Early changes in condylar position after mandibular advancement: a three-dimensional analysis

Méndez-Manjón, Irene; Guijarro‐Martínez, Raquel; Valls-Ontañón, Adaia; Hernández–Alfaro, Federico

doi:10.1016/j.ijom.2016.01.002

Cited by 28 publications

(26 citation statements)

References 27 publications

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“…Therefore, it is necessary to develop a standardized diagnostic standard and classification method for TMD through systematic and well-designed research56. The following are the most mutually agreed upon opinions among scholars57585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103.…”

Section: Postoperative Complicationsmentioning

confidence: 99%

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Complications associated with orthognathic surgery

Kim

2017

J Korean Assoc Oral Maxillofac Surg

118

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While most patients undergo orthognathic surgery for aesthetic purposes, aesthetic improvements are most often followed by postoperative functional complications. Therefore, patients must carefully decide whether their purpose of undergoing orthognathic surgery lies on the aesthetic side or the functional side. There is a wide variety of complications associated with orthognathic surgery. There should be a clear distinction between malpractice and complications. Complications can be resolved without any serious problems if the cause is detected early and adequate treatment provided. Oral and maxillofacial surgeons must have a full understanding of the types, causes, and treatment of complications, and should deliver this information to patients who develop these complications.

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Section: Postoperative Complicationsmentioning

confidence: 99%

“…3) Orthognathic surgery can improve or worsen the existing temporomandibular joint symptoms, or may not result in any changes at all8999100101102103.…”

Section: Postoperative Complicationsmentioning

confidence: 99%

Complications associated with orthognathic surgery

Kim

2017

J Korean Assoc Oral Maxillofac Surg

118

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“…Due to differences in study methodologies, however, a wide range of values have been reported . Furthermore, torsion of the condyle‐ramus segment during fixation of proximal and distal bony segments in mandibular surgery may provoke post‐surgical condylar remodelling, resorption and potential long‐term instability of surgical correction …”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9] Furthermore, torsion of the condyle-ramus segment during fixation of proximal and distal bony segments in mandibular surgery may provoke post-surgical condylar remodelling, resorption and potential long-term instability of surgical correction. [10][11][12][13][14][15] While studies have examined the accuracy of VSP-guided surgeries through the measurement of distal segment landmarks, no studies to our knowledge have quantified post-surgical condylar position changes in cases planned using VSP vs. conventional methods. In particular, there have been no reports on condylar positional changes identified using superimposed pre-and post-surgical 3D images, which overcomes many of the limitations and inaccuracies of measuring skeletal changes in 2D images.…”

Section: Introductionmentioning

confidence: 99%

Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Wan

Jackson

Chung

et al. 2019

Orthod Craniofacial Res

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Structured Abstract Objectives To assess the effect of virtual surgical planning (VSP) on the accuracy of condylar seating in surgical cases involving Bilateral Sagittal Split Osteotomy (BSSO). An additional aim was to quantify differences between actual surgical outcome and planned virtual outcome. Setting and sample population A private practice in Charlotte North Carolina. Twenty‐five consecutively operated subjects prepared with VSP and twenty consecutively subjects operated with conventional surgery planning were enrolled. Material and Methods Cone beam computed tomography (CBCT) scans were obtained before surgery (T1) and post‐surgery after splint removal (T2). The T1 and T2 CBCTs were superimposed on the anterior cranial base using voxel‐based registration. Three dimensional (3D) models were built and oriented to a 3D Frankfurt horizontal. Displacement of corresponding condylar landmarks was measured. Results No significant difference was found between the VSP and conventional group in the magnitude of translation or rotation of the condyles following surgery. VSP surgical outcomes differed significantly from predicted positions at all landmarks. Virtual surgical planning does not prevent changes to condylar position as a result of surgery. Actual surgical results differed significantly from VSP‐predicted outcomes. Conclusions Virtual surgical planning did not reduce the changes to condylar position and angulation that resulted from conventionally planned orthognathic surgery.

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“…Superior, posterior and medial joint spaces are reduced after orthognathic surgery, changes not related to the amount of the mandibular advancement that could possibly relate to TMJ dysfunction. However the measurements were performed in 2-D examinations, making it impossible to evaluate medial-lateral and rotational alterations [18][19][20].…”

Section: Discussionmentioning

confidence: 99%

Correlation between mandibular condylar position and clinical dysfunction index after bilateral sagittal split osteotomies

J¹,

González-Magaña²,

O³

2019

J Oral Health Craniofac Sci

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Several articles have discussed mandibular condyle position after bilateral sagittal split osteotomies (BSSO). However, previous studies have sought to establish a relationship between orthognathic surgery and the improvement of temporomandibular joint (TMJ) signs and symptoms. Also, they have been limited to two-dimensional evaluation of condylar position considering only the condylar "sag" or improper inferior seating of the condyle. The purpose of this study was to investigate a relationship between changes in condylar position using three-dimensional computed tomography and the negative clinical impact of BSSO on the temporomandibular joint.How to cite this article: Kalach Mussali AJ, Gonzalez-Magana F, Malagon Hidalgo HO. Correlation between mandibular condylar position and clinical dysfunction index after bilateral sagittal split osteotomies. J

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Early changes in condylar position after mandibular advancement: a three-dimensional analysis

Cited by 28 publications

References 27 publications

Complications associated with orthognathic surgery

Complications associated with orthognathic surgery

Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Correlation between mandibular condylar position and clinical dysfunction index after bilateral sagittal split osteotomies

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