Social participation in persons with upper limb amputation receiving an esthetic prosthesis

Study DesignQualitative study.IntroductionAn amputation injury to the hand may lead to not only impaired hand function but also psychosocial consequences.Purpose of the StudyThe purpose of the study was to explore personal experiences of social participation for persons provided with an esthetic prosthesis after acquired upper limb amputation.MethodsThirteen persons with acquired upper limb amputation, who were in need of and had received an esthetic prosthesis, were interviewed. The transcribed text was subjected to content analysis.ResultsThe emotional reactions to a visibly different hand were linked to a changed appearance and a feeling of being exposed. Recollecting the accident could result in nightmares and sleeping disorders. A change of personality, due to sadness after the amputation was expressed, as well as social insecurity and impact on relations and life roles. Adapting to social challenges comprised hiding or exposing the hand, using personal internal resources and receiving support from others. The esthetic prosthesis contributed to an intact appearance and could serve as a facilitator for initial or long-term social participation. The time that had passed since the injury made it easier to deal with the consequences or in achieving acceptance.DiscussionCoping with emotions and social relations after an acquired amputation can be difficult and complex.ConclusionsIndividual needs must be considered and questions about appearance and how it may affect social participation must be asked. An esthetic prosthesis can normalize the appearance and offer the confidence needed to facilitate social participation in those struggling with appearance-related concerns.     

Influence of valve prosthesis type on early mortality in patients undergoing valve surgery

Objective

To evaluate the influence of the type of prosthesis in-hospital mortality in the post-operative period in patients who had valve replacement.

Methods

A cross-sectional data, such as gender, origin, age, etiology, echocardiograph data, the type of surgery performed and the prosthesis used in cases of valve replacement were analyzed retrospectively.

Results

We reviewed 353 charts of patients who underwent valve replacement surgery. The mean age was 41.87±17.9 years. Regarding gender, 52.8% were female. As for the origin, 61.1% came from small cities within the state. Of all patients, 58.5% suffered from rheumatic disease. Assessing the type of prosthesis implanted, 70% held replace by bioprosthesis and 30% metallic. The hospital mortality in this study was 11%, with no significant difference between the types of prosthesis utilized.

Conclusion

The type of implant used had no effect on in-hospital mortality.     

‘A reservoir within a reservoir’ – An unusual complication associated with a defunctioned inflatable penile prosthesis reservoir

INTRODUCTION

Inflatable penile prostheses (IPP) have been a successful method of treating men with erectile dysfunction since the early 1970s. IPP are comprised of two intracorporal cylinders, a scrotal pump and a fluid reservoir.

PRESENTATION OF CASE

We present a case of a retained reservoir in a sixty eight year old gentlemen presenting with a cystic abdominal mass and bothersome LUTS, 15 years after the removal of the penile components of a three-piece penile prosthesis. Percutaneous drainage of the cyst was performed, with four litres of purulent fluid evacuated. A midline laparotomy was required to remove the reservoir and drain the collection completely.

DISCUSSION

Inflammatory reaction and subsequent erosion of an IPP reservoir is an infrequent but severe complication of IPP insertion, replacement or infection. Infection remains the primary indication for penile prosthesis removal and in this setting removal of the reservoir is routine. A thorough literature search has identified that in the non-infective setting, the routine removal of the original reservoir is not standard practice during three-component IPP replacement. In patients with a history of IPP presenting with new LUTS, reservoir erosion should be considered in the differential diagnosis and investigation with cystoscopy and computed tomography included early in the investigatory armament of the urologist.

CONCLUSION

It is our belief that a defunctionalized reservoir serves no purpose; rather it can only cause trouble in the future. Consequently, at our institution we do not leave defunctionalized reservoirs in situ.     

腰椎棘突间动态稳定装置Coflex不同置入深度对相邻节段运动范围影响的生物力学研究

目的:探讨置人腰椎棘突间动态稳定装置Coflex不同深度后对上下相邻节段运动范围的影响.方法:将6具新鲜成人尸体腰椎标本(L1～L5)两端固定在生物力学测试系统上,以L3/4节段为手术节段,L2、L3、L4、L5椎体放置运动范围记录系统用以记录相邻节段(L2/3、L4/5)运动范围.分别对腰椎标本完整状态(保持腰椎韧带及小关节完整)、5mm状态(Coflex的U形顶端距离硬脊膜5mm)、0mm组(距离为0mm)分别加载8N·m的纯力矩进行生物力学测试,测试顺序为前屈、后伸、左右侧弯、左右侧旋,并记录相邻节段L2/3、L4/5的运动范围.对3组标本在6个方向的相邻节段(L2/3、L4/5)运动范围分别行单个因素的重复测量方差分析,两两对比采用LSD检验.结果:L2/3节段在前屈、后伸、左右侧弯、左右侧旋6个方向的运动范围,完整组分别为4.23°±0.25°、3.56°±0.14°、3.07°±0.12°、3.34°±0.08°、2.53°±0.16°、2.44°±0.11 °;5mm组分别为4.40°±0.21 °、3.64°±0.14°、3.09°±0.11°、3.35°±0.07°、2.54°±0.16°、2.46°±0.10°;0mm组分别为4.47°±0.20°、3.72°±0.16°、3.14°±0.10°、3.38°±0.08°、2.58°±0.15°、2.49°±0.12°;三组间差异均无统计学意义(P＞0.05).L4/5节段三组标本在前屈、后伸、左右侧弯、左右侧旋6个方向的运动范围,完整组分别为3.80°±0.28°、3.45°±0.11°、3.25°±0.11°、3.28°±0.13°、2.44°±0.11°、2.42°±0.11°;5mm组分别为3.86°±0.28°、3.52°±0.11°、3.28°±0.09°、3.31°±0.05°、2.50°±0.07°、2.46°±0.09°;0mm组分别为3.90°±0.28°、3.59°±0.10°、3.32°±0.08°、3.36°±0.06°、2.52°±0.08°、2.48°±0.09°;三组间差异均无统计学意义(P＞0.05).结论:腰椎棘突间动态稳定装置Coflex的U形顶端与硬脊膜的距离≤5mm时,上下邻近节段在前屈、后伸、左右侧弯、左右侧旋6个方向运动范围较完整状态无明显增加.     

Automatic modeling of pectus excavatum corrective prosthesis using artificial neural networks

Pectus excavatum is the most common deformity of the thorax. Pre-operative diagnosis usually includes Computed Tomography (CT) to successfully employ a thoracic prosthesis for anterior chest wall remodeling. Aiming at the elimination of radiation exposure, this paper presents a novel methodology for the replacement of CT by a 3D laser scanner (radiation-free) for prosthesis modeling.The complete elimination of CT is based on an accurate determination of ribs position and prosthesis placement region through skin surface points. The developed solution resorts to a normalized and combined outcome of an artificial neural network (ANN) set. Each ANN model was trained with data vectors from 165 male patients and using soft tissue thicknesses (STT) comprising information from the skin and rib cage (automatically determined by image processing algorithms). Tests revealed that ribs position for prosthesis placement and modeling can be estimated with an average error of 5.0 ± 3.6 mm. One also showed that the ANN performance can be improved by introducing a manually determined initial STT value in the ANN normalization procedure (average error of 2.82 ± 0.76 mm). Such error range is well below current prosthesis manual modeling (approximately 11 mm), which can provide a valuable and radiation-free procedure for prosthesis personalization.     

骨盆髋臼周围恶性肿瘤切除后人工骨盆假体重建手术探讨——附12例报告

背景与目的:骨盆髋臼周围的恶性肿瘤,由于肿瘤部位深,切除范围又是身体负重力线必经之路,故肿瘤切除及肿瘤切除后骨盆髋关节的修复重建,是骨肿瘤手术治疗中一项非常复杂的外科技术.本文总结骨盆髋臼周嗣恶性肿瘤的切除及肿瘤切除后骨盆髋关节假体修复重建的方法和临床经验.方法:回顾中山大学附属第一医院1995年至2006年对12例骨盆髋臼周围恶性肿瘤切除后进行骨盆及髋关节假体修复重建的临床资料,就术前准备、手术方案制定、肿瘤假体设计、手术操作、髋关节修复重建、术后肢体功能康复训练等进行分析,探讨该类肿瘤的临床手术治疗特点.结果:12例均能按照原定手术方案切除肿瘤和修复重建髋关节,术后随访时间8～86个月,中位时间46个月,4例复发,其中2例骨肉瘤患者分别在术后15个月和22个月死于双肺广泛转移;1例软骨肉瘤患者术后26个月局部复发,38个月死亡;1例骨巨细胞瘤患者术后13个月局部复发,再行局部病灶清除术,至末次随访日未见再复发.其余病例至末次随访仍生存,未见肿瘤复发或转移.按Kaplan-Meier法计算1年生存率为75.0%,3年、5年生存率均为33.3%,7年生存率为25.0%.肢体功能评分参照人工全髋关节置换术后Rarris评分标准,60～69分3例,70～79分5例,80～90分4例.结论:骨盆肿瘤切除及髋关节假体修复重建具有手术难度大、风险高的特点,对于恶性程度相对较低的骨肿瘤,该手术治疗是较理想的方法之一.