检索结果-南通市图书馆

Accuracy of shoulder joint injections with ultrasound guidance:Confirmed by magnetic resonance arthrography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2022年第3期13卷 259-266页

作者： Kosuke Kuratani Makoto Tanaka Hiroto Hanai Kenji hayashida Department of Orthopedic Surgery Japan Community Healthcare Organization Osaka HospitalOsaka 553-0003Japan Center for Sports Medicine Daini Osaka Police HospitalOsaka 543-8922Japan Department of Orthopaedic Surgery Osaka University Graduate School of MedicineSuita 565-0871Japan Department of Orthopaedic Surgery Daini Osaka Police HospitalOsaka 543-8922Japan

BACKGROUND Intra-articular glenohumeral joint injections are essential procedures for treating various shoulder disorders. Fluoroscopy-guided injections have been extensively used;however, they pose a risk of radiation exposure and are expensive and timeconsuming. Recently, it has been suggested that ultrasound-guided injections are accurate and cost effective procedures.AIM To evaluate the accuracy of ultrasound-guided glenohumeral injections using a posterior approach that is confirmed using magnetic resonance arthrography(MRA).METHODS The study included 179 shoulders of patients with recurrent anterior instability(150 patients;103 and 76 right and left shoulders, respectively;160 males and 19 females;average age = 20.5 years;age range: 14-63 years) who underwent MRA for preoperative diagnosis. They were injected with 12 m L lidocaine(1%) using the ultrasound-guided posterior approach and then underwent magnetic resonance imaging. Two shoulder surgeons, except for the injector, evaluated the transverse relaxation(T2)-weighted images of axial planes and classified the intraarticular condition of injected contrast into three groups based on one of the three following scenarios: no leakage, injection into the glenohumeral joint without leakage;minor leakage, practical intra-articular injection with some leakage outside the posterior rotator cuffs;and major leakage, inaccurate injection with mass leakage without any contrast into the joint. The inter-rater reliability between two assessors was also evaluated by calculating Cohen’s kappa coefficient. The learning curve was assessed regarding the inaccurate injection rate by analyzing Spearman’s rank correlation coefficient.RESULTS Of the 179 injections, 163 shoulders(91.0%) had no leakage, 10 shoulders(5.6%) had minor leakage, and six shoulders(3.4%) had major leakage. In total, 173 shoulders(96.6%) were intraarticularly injected;thus, we could detect anterior labrum and capsular pathologies. Regarding the inter-rater reliability, the kappa coefficient was 0.925, in

关键词： Shoulder injections Glenohumeral injections Ultrasound guidance Magnetic resonance arthrography

Surgical treatment algorithms for post-burn contractures

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Burns & Trauma 2017年第1期5卷 1-8页

作者： Kenji hayashida Sadanori Akita Division of Plastic and Reconstructive Surgery Department of DermatologyFaculty of MedicineShimane University Hospital89-1Enya-choIzumoShimane693-0021Japan Department of Plastic Surgery Wound Repair andRegenerationFukuoka UniversityFukuokaJapan.

Burn contractures produce restrictions in motion and unacceptable aesthetic results, frequently with persistent wounds. Proper planning and tissue selection are essential to minimize donor site morbidity optimizing outcomes. The principle of burn reconstructive surgery requires that the defects after release should be replaced with donor tissues which have matching texture and color as well as enough pliability. Autologous skin grafting or flap surgeries meet these criteria to replace scar tissues and resurface the subsequent to post-released scar defects. Despite the benefits, the use of flaps is often limited in burn patients for many reasons. If a surgeon intends to release completely and reconstruct in one-stage operation, a large defect may result in large donor site morbidity, necessitating flap surgery including free flap surgery. A lot of different methods and procedures are available for resurfacing the defects, and these are reviewed. In this article, algorithms for the release of burn contractures and reconstructive methods are presented. These treatment algorithms should aid in achieving significant improvement in both joint motions and aesthetic deformities.

关键词： BurnContracture Algorithm Donor site morbidity Perforator flap Surgical treatment

Analysis of shopping behavior characteristics in the Keihanshin metropolitan area in Japan based on a person trip survey

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Geo-Spatial Information Science 2020年第4期23卷 305-315页

作者： Takashi Yamada Takumi hayashida Department of Human Factors Engineering and Environmental Design Faculty of Biology-Oriented Science and TechnologyKindai UniversityKinokawaWakayamaJapan

This study analyzed weekday shopping behavior from a home base to a destination using data from the 4th Keihanshin metropolitan area person trip survey.We first analyzed the relationships between occupation and transportation means,transportation means and travel time,and transportation means and duration of time at the destination.Results of a chi-square test,residual analysis,and correspondence analysis confirmed that employed persons tend to travel by cars while unemployed persons tend to travel by bus or walk.The relationship between travel time and duration of time at the destination was also revealed according to transportation means.Results of a cluster analysis then classified shopping behaviors to expose four patterns.Finally,multiple regression analyzed the degree to which certain variables were related to duration of time at the destination.Results confirmed a strong relationship between duration of time at the destination and travel time.The degree of this factor’s influence on other variables was also clarified.The value of these findings is that the relationship between travel time by means of transportation and the duration of time at the destination was clarified using statistical analysis.We then found a highly accurate equation that estimates the duration of time at a destination from the travel time.If the duration of time at a destination can be estimated,it may be possible to more accurately develop the structure of rest facilities,the number of parking lots,the degree of congestion,and so on,which can be associated with the customer’s usage behavior in a shopping site.This research in this paper contributes to the field of urban analysis and marketing by presenting a new effective method for person trip survey and analysis.

关键词： Person trip survey shopping behavior transportation means travel time duration of time at a destination

Advances in surgical applications of growth factors for wound healing

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Burns & Trauma 2019年第1期7卷 85-97页

作者： Sho Yamakawa Kenji hayashida Division of Plastic and Reconstructive Surgery Shimane University Faculty of Medicine89-1 Enya-choIzumoShimane 693-8501Japan

Growth factors have recently gained clinical importance for wound management.Application of recombinant growth factors has been shown to mimic cellmigration,proliferation,and differentiation in vivo,allowing for external modulation of the healing process.Perioperative drug delivery systems can enhance the biological activity of these growth factors,which have a very short in vivo half-life after topical administration.Although the basic mechanisms of these growth factors are well understood,most have yet to demonstrate a significant impact in animal studies or small-sized clinical trials.In this review,we emphasized currently approved growth factor therapies,including a sustained release system for growth factors,emerging therapies,and future research possibilities combined with surgical procedures.Approaches seeking to understand wound healing at a systemic level are currently ongoing.However,further research and consideration in surgery will be needed to provide definitive confirmation of the efficacy of growth factor therapies for intractable wounds.

关键词： Wound healing Growth factor Surgical application

Atomic force microscopy imaging of dialyzed single-walled carbon nanotubes dispersed with sodium dodecyl sulfate

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Smart and Nano Materials 2013年第2期4卷 119-127页

作者： Shigeyuki Hirayama Takuya hayashida Kazuo Umemura Biophysics Section Department of PhysicsFaculty of ScienceTokyo University of Science1-3 KagurazakaShinjukuTokyo 1628601Japan

The existence of excess sodium dodecyl sulfate(SDS)molecules in a single-walled carbon nanotube(SWNT)solution dispersed by hybridization with SDS leads to unstable atomic force microscopy(AFM)imaging.In this study,we demonstrate sequential dialysis against pure water in order to remove excess SDS molecules from an SDS-SWNT hybrid dispersion.A 1:102 volume ratio of SDS-SWNT dispersion to water in the dialysis was found to be effective in realizing stable AFM observations of the SDS-SWNT hybrids despite imperfect filtering of SDS via dialysis.On the other hand,the SDS-SWNT hybrids were stable even when this volume ratio was 1:106.Further,the SDS-SWNT hybrids were present in the solution even when the dialyzed samples were stored for 14 days.Our results reveal that dialysis under optimal conditions enables improved handling of SDS-SWNT hybrids,particularly for stable AFM observations.

关键词： carbon nanotube atomic force microscopy sodium dodecyl sulfate dialysis

The neck burn scar contracture:a concept of effective treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Burns & Trauma 2017年第3期5卷 140-147页

作者： Sadanori Akita Kenji hayashida Satoshi Takaki Yoshihisa Kawakami Takuto Oyama Hiroyuki Ohjimi Department of Plastic Surgery Wound Repair and Regeneration School of Medicine Fukuoka University 7-45-1 Nanakuma Jonan ku Fukuoka 8140180 Japan Section of Plastic Surgery School of Medicine Shimane University Shimane Japan Department of Plastic Surgery School of Medicine Fukuoka University Fukuoka Japan

A neck scar contracture can severely and negatively affect the function of mastication, phonic, or breathing and result in neck pain and issues with esthetics. The best way is of course to avoid such contracture by means of non-surgical treatment such as use of a growth factor. The basic fibroblastic growth factor is clinically well proven in decreasing scar formation and improving healing. There are numerous reconstructive methods for neck contracture, especially when the lesions are relatively limited in part of the neck. However, a very severe and full circumferential scar contracture requires extensive reconstruction. The thin groin flap is one of the answers and well matches with the tissue texture and maintains the flexibility. Even with extensive burns and delayed reconstructions due to resuscitation first, the groin area is well preserved and can be safely harvested by dual vasculature systems of the superficial circumflex iliac artery and superficial epigastric artery, which warrant more reliability compared to the perforator flaps in this area. More demanding and stringent forms of the neck burn scar contracture are the sequelae of radiation. A radiation burn or radiation injury can be progressing and hard to heal. Adipose-derived stem cells can reverse the scar contracture as the surrounding tissue is softened and can accelerate wound healing. In this review, different types of neck burn scar contracture and reconstructive methods are summarized, including innovative use of bFGF and ADSCs in the management of difficult wound healing and scar contracture.

关键词： Neck scar contracture Anatomical locations Prophylaxis Severe scar contracture Thin groin flap Radiation injury Adipose-derived stem cell

Dorsal hand reconstruction with radial artery perforator-based adipofascial flap

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Plastic and Aesthetic Research 2020年第5期7卷 15-25页

作者： Sho Yamakawa Kenji hayashida Division of Plastic and Reconstructive Surgery Shimane University HospitalIzumoShimane 693-8501Japan

Reconstruction of dorsal hand soft tissue defects after severe injury is challenging for surgeons.Depending on the degree of defect,extensor tendon reconstruction may also be necessary.Various reconstruction methods are commonly performed to cover dorsal hand defects,such as skin grafting and distant,free,or local flaps.Among them,free vascularized flap transplantation is an ideal procedure because the major vessels that feed the local flap may have been damaged,and the affected limb can be reconstructed using a flow-through method.Although free flap surgery has advanced,few surgeons can choose this option due to its technical difficulty and uncertainty.On the other hand,distant flaps have been commonly used for the reconstruction of dorsal hand defects,and local flaps,such as reverse forearm flaps and retrograde posterior interosseous flaps,do not require microvascular anastomosis.However,they have some problems;distant flaps require at least two surgeries,reverse forearm flaps sacrifice major vessels and leave a scar at the donor site,and retrograde posterior interosseous flaps require meticulous dissection of the vascular pedicle.The radial artery perforator-based adipofascial flap is a versatile flap that is safe and easy to elevate without sacrificing the radial artery.In addition,elevating it as an adipofascial flap enables surgeons to avoid an unacceptable donor scar.We present two cases,demonstrating the usefulness of this pedicled perforator flap.

关键词： Perforator dorsal hand reconstruction adipofascial flap hand replantation color Doppler ultrasonography

Physiological and Morphological Responses of Susceptible and Resistant Barleys to Bird Cherry-Oat Aphid Feeding

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

美国植物学期刊(英文) 2023年第10期14卷 1115-1129页

作者： Rafael hayashida John Scott Armstrong William Wyatt Hoback Dolores Mornhinweg Department of Entomology and Plant Pathology Oklahoma State University Stillwater OK USA United States Department of Agriculture Agricultural Research Service Peanut and Cereal Crops Research Unit Stillwater OK USA

The bird cherry-oat aphid (Rhopalosiphum padi [Linnaeus, 1758]) is considered a key pest of cereal crops worldwide, causing direct damage through sap feeding and by acting as a vector for viral diseases. Managing aphids is challenging because of their biology and potential resistance to insecticides. Developing resistant barley genotypes is a sustainable strategy for managing BCOA. In this study, we assessed responses of susceptible “Morex” and resistant “BCO R001” barley, Hordeum vulgare L. genotypes to different initial BCOA densities (0, 50, 100 or 200 aphids.plant-1). Physiological and morphological parameters were measured weekly for four weeks after infestation. Chlorophyll content, photosynthetic rate, plant aerial fresh and dry weight were greater for the resistant cultivar at lower aphid abundances and up to three weeks after infestation. Carbon assimilation curves (A/Ci) of infested “BCO R001” were similar to controls 15 days post infestation, differing from Morex. However, BCOA infestation of 50 aphid.plant-1 for two weeks negatively impacted the fitness of both genotypes. Initial resistance by BCO R001 to BCOA infestation can allow growers and natural enemies more time contributing to more effective and sustainable management of BCOA infestations.

关键词： Plant Tolerance Hemiptera Piercing-Sucking Injury Cereal Crops

Bone and soft tissue tumors presenting as sciatic notch dumbbell masses: A critical differential diagnosis of sciatica

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2016年第5期7卷 414-419页

作者： Yoshihiro Matsumoto Tomoya Matsunobu Katsumi Harimaya Kenichi Kawaguchi Mitsumasa hayashida Seiji Okada Toshio Doi Yukihide Iwamoto Department of Orthopaedic Surgery Graduate School of Medical Sciences Kyushu University Department of Orthopaedic Surgery Kyushu University Beppu Hospital

AIM To study the clinical findings and characteristic features in sciatic notch dumbbell tumors(SNDTs).METHODS We retrospectively reviewed the clinical outcomes and characteristic features of consecutive cases of SNDTs(n = 8). RESULTS Buttock masses occurred in three patients with SNDT(37.5%). Severe buttock tenderness and pain at rest were observed in seven patients with SNDTs(87.5%). Remarkably, none of the patients with SNDTs experienced back pain. Mean tumor size was 8.4 ± 2.0 cm(range, 3.9 to 10.6 cm) and part of the tumor mass was detected in 2 patients in the sagittal view of lumbar magnetic resonance imaging(MRI).CONCLUSION The clinical information regarding to SNDTs is scarce. The authors consider that above mentioned characteristic findings may facilitate the suspicion of pelvic pathology and a search for SNDT by MRI or computed tomography should be considered in patients presenting with sciatica without evidence of spinal diseases.

关键词： Sciatic notch Dumbbell masses Sciatica Differential diagnosis Bone and soft tissue tumor