TY - JOUR
T1 - The effects of orthognathic surgery on mandibular range of motion
AU - Aragon, Steven B.
AU - Van Sickels, Joseph E.
AU - Dolwick, M. Franklin
AU - Flanary, Carolyn M.
PY - 1985/12
Y1 - 1985/12
N2 - A prospective study of 55 orthognathic surgical patients was done to determine the effects of surgery on mandibular range of motion. None of the patients had oral physiotherapy during the course of the study. Nineteen patients had mandibular osteotomies, 21 had maxillary osteotomies, and 18 had two-jaw operations. Maximal interincisal opening (MIO), right and left lateral excursion, and protrusive measurements were obtained preoperatively and at six or more months following surgery. MIO was significantly reduced in both categories of mandibular osteotomies. A sagittal split osteotomy to advance the mandible was associated with the greatest mean reduction of 29%, while a vertical subcondylar osteotomy to set the mandible back had a mean reduction of 10%. Likewise, decreases in MIO were noted with combined surgical procedures. Le Fort I and sagittal split osteotomies were associated with a mean decrease in MIO of 28%, while Le Fort I and vertical subcondylar osteotomies had a mean decrease of 9%. Minimal change in MIO were noted with isolated maxillary osteotomies. These results are similar to the findings of other investigators and indicate the critical need for a sound postoperative rehabilitation program follwing orthognathic procedures to prevent hypomobility.
AB - A prospective study of 55 orthognathic surgical patients was done to determine the effects of surgery on mandibular range of motion. None of the patients had oral physiotherapy during the course of the study. Nineteen patients had mandibular osteotomies, 21 had maxillary osteotomies, and 18 had two-jaw operations. Maximal interincisal opening (MIO), right and left lateral excursion, and protrusive measurements were obtained preoperatively and at six or more months following surgery. MIO was significantly reduced in both categories of mandibular osteotomies. A sagittal split osteotomy to advance the mandible was associated with the greatest mean reduction of 29%, while a vertical subcondylar osteotomy to set the mandible back had a mean reduction of 10%. Likewise, decreases in MIO were noted with combined surgical procedures. Le Fort I and sagittal split osteotomies were associated with a mean decrease in MIO of 28%, while Le Fort I and vertical subcondylar osteotomies had a mean decrease of 9%. Minimal change in MIO were noted with isolated maxillary osteotomies. These results are similar to the findings of other investigators and indicate the critical need for a sound postoperative rehabilitation program follwing orthognathic procedures to prevent hypomobility.
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U2 - 10.1016/0278-2391(85)90006-0
DO - 10.1016/0278-2391(85)90006-0
M3 - Article
C2 - 3864947
AN - SCOPUS:0022374309
SN - 0278-2391
VL - 43
SP - 938
EP - 943
JO - Journal of Oral and Maxillofacial Surgery
JF - Journal of Oral and Maxillofacial Surgery
IS - 12
ER -