Mathematical justification of zigzag cutting of superficial muscular-aponeurotic system in correction of age-related face changes: from intuition to calculation
Журнал: Пластическая хирургия и эстетическая медицина. 2026;(2-2):111-116.
DOI: 10.17116/plast.hirurgia2026022111
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Abstract
OBJECTIVE
To substantiate a mathematical analysis of segment length in zigzag mobilization of superficial muscular-aponeurotic system (SMAS) based on specific jowl parameters in each patient.
MATERIAL AND METHODS
A customized mathematical calculation for jowl correction is based on cephalometric parameters of soft tissue ptosis — height (H) and width (L) — using the formula: AB = ((H + L))/(2cos φ), where φ is the angle between the normal to the mandible and masticatory line.
RESULTS
Fifty-seven patients underwent surgery. All ones achieved clear mandibular line and recovered cervicomental angle. There were no necroses, hematomas, paresis, or paralysis.
CONCLUSION
A customized approach to correcting age-related changes based on preoperative parameters allows for optimal results.
Keywords
- preoperative analysis
- rejuvenation surgeries
- superficial muscular-aponeurotic system
- SMAS lifting
- zigzag cutting
- cephalometric measurements
- individual calculations
Дата поступления: 23.03.2026
Дата принятия в печать: 15.04.2026
Дата публикации: 21.05.2026
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