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Volumetric modulated arc therapy (VMAT) for extensive skin field cancerisation (ESFC) – exploring the limits of treatment volumes with a case series of backs 体积调制电弧疗法(VMAT)用于广泛的皮肤野癌变(ESFC) -通过一系列背部病例探索治疗体积的限制
Pub Date : 2020-11-27 DOI: 10.15406/ijrrt.2020.07.00286
B. Wong, D. Christie, J. Hellyer, Corinne Henningsen, Tania Brogmus, G. Fogarty
Skin field cancerisation arises from prolonged sun exposure and increases with age. Multiple areas of the skin can be involved resulting in poor quality of life and cosmesis and even death. The long-term efficacy of traditional treatments such as topical creams is disappointing. Volumetric modulated arc therapy (VMAT) is a relatively new radiation technique that allows the definitive treatment of large convex fields. Extra dose can also be delivered simultaneously using a boost technique to proven areas of macroscopic invasive disease. In what we believe is the first publication of its kind, we present a retrospective case series of 15 patients with 21 areas treated with VMAT to the back. Treatment is feasible but areas of skin cancerisation over 800 cm2 should not be treated in one course but broken into smaller fields separated by adequate breaks. Care should be taken when treating large areas of the spine as pancytopenia may result and routine blood counts between treatment courses should be considered. More research is warranted to confirm the dose and efficacy outcomes, but this technique may represent a new therapeutic option for patients with extensive skin field cancerisation of the back.
皮肤癌变是由于长时间暴露在阳光下引起的,并随着年龄的增长而增加。皮肤的多个区域可能会受到影响,导致生活和美容质量下降,甚至死亡。传统疗法如局部面霜的长期疗效令人失望。体积调制弧线治疗(VMAT)是一种相对较新的放射技术,可以对大的凸场进行明确的治疗。额外的剂量也可以同时使用增强技术输送到已证实的宏观侵袭性疾病区域。在我们认为是同类出版物的第一篇文章中,我们提出了15例患者的回顾性病例系列,其中21个区域接受了VMAT治疗。治疗是可行的,但超过800平方厘米的皮肤癌变区域不应在一个疗程内治疗,而应以适当的间隙将其分成较小的区域。治疗大面积脊柱时应小心,因为可能导致全血细胞减少症,治疗期间应考虑常规血球计数。需要更多的研究来证实剂量和疗效,但这项技术可能为背部广泛皮肤癌变患者提供一种新的治疗选择。
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引用次数: 5
Experiences in growing a skin radiation therapy practice 有开展皮肤放射治疗实践的经验
Pub Date : 2020-11-19 DOI: 10.15406/ijrrt.2020.07.00285
G. Fogarty, D. Christie, B. Wong, E. Sim, Evan Ng, I. Porter, Tuna Ha, A. Potter
The successful treatment of skin disease decreases morbidity and mortality. Radiation therapy (RT) can cure skin disease and conserves tissue, possibly delivering better quality of life post treatment and so a superior survivorship. Modern RT delivers better dose conformality and homogeneity, and more is known about the radiobiology of skin and its diseases, enabling treatment personalisation. Skin, however, can be viewed in RT departments as not a serious subspecialty, even in Australia where the incidence of skin cancer is highest. Radiation oncology leaders are needed to carve out a niche for RT amongst a crowded field of skin carers. This article based on the cumulative experience of a group of Australian skin radiation oncologists (ROs), details how this may be achieved. First, focus is placed on growing a high-quality service. The RO needs to understand how patient, tumour and treatment factors impact the skin RT prescription. The particular nuances around skin RT planning, including immobilisation, simulation, contouring and the advantages and disadvantages of each RT modality in skin, are important to know. How skin reacts to RT when the skin is the target and the importance of fractionation is essential knowledge. Second, the RO needs to understand the needs of the skin stakeholders. These include those in the department who look to them for leadership. It includes those outside the department, that is, patients and other skin carers who could be future colleagues and even referrers. Third, the RO needs to use much needed research as a way to bring the disparate skin caring community together through completing high-quality research to guide therapy and post-treatment care.
皮肤病的成功治疗降低了发病率和死亡率。放射治疗(RT)可以治愈皮肤疾病并保存组织,可能提供更好的治疗后生活质量,因此生存率更高。现代放射治疗提供了更好的剂量一致性和均匀性,并且对皮肤及其疾病的放射生物学有了更多的了解,使治疗个性化。然而,即使在皮肤癌发病率最高的澳大利亚,皮肤在RT部门也不被视为一个严重的亚专科。放射肿瘤学的领导者需要在拥挤的皮肤护理领域中开辟一个RT的利基市场。本文基于一组澳大利亚皮肤放射肿瘤学家(ROs)的累积经验,详细介绍了如何实现这一目标。第一,重点是发展高质量的服务。RO需要了解患者、肿瘤和治疗因素如何影响皮肤RT处方。了解皮肤RT计划的具体细微差别,包括固定,模拟,轮廓以及每种RT方式在皮肤中的优缺点,都很重要。当皮肤是靶时,皮肤对RT的反应以及分离的重要性是必不可少的知识。其次,RO需要了解皮肤利益相关者的需求。这些人包括那些在部门里指望他们领导的人。它包括科室外的人,即患者和其他可能成为未来同事甚至转诊的皮肤护理人员。第三,RO需要将急需的研究作为一种方式,通过完成高质量的研究来指导治疗和治疗后护理,将不同的皮肤护理社区聚集在一起。
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引用次数: 2
Surgery of very late intrathoracic esophgeal ruptures and perforations 晚期胸内食管破裂及穿孔的外科治疗
Pub Date : 2020-11-09 DOI: 10.15406/ijrrt.2020.07.00283
L. Kotsis, Kostic Sz, P. Vadasz
Objective: The reasons of delay and a more selective management of 7 unusually late esophageal disruptions is evaluated in this study. Material and methods: In case of a 13 day-old rupture, left transthoracic debribement, primary repair with hiatusplasty was done. In a 6 week-old postpneumonectomy leak, esophageal exclusion, fenestration, chemotherapy and Roux-en-Y bypass was performed. Closure with serratus anterior flap was used in a small esophageal leak with empyema which occured 4 months after pneumonectomy. In a iatrogenic, 9 day-old esophageal injury, suture, than Urchel type temporary exclusion was carried out. In a 6 week-old iatrogenic leak with localised empyema, Urchel-Ergin type exclusion with thoracostomy was used. As a first step esophageal exclusion and than decortication was performed in a 13 day-old rupture with empyema,followed by substenal colonic bypass 2 months later. In a 7 day-old transfixion esophgeal wound, suture with drainage was performed. The patient with closed esophagus was lost, for irreversibile sepsis. Results. Recovery time was 9 to 28 days. Conclusion: Even in such unique esophageal disruptions individual approach prove to useful.
目的:探讨7例异常晚期食管破裂的延误原因和更有选择性的治疗。材料和方法:对于13天前破裂的病例,采用左侧经胸清创术,用裂孔成形术进行初步修复。在肺切除术后6周的泄漏,食管排除,开窗,化疗和Roux-en-Y旁路。我们采用前锯肌瓣封闭术治疗一例全肺切除术后4个月发生的小食道漏并脓胸。在医源性9日龄食管损伤中,进行缝合,比Urchel型暂时排除。在6周大的医源性渗漏伴局限性脓胸的病例中,我们采用了urchell - ergin型胸腔切开排除术。作为第一步,在13天大的脓胸破裂时进行食管排除,然后进行去皮,然后在2个月后进行结肠搭桥。在7天的食管穿孔伤口中,我们进行了缝合和引流。食管闭合患者因不可逆性败血症而死亡。结果。恢复时间9 ~ 28 d。结论:即使在这种独特的食道破裂中,个体入路也证明是有用的。
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引用次数: 0
Adverse impacts of mobile phone tower radiation on human health 手机信号塔辐射对人体健康的不利影响
Pub Date : 2020-11-09 DOI: 10.15406/ijrrt.2020.07.00284
S. Mohril, Mahipal Singh Sankhla, Swaroop S. Sonone, Kapil Parihar, Rajeev Kumar
These days mobile phones have become associated with elementary a part of our life, this is often one in every of the foremost necessary mediums for communication. Consequently, several portable towers are planted to hide additional areas, particularly in huddled cities and concrete areas. Now, the bottom stations made on these locations have transceivers that employ mistreatment frequency (RF) waves to determine communication among users within the mobile network. Because of the variety of base stations needed it will increase with bigger portable use with market competition, and with new technological capabilities. The microwave frequencies utilized in mobile communication cause thermal and non-thermal effects and leave a negative impact on the biological system. The quantity of RF-EMW radiation energy absorbed by human tissue depends on the frequency, intensity, polarization, and period of exposure. The EMR is recognized because of the major reason behind cancer. This review paper presents the potential biological and medicine health effects of high-intensity portable tower radiation.
如今,手机已经成为我们生活中基本的一部分,这往往是每一个最重要的必要的沟通媒介。因此,几个便携式塔被种植,以隐藏额外的区域,特别是在拥挤的城市和混凝土区域。现在,在这些地方建立的底层基站都有收发器,使用误用频率(RF)波来确定移动网络中用户之间的通信。由于需要各种各样的基站,随着市场竞争和新的技术能力,更大的便携式使用将会增加。在移动通信中使用的微波频率引起热效应和非热效应,并对生物系统留下负面影响。人体组织吸收射频emw辐射能的量取决于暴露的频率、强度、极化和时间。EMR被认可是因为它是癌症背后的主要原因。本文综述了高强度便携式塔辐射潜在的生物和医学健康效应。
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引用次数: 5
Scalp hair repigmentation in the penumbral region of radiotherapy– a case series 放射治疗后半暗区头皮头发再色素沉着-一个病例系列
Pub Date : 2020-09-28 DOI: 10.15406/ijrrt.2020.07.00282
Shimon Prasad, Nicole Dougheney, A. Hong, J. Flood, E. Paton, David Wong, Gerald B Fobarty
Introduction: Hair colour is determined by varying ratios of black-brown eumelanin and reddish-brown/reddish-yellow pheomelanin. Hair colour change has been reported with cancer therapies. Radiotherapy (RT) usually causes temporary epilation to permanent alopecia. A change in hair colour following radiation is rare and usually results in depigmentation. There has only been one other case reported of repigmentation after RT. Cases: We present five cases of changes to scalp hair pigmentation in the penumbral region in patients treated with volumetric modulated arc therapy (VMAT) for skin cancer. Five treated areas across four patients involved repigmentation from grey to black, and there was one case of depigmentation from brown to grey. The latter occurred during immunotherapy administration. For the two cases where recalculation of the dosimetry was possible for three areas, repigmentation changes happened at an average mean dose of 16 Gy (9.3 – 26 Gy) in an average of 26 (25 - 27) fractions; that is, 0.6 Gy per fraction at five fractions per week. Discussion: This series of six areas in five patients of hair colour change in the penumbral region of VMAT to the scalp for skin cancer is the first report of this phenomenon. Repigmentation of scalp hair with RT is rare. Even though rare, the potential for hair colour change may need to be part of the informed consent discussion in patients contemplating this treatment.
头发的颜色是由黑棕色的真黑色素和红褐色/红黄色的现象黑色素的不同比例决定的。据报道,癌症治疗会改变头发的颜色。放射治疗(RT)通常引起暂时脱毛到永久性脱发。辐射后头发颜色的改变是罕见的,通常会导致色素沉着。只有另一个病例报告了rt后色素沉着。病例:我们提出了5例在接受体积调节电弧疗法(VMAT)治疗皮肤癌的患者中,半暗区头皮头发色素沉着的变化。4名患者的5个治疗区域涉及从灰色到黑色的色素沉着,有1例从棕色到灰色的色素沉着。后者发生在免疫治疗期间。对于可能对三个区域重新计算剂量学的两种情况,在平均26(25 - 27)个组分中,平均平均剂量为16 Gy (9.3 - 26 Gy)时发生了重新着色变化;也就是说,每周5次,每次0.6 Gy。讨论:本系列报道了5例患者发色在VMAT半影区发生的6区变化,为头皮为皮肤癌患者首次报道这一现象。头皮头发再色素沉着与RT是罕见的。尽管罕见,但在考虑这种治疗的患者中,头发颜色改变的可能性可能需要成为知情同意讨论的一部分。
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引用次数: 2
SPECT-CT imaging in the early diagnosis of osteonecrosis of femoral head after osteosynthesis by percutane screwing in the young adult: a case report SPECT-CT早期诊断青年人过皮烷螺钉入骨后股骨头坏死1例
Pub Date : 2020-09-15 DOI: 10.15406/ijrrt.2020.07.00281
F. Fokoue, S. E. Mselmi, N. Alaoui
We report here the case of a young patient victim of a road accident and having benefited from osteosynthesis by double screwing, in whom the clinical course was marked two years later by the occurrence of osteonecrosis of the femoral head (ONFH) therefore the diagnosis was confirmed by a SPECT CT centered on the pelvis, supplementing a three-phase bone scintigraphy.
我们在此报告一位年轻的道路交通事故受害者,并受益于双螺钉固定,其临床病程在两年后发生股骨头骨坏死(ONFH),因此通过以骨盆为中心的SPECT CT确诊,补充了三阶段骨显像。
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引用次数: 0
Is more dose and skin reaction required when treating early lentigo maligna definitively with radiotherapy? A case series 放射治疗早期恶性黄斑是否需要更多的剂量和皮肤反应?案例系列
Pub Date : 2020-09-14 DOI: 10.15406/ijrrt.2020.07.00280
G. Fogarty, A. Hong, L. Rocha, RE Vilain, P. Ferguson, P. Guitera
Introduction: Atypical intraepidermal melanocytic proliferation (AIMP) is an early form of lentigo maligna (LM) which itself is a precursor to melanoma. It presents commonly on the head and neck where tissue conserving therapies are attractive. When treating LM with imiquimod, dermatologists treat until a certain level of skin inflammation is achieved. Radiation oncologists treat to a set dose of radiation irrespective of the skin reaction at completion. The dose of radiotherapy for AIMP is unknown and these lesions are currently treated in the same manner as LM. Case series: Five immunocompetent patients (average age 80 years) with AIMP or early LM (ELM) on the head and neck region were treated with RADICAL radiotherapy (RT) protocols. All treatment sites were mapped with in vivo reflectance confocal microscopy (RCM) and measured on average 4.0 cm in diameter (range 2.0–6.0 cm). The median RT dose administered was 50 Gray (Gy) [45-54 Gy] in 1.8-2Gy per fraction to the planning target volume (PTV), usually by megavoltage electrons. All patients completed RT. The peak radiation acute skin toxicity observed at any time in all patients was only dry desquamation, equivalent to a grade 2 acute radiation dermatitis reaction by Common Terminology Criteria for Adverse Events (CTCAE) Version 5.0. At a median of follow up of 10 months, all patients had biopsy proven recurrence of AIMP (n=3) or LM (n=2). All recurrences were within the RT field. Patients were followed for an average total of five years post salvage treatment (range: 26 - 124 months). Discussion: This series raises questions. First, what radiation dose is required to cure AIMP and ELM? This series suggests that the same dose, if not higher, used in established in-situ disease, is required. Second, should radiation oncologists treat to a grade 3 skin reaction? It may be then advisable to use standard fractionation (2Gy or less) so that the peak RT reaction coincides with the end of treatment and allows for titration and extra dose to be added.
非典型性表皮内黑色素细胞增殖(AIMP)是恶性lentigo (LM)的早期形式,它本身是黑色素瘤的前兆。它通常出现在头部和颈部,在那里组织保存治疗是有吸引力的。当用咪喹莫特治疗LM时,皮肤科医生治疗直到达到一定程度的皮肤炎症。放射肿瘤学家对病人进行一定剂量的放射治疗,而不管手术结束后的皮肤反应如何。AIMP的放疗剂量尚不清楚,目前这些病变的治疗方法与LM相同。病例系列:5例免疫功能正常的头颈部AIMP或早期LM (ELM)患者(平均年龄80岁)接受根治性放疗(RT)方案治疗。用体内反射共聚焦显微镜(RCM)绘制所有处理部位,测量平均直径4.0 cm(范围2.0-6.0 cm)。给予的中位放射剂量为50格雷(Gy) [45-54 Gy],每分数为1.8-2Gy,通常通过兆伏电子达到计划目标体积(PTV)。所有患者均完成了放疗。在所有患者中,任何时候观察到的辐射急性皮肤毒性峰值仅为干脱屑,相当于根据不良事件通用术语标准(CTCAE) 5.0版的2级急性辐射皮炎反应。随访中位数为10个月,所有患者活检证实AIMP (n=3)或LM (n=2)复发。所有的递归都在RT域中。患者在抢救治疗后平均随访5年(范围:26 - 124个月)。讨论:这个系列提出了一些问题。首先,治疗AIMP和ELM需要多大的辐射剂量?这一系列结果表明,在已确定的原位疾病中,需要使用相同的剂量,如果不是更高的话。第二,放射肿瘤学家是否应该治疗3级皮肤反应?因此,建议使用标准分馏法(2Gy或更少),使RT反应的峰值与治疗结束时一致,并允许滴定和添加额外剂量。
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引用次数: 3
Questions of the mathematical modeling of the progression of coronary heart disease in patients with type 2 diabetes mellitus 2型糖尿病患者冠心病进展的数学模型问题
Pub Date : 2020-09-07 DOI: 10.15406/ijrrt.2020.07.00278
Y. Urmanova, Shakhnoza Mukhtarova, Tursunkulov Ortikali, M. Mukhtarova, Kholikov Farkhod Jamoliddin Ugli
In 2017-2019, 40 patients were examined (16 of them men, 24 women) with type 2 diabetes mellitus in combination with IHD, of which 38 patients had a favorable course and 8 with an unfavorable course. For an unfavorable profile, the presence of strokes, mycocardial infarction (fatal, nonfatal), repeated hospitalizations for worsening chronic heart failure (decrease in ejection fraction), repeated surgical interventions (percutaneous coronary intervention, coronary artery bypass grafting) for the current 3 years was taken into account. The average age of patients was 65.5 years. In total, 119 signs recorded in the first three days from the moment of patient's arrival were analyzed as possible predictors of an unfavorable prognosis. From this whole set, a number of parameters with corresponding values ​​were selected as markers of coronary heart disease, which showed the highest incidence rate in the group of patients with adverse course (NBT) and the highest in the group of patients with favorable course (BT). the most pathognomonic predictors of IHD progression in patients with type 2 diabetes were systolic LV dysfunction (fv <40%), SBP> 160 mm Hg and/or DBP above 100 mm Hg. Art., severe angina pectoris, LVH and ECG signs of myocardial ischemia, persisting upon discharge from the hospital, history of ACVA comorbidity plus DM-2.
2017-2019年共检查2型糖尿病合并IHD患者40例(男16例,女24例),其中病程有利38例,病程不利8例。对于不利的情况,考虑到目前3年内中风、真菌性梗死(致命性和非致命性)、因慢性心力衰竭恶化(射血分数下降)而多次住院、多次手术干预(经皮冠状动脉介入治疗、冠状动脉旁路移植术)的存在。患者平均年龄65.5岁。总的来说,从患者到达的那一刻起的前三天记录的119个体征被分析为不良预后的可能预测因素。从这一集合中,选择了多个具有相应值的参数作为冠心病的标志物,其中不良病程组(NBT)的发病率最高,良好病程组(BT)的发病率最高。2型糖尿病患者IHD进展的最病理特征预测因子是收缩期左室功能障碍(血压160 mm Hg和/或舒张压高于100 mm Hg)。严重心绞痛、左室肥厚、心电图心肌缺血征像,出院后仍持续存在,有ACVA合并DM-2病史。
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引用次数: 0
Consistency of ESTRO and RTOG contouring guidelines for target volume delineation in early stage breast cancer 早期乳腺癌靶体积描绘的ESTRO和RTOG轮廓指南的一致性
Pub Date : 2020-09-07 DOI: 10.15406/ijrrt.2020.07.00279
T. Mathew, M. Chao, C. Lapuz, Jonathan M Tomaszewski, Bob Zhang, Megan Hall, M. Tacey, F. Foroudi
Introduction: Adjuvant radiotherapy (RT), including regional lymph node (RLN) irradiation is an important treatment in early stage breast cancer patients after breast-conserving surgery both the Radiation Therapy Oncology Group (RTOG) and European Society for Radiotherapy and Oncology (ESTRO). Our primary aim was to quantitatively compare target volumes delineated by ROs, to assess if either guideline has superior contouring reproducibility. Methods: Three ROs contoured breast clinical target volumes (CTVs), axillary lymph node levels 1-3, supraclavicular and internal mammary nodal (CTVn_IMN) volumes for 8 post-operative patients using the ESTRO and RTOG guidelines for each patient. The inter-observer variability in contouring was measured by the generalized Dice Similarity Coefficient (DSC). Mean DSC values were calculated to compare the common volume accuracy between observers.ss Results: The breast CTV contours showed the highest level of agreement between the ROs within each guideline (ESTRO DSC mean 0.92±0.04 and RTOG DSC mean 0.90±0.03). Due to the small standard deviation in DSC values, this difference of 0.02 was found to be statistically significant (p=0.031). The mean DSC for CTVn_IMN was 0.63 (±0.10) for ESTRO and 0.62 (±0.20) for RTOG guidelines, showing the least level of agreement for both guidelines. Within the axillary nodal volumes, level 1 showed the greatest agreement among the ROs for both ESTRO and RTOG guidelines with a mean DSC of 0.81 (±0.08) & 0.82 (±0.06) respectively. The range of mean DSC values for ESTRO and RTOG guidelines was 0.66-0.92 and 0.62-0.90 respectively. Conclusion: Overall, neither guideline showed a notable improvement in reproducibility between ROs.
导言:辅助放疗(RT),包括区域淋巴结(RLN)放疗是早期乳腺癌保乳手术后的重要治疗方法,无论是放射治疗肿瘤小组(RTOG)还是欧洲放射与肿瘤学会(ESTRO)。我们的主要目的是定量比较ROs描述的靶体积,以评估两种指南是否具有更好的轮廓再现性。方法:采用ESTRO和RTOG指南对8例术后患者进行乳腺临床靶体积(CTVs)、腋窝淋巴结水平1-3、锁骨上和乳腺内淋巴结(CTVn_IMN)体积3个ROs轮廓。采用广义骰子相似系数(DSC)测量轮廓的观察者间变异。计算平均DSC值,比较观察者之间的共同体积精度。结果:乳腺CTV轮廓显示各指南中ROs之间的一致性最高(ESTRO DSC平均值为0.92±0.04,RTOG DSC平均值为0.90±0.03)。由于DSC值的标准差较小,因此发现0.02的差异具有统计学意义(p=0.031)。ESTRO指南CTVn_IMN的平均DSC为0.63(±0.10),RTOG指南为0.62(±0.20),表明两种指南的一致性最低。在腋窝淋巴结体积内,水平1显示ESTRO和RTOG指南中ROs之间的一致性最大,平均DSC分别为0.81(±0.08)和0.82(±0.06)。ESTRO和RTOG指南的DSC平均值分别为0.66 ~ 0.92和0.62 ~ 0.90。结论:总的来说,两种指南都没有显示出ROs之间的可重复性的显著改善。
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引用次数: 2
Osteosynthesis of ankle fractures with an intramedullary nail of the fibula: surgical technique 用腓骨髓内钉固定踝关节骨折:外科技术
Pub Date : 2020-08-20 DOI: 10.15406/ijrrt.2020.07.00277
Matheus Levy Almeida Taveira de Souzaa, Hugo Bertani Dressler, B. J. Pádua, A. H. Gomes, J. Magalhães, Rogério de Andrade Gomes, Rodrigo Simões Castilho, Wagner Vieira da Fonseca, R. A. Almeida Pinto
Ankle fractures are common and represent approximately a quarter of all lower limb fractures. The general concepts for osteosynthesis techniques for deviated and unstable fractures have undergone little change since the 1960s. The presence of comorbidities and poor soft tissue conditions, especially in elderly patients, is associated with a higher rate of postoperative complications. Intramedullary implants have the advantage of using smaller incisions, which minimizes skin damage allowing for early loading. The present technical note describes the use of the fibular intramedullary nail with a minimally invasive approach to deviated and unstable ankle fractures.
踝关节骨折很常见,约占所有下肢骨折的四分之一。自20世纪60年代以来,斜向骨折和不稳定骨折的骨固定技术的一般概念几乎没有变化。合并症和软组织状况不佳的存在,特别是在老年患者中,与较高的术后并发症发生率相关。髓内植入物的优点是使用较小的切口,最大限度地减少皮肤损伤,允许早期加载。目前的技术说明描述了使用腓骨髓内钉微创入路治疗偏离和不稳定的踝关节骨折。
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引用次数: 0
期刊
International Journal of Radiology & Radiation Therapy
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