Subjective perception of paraesthesia of the lower lip after bilateral sagittal split osteotomy at a district general hospital

The Assessment of Neurosensory Disturbance Following Bilateral Sagittal Split Osteotomy With Subjective and Three-Dimensional Evaluation

“…Furthermore, there are also studies showing different incidences of IAND for different time periods. 9,11,34,37,40 The altered sensation was reported for all patients in the lower lip, and in mental region except for 2 patients (Supplementary Digital Content, Table 3, http://links.lww.com/SCS/D405) similar to other literature findings. 8,24 The sensory loss seen on the upper lip, cheek, and tongue was thought to be related with maxillomandibular surgeries and lingual nerve injuries.…”

“…Although some of the studies advocated that miniplates cause less IAND and faster recovery, 30,31 some of the literature findings showed no significant difference between the 2 types of fixation instruments on IAND in long-term. 31,32 There are studies evaluating IAND in the 1st, 3rd, and 6th months postoperatively, 11,12,25,27,33,34 however, according to Colella et al 35 incorrect results may occur before the postoperative first year. Therefore, patients were invited to the clinic for subjective evaluation at least 1 year after the surgery (20.43 AE 8.76 months on average) in the present study.…”

“…There are also studies with different incidences of IAND immediately after surgery in the literature 25,34,38 . Roychoudhury et al 38 reported the immediate incidence as 73.3% with the subjective test and 66.7% with the objective tests, Degala et al 25 and Mackinnon et al 34 also reported almost 90% of IAND incidence. Furthermore, there are also studies showing different incidences of IAND for different time periods 9,11,34,37,40 .…”

“…Although the present study is a retrospective study and the results were evaluated with the retrospective sensations of the patients, there are also many studies in the literature with results similar to our results. 17,25,26,33,34 All the patients included in this retrospective study had CBCT images taken 1month before surgery and on average 4months postoperatively. It is known that CBCT images give reliable and reproducible information about the position and the three-dimensional measurements of MC from different aspects with low radiation dose.…”

“…Similar to our study, Antony et al 3 also reported that disturbances were seen in all the patients on the first postoperative day, and Vaira et al 26 showed that all patients had sensory loss on the 7th day. There are also studies with different incidences of IAND immediately after surgery in the literature 25,34,38 . Roychoudhury et al 38 reported the immediate incidence as 73.3% with the subjective test and 66.7% with the objective tests, Degala et al 25 and Mackinnon et al 34 also reported almost 90% of IAND incidence.…”