| 2 | National incidence of joint dislocation in China:a retrospective survey of 512,187 individuals显示文摘Background:Joint dislocations significantly impact public health.However,a comprehensive study on the incidence,distribution,and risk factors for joint dislocations in China is lacking.We conducted the China National Joint Dislocation Study,which is a part of the China National Fracture Study conducted to obtain the national incidence and risk factors for traumatic fractures,and to investigate the incidence and risk factors for joint dislocations.Methods:For this national retrospective epidemiological study,512,187 participants were recruited using stratified random sampling and probability-proportional-to-size method from January 19 to May 16,2015.Participants who sustained joint dislocations of the trunk,arms,or legs(skull,sternum,and ribs being excluded)in 2014 were personally interviewed to obtain data on age,educational background,ethnic origin,occupation,geographic region,and urbanization degree.The joint-dislocation incidence was calculated based on age,sex,body site,and demographic factors.The risk factors for different groups were examined using multiple logistic regression.Results:One hundred and nineteen participants sustained 121 joint dislocations in 2014.The population-weighted incidence rate of joint dislocations of the trunk,arms,or legs was 0.22(95%confidence interval[CI]:0.16,0.27)per 1000 population in 2014(men,0.27[0.20,0.34];women,0.16[0.10,0.23]).For all ages,previous dislocation history(male:OR 42.33,95%confidence interval[CI]:12.03-148.90;female:OR 54.43,95%CI:17.37-170.50)and alcohol consumption(male:OR 3.50,95%CI:1.49-8.22;female:OR 2.65,95%CI:1.08-6.50)were risk factors for joint dislocation.Sleeping less than 7 h/day was a risk factor for men.Compared with children,women aged≥15 years(female 15-64 years:OR 0.16,95%CI:0.04-0.61;female≥65 years:OR 0.06,95%CI:0.01-0.41)were less likely to sustain joint dislocations.Women with more than three children were at higher dislocation risk than women without children(OR 6.92,95%CI:1.18-40.78).Conclusions:The up-to-date data on joint dislocation incidence,distribution,and risk factors can be used as a reference for national healthcare,prevention,and management in China.Specific strategies for decreasing alcohol consumption and encouraging adequate sleeping hours should be developed to prevent or reduce dislocation incidents.Trial Registration:Chinese Clinical Trial Registry,ChiCTR-EPR-15005878. | Hongzhi Lv Wei Chen Zhiyong Hou Siming Jia Yanbin Zhu Bo Liu Xiao Chen Guang Yang Lei Liu Tao Zhang Haili Wang Bing Yin Song Liu Jialiang Guo Xiaolin Zhang Yichong Li Yingze Zhang | 2022 | Chinese Medical Journal2022，，14： | 0 |
| 3 | Nerve transfer with 3D-printed branch nerve conduits显示文摘Background:Nerve transfer is an important clinical surgical procedure for nerve repair by the coaptation of a healthy donor nerve to an injured nerve.Usually,nerve transfer is performed in an end-to-end manner,which will lead to functional loss of the donor nerve.In this study,we aimed to evaluate the efficacy of 3D-printed branch nerve conduits in nerve transfer.Methods:Customized branch conduits were constructed using gelatine-methacryloyl by 3D print-ing.The nerve conduits were characterized both in vitro and in vivo.The efficacy of 3D-printed branch nerve conduits in nerve transfer was evaluated in rats through electrophysiology testing and histological evaluation.Results:The results obtained showed that a single nerve stump could form a complex nerve network in the 3D-printed multibranch conduit.A two-branch conduit was 3D printed for transferring the tibial nerve to the peroneal nerve in rats.In this process,the two branches were connected to the distal tibial nerve and peroneal nerve.It was found that the two nerves were successfully repaired with functional recovery.Conclusions:It is implied that the two-branch conduit could not only repair the peroneal nerve but also preserve partial function of the donor tibial nerve.This work demonstrated that 3D-printed branch nerve conduits provide a potential method for nerve transfer. | Jing Zhang Jie Tao Hao Cheng Haofan Liu Wenbi Wu Yinchu Dong Xuesong Liu Maling Gou Siming Yang Jianguo Xu | 2022 | Burns & Trauma2022，10，1： | 0 |
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