Objective: The cause of and prophylactic measures for the complications of the frontalis aponeurosis flap suspension for correction of blepharoptosis were investigated to improve the operative results.
Methods: Five hundred and thirteen patients who were found to have complications after frontalis aponeurosis flap suspension for blepharoptosis were studied by follow-up examinations.
Results: Fourteen kinds of postoperative complications were found and cured.
Conclusion: Most of the postoperative complications following blepharoptosis correction can be prevented and well treated. The frontalis aponeurosis flap technique is reliable for correction of complete blepharoptosis.
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Cureus
July 2024
Plastic Surgery Oculoplastic Surgery, Matsuo Plastic and Oculoplastic Surgery Clinic, Hamamatsu, JPN.
Levator palpebrae superioris muscle (LPSM) and facial muscles comprise fast-twitch fibers (FTFs) and slow-twitch fibers (STFs) but lack muscle spindles required to contract STFs reflexively. Voluntary contractions and microsaccades of FTFs in LPSM stretch mechanoreceptors in superior tarsal muscle (STM) to induce phasic contractions of STFs in LPSM and frontalis muscle via mesencephalic trigeminal nucleus (MTN). They also induce prolonged contractions of STFs in bilateral frontalis and orbital orbicularis oculi muscles and physiological arousal via MTN and rostral locus coeruleus (LC).
View Article and Find Full Text PDFCureus
June 2024
Plastic and Reconstructive Surgery, Shinshu University School of Medicine, Matsumoto, JPN.
The levator palpebrae superioris muscle (LPSM) and facial muscles comprise both fast-twitch fibers (FTFs) and slow-twitch fibers (STFs). Still, they lack the muscle spindles to induce reflex contractions of STFs. Because reflex contractions of STFs in the LPSM and frontalis muscle, which are the major eyelid opening muscles, are induced by stretching of mechanoreceptors in the superior tarsal muscle, those in the palpebral orbicularis oculi muscle (POOM), which is the major eyelid closing muscle, should not be induced by stretching of the same proprioceptors but instead induced by the proprioceptors in the vicinity of the POOM.
View Article and Find Full Text PDFJ Craniofac Surg
October 2024
Department of Ophthalmic Cosmetology, Shaanxi Eye Hospital, Xi'an People's Hospital (Xi'an Fourth Hospital), Affiliated People's Hospital of Northwest University, Xi'an, Shaanxi, China.
Background: Ptosis and upper eyelid depression were previously diagnosed as 2 separate diseases. The authors found that in patients with aponeurotic ptosis accompanied by upper eyelid depression, the main cause of upper eyelid depression was impaired dynamic transmission of the levator aponeurosis.
Objective: To analyze the causes of upper eyelid depression in patients with aponeurotic ptosis accompanied by upper eyelid depression and to introduce the best treatment methods.
Plast Reconstr Surg Glob Open
November 2023
Department of Plastic and Reconstructive Surgery, Keio University, Tokyo, Japan.
Pediatric-acquired idiopathic blepharoptosis is rare, and no studies on surgery for the disease have been reported. We present a case of the disease with an atypical postoperative course. The patient initially underwent levator aponeurosis advancement.
View Article and Find Full Text PDFBackground: There are differing opinions regarding the specific mechanical forces related to contraction of the frontalis muscle and how it exerts its effects on eyebrow motion.
Objectives: The goal of this study was to perform a detailed anatomic and clinical study of the frontalis muscle in cadavers and patients to better define the movement of the frontalis muscle.
Methods: This study consisted of 4 arms, which included: (1) dynamic ecography to evaluate movement of the frontalis muscle, (2) anatomical study of the relationship between the frontalis muscle and the deep fascia, (3) histological study to define the frontalis muscle attachments, and (4) clinical study to evaluate the action of the frontalis muscle in patients undergoing a temporal facelift.
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