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Functional reconstruction

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https://www.readbyqxmd.com/read/28820844/a-new-method-for-reconstruction-of-vermilion-deficiency-in-cleft-lip-deformity-the-bi-winged-myomucosa-switch-flap
#1
KyungHoon Chung, Lun-Jou Lo
BACKGROUND: This study reviewed the method of using "Bi-winged myomucosa switch flap" for correction of secondary cleft lip deformity in patients with vermilion mucosa deficiency, lack of the central tubercle and disproportionate lip projection, obviating the conventional Abbé flap when the prolabium has acceptable philtrum and Cupid's bow definition. METHODS: The technique was applied to adult patients with secondary vermilion deficiency after primary bilateral cleft lip repair...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820842/-upper-extremity-innervation-patterns-and-clinical-implications-for-nerve-and-tendon-transfer
#2
Ellen Y Lee, Sandeep J Sebastin, Andre Cheah, V P Kumar, Aymeric Y T Lim
BACKGROUND: We previously studied the intramuscular innervation of 150 upper limb muscles and demonstrated that certain patterns of intramuscular innervation allowed muscles to be split into compartments with independent function. This study aims to determine the location, extra-muscular course, and number of motor nerve branches of upper limb peripheral nerves. We want to combine this information with our previous work to create a blueprint of upper limb neuromuscular anatomy that would be useful in reconstructive surgery...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820835/simultaneous-stiles-bunnell-tendon-transfer-enhances-intrinsic-function-of-the-second-toe-transplantations
#3
Yu-Te Lin, Charles Yuen Yung Loh, Shwu-Huei Lien, Chih-Hung Lin, Fu-Chan Wei
Claw finger is sequelae of fingers without intrinsic function. Claw toe deformity is common after toe transfers as simultaneous intrinsic reconstruction has yet to be reported in the literature. We present our experience of simultaneous tendon transfers during the second toe transplantation. Seven 2nd toe transfers were performed in 5 metacarpal-like and metacarpal hands. The Stiles-Bunnell tendon transfer was incorporated into toe transfers. Toe lumbrical tendons were repaired to the Flexor Digitorum Sublimis of the same recipient digit...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820834/super-thin-scip-flap-for-reconstruction-of-subungual-melanoma-aesthetic-functional-surgery
#4
Kyeong-Tae Lee, Bo Young Park, Eun-Ji Kim, Jung-Han Kim, Kee-Taek Jang, Sang-Hee Choi, Dong-Youn Lee, Goo-Hyun Mun
BACKGROUND: This study aimed to use a super-thin, free superficial circumflex iliac artery perforator (SCIP) flap in the functional surgery for treating subungual melanoma and to evaluate its outcomes. METHODS: Forty-one patients with primary subungual melanoma of ≤ 2-mm thickness who were treated with functional surgery were prospectively enrolled. Following oncologic resection, a thin SCIP flap was harvested along the trans-superficial fat layer and transferred to the defect with further thinning by primary defatting...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820547/incidence-and-clinical-impact-of-cerebral-lesions-after-the-mitraclip%C3%A3-%C3%A2-procedure
#5
Sebastian Barth, Karsten Hamm, Stefan Fodor, Wilko Reents, Sebastian Kerber, Philipp Halbfass, Martina B Hautmann, Bernhard Schieffer, Hassan Soda
BACKGROUND: Clinically silent brain injury detected with cerebral magnetic resonance imaging (MRI) is well known after various cardiovascular interventions. Thus far, only one study has examined the periprocedural risk of cerebral ischemic events in patients undergoing percutaneous mitral valve reconstruction. The study aim was to examine the incidence and clinical impact of cerebral embolic events in patients undergoing percutaneous mitral valve reconstruction using the MitraClip® system...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28820312/architecture-of-the-atg2b-wdr45-complex-and-an-aromatic-y-hf-motif-crucial-for-complex-formation
#6
Jing-Xiang Zheng, Yan Li, Yue-He Ding, Jun-Jie Liu, Mei-Jun Zhang, Meng-Qiu Dong, Hong-Wei Wang, Li Yu
PtdIns3P signaling is critical for dynamic membrane remodeling during autophagosome formation. Proteins in the Atg18/WIPI family are PtdIns3P-binding effectors which can form complexes with proteins in the Atg2 family, and both families are essential for macroautophagy/autophagy. However, little is known about the biophysical properties and biological functions of the Atg2-Atg18/WIPI complex as a whole. Here, we demonstrate that an ortholog of yeast Atg18, mammalian WDR45/WIPI4 has a stronger binding capacity for mammalian ATG2A or ATG2B than the other 3 WIPIs...
August 18, 2017: Autophagy
https://www.readbyqxmd.com/read/28820309/advanced-cone-beam-ct-venous-angiographic-imaging
#7
Visish M Srinivasan, Gouthami Chintalapani, Edward A M Duckworth, Peter Kan
OBJECTIVE The evaluation of the venous neurovasculature, especially the dural venous sinuses, is most often performed using MR or CT venography. For further assessment, diagnostic cerebral angiography may be performed. Three-dimensional rotational angiography (3D-RA) can be applied to the venous system, producing 3D rotational venography (3D-RV) and cross-sectional reconstructions, which function as an adjunct to traditional 2D digital subtraction angiography. METHODS After querying the database of Baylor St...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28819303/automated-segmentation-of-light-sheet-fluorescent-imaging-to-characterize-experimental-doxorubicin-induced-cardiac-injury-and-repair
#8
René R Sevag Packard, Kyung In Baek, Tyler Beebe, Nelson Jen, Yichen Ding, Feng Shi, Peng Fei, Bong Jin Kang, Po-Heng Chen, Jonathan Gau, Michael Chen, Jonathan Y Tang, Yu-Huan Shih, Yonghe Ding, Debiao Li, Xiaolei Xu, Tzung K Hsiai
This study sought to develop an automated segmentation approach based on histogram analysis of raw axial images acquired by light-sheet fluorescent imaging (LSFI) to establish rapid reconstruction of the 3-D zebrafish cardiac architecture in response to doxorubicin-induced injury and repair. Input images underwent a 4-step automated image segmentation process consisting of stationary noise removal, histogram equalization, adaptive thresholding, and image fusion followed by 3-D reconstruction. We applied this method to 3-month old zebrafish injected intraperitoneally with doxorubicin followed by LSFI at 3, 30, and 60 days post-injection...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819245/fourier-ptychographic-microscopy-with-sparse-representation
#9
Yongbing Zhang, Pengming Song, Jian Zhang, Qionghai Dai
Fourier ptychographic microscopy (FPM) is a novel computational microscopy technique that provides intensity images with both wide field-of-view and high-resolution. By combining ideas from synthetic aperture and phase retrieval, FPM iteratively stitches together a number of variably illuminated, low-resolution intensity images in Fourier space to reconstruct a high-resolution complex sample image. Although FPM is able to bypass the space-bandwidth product (SBP) limit of the optical system, it is vulnerable to the various capturing noises and the reconstruction is easy to trap into the local optimum...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819140/enhancement-of-perivascular-spaces-in-7%C3%A2-t-mr-image-using-haar-transform-of-non-local-cubes-and-block-matching-filtering
#10
Yingkun Hou, Sang Hyun Park, Qian Wang, Jun Zhang, Xiaopeng Zong, Weili Lin, Dinggang Shen
Perivascular spaces (PVSs) in brain have a close relationship with typical neurological diseases. The quantitative studies of PVSs are meaningful but usually difficult, due to their thin and weak signals and also background noise in the 7 T brain magnetic resonance images (MRI). To clearly distinguish the PVSs in the 7 T MRI, we propose a novel PVS enhancement method based on the Haar transform of non-local cubes. Specifically, we extract a certain number of cubes from a small neighbor to form a cube group, and then perform Haar transform on each cube group...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818535/use-of-the-ileum-for-ureteral-stricture-and-obstruction-in-bilateral-unilateral-and-single-kidney-cases
#11
Aram Kim, Wook Nam, Sang Hoon Song, In Gab Jeong, Bumsik Hong
Objectives To investigate the functional outcomes of ileal ureter replacement for complex ureteral loss, including bilateral and single ureter stricture, as a result of various etiologies. Methods In 2013-2016, 31 patients underwent ileal ureter replacement surgery. The data for their assessments included etiology, combined surgical procedures, ureteral replacement type, postoperative complications, and changes in renal function. Results The 31 study patients had a median age of 56.0 (range 18 to 65) years old and were followed for a median 23...
August 14, 2017: Urology
https://www.readbyqxmd.com/read/28817741/reconstruction-of-a-severely-atrophied-alveolar-ridge-by-computer-aided-gingival-simulation-and-3d-printed-surgical-guide-a-case-report
#12
In-Seok Song, Mi-Ran Lee, Jae-Jun Ryu, Ui-Lyong Lee
Dental implants positioned in severely atrophied anterior maxillae require esthetic or functional compromises. This case report describes the rehabilitation of a severely atrophied alveolar ridge with a three-dimensional (3D) computer-aided design/computer-aided manufacture (CAD/CAM) surgical guide. A 50-year-old woman had a severely atrophied anterior maxilla with unfavorably positioned dental implants. Functional and esthetic prosthodontic restoration was difficult to achieve. An anterior segmental osteotomy was planned to reposition the dental implants...
August 17, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28816718/double-composite-tissue-z-plasty-technique-for-anatomical-restoration-of-severe-nasal-deformity-in-secondary-unilateral-cleft-lip
#13
Jiao Wei, Tanja Herrler, Hua Xu, Qingfeng Li, Chuanchang Dai
BACKGROUND: Patients with secondary unilateral cleft lip are regularly affected by serious nasal deformities especially of the alar and nasal floor. A large number of techniques for correction have been published, but symmetrical restoration of severe nasal deformation is difficult to achieve. We propose an innovative approach for anatomical restoration for this entity of nasal deformities to achieve long-term symmetrical appearance and muscular function. METHODS: A total of 68 patients with severe nasal deformity due to secondary unilateral cleft lip underwent reconstructive surgery using a double composite tissue Z-plasty technique for anatomical restoration of cartilage, muscle, and soft tissue layers...
August 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28816664/gradient-based-tone-mapping-for-rate-distortion-optimized-backward-compatible-high-dynamic-range-compression
#14
David Gommelet, Aline Roumy, Christine Guillemot, Michael Ropert, Julien Le Le Tanou
This paper addresses the problem of designing a global tone mapping operator for rate distortion optimized backward compatible compression of HDR images. We address the problem of tone mapping design for two different use cases leading to two different minimization problems. The first problem considered is the minimization of the distortion on the reconstructed HDR signal under a rate constraint on the SDR layer. The second problem remains the same minimization with an additional constraint to preserve a good quality for the SDR signal...
August 14, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28816554/vaginal-axis-on-mri-after-unilateral-and-bilateral-sacral-hysteropexy-a-controlled-study
#15
Mehmet B Senturk, Cetin Kilicci, Sibel Aydin, Mesut Polat, Cigdem Abide Yayla, Ates Karateke
The objective of this study was to evaluate the vaginal position on magnetic resonance imaging (MRI) after bilateral abdominal sacral hysteropexy (BASH) and classical abdominal sacral hysteropexy (ASH) and to investigate which method keeps the vagina the most proximate to its original anatomical position. Ten patients, with 10 having BASH, 10 ASH and 10 being nulliparous, were compared. The angle between the vagina and the pubococcygeal plate, the angle between the upper and lower vaginal segments, the distance between the posterior fornix and the 2nd vertebra and the distances between the lateral fornices and spina ischiadica were measured on MRI...
August 17, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28815258/-anterolateral-thigh-flap-for-reconstruction-of-defects-after-en-bloc-resection-of-buccal-cancer-a-retrospective-study-of-23-cases
#16
Zhi-Yuan Deng, Xiao-Dan Fang, Hao Pan, Yan-Jia Hu, Zhan-Gui Tang
PURPOSE: This study was aimed to observe the effects of anterolateral thigh flap for reconstruction of tissue defects after en bloc resection of buccal cancer. METHODS: Twenty-three patients with soft tissue defects after en bloc resection of buccal cancer underwent simultaneous reconstruction with anterolateral thigh flap from May, 2013 to May, 2015 were observed. Anterolateral thigh flaps were designed and harvested in form of single or multiple islands to restore the defect in buccal region after surgery...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815257/-effect-of-functional-appliance-on-upper-airway-in-adolescent-patients-with-skeletal-class-ii-malocclusion
#17
Xuan Li, Hui-Ling Zhou, Xin-Tian Lou, Zheng Hu, Gang Shen
PURPOSE: To investigate the effect of functional appliance on upper airway in adolescent patients with skeletal Class II malocclusion based on cone-beam CT (CBCT). METHODS: Thirty adolescent patients (male:female=1:1) with skeletal Class II malocclusion and their 30 counterparts with skeletal Class I malocclusion were selected. Skeletal Class II malocclusion patients were treated with Activator for 12 months on average, meanwhile skeletal Class I malocclusion patients were treated with fixed appliance without extraction...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28815075/the-feeding-route-after-esophagectomy-a-review-of-literature
#18
REVIEW
Gijs H Berkelmans, Frans van Workum, Teus J Weijs, Grard A Nieuwenhuijzen, Jelle P Ruurda, Ewout A Kouwenhoven, Marc J van Det, Camiel Rosman, Richard van Hillegersberg, Misha D Luyer
Enhanced recovery programs effectively optimize perioperative care and reduce postoperative morbidity. In esophagectomy, several components of the ERAS program are successfully introduced. However, timing and type of postoperative feeding remain a matter of debate. Adequate nutritional support is essential in patients undergoing an esophagectomy. These patients often present with weight loss and their eating pattern is strongly altered by the procedure and reconstruction. Total parenteral nutrition (TPN) is associated with severe septic complications and enteral nutrition (EN) does not increase major complications...
July 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28814017/assessment-of-lower-arm-movements-using-one-inertial-sensor
#19
Fokke B van Meulen, Bert-Jan F van Beijnum, Jaap H Buurke, Peter H Veltink
Reduction of the number of sensors needed to evaluate arm movements, makes a system for the assessment of human body movements more suitable for clinical practice and daily life assessments. In this study, we propose an algorithm to reconstruct lower arm orientation, velocity and position, based on a sensing system which consists of only one inertial measurement unit (IMU) to the forearm. Lower arm movements were reconstructed using a single IMU and assuming that within a measurement there are moments without arm movements...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813899/the-effects-of-auditory-and-visual-cues-on-timing-synchronicity-for-robotic-rehabilitation
#20
Brittney A English, Ayanna M Howard
In this paper, we explore how the integration of auditory and visual cues can help teach the timing of motor skills for the purpose of motor function rehabilitation. We conducted a study using Amazon's Mechanical Turk in which 106 participants played a virtual therapy game requiring wrist movements. To validate that our results would translate to trends that could also be observed during robotic rehabilitation sessions, we recreated this experiment with 11 participants using a robotic wrist rehabilitation system as means to control the therapy game...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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