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lateral recess

Khaled M Kebaish, Benjamin D Elder, Sheng-Fu L Lo, Timothy F Witham
STUDY DESIGN: Technical report and case illustration. OBJECTIVE: To review the rationale and steps for a sublaminar decompression in the setting of adult deformity surgery and in degenerative spondylosis. SUMMARY OF BACKGROUND DATA: Several variations of lumbar laminotomy and posterior decompressions have been reported, although these are primarily in the setting of isolated lumbar stenosis, and often focus on treatment of central stenosis...
October 21, 2016: Clinical Spine Surgery
Valeria Carolina Alvarez, Sini Tellervo Penttilä, Valeria Luján Salutto, Bjarne Udd, Claudio Gabriel Mazia
Epidermolysis bullosa simplex with muscular dystrophy (EBS-MD; OMIM #226670) is an autosomal recessive disorder characterized by neonatal blistering and later-onset muscle weakness.
December 2016: Neurology. Genetics
Avadhesh Kumar, Shalini Kaushal, Neelu Verma, Deepti Chandra
The treatment of gingival recession defects is indicated for esthetic and functional reasons to reduce root sensitivity, to remove muscle pull, to create or augment keratinized tissue, and to prevent disease progression. The presence of sufficient amount of periosteum adjacent to gingival recession defects makes it a suitable graft. The adult human periosteum is a highly vascular connective tissue with immense regenerative potential. It contains fibroblasts, osteogenic progenitor cells, and stem cells as a result of which it has the ability to differentiate into fibroblast, osteoblast, chondrocytes, adipocytes, and skeletal myocytes...
September 2016: Journal of Oral Biology and Craniofacial Research
Arun Gopi, Placid Sebastian, C D Ramakrishna
Isolated ventricular noncompaction (IVNC) is an unclassified cardiomyopathy characterized by prominent intraventricular trabeculations separated by deep intertrabecular recesses. Although microvascular dysfunction is known, myocardial infarction is rare and usually seen as a consequence of coincidental coronary artery disease. We report the case of a 19-year-old male patient who presented to us with symptoms and signs of heart failure. Echocardiography revealed IVNC with severe left ventricular dysfunction...
September 2016: Indian Heart Journal
Jia Ke, Shao-Xing Zhang, Lei Hu, Chang-Sheng Li, Yun-Feng Zhu, Shi-Long Sun, Li-Feng Wang, Fu-Rong Ma
BACKGROUND: A single drilled tunnel from the lateral mastoid cortex to the cochlea via the facial recess is essential for minimally invasive cochlear implant surgery. This study aimed to explore the safety profile of this kind of new image-guided and bi-planar device-assisted surgery procedure in vitro. METHODS: Image-guided minimally invasive cochlear implantations were performed on eight cadaveric temporal bone specimens. The main procedures were: (1) temporal bone specimens were prepared for surgery and fiducial markers were registered...
2016: Chinese Medical Journal
Tao Xie, Wei Sun, Xiaobiao Zhang, Tengfei Liu, Hailing Ding, Fan Hu, Yong Yu, Ye Gu
BACKGROUND: In this study, we investigated the value of three-dimensional (3D) fast-imaging employing steady-state acquisition (FIESTA) magnetic resonance imaging (MRI) in detecting non-iatrogenic cerebrospinal fluid (CSF) rhinorrhoea and compared it with regular MRI and 3D magnetisation prepared rapid acquisition gradient echo (MPRAGE) MRI sequences, as well as high-resolution computed tomography (HRCT) imaging. We also present the endoscopic experiences of such cases. METHOD: From June 2011 to Feb 2016, 17 patients with non-iatrogenic cerebrospinal fluid rhinorrhoea were included...
October 13, 2016: Acta Neurochirurgica
Meike J Wittmann, Hanna Stuis, Dirk Metzler
1.It is now widely accepted that genetic processes such as inbreeding depression and loss of genetic variation can increase the extinction risk of small populations. However, it is generally unclear whether extinction risk from genetic causes gradually increases with decreasing population size or whether there is a sharp transition around a specific threshold population size. In the ecological literature, such threshold phenomena are called "strong Allee effects" and they can arise for example from mate limitation in small populations...
October 12, 2016: Journal of Animal Ecology
Daniele Starnoni, Roy Thomas Daniel, Mercy George, Mahmoud Messerer
BACKGROUND: Spontaneous meningoencephaloceles of the lateral sphenoid sinus are rare entities and their peculiar location represent a surgical challenge due to the importance of a wide exposure and skull base reconstruction. They are thought to arise from congenital base defect of the lateral sphenoid or in some cases have been postulated to represent a rare manifestation of altered CSF dynamics. We report the first case in literature of a Chiari malformation type I and a lateral sphenoid encephaloceles revising the theoretical etiology and surgical technique of endoscopic repair...
October 8, 2016: World Neurosurgery
Francesco Zuffetti, Marco Esposito, Fabio Galli, Matteo Capelli, Giovanni Grandi, Tiziano Testori
PURPOSE: To compare peri-implant bone and soft-tissue levels of immediate non-occlusally loaded versus non-submerged early loaded implants in partially edentulous patients 10 years after loading. MATERIALS AND METHODS: Fifty-two patients were randomised in five Italian private practices: 25 in the immediately loaded group and 27 in the early loaded group. To be immediately loaded, single implants had to be inserted with a torque of at least 30 Ncm, and splinted implants with a torque of at least 20 Ncm...
2016: European Journal of Oral Implantology
Yaxia Zhang, Michael Joyce, Jean Schils, Thomas W Bauer
Sarcoidosis is a systemic inflammatory disorder characterized by non-caseating granulomas, predominantly involving lung, mediastinal lymph nodes and other organs. Synovium involvement is infrequent, and as far as we know, involvement of a periprosthetic membrane has not been reported in the English literature. Intra-articular diffuse tenosynovial giant cell tumor ("conventional diffuse pigmented villonodular synovitis") is an uncommon, locally aggressive neoplasm with few previous case reports in which it arose in periprosthetic tissues after knee arthroplasty...
October 7, 2016: Skeletal Radiology
Pascal Molteni, Thomas Hügle, Maria Hügle, Corina Nüesch, Annegret Mündermann
Walking with crutches is an effective way of reducing the load on the lower extremity and is often indicated after injury or surgery. However, walking with forearm crutches with conventional cuffs can trigger symptoms including tenosynovitis in the biceps tendon, ulnar neuropraxia at the wrist, pain or skin hematoma. The purpose of this study was to test the hypothesis that a crutch cuff design with an ulnar recess reduces ulnar pressure during walking with forearm crutches. The pressure distribution between the forearm and crutch cuff was measured in 15 healthy participants for crutch walking with conventional and novel cuffs, respectively...
October 7, 2016: Assistive Technology: the Official Journal of RESNA
Ahmed Omran, Fatthi Abdel Baki, Ahmed Amin
OBJECTIVE: To assess the effectiveness of glass ionomer bone cement (GIBC) in lateral attic wall reconstruction after primary acquired attic cholesteatoma surgery. MATERIALS AND METHODS: This prospective study was conducted on twenty children collected from the ENT outpatient clinics of a secondary and tertiary hospital. All patients presented with chronic suppurative otitis media with cholesteatoma of the primary acquired attic type. All patients underwent intact canal wall mastoidectomy (ICWM) with a transcanal atticotomy to address primary cholesteatoma involving the attic and the supratubal recess...
August 2016: Journal of International Advanced Otology
Kaiyu Fu, Donghoon Han, Chaoxiong Ma, Paul W Bohn
Electrochemical reactions at nanoscale structures possess unique characteristics, e.g. fast mass transport, high signal-to-noise ratio at low concentration, and insignificant ohmic losses even at low electrolyte concentrations. These properties motivate the fabrication of high density, laterally ordered arrays of nanopores, embedding vertically stacked metal-insulator-metal electrode structures and exhibiting precisely controlled pore size and interpore spacing for use in redox cycling. These nanoscale recessed ring-disk electrode (RRDE) arrays exhibit current amplification factors, AFRC, as large as 55-fold with Ru(NH3)6(2/3+), indicative of capture efficiencies at the top and bottom electrodes, Φt,b, exceeding 99%...
September 22, 2016: Faraday Discussions
Diva Maria Borges-Nojosa, Ulisses Caramaschi, Miguel Trefaut Rodrigues
A new species of Placosoma Tschudi, 1847, until now restricted to the Atlantic Forest areas of southeastern Brazil is        described based on specimens obtained about 1700 km north to the current distribution of the genus. Placosoma limaverdorum spec. nov. is apparently endemic to three "brejos-de-altitude", relictual forest mountains surrounded by dry Caatingas, in the State of Ceará, northeastern Brazil. It differs from their congeners by the presence of an undivided transparent palpebral disk, a divided nasal scale with a central nostril, a deep tympanic recess, a distinctive and thin light vertebral stripe on the dorsal surface of the head, body and tail, femoral pores present only in males (21-26), preanal pores absent and additionally by having 21-24 rows of transverse ventral scales, 34-38 dorsals, dorsal, lateral and ventral scales smooth, dorsal scales quadrangular, longer than wide, except in the neck region, where they are wider than long...
September 19, 2016: Zootaxa
Yumi Ueki, Grisela Ramirez, Ernesto Salcedo, Maureen E Stabio, Frances Lefcort
Familial dysautonomia (FD) is an autosomal recessive congenital neuropathy that is caused by a mutation in the gene for inhibitor of kappa B kinase complex-associated protein (IKBKAP). Although FD patients suffer from multiple neuropathies, a major debilitation that affects their quality of life is progressive blindness. To determine the requirement for Ikbkap in the developing and adult retina, we generated Ikbkap conditional knockout (CKO) mice using a TUBA1a promoter-Cre (Tα1-Cre). In the retina, Tα1-Cre expression is detected predominantly in retinal ganglion cells (RGCs)...
September 2016: ENeuro
Kotaro Horiguchi, Hideji Yako, Saishu Yoshida, Ken Fujiwara, Takehiro Tsukada, Naoko Kanno, Hiroki Ueharu, Hiroto Nishihara, Takako Kato, Takashi Yashiro, Yukio Kato
The anterior and intermediate lobes of the pituitary gland develop through invagination of the oral ectoderm and as they are endocrine tissues, they participate in the maintenance of vital functions via the synthesis and secretion of numerous hormones. We recently observed that several extrapituitary cells invade the anterior lobe of the developing pituitary gland. This raised the question of the origin(s) of these S100β-positive cells, which are not classic endocrine cells but instead comprise a heterogeneous cell population with plural roles, especially as stem/progenitor cells...
2016: PloS One
R Obuchowicz, M Bonczar
Lateral elbow pain is often attributed to degenerative or posttraumatic impairment of the common extensor tendon. Ultrasonography assesses the soft tissue structures of the lateral elbow, allowing the differentiation between various underlying processes, including angiofibroblastic degeneration, hyaline degeneration, and inflammation, and exclusion of other possible causes of pain such as posterior interosseous and lateral antebrachial nerve compression. Furthermore, the real-time imaging nature of ultrasonography enables the detection of impingement of the lateral synovial fold, degenerative changes in the elbow recess, and elbow posterolateral instability during dynamic maneuvers...
May 2016: Ultrasound Int Open
Yoshihiro Takasugi, Koichi Futagawa, Tatsuo Konishi, Daisuke Morimoto, Takahiko Okuda
PURPOSE: Most reported cases of nasopharyngeal laceration following impingement during nasotracheal intubation involved tube insertion via the right nostril. We postulated that recesses on the posterior wall of the nasopharynx might be associated with tube impingement. Using multiplanar imaging and clinical statistics, we evaluated whether anatomical variations in the recesses are related to successful intubation via the right nostril. METHODS: Using multiplanar computed tomography (CT) images of 97 patients, we investigated the locations of recesses relative to the mid-sagittal plane, nasal floor plane and posterior end of the nasal septum, and their shapes...
September 27, 2016: Journal of Anesthesia
Ingrid Vasconcellos Faber, Joana Rosa Marques Prota, Alberto Rolim Muro Martinez, Anamarli Nucci, Iscia Lopes-Cendes, Marcondes Cavalcante França Júnior
INTRODUCTION: Chediak-Higashi syndrome (CHS) is a very rare autosomal recessive disorder (gene CHS1/LYST) characterized by partial albinism, recurrent infections, and easy bruising. Survivors develop a constellation of slowly progressive neurological manifestations. METHODS: We describe clinical, laboratory, electrophysiological, and genetic findings of a patient who developed an immune-mediated demyelinating neuropathy as the main clinical feature of CHS. RESULTS: The patient presented with subacute flaccid paraparesis, absent reflexes, and reduced vibration sense...
September 26, 2016: Muscle & Nerve
Tiana Y Clark, Robert A Clark
Orbital connective tissue normally loses strength and rigidity during aging. The lateral rectus pulley that surrounds and directs the lateral rectus path has the flimsiest support and can sag too far inferiorly, resulting in significantly reduced abducting force and secondary esotropia. This displacement is worsened by a weakened lateral rectus-superior rectus band from high myopia. Augmented medial rectus recessions can correct the esotropia, but long-term results may be less predictable because the underlying anatomic abnormality, the sagging lateral rectus muscle, has not been addressed...
September 22, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
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