Paraprosthetic Complications After Endoprosthesis Replacement of Pelvis Joint with Implants

Purpose

The purpose of the paper is shaping of ideas about possible ways of decreasing complications of the analyzed types of operations and identification of opportunities of the impact on the socio-economic environment among the Afro-American population of USA. The paper demonstrates that the issue of coxofemoral prosthesis is not only a purely medical but also a social problem. In particular, availability of timely aid, as well as insurance in the form of surgery, refer to relevance of the range of problems.

French creativity in body contouring surgery

Since the end of (XIX)th century, many French surgeons have contributed in body contouring surgery evolution. In this article, the authors outline the most essential innovations as the invention of inflatable mammary implants by H.-G. Arion or fat remodeling surgery revolutionized with liposuction by Y.-G. Illouz. The authors end with a field, which is undergoing rapid changes: excess skin surgery. Before 2000, this surgery was known for its complications: necrosis, prolonged effusions, bad scarring. It was imperative to innovate since demand is exponential as the worldwide spread of obesity and massive weight loss which results from it.     

微创锁定钢板和交锁髓内钉治疗胫腓骨骨折的疗效分析

目的分析比较2种内固定治疗胫腓骨骨折的临床疗效及术后并发症。方法选择2008年6月-2011年6月收治的资料完整、均获得随访的102例胫腓骨骨折患者,根据手术方式不同,将患者分为微创钢板内固定组50例、交锁髓内钉内固定组52例。记录两组手术时间、出血量、术后并发症、下地时间、骨折愈合时间以及植入后1年膝关节HSS评分结果。结果102例患者均获随访,随访时间13-18个月。微型锁定钢板内固定组手术时间、出血量均低于交锁髓内钉内固定组（P〈0．05）。随访50例微型钢板患者2例感染,1例延迟愈合,1例畸形愈合,无不愈合发生;52例交锁髓内钉内固定组1例感染,1例延迟愈合,1例不愈合,无畸形愈合发生。结论两组术后并发症发病率、下地时间、置人后1年膝关节HSS评分及生物相容性差异无统计学意义,提示采用微创锁定钢板治疗胫骨骨骨折较交锁髓内针更为微创,具有手术时间短优势。     

Body Shaping and Volume Restoration: The Role of Hyaluronic Acid

Driven by the rising popularity of minimally invasive techniques, the demand for cosmetic procedures is increasing. Cosmetic body-shaping procedures can be categorized into those that remove tissue and those that add volume. This review focuses on the latter of these categories, particularly on the use of resorbable hyaluronic acid gels specifically developed for minimally invasive volume enhancement. Pilot studies of hyaluronic acid involving its injection to contour various body deformities and its recent use in female breast augmentation are discussed. Injectable hyaluronic acid is effective and well tolerated. It represents an attractive treatment option for volume restoration or augmentation by providing predictable long-lasting results after minimally invasive administration. Alternative treatment options for volume enhancement also are summarized including fat transfer, silicone implants, and the use of injectable nonresorbable products such as silicone, polyalkylimide, and polyacrylamide gels. As patients continue to opt for nonsurgical procedures that offer predictable results, the development of minimally invasive products such as hyaluronic acid is increasingly important.     

Image analysis of soft-tissue in-growth and attachment into highly porous alumina ceramic foam metals

The detailed quantitative characterization of soft-tissue in-growth into highly porous artificial implants is critical to understanding the biophysical processes that will lead to the best structural scaffolding construct. Previous studies have performed mechanical peel tests and mostly qualitative histological analyses of soft-tissue. The goal of this paper is to report the results obtained from applying two image analysis algorithms to quantify the morphological structure found in histological images of stained soft-tissue in-growth into alumina ceramic foam metal implants using a canine model. Three different pore sizes were used and three different post-operative time points were considered. Using the 2D Wavelet Transform Modulus Maxima method and 2D Fourier Transform analysis, a strong anisotropic signature (directional preference) is detected in early (4-week) histological samples. The direction of preference is towards the center of the implants. The strength of the anisotropy at later time points (8 and 16 weeks) becomes gradually weaker. Our interpretation is that after a short period of time, the main tissue growth activity has been concentrated on filling the artificial implant by growing towards its center. The weaker anisotropic signature found at later time points is interpreted as the tissue growth activity strengthening its structure by growing in more random directions.     

Neck design对牙根形种植体边缘骨吸收的影响

目的：评价种植体功能性负载后对种植体表面在边缘骨水平的宏观和微观结构的影响。方法：采用非嵌入式种植一期手术,不行引导骨再生术。种植术后按时间段（3,6,12个月）进行影像学观察。结果：Ankylos种植系统（1.32±0.24mm）3个时段出现轻微的骨吸收,有统计学意义（P〈0.05）。Straumann种植系统（0.76±0.19mm）与Osstem种植系统组（0.21±0.12mm）3个月时段骨吸收量显著减少,但3～6个月与6～12月时段骨吸收量无显著性差异（P〉0.05）。3个种植系统组在上、下颌植入部位的边缘骨吸收量无统计学意义（P〉0.05）。结论：不同颈部设计的牙根形种植体边缘骨吸收量具有显著性差异,宏观表面结构种植体系统比精密颈部与微观表面结构的种植系统边缘骨吸收更稳定。     

皮下埋植避孕剂月经异常影响因素分析

目的:对皮下埋植避孕剂的副反应、月经异常停用率和可接受性进行评价。方法:本研究为多中心回顾性对比研究,采用多元COX回归逐步法进行多因素分析。结果:研究对象在使用皮埋剂2年内月经紊乱发生率最高,其中点滴出血/经期延长,占40%。续用皮埋剂者在2年内恢复月经正常者较停用者多,两者比较有显著性差异。体重轻、末次避孕方法因副反应停用、使用皮埋剂后影响性生活、体重变化大、出现点滴出血/经期延长者因月经异常而停用皮埋剂的风险率较高。年龄轻、人流次数多者对皮埋剂的耐受性较好。结论:在使用皮埋剂的前2年,积极治疗皮埋剂引起的月经紊乱,可以提高皮埋剂的续用率和接受性。