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Nerve transfer

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https://www.readbyqxmd.com/read/29452877/the-split-hypoglossal-nerve-versus-the-cross-face-nerve-graft-to-supply-the-free-functional-muscle-transfer-for-facial-reanimation-a-comparative-study
#1
Tarek A Amer, Mohamed S El Kholy
Long-standing cases of facial paralysis are currently treated with free functional muscle transfer. Several nerves are mentioned in the literature to supply the free muscle transfer. The aim of this study is to compare the split hypoglossal nerve and the cross-face nerve graft to supply the free functional muscle transfer in facial reanimation. Of 94 patients with long-standing, unilateral facial palsy, 49 were treated using the latissimus dorsi muscle supplied by the split hypoglossal nerve, and 45 patients were treated using the latissmus dorsi muscle supplied by healthy contralateral buccal branch of the facial nerve...
January 31, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29452441/assessing-the-safety-and-efficacy-of-regional-anesthesia-for-lower-extremity-microvascular-reconstruction-enhancing-recovery
#2
Qing Zhao Ruan, Shawn Diamond, Scott Zimmer, Matthew L Iorio
BACKGROUND: Perioperative pain, increased sympathetic tone, and peripheral vasospasm may be safely managed with regional nerve blockade during microvascular reconstruction in the lower extremity. Limited reports exist in this setting; therefore, we evaluated our use of peripheral nerve catheters (PNCs) during microvascular limb salvage to determine safety and efficacy for both patient and flap. METHODS: A single-institution, retrospective review of a prospectively maintained database on all patients with lower extremity free tissue transfers between 2012 and 2017 was completed...
February 16, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29451438/reinnervation-of-the-rectum-with-transfer-of-the-genital-branch-of-the-genitofemoral-nerve-to-the-pelvic-nerve-in-rats
#3
Chuanjiang Dong, Ping Zhu, Zonglan Xie, Zheqi Fan, Ziqiang Dong
OBJECTIVE The purpose of this study was to determine the feasibility of rectum reinnervation with transfer of a primarily genitofemoral nerve to the pelvic nerve in the rat. METHODS Thirty-six male rats were randomly divided into 3 groups: rats in the nerve transfer group (n = 12) were subjected to rectal denervation and then bilateral genitofemoral nerve-pelvic nerve transfer; rats in the nerve resection group (n = 12) underwent rectum denervation without nerve transfer; and rats in the control group (n = 12) underwent sham surgery...
February 16, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29451212/is-it-necessary-to-use-the-entire-root-as-a-donor-when-transferring-contralateral-c-7-nerve-to-repair-median-nerve
#4
Kai-Ming Gao, Jie Lao, Wen-Jie Guan, Jing-Jing Hu
If a partial contralateral C 7 nerve is transferred to a recipient injured nerve, results are not satisfactory. However, if an entire contralateral C 7 nerve is used to repair two nerves, both recipient nerves show good recovery. These findings seem contradictory, as the above two methods use the same donor nerve, only the cutting method of the contralateral C 7 nerve is different. To verify whether this can actually result in different repair effects, we divided rats with right total brachial plexus injury into three groups...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29444175/tomographic-optical-imaging-of-cortical-responses-after-crossing-nerve-transfer-in-mice
#5
Keiichi Maniwa, Haruyoshi Yamashita, Hiroaki Tsukano, Ryuichi Hishida, Naoto Endo, Minoru Shibata, Katsuei Shibuki
To understand the neural mechanisms underlying the therapeutic effects of crossing nerve transfer for brachial plexus injuries in human patients, we investigated the cortical responses after crossing nerve transfer in mice using conventional and tomographic optical imaging. The distal cut ends of the left median and ulnar nerves were connected to the central cut ends of the right median and ulnar nerves with a sciatic nerve graft at 8 weeks of age. Eight weeks after the operation, the responses in the primary somatosensory cortex (S1) elicited by vibratory stimulation applied to the left forepaw were visualized based on activity-dependent flavoprotein fluorescence changes...
2018: PloS One
https://www.readbyqxmd.com/read/29436207/alternative-surgical-methods-in-patients-with-recurrent-palmar-hyperhidrosis-and-compensatory-hyperhidrosis
#6
Hee Suk Jung, Doo Yun Lee, Joon Suk Park
Recurrent hyperhidrosis after thoracic sympathectomy is an uncomfortable condition, and compensatory hyperhidrosis (CH) is one of the most troublesome side effects. Here, we describe two patients with recurrent palmar hyperhidrosis (PH) and CH over the whole body simultaneously. They were treated with bilateral T4 sympathetic clipping and reconstruction of the sympathetic nerve from a T5 to T8 sympathetic nerve graft, which was transferred to the resected T3 sympathetic bed site. They reported improvements in sweating and were fully satisfied with the results...
March 2018: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29433411/spinal-accessory-nerve-repair-using-a-direct-nerve-transfer-from-the-upper-trunk-results-with-2-years-follow-up
#7
Adeline Cambon-Binder, Lynda Preure, Heba Dubert-Khalifa, Pierre-Sylvain Marcheix, Zoubir Belkheyar
Spinal accessory nerve grafting requires identification of both nerve stumps in the scar tissue, which is sometimes difficult. We propose a direct nerve transfer using a fascicle from the posterior division of the upper trunk. We retrospectively reviewed 11 patients with trapezius palsy due to an iatrogenic injury of the spinal accessory nerve in nine cases. The mean age was 38 years (range 21-59). Preoperatively, patients showed shoulder weakness and limited range of motion. At a mean follow-up of 25 months, active shoulder abduction improvement averaged 57°...
January 1, 2018: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29430395/anterior-capsule-reconstruction-technique-with-an-acellular-dermal-allograft
#8
Adam Kwapisz, John M Tokish
An irreparable subscapularis may have a debilitating influence on glenohumeral joint biomechanics. Traditional treatment approaches are focused on tendon transfers, among which the most popular are pectoralis major and latissimus dorsi transfers. However, these techniques present significant retear rates, possible nerve injuries, and altered biomechanics. Other techniques like tibialis anterior or iliotibial autograft grafting also have many reported failures. We describe an all-arthroscopic anterior capsule reconstruction technique with an acellular dermal graft...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29427450/reconstruction-of-the-plantar-toe-with-a-distal-reverse-instep-sensory-island-flap
#9
Mohammad Ali Hosseinian, Ali Gharibi Loron, Behzad Nemati Honar
BACKGROUND: Plantar toe ulcers are a challenging surgical problem. There are several methods for reconstruction, but no attention has been given to the preservation of sensation. This report proposes a method to provide protective sensation for the reconstructed area. PATIENTS AND METHODS: The ulcers of seven patients ranged from 2 × 3 to 7 × 3 cm with defects of the plantar first toe and distal metatarsus, including four burns, a trauma, a diabetic ulcer, and a neuropathy injury reconstructed with a distal reverse instep sensory island (DRISI) flap...
February 10, 2018: Microsurgery
https://www.readbyqxmd.com/read/29426435/sural-nerve-graft-for-neurotrophic-keratitis-early-results
#10
Ezekiel Weis, Avi Rubinov, Ahmed Rustom Al-Ghoul, Farrah Meng-Kay Yau
OBJECTIVE: To report our center's experience in treating neurotrophic keratitis (NK) through corneal neurotization using nerve transfers and sural nerve grafts in the adult population. DESIGN: Prospective observational case series, single center study. METHODS: Six consecutive patients (5 males and 1 female) with severe NK were evaluated. All patients had complete corneal anaesthesia in the neurotrophic eye. Three patients had unstable epithelial disease with recurrent breakdowns despite maximal medical and standard surgical management; three presented with dense scarring of their cornea...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29424673/nerve-fascicle-transfer-using-a-part-of-the-c-7-nerve-for-spinal-accessory-nerve-injury
#11
Xuan Ye, Yun-Dong Shen, Jun-Tao Feng, Wen-Dong Xu
OBJECTIVE Spinal accessory nerve (SAN) injury results in a series of shoulder dysfunctions and continuous pain. However, current treatments are limited by the lack of donor nerves as well as by undesirable nerve regeneration. Here, the authors report a modified nerve transfer technique in which they employ a nerve fascicle from the posterior division (PD) of the ipsilateral C-7 nerve to repair SAN injury. The technique, first performed in cadavers, was then undertaken in 2 patients. METHODS Six fresh cadavers (12 sides of the SAN and ipsilateral C-7) were studied to observe the anatomical relationship between the SAN and C-7 nerve...
February 9, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29418073/a-flexible-high-performance-photoimaging-device-based-on-bioinspired-hierarchical-multiple-patterned-plasmonic-nanostructures
#12
Yoon Ho Lee, Tae Kyung Lee, Hongki Kim, Inho Song, Jiwon Lee, Saewon Kang, Hyunhyub Ko, Sang Kyu Kwak, Joon Hak Oh
In insect eyes, ommatidia with hierarchical structured cornea play a critical role in amplifying and transferring visual signals to the brain through optic nerves, enabling the perception of various visual signals. Here, inspired by the structure and functions of insect ommatidia, a flexible photoimaging device is reported that can simultaneously detect and record incoming photonic signals by vertically stacking an organic photodiode and resistive memory device. A single-layered, hierarchical multiple-patterned back reflector that can exhibit various plasmonic effects is incorporated into the organic photodiode...
February 8, 2018: Small
https://www.readbyqxmd.com/read/29417207/gradual-fibular-transfer-by-ilizarov-external-fixator-in-post-traumatic-and-post-infection-large-tibial-bone-defects
#13
Mohammed Anter Meselhy, Mohamed Salah Singer, Abdelsamie M Halawa, Gamal Ahmed Hosny, Adel H Adawy, Osama M Essawy
INTRODUCTION: Several reconstructive procedures have been used in management of large tibial bone defects including bone graft, bone transport (distraction osteogenesis) using various external fixators, and vascularized bone graft. Each of these procedures has its limitations and complications. The study describes gradual medial fibular transfer using Ilizarov external fixators in management of patients with large tibial defect, either following infection or trauma. PATIENTS AND METHODS: Between May 2011 and June 2013, 14 patients were prospectively included in the current study...
February 7, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29406305/phase-division-multiplexed-eit-for-enhanced-temporal-resolution
#14
Thomas Dowrick, David S Holder
Objective The most commonly used EIT paradigm (Time Division Multiplexing) limits the temporal resolution of impedance images due to the need to switch between injection electrodes. Advances have previously been made using Frequency Division Multiplexing (FDM) to increase temporal resolution, but in cases where a fixed range of frequencies is available, such as imaging fast neural activity, an upper limit is placed on the total number of simultaneous injections. The use of Phase Division Multiplexing (PDM) where multiple out of phase signals can be injected at each frequency is investigated to increase temporal resolution...
February 6, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29403542/advances-in-the-diagnosis-immunopathogenesis-and-therapies-of-igm-anti-mag-antibody-mediated-neuropathies
#15
REVIEW
Marinos C Dalakas
Polyneuropathy with immunoglobulin M (IgM) monoclonal gammopathy is the most common paraproteinemic neuropathy, comprising a clinicopathologically and immunologically distinct entity. The clinical spectrum spans from distal paresthesias and mild gait imbalance to more severe sensory ataxia, with falls and a varying degree of distal sensorimotor deficits. In approximately 75% of patients, the monoclonal IgM immunoreacts with myelin-associated glycoprotein (MAG) and sulfoglucuronyl glycosphingolipid (SGPG), or other peripheral nerve glycolipids that serve as antigens...
2018: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/29399464/split-pectoralis-major-transfer-for-chronic-medial-scapular-winging
#16
W Stephen Choate, Adam Kwapisz, John M Tokish
Scapular winging can be a significant source of chronic pain, weakness, and disability of the shoulder. Isolated serratus anterior palsy from long thoracic nerve injury, which is the most common cause of this condition, produces prominent winging and medial malpositioning of the inferior angle of the scapula. In the case of persistent symptoms despite conservative care, treatment options primarily include scapulothoracic fusion and pectoralis major transfer. Outcomes of scapulothoracic fusion are notable for a high complication rate and limited functional improvements...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29399426/intercostal-nerve-to-long-thoracic-nerve-transfer-for-the-treatment-of-winged-scapula-a-cadaveric-feasibility-study
#17
Robert G Louis, Joshua D Whitesides, Theofanis F Kollias, Joe Iwanaga, R Shane Tubbs, Marios Loukas
There are very few surgical options available for treating a patient with winged scapula caused by a long thoracic nerve (LTN) injury. Therefore, we devised a novel technique based on a cadaveric dissection whereby regional intercostal nerves (ICN) were harvested and transposed to the adjacent LTN in 10 embalmed cadavers (20 sides). The LTN was identified along the lateral border of the serratus anterior and ICNs were identified at the mid-axillary line inferior to the lower edge of the pectoralis major muscle...
November 30, 2017: Curēus
https://www.readbyqxmd.com/read/29398397/latissimus-dorsi-transfer-for-irreparable-subscapularis-tendon-tears
#18
Sang Won Mun, Ji Young Kim, Seung Hoon Yi, Chang Hee Baek
BACKGROUND: There are several tendon transfers for reconstruction of irreparable subscapularis tears. The latissimus dorsi (LD) could be used because its direction and function are similar to those of the subscapularis. We performed LD transfers for irreparable subscapularis tears and evaluated clinical outcomes. METHODS: The study enrolled 24 consecutive patients who underwent LD transfers. Clinical and functional outcomes were evaluated using the Constant score, American Shoulder and Elbow Surgeons score, pain visual analog scale, and range of shoulder motion preoperatively and at last follow-up...
February 2, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29396569/controlled-information-transfer-through-an-in-vivo-nervous-system
#19
Naveed A Abbasi, Dilan Lafci, Ozgur B Akan
The nervous system holds a central position among the major in-body networks. It comprises of cells known as neurons that are responsible to carry messages between different parts of the body and make decisions based on those messages. In this work, further to the extensive theoretical studies, we demonstrate the first controlled information transfer through an in vivo nervous system by modulating digital data from macro-scale devices onto the nervous system of common earthworms and conducting successful transmissions...
February 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29396151/-snapping-triceps-a-rare-and-misleading-condition-%C3%A2-a-clinical-case-report
#20
G Pfister, O Barbier, D Ollat
Snapping triceps corresponds to subluxation of the medial head of the triceps brachii over the medial epicondyle during active elbow flexion. It is a rare and misleading condition that is often associated with ulnar nerve instability. The latter can result in the snapping triceps being missed. Diagnosis requires a detailed clinical examination. Surgical treatment consists of anterior translocation of the nerve with an adipose flap to stabilize it and transfer of the distal attachment of the medial head of triceps brachii...
January 29, 2018: Hand Surgery and Rehabilitation
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