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Bifurcating Method for Subcutaneous Indwelling of Nonabsorbable Threads.

Plast Reconstr Surg Glob Open

January 2025

From the Department of Plastic and Reconstructive Surgery, Keio University School of Medicine, Tokyo, Japan.

Subcutaneous indwelling of nonabsorbable threads for tissue fixation and tension reduction is often used in plastic surgery and is applied in breast reduction surgery, umbilicoplasty, and in frontalis muscle lifting for congenital ptosis. However, in a few cases, exposure of the indwelling thread necessitates its removal. Exposure of the indwelling threads mostly occurs due to exposure of the knots.

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Background: Understanding the interplay of muscle activity in the upper face is crucial as it can significantly impact the effectiveness and safety of aesthetic treatments. Traditional injection algorithms typically focus on the general 2D and 3D anatomy of muscles, often neglecting the areas where muscles exert the greatest force during facial expressions.

Objectives: To analyze the location of greatest morphological change in upper facial muscles procerus muscle (PM), corrugator supercilia muscle (CSM), orbicularis oculi muscle (OOM) and frontalis muscle (FM) during various facial expressions.

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Article Synopsis
  • This study compares the outcomes and characteristics of frontal sling surgery for correcting ptosis in pediatric versus adult patients.
  • The research included 62 patients, revealing that simple congenital ptosis was most common in children, while adults often had myogenic ptosis related to systemic conditions.
  • The results indicated significant differences in pre-operative measurements and complications, with adults showing higher rates of issues like sling extrusion and a correlation between previous surgeries and postoperative complications.
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Article Synopsis
  • Mild-to-moderate blepharoptosis can negatively impact appearance, with some patients hesitant to pursue surgery; Botulinum neurotoxin A (BoNT-A) injections offer a non-surgical alternative.
  • A study included 49 patients (39 females, 10 males) with various causes of eyelid ptosis, using BoNT-A injections and measuring outcomes through MRD-1 changes and patient questionnaires at multiple intervals.
  • Results showed significant eyelid elevation post-treatment, with most patients experiencing improvement and a high willingness to repeat the procedure, although the effects diminished after 24 weeks.
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Article Synopsis
  • - The study examined muscle changes in myasthenia gravis (MG) patients experiencing fatigue, using quantitative electromyography (QEMG) and assessing their fatigue and disease severity through various measures.
  • - Results indicated that MG patients with fatigue had distinct muscle electromagnetic patterns, including shorter and smaller muscle unit potentials, and these patterns were linked to higher fatigue levels and reduced muscle strength.
  • - The findings suggest that muscle morphology in MG patients correlates with fatigue severity, paving the way for potential new insights into understanding and treating fatigue in these patients.
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