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https://www.readbyqxmd.com/read/29140901/-state-of-the-art-techniques-in-treating-peripheral-nerve-injury
#1
Carrie A Kubiak, Theodore A Kung, David L Brown, Paul S Cederna, Stephen W P Kemp
BACKGROUND -: Peripheral nerve injuries remain a major clinical concern as they often lead to chronic disability and significant health care expenditures. Despite advancements in microsurgical techniques to enhance nerve repair, biologic approaches are needed to augment nerve regeneration and improve functional outcomes after injury. METHODS -: Presented herein is a review of the current literature on state of the art techniques to enhance functional recovery for patients with nerve injury...
November 11, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29140459/rbm45-competes-with-hdac1-for-binding-to-fus-in-response-to-dna-damage
#2
Juanjuan Gong, Min Huang, Fengli Wang, Xiaolu Ma, Hongmei Liu, Yingfeng Tu, Lingyu Xing, Xuefei Zhu, Hui Zheng, Junjie Fang, Xiaoling Li, Qiaochu Wang, Jiuqiang Wang, Zhongshuai Sun, Xi Wang, Yun Wang, Caixia Guo, Tie-Shan Tang
DNA damage response (DDR) is essential for genome stability and human health. Recently, several RNA binding proteins (RBPs), including fused-in-sarcoma (FUS), have been found unexpectedly to modulate this process. The role of FUS in DDR is closely linked to the pathogenesis of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease that affects nerve cells in the brain and the spinal cord. Given that RBM45 is also an ALS-associated RBP, we wondered whether RBM45 plays any function during this process...
November 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29137943/cystoscopic-assisted-laparoscopic-excision-of-prostatic-utricle
#3
Ibrahim A Mostafa, Mark N Woodward, Mohamed S Shalaby
We present a video of our technique for resection of a large prostatic utricle (PU) in a patient who presented initially with disordered sexual development. His karyotype was 46XY, and phenotypically had penoscrotal hypospadias, bifid scrotum, and retractile right testis. An initial micturating cystourethrogram (MCUG) demonstrated the utricle but failed to cannulate the bladder. Being asymptomatic, we carried out staged repair of his hypospadias. Later, he started to have recurrent epididymo-orchitis with resistance to multiple antibiotics...
October 27, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29135610/meralgia-paresthetica-after-spine-surgery-on-the-jackson-table
#4
Nitin Agarwal, Jaydev B Mistry, Preeya V Khandge, David R Hansberry, Ira M Goldstein
Meralgia paresthetica is a non-life-threatening neurological disorder characterized by numbness, tingling, and burning pain over the anterolateral thigh due to impingement of the lateral femoral cutaneous nerve. This disorder has been seen in patients with diabetes mellitus and obesity, but has also been observed in patients after procedures such as posterior spine surgery, iliac crest bone grafts, lumbar disk surgery, hernia repair, appendectomies, and pelvic osteotomies that ultimately lead to compression or damage to the lateral femoral cutaneous nerve...
November 10, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/29134535/current-status-of-cardiovascular-surgery-in-japan-2013-and-2014-a%C3%A2-report-based-on-the-japan-cardiovascular-surgery-database-2-congenital-heart-surgery
#5
Yasutaka Hirata, Norimichi Hirahara, Arata Murakami, Noboru Motomura, Hiroaki Miyata, Shinichi Takamoto
OBJECTIVES: We analyzed the mortality and morbidity of congenital heart surgery in Japan using the Japan Cardiovascular Surgery Database (JCVSD). METHODS: Data regarding congenital heart surgery performed between January 2013 and December 2014 were obtained from JCVSD. The 20 most frequent procedures were selected and the mortality rates and major morbidities were analyzed. RESULTS: The mortality rates of atrial septal defect repair and ventricular septal defect repair were less than 1%, and the mortality rates of tetralogy of Fallot repair, complete atrioventricular septal defect repair, bidirectional Glenn, and total cavopulmonary connection were less than 2%...
November 13, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29134042/direct-nerve-sutures-in-extended-upper-obstetric-brachial-plexus-repair
#6
J Bahm, A Gkotsi, S Bouslama, W El-Kazzi, F Schuind
Background  In rare, selected cases of severe (extended) upper obstetric brachial plexus palsy (OBPP), after supraclavicular exposure and distal mobilization of the traumatized trunks and careful neuroma excision, we decided to perform direct nerve coaptation with tolerable tension and immobilized the affected arm positioned in adduction and 90-degree elbow flexion for three weeks. Objectives  We present our surgical technique and preliminary results in a prospective open patient series, including 22 patients (14 right and 8 left side affected) between 2009 and 2016, operated at a mean age of 8...
January 2017: Journal of Brachial Plexus and Peripheral Nerve Injury
https://www.readbyqxmd.com/read/29132477/elective-division-of-ilioinguinal-nerve-in-inguinal-hernioplasty-remedy-for-the-morbid-postoperative-inguinal-pain
#7
Muhammad Danish Muneeb, Mirza Aga Naushad Baig
OBJECTIVE: To compare the postoperative pain in inguinal hernioplasty, by preserving versus wide elective division of ilioinguinal nerve. STUDY DESIGN: Randomized controlled trial. PLACE AND DURATION OF STUDY: Surgical Department, Civil Hospital, Karachi, from January till August 2015. METHODOLOGY: All patients of either gender above 15 years of age, undergoing mesh repair for unilateral, reducible inguinal hernia, were included...
November 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29130658/-vein-nerve-conduit-supported-by-vascular-stent-in-the-regeneration-of-peripheral-nerve-in-rabbits
#8
Wei-Kun Meng, Zhong Huang, Zhen Tan, Liang Li, Qiang Guo, Zhen Zhang, Cheng-Xi Wu, Lei Liu, Fu-Guo Huang, Guang-Lin Wang
OBJECTIVE: To evaluate the effectiveness of autologous vein nerve conduit supported by vascular stent in repairing a 10 mm gap peroneal nerve in white New Zealand rabbits. METHODS: 30 New Zealand rabbits were randomly divided into three groups: autologous nerve group (group A),conventional autologous vein nerve conduit group (group B),autologous vein nerve conduit supported by vascular stent group (group C). 10 mm common peroneal nerve was cut off. In groups A,the peroneal nerve was turned 180 ° before suturing...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29130653/-advances-in-diagnosis-and-treatment-of-posterior-distal-injury-of-pelvic-fracture
#9
REVIEW
Zhen Tan, Guang-Lin Wang
Pelvic fracture is one of the common diseases of traumatic orthopedics. With the increase of accidents such as traffic accidents,high craters and crush injuries in China,the incidence of pelvic fractures is also increasing year by year. Since pelvic bones and the ligament structure are close to neurovascular,cavity organs and the urogenital structure,early diagnosis and treatment of pelvic fractures is essential for preventing early complications and late sequelae. The treatment of pelvic ring injury has been the focus of pelvic fracture treatment,which determines the outcome of treatment...
September 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/29128537/biomaterials-for-articular-cartilage-tissue-engineering-learning-from-biology
#10
REVIEW
A R Armiento, M J Stoddart, M Alini, D Eglin
Articular cartilage is commonly described as a tissue made of up to 80% water, devoid of blood vessels, nerves and lymphatics, and populated by only one cell type: at first glance, an easy tissue for clinicians to repair and for scientists to reproduce in a laboratory. Yet, chondral and osteochondral defects currently remain an open challenge in orthopedics and tissue engineering of the musculoskeletal system, without considering osteoarthritis. Why do we fail in repairing and regenerating articular cartilage? Behind its simple and homogenous appearance articular cartilage hides a heterogeneous composition, a high level of organisation and specific biomechanical properties that taken together make articular cartilage a unique material that we are not able yet to repair or reproduce with high fidelity...
November 8, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29126040/5-year-results-of-the-1-5cm-incision-achilles-tendon-repair
#11
Samuel K K Ling, Amanda Slocum, T H Lui
BACKGROUND: To study a hypothesis that the cost-effective 1.5cm medial incision Achilles tendon repair technique will provide good functional outcomes which are maintained for over 5 years. METHOD: Prospective study of 12 consecutive cases with a minimal 5-year follow-up were recruited from April 2008 to November 2010. Cases whom were mentally incompetent or those which required concomitant procedures were excluded. Outcomes measures included the numeric pain rating scale, motor power strength, range of motion, functional scoring using the AOFAS hindfoot score and patient's self-assessment using the Foot and Ankle Outcome Score (FAOS)...
June 16, 2017: Foot
https://www.readbyqxmd.com/read/29125428/schwann-cells-and-mesenchymal-stem-cells-in-laminin-or-fibronectin-aligned-matrices-and-regeneration-across-a-critical-size-defect-of-15-mm-in-the-rat-sciatic-nerve
#12
Francisco Gonzalez-Perez, Joaquim Hernández, Claudia Heimann, James B Phillips, Esther Udina, Xavier Navarro
OBJECTIVE Artificial nerve guides are being developed to substitute for autograft repair after peripheral nerve injuries. However, the use of conduits is limited by the length of the gap that needs to be bridged, with the success of regeneration highly compromised in long gaps. Addition of aligned proregenerative cells and extracellular matrix (ECM) components inside the conduit can be a good strategy to achieve artificial grafts that recreate the natural environment offered by a nerve graft. The purpose of this study was to functionalize chitosan devices with different cell types to support regeneration in limiting gaps in the rat peripheral nerve...
November 10, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29124786/schwann-cell-precursors-in-health-and-disease
#13
REVIEW
Jorge B Aquino, Romina Sierra
Schwann cell precursors (SCPs) are frequently regarded as neural crest-derived cells (NCDCs) found in contact with axons during nerve formation. Nevertheless, cells with SCPs properties can be found up to the adulthood. They are well characterized with regard to both gene expression profile and cellular behavior -for instance, proliferation, migratory capabilities and survival requirements-. They differ in origin regarding their anatomic location: even though most of them are derived from migratory NCCs, there is also contribution of the boundary cap neural crest cells (bNCCs) to the skin and other tissues...
November 10, 2017: Glia
https://www.readbyqxmd.com/read/29124342/connections-between-radial-and-ulnar-nerve-at-high-humeral-level-in-cadavers-incidence-topography-and-literature-review
#14
Konstantinos Natsis, A Giannakopoulou, M Piagkou, N Lazaridis, T Tegos, M R Colonna
PURPOSE: Although communications between branches and cords of the brachial plexus have been extensively published, there is a scarcity of reports concerning radial and ulnar nerve (RN-UN) communication in the arm. The current study aims to demonstrate the incidence, topography, and length of communicating branches between RN and UN. Any additional coexisted variations were also recorded. MATERIALS AND METHODS: Two hundred and sixty-six upper limbs collected from one hundred and thirty-three (81 males and 52 females) Greek cadavers were dissected...
November 9, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29123395/a-magnetically-responsive-nanocomposite-scaffold-combined-with-schwann-cells-promotes-sciatic-nerve-regeneration-upon-exposure-to-magnetic-field
#15
Zhongyang Liu, Shu Zhu, Liang Liu, Jun Ge, Liangliang Huang, Zhen Sun, Wen Zeng, Jinghui Huang, Zhuojing Luo
Peripheral nerve repair is still challenging for surgeons. Autologous nerve transplantation is the acknowledged therapy; however, its application is limited by the scarcity of available donor nerves, donor area morbidity, and neuroma formation. Biomaterials for engineering artificial nerves, particularly materials combined with supportive cells, display remarkable promising prospects. Schwann cells (SCs) are the absorbing seeding cells in peripheral nerve engineering repair; however, the attenuated biologic activity restricts their application...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29118955/effect-of-electrical-stimulation-on-motor-nerve-regeneration-in-sciatic-nerve-ligated-mice
#16
Farzaneh Samiee, Mohammad-Reza Zarrindast
The purpose of this study was to investigate the effect of electrical stimulation on sciatic nerve regeneration and functional recovery of target muscles. Mice were randomly divided into 3 groups: ligated without electrical stimulation, ligated with electrical stimulation and control (non-ligated). The unilateral peripheral mononeuropathy was produced on the right hind limb. Sciatic nerve was then electrically stimulated daily for a period of 2 weeks (duration: 0.2 msec, frequency: 100Hz, amplitude: 15mA). Evoked surface EMG was recorded from biceps femoris (BF) and gluteus maximus (GM) muscles on the 3rd, 7th, 10th and 14th day after sciatic nerve ligation...
June 27, 2017: European Journal of Translational Myology
https://www.readbyqxmd.com/read/29118440/native-joint-resident-mesenchymal-stem-cells-for-cartilage-repair-in-osteoarthritis
#17
REVIEW
Dennis McGonagle, Thomas G Baboolal, Elena Jones
The role of native (not culture-expanded) joint-resident mesenchymal stem cells (MSCs) in the repair of joint damage in osteoarthritis (OA) is poorly understood. MSCs differ from bone marrow-residing haematopoietic stem cells in that they are present in multiple niches in the joint, including subchondral bone, cartilage, synovial fluid, synovium and adipose tissue. Research in experimental models suggests that the migration of MSCs adjacent to the joint cavity is crucial for chonodrogenesis during embryogenesis, and also shows that synovium-derived MSCs might be the primary drivers of cartilage repair in adulthood...
November 9, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/29114339/lateral-antebrachial-cutaneous-nerve-as-a-donor-source-for-digital-nerve-grafting-a-concept-revisited
#18
Mehmet Bekir Unal, Kemal Gokkus, Evrim Sirin, Eren Cansü
Objective: The main objective of this study is to evaluate the availability of lateral antebrachial cutaneous nerve (LACN) autograft for acute or delayed repair of segmented digital nerve injuries. Patients and Methods: 13 digital nerve defects of 11 patients; treated with interposition of LACN graft that harvested from ipsilateral extremity were included in the study. Mean follow up period was 35, 7 months. The mean time from injury to grafting is 53, 3 days. The results of the mean 2PDT and SWMT values of injured /uninjured finger at the end of follow up period were evaluated with Paired T test...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29113703/similar-2-point-discrimination-and-stereognosia-but-better-locognosia-at-long-term-with-an-independent-home-based-sensory-reeducation-program-vs-no-reeducation-after-low-median-nerve-transection-and-repair
#19
Dimitrios K Antonopoulos, Andreas F Mavrogenis, Panayiotis D Megaloikonomos, Evanthia Mitsiokapa, George Georgoudis, Christos Th Vottis, George K Antonopoulos, Panayiotis J Papagelopoulos, Spyridon Pneumatikos, Sarantis G Spyridonos
STUDY DESIGN: Prospective controlled study. INTRODUCTION: Previous studies evaluated the effectiveness of sensory reeducation (SR) after peripheral nerve injury and repair. However, evidence for long-term clinical usefulness of SR is inconclusive. PURPOSE OF THE STUDY: The purpose of this study is to compare the sensory results of patients with low-median nerve complete transection and microsurgical repair, with and without SR at long term...
November 4, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29109908/extraocular-muscle-repair-and-regeneration
#20
Mayank Verma, Krysta Fitzpatrick, Linda K McLoon
Purpose of Review: The goal of this review is to summarize the unique regenerative milieu within mature mammalian extraocular muscles (EOMs). This will aid in understanding disease propensity for and sparing of EOMs in skeletal muscle diseases as well as the recalcitrance of the EOM to injury. Recent Findings: The EOMs continually remodel throughout life and contain an extremely enriched number of myogenic precursor cells that differ in number and functional characteristics from those in limb skeletal muscle...
September 2017: Current Ophthalmology Reports
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