Marjolin’s ulcer of the forearm from 30-year-neglection of external fixator

BackgroundMarjolin’s ulcers are a rare form of malignancy that present at regions exposed to chronic infection. They present with a clinical triad of nodularity, induration, and ulceration greater than 3 months.Case reportWe present herein, an extremely rare case of Marjolin’s ulcer of the forearm, secondary to osteomyelitis, resulting from a 30-year neglection of external fixator used to treat a war injury of the forearm.DiscussionMarjolin’s ulcers are classically encountered in lower extremities at sites of burns, trauma or complicated wounds. In the upper extremity however, they are seldom mentioned in literature. The presence of risk factors raise the suspicion of the disease.ConclusionMarjolin’s ulcer is rare sequelae of chronic wound infection. Patients often present after a latency period with exacerbated pain, discharge, and exophytic mass. This disease should be suspected in every case of chronic ulcer, where histological studies of the lesion must be conducted to exclude or confirm the diagnosis.     

双板式内固定以及限板式内固定联合外部固定支架对肱骨远端C型骨折的临床疗效对比分析

目的对比分析双板式内固定与限板式内固定联合外部固定支架治疗肱骨远端C型骨折的疗效。方法收集2011年1月~2013年3月期间,我院收治的肱骨远端C型骨折66例,随机分为A组和B组,各33例。A组行双侧重建钢板固定术,B组行铰链式外固定支架联合有限内固定术,比较两组的临床疗效。结果 A组的肘关节功能优良率为81.82%,与B组87.88%比较无显著差异(>0.05);两组术后肘关节活动度无显著差异(>0.05),但B组的骨折愈合时间较A组显著缩短(<0.05);A组的异位骨化发生率为15.15%,显著高于B组的3.03%(<0.05)。结论双板式内固定与限板式内固定联合外部固定支架治疗肱骨远端C型骨折的疗效相当,均具有较好的疗效,但限板式内固定联合外部固定支架的骨折愈合时间更短,异位骨化发生率更低,更具应用优势。     

腭扁桃体血管的应用解剖

在30例已固定的成人尸体头部标本上观察了腭扁桃体的动脉、静脉及其毗邻关系。腭降动脉及腭升动脉腭支主要分布于扁桃体的上极和上部;咽升动脉及腭升动脉主干分布于扁桃体的中部;面动脉主干及舌动脉则主要分布于扁桃体的下部和下极。以上各动脉分支均穿过咽上缩肌直接分带于扁桃体。腭扁桃体静脉先于其被膜下形成静脉网,再汇集成1～5支扁桃体静脉,后分别流入扁桃体旁静脉、咽静脉和舌静脉内。     

胫骨上端外部形状及内部结构的模拟

目的，进行胫骨上端内部结构和外部形状的模拟。方法，采用高阶非线性骨再造速率方程和有限元方法相结合，引入拓扑优化的思想，选取大于模拟的胫骨上端外形的模拟域，从不固定外形出发，对正常力学环境下的胫骨上端内部结构及外部形状进行模拟。结果，模拟的胫骨上端的外部形状和内部结构与真实结构十分接近。     

老年组与中成年组髂外动脉的形态学比较

本文观微和测量了50具国人髂外动脉(左右合计100侧),并将所有观测项目按年龄分为老年组(60岁以上者)和中成年组(19—60岁)进行了统计学处理。结果发现:髂外动脉的长度、外径、髂外动脉与髂内动脉之间的夹角以及髂外动脉的弯曲程度在老年组与中成年组之间均有高度显著性差异。     

髋关节外固定器对股骨头压力影响的三维有限元分析

目的从三维有限元分析的角度,探讨髋关节外固定器对股骨头压力的影响。方法建立正常的髋关节三维有限元模型、安装单轴髋关节外固定器(A型)髋关节三维有限元模型、安装双轴髋关节外固定器(B型)的髋关节三维有限元模型,应用接触压力分析的方法,观察并分析髋关节双足站立位、单腿站立髋关节中立位股骨头的峰值压力,并进行统计学分析。结果髋关节外固定器均能减少股骨头的接触压力(P<0．05),髋关节外固定器在双腿站立时减少最明显,B型髋关节外固定器组较A型髋关节外固定器的股骨头接触压力减小。结论髋关节外固定器可减少股骨头的压力,可辅助治疗髋关节疾病。     

Treatment of type C3 distal radius fracture resulted from high-energy injuries by volar plate in combination with external fixator

Background With a type C3 distal radius fracture it is extremely difficult to maintain the reduction and to restore congruity of the articular surface because the support for the volar and dorsal bone cortex has been lost. An external fixator crossing wrist in combination with Kirschner wire (K-wire) fixation was popularly used by most studies in recent years. But loss of reduction often occurred especially in the volar sides. Methods A total of 30 cases of type C3 distal radius fracture were treated by a volar buttress plate combined with a transarticular external fixator and other techniques such as K-wire fixation and bone grafting if necessary. The postoperative volar tilt angles, ulnar inclinations, radial heights, range of motion, grip strength and complications were recorded to assess the therapeutic effects. Results Of the 30 patients, 27 patients were followed up for 12-29 (mean 18) months and all fractures healed in 8-13 weeks after surgery (mean 10 weeks). The wrist function was excellent in 8 cases, good in 16 cases and fair in 3 cases according to the Sarmiento scoring system (modified by Stewart).Conclusions For type C3 comminuted fracture with severe volar and dorsal instability, fixation by volar buttress plate combined with transarticular external fixator should be adopted. Dorsal instability could be further stabilized by other techniques such as Kirschner wire fixation, and bone grafting.     

Embracing fixator for treating periprosthetic femoral fractures

Ｆｅｍｏｒａｌｆｒａｃｔｕｒｅｓｉｎｔｈｅｐｒｅｓｅｎｃｅｏｆｏｔｈｅｒｉｎｔｒａｍｅｄｕｌｌａｒｙｉｍｐｌａｎｔｓａｒｅｕｎｃｏｍｍｏｎ Ｔｈｅｓｅｆｒａｃｔｕｒｅｓａｒｅｄｉｆｆｉｃｕｌｔｔｏｍａｎａｇｅａｎｄｔｈｅｐｒｅｓｅｎｃｅｏｆｏｔｈｅｒｉｎｔｒａｍｅｄｕｌｌａｒｙｉｍｐｌａｎｔｓｃｒｅａｔｅｓａｃｏｍｐｌｅｘｐｒｏｂｌｅｍ Ｔｈｅｒａｔｅｏｆｔｈｅｓｅｆｒａｃｔｕｒｅｓｈａｓｉｎｃｒｅａｓｅｄｄｕｅｔｏａｎｉｎｃｒｅａｓｅｉｎｔｈｅｎｕｍｂｅｒｏｆｐａｔｉｅｎｔｓｈａｖｉｎｇｔｏｔａ…     

脑膜瘤术前颈外供血动脉超选择栓塞治疗

目的 回顾40例脑膜瘤施行术前血管内栓塞治疗,阐明栓塞的效果。方法 40例幕上脑膜瘤均行术前超选择颈外供血动脉明胶微粒栓塞,栓塞后1－7d行开颅脑膜瘤切除。结果 肿瘤单纯颈外供血19例,颈内、颈外均参与供血21例（其中颈内为主6例）。肿瘤全切除38例,大部分切除2例,无栓塞相关并发症。结论 单纯颈外供血或主要颈外供血者,栓塞后3－7d施肿瘤切除术,术中出血明显减少,手术时间显著缩短,并发症少。超选择栓塞治疗能减少栓塞治疗本身的并发症,是一种安全而有效的辅助治疗。     

《伤寒论》外治法举隅

汉·张仲景著《伤寒论》中辨证论治体系也包括外治法的内容 ,《伤寒论》中的外治法有针、灸、温覆、熏、导、温粉等治疗方法 ,在临床上用于解表、泻下、和解、清热、温里、固涩、祛湿、预防传变等若干方面。