.joms.2017.05.003

M3 - SCORING: Journal article

C2 - 28595839

VL - 75

SP - 1941

EP - 1947

JO - J ORAL MAXIL SURG

JF - J ORAL MAXIL SURG

SN - 0278-2391

IS - 9

ER -