Basic and patient-oriented researchRetrospective Review of Microsurgical Repair of 222 Lingual Nerve Injuries
Section snippets
Materials and Methods
A retrospective chart review was completed of all patients who had undergone microsurgical repair of the LN by one of us (R.A.M.) from March 1986 through December 2005. A physical examination, including standardized neurosensory testing (NST), as described by Zuniga et al,22 was completed for each patient preoperatively. All patients were followed up periodically after surgery for at least 1 year, with NST repeated at each visit. Sensory recovery was determined by the patient's final NST
Results
A total of 222 patients (51 males and 171 females; average age 31.1 years, range 15 to 61) underwent LN repair and returned for at least 1 year of follow-up. The most common cause of LN injury was mandibular third molar removal (n = 191, 86%), followed by sagittal split mandibular ramus osteotomy (n = 14, 6.3%; Table 2). Most patients complained preoperatively of numbness (n = 122, 55%) or numbness with pain (n = 94, 42.3%; Table 3). The average interval from injury to surgery was 8.5 months
Discussion
The purpose of the present investigation was to report the long-term outcomes of a large standardized patient group with LN injuries who had undergone surgical repair and to review the demographics of this set of patients. The results of the study showed that most subjects (90.5%) achieved FSR as defined by the Medical Research Council Scale, ranging from S3 (“useful sensory recovery”) to S4 (“complete return of sensation”). Our results are comparable to those from Susarla et al,18 who
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