A New Assisted Fixation Technique to Prevent Zygoma Displacement in Malar Reduction

Shao, Zhen; Xie, Yong-xue; Yu, Bo; Liu, Ling; Du, Tai-chao

doi:10.1007/s00266-012-0033-9

Cited by 17 publications

(3 citation statements)

References 15 publications

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“…If there is no stable fixation in the osteotomy area, muscle traction is the main cause of ptosis, and it will lead to delayed healing and even nonunion. [14][15][16][17][18] As consequence, the bone block moves downward under the traction of masseter muscle, resulting in soft tissue ptosis; 5. some patients have more soft tissue in the middle face before operation, which may aggravate the sagging after operation.…”

Section: Discussionmentioning

confidence: 99%

“…the most important motive force of zygomatic arch complex comes from the masseter muscle attached to the zygoma. If there is no stable fixation in the osteotomy area, muscle traction is the main cause of ptosis, and it will lead to delayed healing and even nonunion 14–18 . As consequence, the bone block moves downward under the traction of masseter muscle, resulting in soft tissue ptosis;…”

Section: Discussionmentioning

confidence: 99%

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Midfacial Soft Tissue Changes After Reduction Malarplasty: A Computed Tomographic Study

Gao

Wei

Yuan

et al. 2021

Journal of Craniofacial Surgery

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Background:The reduction malarplasty has become one of the most popular esthetic surgeries among Asian women to improve facial contour. However, it is still controversial whether midfacial soft tissue changes after surgery, and more studies are needed. Methods: This retrospective observational study reviewed 30 patients who underwent L-shaped reduction malarplasty during January 2018 and August 2019. The preoperative and postoperative soft tissue thickness and the angle of nasolabial fold of the midfacial were assessed using photographs, threedimensional skull computerized tomography images, and the Wrinkle Severity Rating Scale. Results: The postoperative average level of nasolabial fold angle was lower than that observed in preoperative conditions, with the difference being statistically significant (t ¼ -10.262, P < 0.001). The postoperative fifth and sixth layers of soft tissue in the midface were significantly higher than those observed in preoperative tissues. Conclusions: Although L-shaped reduction malarplasty has evident effects on soft tissue changes of middle face, they are within acceptable ranges and do not affect patient satisfaction.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Midfacial Soft Tissue Changes After Reduction Malarplasty: A Computed Tomographic Study

Gao

Wei

Yuan

et al. 2021

Journal of Craniofacial Surgery

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“…The fundamental problem of LORM is the instability due to poor fixation, which is exaggerated by powerful masseteric inferior pulling action [ 19 , 20 ]. Not surprisingly, the literature revealed that postoperative zygomatic complex mobility is conductive to complications such as malunion or nonunion with resultant unfavourable outcomes such as sagging of the cheek, facial asymmetry, malar depression, and restricted jaw movement [ 16 , 21 – 27 ]. All these outcomes mandate corrective surgical procedures through aggressive approaches such as the bicoronal flap approach that could result in major morbidities like big facial scar, hair loss, and facial nerve injury [ 16 , 22 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Stability of different fixation methods after reduction malarplasty under average and maximum masticatory forces: a finite element analysis

et al. 2023

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Background Although titanium plates/screws are effective fixation methods (FM) after L-shaped osteotomy reduction malarplasty (LORM), the ideal FM remains controversial. This first finite element analysis (FEA) aimed to study the effect of various zygomatic body/zygomatic arch FM combinations and their placement vectors on the zygoma complex stability after virtual LORM under the effect of both average (150 N/mm2) and maximum (750 N/mm2) forces and three-dimensional (3D) mapping of stress and strain parameters distribution over the zygomatic bone, fixation methods, and total model. Results The fixation methods about the short-arm of the L-shaped osteotomy showed lower stress, strain, and displacement values than those across the long-arm osteotomy site. Combined with any zygomatic arch fixation methods (ZAFm), the two bicortical screws group (2LS) on the zygomatic body osteotomy site resulted in smaller displacements and the lowest zygoma bone stress and displacement when combined with Mortice–Tenon structure (MT) as zygomatic arch fixation method. Applied forces caused statistically significant differences in zygomatic bone stress (P < 0.001 and P = 0.001) and displacement (P = 0.001 and P = 0.002). Conclusion All FMs both on the zygomatic body and zygomatic arch provide adequate zygomatic complex stability after LORM. The 2LS group showed better resistance than rectangular plate (RP) and square plate (SP) with lower stress concentrations. The L-shaped plate with short-wing on the maxilla (LPwM) is more stable than having the short-wing on the zygoma bone (LPwZ). Future prospective clinical studies are required to validate the current findings.

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Zygomatic Arch Reduction and Malarplasty with Multiple Osteotomies: Its Geometric Considerations

Tang

2014

Aesth Plast Surg

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A New Assisted Fixation Technique to Prevent Zygoma Displacement in Malar Reduction

Abstract: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Cited by 17 publications

References 15 publications

Midfacial Soft Tissue Changes After Reduction Malarplasty: A Computed Tomographic Study

Midfacial Soft Tissue Changes After Reduction Malarplasty: A Computed Tomographic Study

Stability of different fixation methods after reduction malarplasty under average and maximum masticatory forces: a finite element analysis

Zygomatic Arch Reduction and Malarplasty with Multiple Osteotomies: Its Geometric Considerations

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