Mandibular angle resection and masticatory muscle hypertrophy – A technical note and morphological optimization

Andreishchev, A.R.; Nicot, Romain; Ferri, Joël

doi:10.1016/j.revsto.2014.06.002

Cited by 10 publications

(19 citation statements)

References 8 publications

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“…7 Therefore, the LS will protrude further, as the volume of the masseter on the LS remains large even postoperatively, and thus the face will appear wider on the LS. Therefore, in orthognathic surgery addressing the asymmetry of the masticatory muscles, surgical approaches, [15][16][17] such as masseter resection, should performed in addition to the orthognathic surgery, or botulinum toxin A should be injected directly into the muscle to reduce the masseter mass. 18,19 The muscle asymmetry in the patients in this study is considered to be due to asymmetry of the mandible, as it causes differences in the distance that the muscles on the two sides must move, and differences in the force applied to the bilateral muscles.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Orthognathic Surgery on Changes in Masticatory Muscle Volume in Patients With Facial Asymmetry

Park

Ryu

et al. 2021

Journal of Craniofacial Surgery

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: The masseter muscle changes remarkably with orthognathic surgery and has a marked influence on the contours of the lower face. If the postoperative volume change of masticatory muscles, including the masseter muscles, can be predicted, it will facilitate preoperative planning and outcome prediction. This study investigated the association of masticatory muscle volume according to the presence or absence of facial asymmetry, and evaluated whether the volume of masticatory muscles, including that of the masseter muscle, changes after orthognathic surgery in facial asymmetry patients. Twenty patients who underwent LeFort I osteotomy and bilateral sagittal segmentation ramus osteotomy (BSSRO) with facial asymmetry between 2011 and 2017 were assigned to the asymmetric group. Additionally, 207 patients with a simple nasal fracture between 2016 and 2019 were included as the common group. Threedimensional computed tomography images were retrospectively analyzed and compared between the asymmetric group and common group. The volume of both temporal and masseter muscles differed according to facial asymmetry, with the asymmetry in the muscle volume increasing in proportion to the degree of facial asymmetry. The difference in masseter volume on the shortened and lengthened sides was significantly reduced after orthognathic surgery, but a difference of about 1 cm3 remained. Additionally, the masticatory muscle volume on the lengthened side tended to be decreased more than that on the shortened side. Consideration of the postoperative change in the volume of the masticatory muscles may be helpful in planning orthognathic surgery in facial asymmetry patients.

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Section: Discussionmentioning

confidence: 99%

The Effect of Orthognathic Surgery on Changes in Masticatory Muscle Volume in Patients With Facial Asymmetry

Park

Ryu

et al. 2021

Journal of Craniofacial Surgery

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“…After applying the study criteria, 27 publications were excluded because of other associated surgical procedures ( 9 - 12 ), other therapeutic applications of BFP ( 2 , 13 - 15 ), technical notes ( 4 , 16 - 24 ), studies with less than 10 patients ( 7 , 25 ), case report ( 26 , 27 ), article reviews ( 28 - 30 ), and absence of the outcomes of interest ( 31 , 32 ), respectively.…”

Section: Resultsmentioning

confidence: 99%

Buccal fat pad excision for cheek refinement: A systematic review

et al. 2021

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Background Buccal Fat Pad (BFP) excision has become an aesthetic surgical procedure. Although this procedure is quite common, it is important to bear in mind that the scientific evidence supporting the efficacy of this treatment is scarce and of low quality. The purpose of this systematic review was to analyse all relevant data to assess the efficacy and safety of BFP excision for improving midface aesthetics. Material and Methods A thorough search of MEDLINE (PubMed), Scopus and Cochrane Library databases was conducted. The PICO approach was used where healthy patients seeking cheek slimming and facial silhouette refining undergo BFP excision and were compared before and after surgery in terms of BFP volume reduction, adverse effects and patient satisfaction. Results Of the 1,413 references identified, 4 were included in the qualitative synthesis. Only one study reported BFP volume reduction, which was 3.10 mL (95%CI: 2.38 to 3.80; P < 0.001), and the mean volume of the excised tissue was 2.74 ± 0.69 mL (range, 1.8-4.9 mL). 84.6% of the patients stated that their facial contour was much better and the remaining 15.4% noticed that the appearance of their cheeks following BFP excision was better. Seven complications were reported in the 134 cheek refinement procedures. Conclusions BFP removal has an initially favorable outcome for facial aesthetics and a low postoperative complication rate, however, there are many procedures being performed with poor quality methodology and there is also a lack of published data on its long-term follow-up results. Key words: Buccal fat pad, buccal fat pad excision, surgery, plastic, aesthetics, cheek refinement, facial silhouette refining.

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“…Literature reports quote 2 disadvantages of the extraoral approach for debulking the hypertrophied masseter and osteoplasty of the mandibular angle, namely, the creation of a surgical scar and the risk of possible injury to the marginal mandibular division of the facial nerve. 15,16 Both are probable complications of the surgical technique described. Nevertheless, there are also several advantages of this approach, such as wide local access and clear visualization of the surgical field, precise transection of the required and predetermined amount of muscle tissue from the planned location, ease in shaping and contouring of the angle, and reduced risk of inadvertent injury to the facial vessels.…”

Section: Discussionmentioning

confidence: 99%

Angle Osteoplasty and Cosmetic Debulking for Correction of a Case of Unilateral Masseteric Hypertrophy

Jeyaraj

2020

Am J Cosmet Surg

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Facial asymmetry is one of the commonest causes of impaired aesthetics, serving as a strong motivation for patients to seek corrective treatment. Benign masseteric hypertrophy is a well-known, albeit uncommon condition of rather obscure etiology, resulting from unilateral or bilateral increase in volume and bulk of the masseter muscle, that may or may not be accompanied by hyperostosis of the underlying bony angle of the mandible. This report elaborates a modified surgical modality and operative technique that effectively addresses both, the hard as well as soft tissue malformations in the region simultaneously, and is associated with the least incidence of relapse and recurrence of the condition. A 26-year-old woman with severe facial asymmetry resulting from unilateral masseteric hypertrophy was taken up for surgical debulking of the masseter. Surgical resection of one-third of the hypertrophied muscle bulk from its inner or medial aspect, followed by shaving of bony spurs and recontouring of angle of the mandible, was done. The surgical technique described is a definitive, efficacious, and reliable intervention for successful and long-term management of idiopathic masseter muscle hypertrophy that results in an excellent and long-lasting aesthetic outcome.

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Mandibular angle resection and masticatory muscle hypertrophy – A technical note and morphological optimization

Cited by 10 publications

References 8 publications

The Effect of Orthognathic Surgery on Changes in Masticatory Muscle Volume in Patients With Facial Asymmetry

The Effect of Orthognathic Surgery on Changes in Masticatory Muscle Volume in Patients With Facial Asymmetry

Buccal fat pad excision for cheek refinement: A systematic review

Angle Osteoplasty and Cosmetic Debulking for Correction of a Case of Unilateral Masseteric Hypertrophy

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