Effects of age, amount of advancement, and genioplasty on neurosensory disturbance after a bilateral sagittal split osteotomy

Sickels, Joseph E. Van; Hatch, John P.; Dolce, Calogero; Bays, Robert A.; Rugh, John D.

doi:10.1053/joms.2002.34411

Cited by 95 publications

(37 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The induction of neural impairment is thought to be influenced by multiple causal factors, including fixation methods (Westermark et al, 1998;Pratt et al, 1996;Lemke et al, 2000), patient age (Yikontiola et al, 2000;Van Sickels et al, 2002) postoperative swelling (Jones & Wolford, 1990), and surgical procedures, particularly a bad split (Brusati et al, 1998;Augaust et al, 1998).…”

Section: Discussionmentioning

confidence: 99%

Effect of self-setting α-tricalcium phosphate between segments for bone healing and hypoaesthesia in lower lip after sagittal split ramus osteotomy

Ueki¹,

Okabe²,

Marukawa³

et al. 2012

Journal of Cranio-Maxillofacial Surgery

View full text Add to dashboard Cite

Purpose. The purpose of this study was to evaluate hypoesthesia of lower lip and bone formation using self-setting α-tricalcium phosphate (Biopex®) between the proximal and distal segments following sagittal split ramus osteotomy (SSRO) with bent absorbable plate fixation.Subjects and Methods. The subjects were 40 patients (80 sides) who underwent bilateral SSRO setback surgery. They were divided into a Biopex® group (40 sides) and a control group (40 sides). The Biopex® was inserted into the anterior part of the gap between the segments in the Biopex® group. Trigeminal nerve hypoesthesia at the region of the lower lip was assessed bilaterally by the trigeminal somatosensory-evoked potential (TSEP) method. Ramus square, ramus length, and ramus width, the square of the Biopex® at the horizontal plane under the mandibular foramen were assessed preoperatively, immediately after surgery, and 1 year postoperatively by computed tomography (CT).Results. The mean measurable period and standard deviation were 9.3±15.7 weeks in the control group, 5.3±8.3 weeks in the Biopex® group, and there was no significant difference.Ramus square after 1 year was significantly larger than that prior to surgery and new bone formation was found between the segments in both groups (P<0.05). In the Biopex® group, the square of the Biopex® after 1 year was significantly smaller than that immediately after surgery (P<0.05).Conclusion. This study suggested that inserting Biopex® in the gap between the proximal and distal segments was useful for new bone formation and it did not prevent the recovery of lower lip hypoesthesia after SSRO with bent absorbable plate fixation.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of self-setting α-tricalcium phosphate between segments for bone healing and hypoaesthesia in lower lip after sagittal split ramus osteotomy

Ueki¹,

Okabe²,

Marukawa³

et al. 2012

Journal of Cranio-Maxillofacial Surgery

View full text Add to dashboard Cite

show abstract

“…7 These differences are probably the result of the varying time that had elapsed since surgery when the research was performed and use of nonstandardized testing methods. There are doubts about whether changes in sensation should be tested with subjective or objective tests.…”

Section: Discussionmentioning

confidence: 99%

“…The two oldest patients had the shortest recovery time, which contradicts the results of other authors. 7,13 This result may be a consequence of altered bone structure in the elderly and easier osteotomy procedures, which can lead to less nerve trauma. Given that all patients displayed nerve recovery, we were unable to examine the situation with persistent hypoesthesia after 1 year.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Altered light-touch sensation after bilateral sagittal-split osteotomy

Jokić

Uglešić

et al. 2012

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To prospectively evaluate the incidence of change in light-touch sensation in the innervated area of the lower alveolar nerve after bilateral sagittal-split osteotomy (BSSO) with attention on the time it takes to rebuild the function of the inferior alveolar nerve. Materials and Methods: The sample consisted of 30 women and 20 men with a mean age of 22.14 6 3.30 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 1 day before surgery and every 2 weeks during first 2 months after surgery. After that, patients were tested once every month until the end of the first year. Results: All patients had a disturbance of light-touch sensation after BSSO, but none of these changes was permanent. The average duration of hypoesthesia was 6.6 6 1.2 with a range from 4 to 9 months. The average duration of hypoesthesia for women was 6.27 6 1.0 months, and men had hypoesthesia for 7.1 6 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. Conclusions: After BSSO, all patients experienced disturbed light-touch sensation in the innervated area of the lower alveolar nerve. A faster recovery in the oldest patients and a statistically significant difference between the sexes should be interpreted with caution. (Angle Orthod. 2012;82:1029-1032

show abstract

“…Although many investigators have reported NSD after SSRO, the precise factors remain to be elucidated [6,10].…”

Section: Introductionmentioning

confidence: 99%

Incidence of inferior alveolar nerve affection with and without nerve exposure during bilateral sagittal split osteotomy

Sadakah

Elshall

2018

OMX

View full text Add to dashboard Cite

Objective: The aim of this study was to determine the presence and severity of inferior alveolar nerve (IAN) affection during bilateral sagittal split osteotomy (BSSO) in two groups of patients with and without direct exposure and visualization of the nerve during surgical procedure. Patients and Methods: In this prospective randomized clinical study, 14 patients (28 sides) indicated for BSSO were included. The sides were randomly divided into two groups with equal number of sides (14 sides). Group I with wide soft tissue dissection of the medial side of the ramus and exposure of IAN above the ligula and group II with minimal soft tissue dissection of the medial side of the ramus without exposure of IAN. For evaluation of neurosensory function of IAN, two methods were used including subjective evaluation and two-point discrimination test. Results: According to the subjective evaluation, there was a statistically significant difference between both groups in favor of group II in all follow-up recalls except in the final one at 12 months postoperatively. Considering the results of two-point discrimination test, the improvement obviously continued during the successive follow-up periods in both groups, with a statistically significant difference in favor of group II until the ninth month, and then in the last follow-up at the 12 th month, the records were almost equal. Conclusion: To markedly reduce the postoperative neurosensory disturbances of IAV and to accelerate the full recovery of sensation of the lower lip and chin regions following BSSO, limited exposure and dissection of the medial soft tissues of the ramus should be practiced with avoidance of direct exposure and manipulation of IAN.

show abstract

Effects of age, amount of advancement, and genioplasty on neurosensory disturbance after a bilateral sagittal split osteotomy

Cited by 95 publications

References 22 publications

Effect of self-setting α-tricalcium phosphate between segments for bone healing and hypoaesthesia in lower lip after sagittal split ramus osteotomy

Effect of self-setting α-tricalcium phosphate between segments for bone healing and hypoaesthesia in lower lip after sagittal split ramus osteotomy

Altered light-touch sensation after bilateral sagittal-split osteotomy

Incidence of inferior alveolar nerve affection with and without nerve exposure during bilateral sagittal split osteotomy

Contact Info

Product

Resources

About