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Updated: May 9, 2026
In Vivo Functional Assessment of Rat Masseter Muscle Following Surgical Creation of a Volumetric Muscle Loss (VML) Injury
Published on: November 15, 2024
Influence of partial masseter muscle resection along with reduction of mandibular angle
Jie Yuan1, Qin Qin Zhu, Ying Zhang
1Department of Plastic and Reconstructive Surgery, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Unlabelled:
The mandibular angle plays an important role in determining the Asian human facial attractiveness. Currently, mandibular angle osteotomy is often reported as the correction of square face appearance due to its prominence. However, no previous study has documented the long-term outcome of partial masseter muscle resection along with reduction of mandibular angle.
Objective:
Our study aims to investigate the outcome and complications of partial masseter muscle resection along with reduction of mandibular angle in long-term follow-up.
Method:
One hundred fifty-one patients were subjected to the computed tomography scan before and 3 years after surgery. Morphometrical analysis was conducted on all parameters for clinical evaluation, so as to reveal the change of masseter muscle, the postsurgical result, and the complication.
Results:
All patients were satisfied with the optimal outcome of the reduction of mandibular angle and masseter muscle. Morphometrical analysis indicated that the volume of masseter muscle changed statistically significantly before and after surgery (reduced 21.31 ± 7.64% on left, 20.77 ± 7.45% on right). Complications included swelling and low lip numbness, yet no patients reported infection or facial nerve injury.
Conclusion:
Partial masseter muscle resection along with reduction of mandibular angle can improve the appearance of the patients greatly, and only a few complications occurred.
