Curative effect assessment of bandage contact lens in neurogenic keratitis

AIM: To observe the curative effect of bandage contact lens in neurogenic keratitis.METHODS: Twenty cases of neurogenic keratitis were studied at the Department of Ophthalmology, the First Affiliated Hospital of China Medical University, between October 2012 and June 2013. These included 13 males and 7 females, aged from 35 to 88 y. Patients were voluntarily divided into an experimental group(lens wearing group, n =10) and control group(drug therapy,n =10). In experimental group patients wore silicone hydrogel bandage soft contact lens. Both groups used the following eyedrops: 0.5% levofloxacin TID; 0.5%Sodium carboxymethyl cellulose QID; fibroblast growth factor BID; ganciclovir BID [cases complicated with herpes simplex virus(HSV)]; compound tropicamide BID(cases concurrent hypopyon). The healing time of corneal ulcer and complication rates were observed in the two groups.RESULTS: The healing time of corneal ulcer in the experimental group was 10.80±4.44 d versus 46.70±13.88 d in the control group(P 【0.05). No complications occurred in the experimental group, except for the lens falling off twice in one case, the patient recovered eight days after rewearing the lens. While in the control group, all cases vascularized, 2 cases were complicated with descemetocele that recovered with amniotic membrane transplantation and 1 case was complicated with corneal perforation that recovered by autologous conjunctival flap covering.CONCLUSION: Bandage contact lens is a safe and effective method of treating neurogenic keratitis andsignificantly shortened the healing time of corneal ulcer.

Clinic study on silicone hydrogel contact lenses used as bandage contact lenses after LASEK surgery

AIM: To compare the clinical performance of two types of silicon hydrogel contact lenses used as bandage lenses after LASEK surgery. METHODS: A prospective, double-masked study was conducted on 42 eyes of 21 patients who received binocular LASEK surgeries. The interocular difference in spherical equivalent power was less than -1.50D. Patients were randomly assigned to wear Galyfilcon A (Lens A) bandage contact lens in one eye and Balafilcon A (Lens B) in the fellow eye after the surgery. The responses to a subjective questionnaire on comfort of wearing, corneal epithelial status, conjunctival hyperemia, limbal neovascularization, lens fitting and contact lens debris were assessed 1 and 5 days postoperatively. Corneal endothelium was assessed before and 5 days after the surgery upon bandage lens removal. RESULTS: There was no difference between the two groups in terms of conjunctival hyperemia, limbal neovascularization, contact lens fitting, corneal epithelial status, corneal endothelium cell density (CD) and endothelium cell size (CS) at any postoperative visit. Complaints of discomfort, including foreign body sensation, pain and intolerance were statistically more among Lens B wearers at any postoperative visit (P < 0.05). Lens B appeared to attract much more debris than Lens A at the 5-day post-operative follow-up visit (P < 0.01). CONCLUSION: The two types of silicon hydrogel lenses investigated in this study demonstrated similar clinical performance in terms of corneal responses and lens fitting. However, Lens A showed a better performance in terms of comfort of wearing and deposit resistance.

Evaluation of the safety and efficacy of therapeutic bandage contact lenses on post-cataract surgery patients

AIM： To evaluate the safety of therapeutic bandage contact lens for post-cataract surgery patients and to illustrate its efficacy on post-operative comfort and tear-film stability. METHODS： A total of 40 participants were recruited and randomly divided into two groups. Group one was instructed to wear bandage contact lenses for a week and use antibiotic eye drops for a month since the first day after surgery. Group two received sub-conjunctival injection of tobramycin and was asked to wear eye pads on the first day after surgery and then were instructed to use antibiotic eye drops as the first group did. Ocular surface disease index（OSDI） questionnaire, slit-lamp microscope examination of tear break-up time（TBUT）, corneal fluorescein score（CFS）, tear meniscus height（TMH） together with anterior segment optical coherence tomography（AS-OCT） and corneal topography were evaluated preoperatively and postoperatively. RESULTS： The subjective feeling（P=0.004）, TBUT（P〈0.001） and TMH（P=0.02） post-surgery had improved in patients who used bandage contact lenses compared with those who did not at 1wk post-surgery. Until three month postoperatively, the comfort degree（P=0.004） and TMH（P=0.01） of group two were still worse than group one. Moreover, TBUT（P〈0.001） and CFS（P=0.004） of the group with eye pads got worse than the results before, whereas the group with bandage contact lenses recovered to normal. None of these patients had infections or other complications. CONCLUSION： Wearing therapeutic bandage contact lens after cataract surgery, compared with traditional eye-pads, is a safe method to improve tear-film stability and reduce post-operative discomfort without hindering corneal incision recovery.

Improved Polyurethane-coated Orthopedic Casting Bandage for Medical Application

A new improved polyester casting bandage, which comprises a knitted polyester substrate coated with polyurethane prepolymer, was developed. The appropriate polyester knitted substrate was selected firstly; the optimal ingredient for the synthesis of coating resin (polyurethane prepolymer) was determined then through a series of trial experiments and factorial experiments; the properties of bandage were checked at last. The results of the experiment indicate that most of the properties of the new product could exceed or approximate to the level of similar product of other countries.

PRELIMINARY REPORT ON THE MECHANISM OF HEAT AND BANDAGE TREATMENT FOR LYMPHEDEMA

Objective Study the mechanism of heat and bandage treatment for lymphedema. Methods Using biochemical assessment technique and histological examination, a comparative study of the cutaneous tissues in 15 patients with lymphedema of the lower extremity before and afer the heating and bandage theropy. ResuIts 1. The content of hydroxyproline in the affected skin was decreased. 2. The thickness of skin was decreased and the water content was reduced. 3. The microcirculation of local tissues was enhanced. 4. The activity of the macrophages was increased. Conclusion The mechanism of heat and bandage therapy might be as follows: 1. improving the local microcirculation and enhancing the resorption of tissue fluid and protein, 2. increasing the activity of the macrophages, and diminishing librosis of the allcted tisues.

Geometry of the bandaging procedure and its application while wrapping bandages for treatment of leg ulcers

Appropriate compression bandaging is important for compression therapeutic medical diseases. The high compression approach employed for treating venous leg ulcers should be used correctly so that sufficient (but not excessive) pressure is applied. Bandages used to treat venous disease by compression should achieve and sustain effective levels and gradients of pressure and minimize the risk of pressure trauma. To maintain graduated compression on the limb, the bandage needs to be applied at the same tension for each layer from the ankle to the knee. In this paper, the geometry for various bandaging procedures is used to wrap each layer of bandage by marking the relaxed length of the bandage. The relaxed length is calculated depending on the stretch%, the average circumference of the limb to which it is to be applied and the bandaging technique to be used. This paper aims at developing a scientific approach while applying the bandage to reduce the inter operator variability in applying the same tension on each successive layer of bandage.

Walking through the biomimetic bandages inspired by Gecko's feet

Introduction We all very accustomed to the emergency room of a crit-ical care unit,which is indeed captivated with accidental injury and internal bleeding,making the duo one of the highest causes of mortality to date.

Study on the correlation between bandage bandage and pressure therapy of lymphedema

To explore the effects of bandage technology and pressure therapy in breast cancer with lymphedema.Methods A total of 91 patients,with breast cancer-related lymphedema and hospitalized in a third-class hospital in Jiangsu Province from May to December,2018,were selected and sequenced in class“ABC”in the order of entry.The patients in class“A”were enrolled in“8”shaped bandaging group.The patients in class“B”were enrolled in“5”spiral bandaging group.The patients in class“C”were enrolled in combined bandage group.The primary outcome was the degree of limb swelling used by multiple-frequency bioelectrical impedance analysis.Secondary outcomes were the amount of bandage losses,counting 24-hour bandage loose occurrences and patients satisfaction.All outcomes were evaluated both before and after treatment.Results After treatment,there was a significant difference in the regression of limb swelling in all three groups(P<0.05).However,the largest amplitude of regression was observed in combined bandage group(limb circumference ratio:53%and tissue water ratio:68%).Although“8”bandaging group had large material,bandage cost and minimum comfort,the bandage has good stability and no case of 24-hour bandage loose occurrences was found in this group.The“5”partial binding group had an advantage in the amount of bandage losses and comfort level,but among which 3 patients had the phenomenon of loose bandage at the joint.The combined bandage group had the best therapeutic effect in limb swelling and patients satisfaction(P<0.05).Conclusion The combined bandage group significantly decreased the degree of limb swelling and 24-hour bandage loose occurrences.Importantly,this treatment improved the degree of patients’satisfaction.The treatment of“8”shaped bandaging combined with spiral bandaging is worthy of clinical promotion.

Comparison of efficacy of two different silicone hydrogel bandage contact lenses after T-PRK

AIM:To compare the efficacy between two different silicone hydrogel bandage contact lenses after transepithelial photorefractive keratectomy(T-PRK).METHODS:In this randomized controlled trial,a total of 89 patients(178 eyes) who underwent T-PRK at the Qingdao Eye Hospital from October to December 2019 were selected.One random eye wore a Senofilcon A bandage contact lens after surgery,and the other eye a Balafilcon A bandage contact lens.Pain scores,uncorrected visual acuity(UCVA),spherical equivalent(SE),corneal epithelial healing status,epithelial thickness,bandage lenses deposits,lenses movement,and ocular surface conditions were measured and compared.RESULTS:There were no differences between the two groups in UCVA,SE,corneal epithelial healing status,corneal epithelial thickness,tear river heights and tear film rupture time at each follow-up visit.However,postoperative pain scores in the Senofilcon A group were significantly lower than those of the Balafilcon A group(F_(intergroups)=67.833,P<0.001;F_(time)=383.773,P<0.001;F_(interaction)=57.344,P<0.001).The duration of pain in eyes in the Senofilcon A group was shorter than that of the Balafilcon A group(t=-3.326,P=0.001).The surface deposition scores and movement scores of Senofilcon A bandage lenses on the first and fourth days after surgery were lower than those of Balafilcon A bandage lenses(Z=-5.385,-6.782,P<0.001;Z=-8.336,-8.906,P<0.001).CONCLUSION:Both Senofilcon A and Balafilcon A bandage lenses have good efficacy after T-PRK.Senofilcon A lenses are associated with less pain and more comfort compared to Balafilcon A.

Effect comparison of knee-chest elastic bandage fixation and Pavlik harness fixation on the treatment of femoral shaft fractures in newborns

Objective:To study and analyze the clinical efficacy of fixation of the elastic bandage of immobilization of knee-chest position and Pavlik harness fixation in the treatment of neonatal femoral shaft fractures.Methods:A retrospective analysis was conducted from May 2010 to March 2017 with a total of 37 cases of femoral shaft fracture of the newborn.Among them,17 newborns with femur shaft fracture were treated using this fixation of the elastic bandage of immobilization of knee-chest position,and 20 newborns were treated utilizing Pavlik harness fixation.All patients were followed up for 24 months.It was compared between the two groups in length of hospitalization,hospitalization cost,the incidence of complications,fracture healing rate and post-operation angulation,rotation and shortening indexes.Results:Compared with the Pavlik harness fixation group,the hospitalization cost of knee-chest elastic bandage fixation group was lower(P<0.05),the difference was statistically significant.There is no significant difference between the two groups in terms of length of hospitalization,complications and fracture healing.The two groups of treatment methods compared in angle formation,rotation and shortness(P>0.05),with no statistical difference.Conclusions:Both knee-chest elastic bandage fixation and Pavlik harness fixation are effective methods for the treatment of neonatal femoral shaft fractures.But the former has lower cost and simpler operation,which is worthy of clinical application.

踇外翻微创截骨术后绷带和Herbert螺钉固定截骨端生物力学的三维有限元分析

目的:比较踇趾外翻微创截骨术后截骨端用绷带和Herbert螺钉两种方式的固定强度和稳定性。方法:招募1位中度踇外翻女性病人,对其左足行CT扫描获得数据,导入三维有限元软件,初步建立踇外翻三维有限元模型,模拟微创截骨术后采取绷带固定和Herbert螺钉固定,分析足部跖屈位截骨端最大位移及应力分布情况,Herbert螺钉的应力分布情况。结果:绷带固定截骨端最大等效应力为7.8615 MPa,Herbert螺钉固定截骨端最大等效应力为8.3156 MPa。绷带固定截骨端总位移为0.268960 mm,Herbert螺钉固定截骨端总位移为0.029195 mm。螺钉在截骨端附近的最大应力为46.404 MPa。结论:在截骨端固定强度和稳定性上,Herbert螺钉固定优于绷带固定,但绷带固定微动范围未超过有害距离,对断端愈合无不利影响;Herbert螺钉本身在截断近端处应力较高,这种应力集中对早期维持骨折断端的稳定有着非常重要的作用。

新型加压绷带在腰椎术后脑脊液漏病人中的临床应用

目的探讨自行设计的新型加压绷带在腰椎术后脑脊液漏病人中的临床应用。方法选取2021年4月至2022年4月我科腰椎术后脑脊液漏病人42例,应用随机数字表法分为观察组和对照组,每组21例。观察组脑脊液漏病人使用自行设计的新型加压绷带加压包扎治疗,对照组使用普通腹带加压包扎治疗。观察两组病人加压包扎护理耗时、引流管留置时间和加压包扎处的皮肤情况。结果观察组加压包扎护理耗时和引流管留置时间均较对照组明显缩短[(1.12±0.24)分vs.(6.74±1.43)分;(5.09±1.12)d vs.(7.18±1.16)d],差异均有统计学意义(P<0.001)。观察组加压包扎处皮肤无异常;对照组发生皮肤异常9例(42.86%),其中红肿4例、水疱1例、破皮4例。结论新型加压绷带有助于提高加压包扎的护理效果,缩短加压包扎护理耗时和引流管留置的时间,明显改善病人加压包扎处的皮肤状况,极大地降低了护理不良事件的发生,促进了病人术后的康复。

乳腺癌改良根治术后皮瓣坏死的危险因素分析

目的分析探讨乳腺癌改良根治术后皮瓣坏死的危险因素。方法选取2021年1月至2022年2月河南科技大学第一附属医院收治的92例拟行乳腺癌改良根治术治疗的乳腺癌患者作为研究对象,收集患者年龄、乳腺癌分期、病灶部位、肿瘤长径、病理分型、皮瓣厚度、皮瓣张力、包扎压力、是否合并糖尿病、术后是否发生皮瓣坏死等临床资料,并依据术后皮瓣坏死发生情况将其分为正常组与坏死组,多因素Logistic回归分析乳腺癌改良根治术后皮瓣坏死的危险因素。结果92例乳腺癌患者中乳腺癌改良根治术后出现皮瓣坏死30例(3261%),设为坏死组;未出现皮瓣坏死62例(6739%),设为正常组。单因素分析结果显示,坏死组皮瓣薄、皮瓣张力高、包扎过紧、合并糖尿病的患者比例均明显高于正常组(χ^(2)=6550、6753、6418、6332,P=0010、0009、0011、0012);多因素Logistic回归分析结果显示,皮瓣薄、皮瓣张力高、包扎过紧以及合并糖尿病是乳腺癌改良根治术后皮瓣坏死的独立危险因素(95%CI为1313~4533、1059~2640、1124~4277、1180~3899,P=0005、0028、0022、0013)。结论皮瓣薄、皮瓣张力高、包扎过紧以及合并糖尿病是乳腺癌改良根治术后皮瓣坏死的独立危险因素。

聚氨酯绷带用PEG-CL-LA共聚物的制备及其性能的研究

以辛酸亚锡为催化剂,聚乙二醇(PEG)为起始剂,ε-己内酯(CL)和乳酸(LA)为原料,在170℃和高真空的条件下直接缩聚合成了不同数量CL单元与LA单元的二元醇共聚物(PLCA)。PLCA与过量的4,4’-二苯基甲烷二异氰酸酯(MDI-100)及少量叔胺类催化剂混合,在70℃反应,得到异氰酸酯封端的共聚物混合胶体(PLCA-PU),并涂覆在聚酯多孔编织带上制备出聚氨酯绷带。保持PEG的量,改变CL和LA的比例和异氰酸酯的量,得到一系列的PLCA和PLCA-PU。对它们的结构进行了分析,并对聚氨酯绷带的固化时间、径向压缩力值进行了测试。研究结果表明:成功制备了PLCA和PLCA-PU;当R=5、n(PEG)∶n(CL)∶n(LA)=1∶6∶7时,PLCA-PU制备的绷带的固化时间为383 s,压缩力值最高能达到19.4 N;选用合适的物料配比可以满足绷带尽快固化、具有合适刚性强度的要求。

图案化致热涤纶医用绷带的制备及其性能

为探究不同分散剂对电气石分散液的分散性,以实现制备具有致热功能的医用绷带,分别以羧甲基纤维素钠、多聚磷酸钠、十二烷基苯磺酸钠和聚乙烯吡咯烷酮为分散剂,制备超细电气石粉末分散液,探究了电气石粉末的最佳分散工艺。使用丝印网框涂层工艺分别制备了点状、条形状和辐射状的图案化致热涤纶医用绷带,并分析其致热性能、力学性能及舒适性能。结果表明:当分散剂为羧甲基纤维素钠,质量分数为1.0%时,电气石分散液最为均匀稳定;绷带经图案化涂层后具有较好的致热性,点状、条形状和辐射状涂层绷带的温升值分别达到2.3、3.3、3.5℃;与未处理绷带相比,图案化涂层绷带的断裂强力、断裂伸长率及顶破强力均有所提高,透湿性改善;透气率虽有所降低,但仍保持在280~300 mm/s之间;抗弯刚度增加,但相较于全涂层绷带其柔软性显著改善,在提供致热功能的同时,保证了使用舒适性。

凡士林纱布-纱布双层加压包扎法对隐匿性阴茎术后疗效的影响

目的通过分析隐匿性阴茎术后不同内层伤口敷料对局部伤口恢复的影响情况,探讨隐匿性阴茎术后更合适的伤口敷料及包扎方法。方法回顾性分析于我院治疗的158例隐匿性阴茎患儿临床资料、术后恢复情况、第一次换药用时及患者换药满意度。根据使用内层伤口敷料种类分为3组(A.无菌纱布组,B.碘伏纱布组,C.凡士林纱布组),分别统计各组出血、感染、粘连情况,分析不同敷料对术后并发症产生的影响。结果C组出血例数与粘连例数均少于A、B组(P<0.05)。感染例数上三者差异无统计学意义。C组平均换药时间短于A、B组(P<0.05)。3组中换药时间比较,粘连越严重,换药时间越长,反之换药时间越短。C组换药满意度(90.2%)相对于A、B组更高(P<0.05)。结论凡士林纱布-纱布双层加压包扎法成本低廉,效果显著,有效减少出血、粘连及换药时间,患者满意度高,值得在临床上推广。

疼痛管理模式下不同绷带包扎时间对全膝关节置换术后患者早期功能恢复的影响

目的研究疼痛管理模式下不同绷带包扎时间对全膝关节置换术后患者早期功能恢复的影响。方法选择2022年6月至2023年5月单侧全膝关节置换手术(TKA)患者80例,根据弹力绷带使用时间,24 h为对照组(40例),48 h为研究组(40例);观察两组围手术期术侧下肢的周径、膝关节功能、伤口并发症、相关不良反应,随访期间步速、步频、步幅。结果术后7 d、14 d大腿、膝关节、小腿周径均短于对照组;术后7 d、30 d膝关节活动度(ROM)屈、伸均大于对照组,膝关节功能评分(HSS)高于对照组;术后3个月两组均出现好转,研究组步速、步频、步幅均高于对照组(P<0.05)。两组伤口并发症以及相关不良反应之间无统计学差异(P>0.05)。结论全膝关节置换术后患者在疼痛管理模式下,使用48 d弹力绷带,能够减轻术肢肿胀,增加肢体的屈伸活动,有利于膝关节功能恢复。

生物羊膜和角膜绷带镜对翼状胬肉手术后角膜创面修复的作用

背景:有文献报道,生物羊膜与角膜绷带镜应用于翼状胬肉术中均可明显减轻翼状胬肉切除术后疼痛反应、促进角膜创面愈合。目的:对比生物羊膜与角膜绷带镜对翼状胬肉术后角膜创面修复与神经性疼痛的影响。方法:选择南阳市第二人民医院2020年8月至2022年5月收治的原发性翼状胬肉患者121例(142眼),均接受翼状胬肉切除联合自体游离结膜瓣移植手术,其中63例(68眼)采用生物羊膜修复角膜创面(生物羊膜组),58例(74眼)采用硬性透氧性角膜接触镜修复角膜创面(绷带镜组)。术后随访,观察患者术后2周内的角膜创面修复情况;术后当天及术后1 d、2周,采用Wong-Baker脸评估神经性疼痛情况;术前、术后1个月、术后3个月,检测患者角膜地形图表面不对称指数、最佳矫正视力、角膜散光度及表面规则指数。结果与结论:①绷带镜组患者术后2周的角膜创面愈合率高于生物羊膜组(P<0.05),创面愈合时间短于生物羊膜组(P<0.01);②绷带镜组患者术后当天及术后1 d的神经性疼痛程度低于生物羊膜组(P<0.001),两组术后2周的神经性疼痛比较差异无显著性意义(P>0.05);③两组患者术后1,3个月的角膜地形图表面不对称指数、最佳矫正视力、角膜散光度及表面规则指数均较术前明显改善(P<0.05),绷带镜组患者术后1,3个月的角膜散光度、角膜地形图表面不对称指数及表面规则指数均低于生物羊膜组(P<0.05);④术后3个月内,生物羊膜组复发1眼(1.47%),绷带镜组复发3眼(4.05%),组间比较差异无显著性意义(P>0.05);⑤结果表明,与生物羊膜相比,角膜绷带镜修复翼状胬肉手术后角膜创面的效果更佳。

步态周期中“8”字绷带外固定对微创治疗拇外翻术后截骨端动态稳定性的有限元分析

目的建立中西医结合微创技术拇外翻足底压力生物力学模型,研究“8”字绷带外固定系统在拇外翻足术后动态力学环境中的足底应力力学数据分布特点及其生物力学规律。方法将同步的三维运动测试与地面垂直反力相应的时相结合,获得足部3个不同的角度,并对术后足踝部分在步行状态下的受力情况进行模拟。在微创治疗拇外翻术后“8”字绷带外固定有限元模型中实施加载及约束,对步行周期状态过程中各个工况时期位移及截骨端用力的情况进行计算(足跟着地时期、支撑时期、加速蹬离时期),进而对该手术步态周期中固定截骨及移位端应力的不断变化进行探究。结果中足跟着地期工况,第一跖骨截骨端最大总应力为0.118 MPa,第一主应力位于Z轴方向,为-0.116620 MPa;截骨端的最大总位移为0.447 mm,最大位移发生在X轴上,为-0.446 mm,位移方向与X轴相反,提示向外侧移位。加速蹬离期工况,截骨端最大总应力为1.485 MPa,第一主应力为-1.467620 MPa;截骨端的最大总位移为1.667 mm,最大位移发生在X轴上,为-1.658 mm。全足支撑期工况与蹬离期方向相同,数值次之。结论在步态周期中,第一跖骨截骨端所受应力以压应力为主,位移主要是截骨远端向外侧移位。术后“8”字绷带外固定能够保证步态周期中微创治疗拇外翻术后截骨端的动态稳定,增加截骨端压应力,促进截骨端愈合。

刺络放血联合弹性绷带加压冷敷在踝关节周围骨折患者中的应用

目的探究刺络放血联合弹性绷带加压冷敷在踝关节周围骨折患者中的作用。方法选择2020年6月至2022年8月无锡市中医医院收治的100例踝关节周围骨折患者为研究对象,按照随机数字表法将100例踝关节周围骨折患者分成常规组(50例,给予常规冷敷处理)和观察组(50例,在常规组的基础上给予绷带加压和刺络放血处理)。对比2组患者的肿胀程度(踝关节肿胀评分)、疼痛程度[疼痛视觉模拟评分(VAS)]、安全性、手术并发症发生率、消肿时间、住院时间以及临床疗效。结果治疗第3天和第5天,2组的踝关节肿胀评分均较治疗前降低(P均<0.05),且观察组均低于同期常规组(P均<0.05);治疗第5天,2组的踝关节肿胀评分均较治疗第3天降低(P均<0.05)。治疗5 d后,2组的VAS评分均低于治疗前(P均<0.05),且观察组低于常规组(P<0.05)。观察组的消肿时间早于常规组,住院时间短于常规组,在治疗期间的手术并发症总发生率低于常规组,治疗总有效率明显高于常规组(P均<0.05)。2组患者在治疗期间的肾功能、血常规、尿常规和心电图均正常,且均未出现药物和针刺的不良反应。结论刺络放血联合弹性绷带加压冷敷能减轻踝关节周围骨折患者的肿胀程度和疼痛程度,缩短消肿时间和住院时间,降低手术并发症发生率,提高临床疗效。