Analysis and prevention of the complications after treatment of metacarpal and phalangeal fractures with internal fixation / 中国骨伤

<p><b>OBJECTIVE</b>To retrospective analysis the complications after treatment of metacarpal and phalangeal fractures with internal fixation, and propose measures to prevent or reduce surgical complications.</p><p><b>METHODS</b>From July 2007 to October 2009, 342 patients with metacarpal and phalangeal fractures were treated with internal fixation,including 203 males and 139 females with an average age of 30.4 years old ranging from 18 to 56 years. There were 217 right hands and 125 left hands, 38 cases of the first metacarpal fracture, 47 cases of the second metacarpal fracture, 52 cases of the third metacarpal fracture, 40 cases of the forth metacarpal fracture, 39 cases of the fifth metacarpal fracture, 43 cases of the proximal phalangeal fractures, 52 cases of the middle phalangeal fractures, and 48 case of the distal phalangeal fractures. The fractures were fixed with K-wires in 129 patients, mini plates in 153 cases, screws in 48 cases, wires in 12 cases.</p><p><b>RESULTS</b>All 324 patients were followed up for 3 to 15 months (averaged 8.5 months) and complications occurred in 74 patients (22.84%). The main complication was unhealthy wound healing in 24 patients (7.4%), others was adhesion of tendon in 54 patients (16.67%), malunion in 34 patients (10.49%), nonunion in 13 patients (4.01%) and shortening of metacarpal and phalangeal in 21 patients (7.41%).</p><p><b>CONCLUSION</b>The important reasons responsible for complications are iatrogenic factors such as unsuitable implant selection, unskillful surgical technique and improper post-operative functional rehabilitation.</p>

Hygienic characteristic evaluation of an anti-immersion trousers dressed by soldiers during fighting a flood and relieving victims of a disaster I Test on land / 医疗卫生装备

In order to investigate the hygienic characteristic of anti-immersion trousers, ten male soldiers dressed in the trousers or in camouflage trousers were subjected to exercise test and sedentary test respectively at room temperature of 17?2℃. In the test, eleven parameters such as core temperature, skin temperature, heat flow and so on were observed. The results indicated that in sedentary tests, the low limb heat flow of the subjects dressed in anti-immersion trousers was larger than that dressed in camouflage trousers; the heat insulation value of anti-immersion trousers was smaller than that of camouflage trousers; and for the other parameters, there was no evident difference between the two group. It suggested that when used on land, hygiene characteristic and effect on body heat balance of the anti-immersion trousers were similar to those of camouflage trousers.

Effects of burn serum on the viscoelasticity and the structure of rat intestinal epithelial cells / 中华烧伤杂志

<p><b>OBJECTIVE</b>To investigate the effects of burn serum on the viscoelasticity and the structure of rat intestinal epithelial cells.</p><p><b>METHODS</b>The rat intestinal epithelial cell strain (IEC-6) was cultured and stimulated by burn serum. The changes of IECs before and after the stimulation were dynamically observed by cytoskeleton immunohistochemistry, ELISA and the measurement of cytomembranous viscoelasticity.</p><p><b>RESULTS</b>During the early stage of burn serum stimulation, the skeleton protein expression in IEC decreased obviously with weakened positive signals of microfilaments and microtubules and with decreased cellular elasticity.</p><p><b>CONCLUSION</b>The cytoskeleton injury could cause the increase of cellular fragility and the decrease of the viscoelasticity, which ultimately lead to the change of cellular biodynamics. These changes might directly participate the development of postburn intestinal epithelial injury.</p>

Effects of burn serum on the membrane of intestinal epithelial cell in rats / 中国病理生理杂志

AIM: To explore the mechanism and significance of the intestinal epithelial cellular membrane damage following burn serum. METHODS: The intestinal epithelial cell(IEC-6) were cultured. The changes of total membranous phospholipid contents fluidity of the IEC membrane were dynamically examined with fluorescence polarization technique and HPCE. RESULTS: In the early stage after stimulation by 20% burn serum, the membranous fluidity obviously decreased. The total phospholipid contents decreased, the content of PLA 2 markedly increased. CONCLUSION: The serial changes in IEC after burned could result in the damages of IEC membrane structure, the integrity of cell membrane and function.