Clinical ArticlesA prospective electromyographic and computer-aided thermal sensitivity assessment of nerve lesions after sagittal split osteotomy and Le Fort I osteotomy*,**,*,**,*
Section snippets
Patients
Orthognathic procedures were performed in 123 patients in the period between January 1996 and December 1997. Nineteen patients (11 males, 8 females) were randomized to the study from an overall population of 123 patients. All 19 patients were informed in detail about the various test modalities for checking sensibility status, both preoperatively and postoperatively, and all gave their consent to participate in the study. The average age of the patients was 24.9 years (range, 15 to 39 years).
Results
Preoperatively, all 19 patients had a uniform regular sensory status in the peripheral innervation areas of the ION and IAN on both sides. On the 7th postoperative day after the Le Fort I osteotomy, the sharp-blunt test indicated a sensory disturbance in 29 of 36 IONs investigated (81%) (Fig 3).
Discussion
In the prospective investigation of 36 IONs after Le Fort I osteotomy and 26 IANs after BSSO, it has been shown that with sharp-blunt testing and the 2-point discrimination test the incidence of transient sensory disturbances of the ION, namely 81% (29 of 36), is identical with the rate of transient disorders of the IAN of 83% (20 of 24). The rate of permanent sensory disturbance was shown by conventional clinical testing to be 6% for the ION and 15% for the IAN. Although an appreciable sensory
References (42)
- et al.
The mental nerve blink reflex in the diagnosis of lesions of the inferior alveolar nerve following orthognathic surgery of the mandible
Br J Oral Maxillofac Surg
(1996) - et al.
Labial sensory function following sagittal split osteotomy
Br J Oral Maxillofac Surg
(1996) - et al.
Sagittal split advancement osteotomies stabilized with miniplates: A 25 year follow-up
Int J Oral Maxillofac Surg
(1994) Sagittal ramus osteotomy with tandem screw fixation: Technique and results
J Maxillofac Surg
(1986)- et al.
Mechanism of transient mental nerve paraesthesia in sagittal split mandibular ramus osteotomy
Br J Oral Maxillofac Surg
(1994) - et al.
Impairment of the inferior alveolar nerve after sagittal splitting osteotomy
J Craniomaxillofac Surg
(1989) - et al.
A comparison of questionnaire versus monofilament assessment of neurosensory deficits
J Oral Maxillofac Surg
(1996) - et al.
Neurosensory recovery following the mandibular bilateral sagittal split osteotomy
J Oral Maxillofac Surg
(1995) - et al.
Neurosensory disturbance with rigid fixation of the bilateral sagittal split osteotomy
J Oral Maxillofac Surg
(1987) - et al.
Recovery of neurosensory function following orthognathic surgery
J Oral Maxillofac Surg
(1990)
A prospective study on changes in the sensibility of the oral mucosa and the mucosa of the upper lip after Le Fort I osteotomy
J Craniomaxillofac Surg
Assessment of inferior alveolar and lingual nerve disturbances after dentoalveolar surgery, and of recovery of sensitivity
Int J Oral Maxillofac Surg
Prospective study on post-traumatic and postoperative sensory disturbances of the inferior alveolar nerve and infraorbital nerve in mandibular and midfacial fractures
J Craniomaxillofac Surg
Comprehensive clinical evaluation of perioral sensory function
Oral Maxillofac Surg Clin North Am
Functional disturbances of the inferior alveolar nerve after sagittal osteotomy of the mandibular ramus: Operating technique for prevention
J Maxillofac Surg
Intra-operative complications in sagittal and vertical ramus osteotomies
Int J Oral Maxillofac Surg
Experience with sagittal osteotomy of the mandibular ramus: A 13-year review
J Maxillofac Surg
Lesions of the inferior alveolar nerve in sagittal osteotomy of the ramus: Experimental study
J Maxillofac Surg
Assessment of recovery from injury to inferior alveolar and mental nerves
Oral Surg Oral Med Oral Pathol
Position of the mandibular canal
Int J Oral Maxillofac Surg
Intraoperative recording of trigeminal evoked potentials during orthognathic surgery
Int J Adult Orthod Orthognath Surg
Cited by (0)
- *
*Senior Hospital Consultant, Department of Oral and Maxillofacial Surgery.
- **
†Research Fellow, Department of Oral and Maxillofacial Surgery.
- *
‡Professor, Department of Prosthodontics.
- **
§Professor, Department of Oral and Maxillofacial Surgery.
- *
Address correspondence and reprint requests to Dr Schultze-Mosgau: Glueckstraβe 11, 91054 Erlangen, Germany; e-mail: [email protected]