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Levator muscle

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https://www.readbyqxmd.com/read/27893636/facial-contouring-by-targeted-restoration-of-facial-fat-compartment-volume-the-mid-face
#1
Wenjin Wang, Yun Xie, Ru-Lin Huang, Jia Zhou, Herrler Tanja, Peijuan Zhao, Chen Cheng, Sizheng Zhou, Lee L Q Pu, Qingfeng Li
BACKGROUND: Recent anatomical findings have suggested that facial fat distribution is complex and changes with age. Here, we developed a grafting technique based on the physiological distribution and volume changes of facial fat compartments to achieve a youthful and natural-looking face. METHODS: Forty cadaveric hemifaces were used for the dissection of fat compartments and neurovascular structures in the mid-face area. Seventy-eight patients were treated for cheek atrophy using our targeted restoration of mid-face fat compartment volume...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27886590/pelvic-floor-dynamics-during-high-impact-athletic-activities-a-computational-modeling-study
#2
Nicholas Dias, Yun Peng, Rose Khavari, Nissrine A Nakib, Robert M Sweet, Gerald W Timm, Arthur G Erdman, Timothy B Boone, Yingchun Zhang
BACKGROUND: Stress urinary incontinence is a significant problem in young female athletes, but the pathophysiology remains unclear because of the limited knowledge of the pelvic floor support function and limited capability of currently available assessment tools. The aim of our study is to develop an advanced computer modeling tool to better understand the dynamics of the internal pelvic floor during highly transient athletic activities. METHODS: Apelvic model was developed based on high-resolution MRI scans of a healthy nulliparous young female...
November 18, 2016: Clinical Biomechanics
https://www.readbyqxmd.com/read/27872979/evaluation-of-isolated-urinary-stress-incontinence-according-to-the-type-of-levator-ani-muscle-lesion-using-3-4d-transperineal-ultrasound-36%C3%A2-months-post-partum
#3
José Antonio García Mejido, Pamela Valdivieso Mejias, Ana Fernández Palacín, María José Bonomi Barby, Paloma De la Fuente Vaquero, José Antonio Sainz Bueno
INTRODUCTION: Vaginal delivery can lead to pelvic floor disorders. Many authors have described pelvic floor injuries that can predict future defects such as urinary incontinence and pelvic organ prolapse. We propose the assessment of urinary stress incontinence and its association with levator ani muscle (LAM) microtrauma (>20% in the levator hiatus area during Valsalva) and macrotraumas (avulsion) identified by 3/4D transperineal ultrasound (3D-TpUS) 36 months post-partum. MATERIALS AND METHODS: This was a prospective observational study including 168 nulliparous women...
November 21, 2016: International Urogynecology Journal
https://www.readbyqxmd.com/read/27868224/evaluation-of-levator-ani-muscle-throughout-the-different-stages-of-labor-by-transperineal-3d-ultrasound
#4
José Antonio García Mejido, Carmen M Suárez Serrano, Ana Fernéndez Palacín, Adriana Aquise Pino, María José Bonomi Barby, José Antonio Sainz Bueno
OBJECTIVE: Description and assessment by 3-D transperineal ultrasound of modifications suffered by pelvic floor muscles during the passage of the fetal head through the birth canal during the second stage of labor, as well as the identification of the precise moment in which levator ani muscle avulsion takes place. MATERIALS AND METHODS: Patients included were 35 primigravidae, recruited during the first stage of labor, with at term pregnancy (37-42 weeks), without serious maternal-fetal pathology and cephalic presentation...
November 21, 2016: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/27860404/perineal-alveolar-soft-part-sarcoma-treated-by-laparoscopy-assisted-total-pelvic-exenteration-combined-with-pubic-resection
#5
Toshisada Aiba, Keisuke Uehara, Satoshi Tsukushi, Yasushi Yoshino, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Masato Nagino
A 20-year-old woman with a perineal alveolar soft part sarcoma was referred to our hospital. MRI showed that an irregular oval tumor occupied the perineum. The tumor was contiguous to the vagina, rectum, levator muscle, and pubis and was diagnosed as alveolar soft part sarcoma by transvaginal biopsy. Laparoscopy-assisted total pelvic exenteration combined with a pubic resection was performed, and an R0 resection with a wide margin was achieved. It is well known that only R0 resection improves the outcome of patients with localized alveolar soft part sarcoma...
November 10, 2016: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/27856964/neonatal-satellite-cells-form-small-myotubes-in-vitro
#6
P L Carvajal Monroy, S Grefte, A M Kuijpers-Jagtman, J W Von den Hoff, F A D T G Wagener
Although palatal muscle reconstruction in patients with cleft palate takes place during early childhood, normal speech development is often not achieved. We hypothesized that the intrinsic properties of head satellite cells (SCs) and the young age of these patients contribute to the poor muscle regeneration after surgery. First, we studied the fiber type distribution and the expression of SC markers in ex vivo muscle tissue from head (branchiomeric) and limb (somite-derived) muscles from neonatal (2-wk-old) and young (9-wk-old) rats...
November 16, 2016: Journal of Dental Research
https://www.readbyqxmd.com/read/27829942/safety-and-usefulness-of-needle-guided-resection-of-levator-muscles-in-laparoscopic-abdominoperineal-resection-for-low-rectal-cancer
#7
Takehito Yamamoto, Akiyoshi Kanazawa, Hiroyuki Matsubara, Takuya Okamoto
INTRODUCTION: During laparoscopic abdominoperineal resection (APR) for low rectal cancer, it is difficult to resect the levator muscles and remove a cylindrical specimen without venturing close to the rectal wall to ensure negative circumferential resection margins (CRM). To solve this problem, we developed a needle-guided, laparoscopic, abdominoperineal resection (LAPR) technique. AIM: To present the safety and superiority of our technique, "needle-guided LAPR"...
2016: Wideochirurgia i Inne Techniki Mało Inwazyjne, Videosurgery and Other Miniinvasive Techniques
https://www.readbyqxmd.com/read/27826468/digital-analysis-of-eyelid-features-and-eyebrow-position-following-co2-laser-assisted-blepharoptosis-surgery
#8
Xiaodong Zheng, Hirohiko Kakizaki, Tomoko Goto, Atsushi Shiraishi
BACKGROUND: To compare the margin reflex distance of the upper (MRD-1) and lower (MRD-2) eyelids and the eyebrow height (EBH) in patients with involutional and hard contact lens wear--induced blepharoptosis before and after ptosis surgery. METHODS: Sixty patients with acquired blepharoptosis were studied. Group 1 consisted of 30 patients with involutional ptosis (age, 75.8 ± 6.4 years), and group 2 consisted of 30 patients with hard contact lens wear-induced ptosis (age, 50...
October 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27824705/correlation-between-echodefecography-and-3-dimensional-vaginal-ultrasonography-in-the-detection-of-perineal-descent-in-women-with-constipation-symptoms
#9
Sthela M Murad-Regadas, Francisco Sergio Pinheiro Regadas, Lusmar V Rodrigues, Adjra da Silva Vilarinho, Guilherme Buchen, Livia Olinda Borges, Lara B Veras, Mariana Murad da Cruz
BACKGROUND: Defecography is an established method of evaluating dynamic anorectal dysfunction, but conventional defecography does not allow for visualization of anatomic structures. OBJECTIVE: The purpose of this study was to describe the use of dynamic 3-dimensional endovaginal ultrasonography for evaluating perineal descent in comparison with echodefecography (3-dimensional anorectal ultrasonography) and to study the relationship between perineal descent and symptoms and anatomic/functional abnormalities of the pelvic floor...
December 2016: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/27816845/are-chronic-neck-pain-scapular-dyskinesis-and-altered-scapulothoracic-muscle-activity-interrelated-a-case-control-study-with-surface-and-fine-wire-emg
#10
Birgit Castelein, Ann Cools, Thierry Parlevliet, Barbara Cagnie
OBJECTIVES: The function of the scapula is important in normal neck function and might be disturbed in patients with neck pain. The surrounding muscular system is important for the function of the scapula. To date, it is not clear if patients with idiopathic neck pain show altered activity of these scapulothoracic muscles. Therefore, the objective of this study was to investigate differences in deeper and superficial lying scapulothoracic muscle activity between patients with idiopathic neck pain and healthy controls during arm elevation, and to identify the influence of scapular dyskinesis on muscle activity...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27813139/levator-ani-muscle-innervation-anatomical-study-in-human-fetus
#11
Krystel Nyangoh Timoh, Thomas Bessede, Cedric Lebacle, Mazen Zaitouna, Jelena Martinovic, Djibril Diallo, Maud Creze, Jean-Marc Chevallier, Emile Darai, Gérard Benoît, David Moszkowicz
AIMS: To characterize the nature and function of the levator ani muscle innervation pathways and to perform a comprehensive three-dimensional reconstruction of female pelvic innervation. METHODS: A computer-assisted anatomical dissection protocol was applied to seven female human fetuses, after approval from the national biomedicine agency. Specimens were serially sectioned and immunostained for overall (antibody against protein S100), somatic (antibody against peripheral myelin protein 22), adrenergic (antibody against tyrosine hydroxylase), cholinergic (antibody against vesicular acetylcholine transferase), and nitrergic (antibody against the neural isoform of nitric oxide synthase) nerve fibers...
November 4, 2016: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/27809552/utility-of-surgical-myotomy-in-the-dysphagia-due-to-oculopharyngeal-dystrophy
#12
Mª Asunción Acosta Mérida, Joaquín Marchena Gómez, Josefa Mª Afonso Déniz
Oculopharyngeal muscular dystrophy (OPMD), is a rare hereditary myopathy that affects mainly the levator palpebrae and the constrictor pharyngeal muscles, being able to cause severe dysphagia. It can be treated effectively by surgical cricopharyngeal myotomy, as in the case presented below.
November 4, 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27781241/-laparoscopic-total-mesorectum-excision-with-the-guidance-of-membrane-anatomy
#13
Pan Chi
The efficacy of laparoscopic total mesorectum excision (TME) has been confirmed by many clinical trials and guidelines. But two issues on laparoscopic TME are still questioned, including the integrity of specimen membrane of TME and the incidence of postoperative sexual dysfunction. According to my experiences and the primary results of the multicenter clinical trial (LASRE, clinicaltrials.gov identifier: NCT01899547) conducted by me, the integrity of the specimen membrane of laparoscopic TME is not inferior to the open TME...
October 25, 2016: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/27778369/is-bladder-neck-and-urethral-mobility-associated-with-urinary-incontinence-and-mode-of-delivery-4-years-after-childbirth
#14
Ingrid Volløyhaug, Isabelle van Gruting, Kim van Delft, Abdul H Sultan, Ranee Thakar
AIMS: To study changes in bladder neck, urethral mobility and urinary incontinence (UI) from pregnancy to 4 years postpartum and demonstrate any association to mode of delivery or presence of levator ani muscle (LAM) injury. Secondly, we aimed to correlate bladder neck and urethral mobility to UI symptoms. METHODS: Prospective study of 180 women, recruited in their first pregnancy and followed up 1 and/or 4 years postpartum. UI symptoms were assessed with a validated questionnaire...
October 24, 2016: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/27757354/the-lesser-palatine-nerve-innervates-the-levator-veli-palatini-muscle
#15
Hideaki Kishimoto, Yoshitaka Matsuura, Katsuya Kawai, Shigehito Yamada, Shigehiko Suzuki
When the lesser palatine nerve (LPN) is supposed to be a branch of the trigeminal nerve and innervate sensation of the soft palate, whether the LPN contains motor fibers is unclear. In this study, we monitored the electromyogram of the levator veli palatini (LVP) muscle on stimulating the LPN during palatoplasty in 3 patients. The electromyogram of the muscles showed the myogenic potential induced by electrostimulation of the LPN. Taken together with the finding from our previous anatomical study that the motor fibers come from the facial nerve, this result supports the double innervation theory of the LVP, which posits that both the pharyngeal plexus and the facial nerve innervate it...
September 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27757008/predictive-images-of-postoperative-levator-resection-outcome-using-image-processing-software
#16
Yuki Mawatari, Mikiko Fukushima
PURPOSE: This study aims to evaluate the efficacy of processed images to predict postoperative appearance following levator resection. METHODS: Analysis involved 109 eyes from 65 patients with blepharoptosis who underwent advancement of levator aponeurosis and Müller's muscle complex (levator resection). Predictive images were prepared from preoperative photographs using the image processing software (Adobe Photoshop(®)). Images of selected eyes were digitally enlarged in an appropriate manner and shown to patients prior to surgery...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27756553/the-effect-of-a-le-fort-i-incision-on-nose-and-upper-lip-dynamics-unraveling-the-mystery-of-the-le-fort-i-lip
#17
Herman Vercruysse, Luc Van Nassauw, Joan San Miguel-Moragas, Eva Lakiere, Sten Stevens, Geert Van Hemelen, Mirco Raffaini, Nasser Nadjmi
INTRODUCTION: Postoperative flattening of the upper lip with loss of lip pout and down turning of the corners of the mouth is often seen after Le Fort I surgery. We aim to determine which facial muscles are involved in this phenomenon to update the literature on this subject. METHODS: In 6 cadavers, a unilateral Le Fort I incision was executed. After removal of the skin, all individual facial muscles were identified and submitted to bilateral tactile traction, comparing incised sides with non-incised sides...
September 22, 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27751429/repair-of-old-perineal-laceration-accompanied-by-rectovaginal-fistula-using-levator-ani-muscle-interposition
#18
Shintaro Makino, Jun Takeda, Satoru Takeda
No abstract text is available yet for this article.
October 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27743085/secondary-blepharoplasty-correction-of-the-high-fold
#19
Kamol Wattanakrai, Nattawut Chiemchaisri, Penpun Wattanakrai
BACKGROUND: Blepharoplasty is a common aesthetic surgery performed worldwide. In Asians, too high eyelid folds after blepharoplasty cause an unsatisfactory aesthetic outcome that is difficult to correct. In this article, the authors propose surgical techniques to correct the high eyelid fold after blepharoplasty. METHODS: During a 4-year period, 213 secondary blepharoplasties were performed to correct high folds. Postoperative results were reviewed, graded, and analyzed...
October 14, 2016: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/27740951/high-double-eyelid-fold-correction-using-wide-dual-plane-dissection
#20
Kenneth K Kim, Woo-Seok Kim, Se Kwang Oh, Hong Seok Kim
BACKGROUND: The ability to correct unnatural-appearing, high, and deep double eyelid folds has been limited by the lack of redundant upper eyelid skin and the presence of prior incision line scars in patients. METHODS: From January 2000 to September 2011, 256 patients with high and deep double eyelid folds underwent our fold-lowering procedure. The first dissection was made at the superficial layer between the orbicularis oculi muscle and orbital septum/retroorbicularis oculi fat...
October 6, 2016: Annals of Plastic Surgery
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