Medial pterygoid muscle and stylomandibular ligament: the effects on postoperative stability

Abstract The postoperative skeletal stability following surgical advancement of the mandible can be influenced by several factors. The effect of the medial pterygoid muscle and the stylomandibular ligament on the stability of results following surgical advancement has possibly been underestimated. I...

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Bibliographic Details
Published in:International journal of oral and maxillofacial surgery 2013-01, Vol.42 (1), p.43-48
Main Authors: Beukes, J, Reyneke, J.P, Becker, P.J
Format: Article
Language:English
Subjects:
Adolescent
Adult
bilateral sagittal split osteotomy (BSSO)
Biological and medical sciences
Cephalometry - methods
Chin - pathology
Dentistry
Female
Follow-Up Studies
Humans
Ligaments - surgery
Male
Malocclusion, Angle Class II - surgery
Mandible - pathology
Mandibular Advancement - methods
Mandibular Condyle - pathology
medial pterygoid muscle
Medical sciences
Middle Aged
Orthopedic surgery
Osteotomy, Sagittal Split Ramus - methods
Otorhinolaryngology. Stomatology
Pterygoid Muscles - surgery
Recurrence
relapse
Retrospective Studies
skeletal stability
stylomandibular ligament
Surgery
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Temporal Bone - surgery
Treatment Outcome
Young Adult
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Summary:Abstract The postoperative skeletal stability following surgical advancement of the mandible can be influenced by several factors. The effect of the medial pterygoid muscle and the stylomandibular ligament on the stability of results following surgical advancement has possibly been underestimated. In this retrospective study, the long-term postoperative skeletal stability following surgical advancement of the mandible in two groups of patients was studied and compared. In one group the medial pterygoid muscle and the stylomandibular ligament were stripped from the medial side of the angle of the mandible during the bilateral sagittal split osteotomy (BSSO) procedure while for the other group of patients these muscles and ligaments were left attached. The long term skeletal stability of the two groups was compared and the group that had the muscles and the ligaments stripped proved to be more stable than the other group.
ISSN:0901-5027
1399-0020
DOI:10.1016/j.ijom.2012.05.010