Objective To study the surgical strategies and techniques for the correction of congenital kyphoscoliosis with hemivertebra and evaluate the surgical results. Methods From June 2010 to June 2011,there were 6 congenital kyphoscoliostic patients with fully segmented hemivertebra were undergone hemivertebra resection through posterior approach, which included 4 males and 2 females with an average age of 15.7 years. The average Cobb angle of scoliosis was 73.4° (range, 52°~87°), the average Cobb angle of segmental kyphosis was 67.4° (range, 43°~89°) . The highest level of hemivertebrae was T9 and the lowest was L2. The surgical strategies were designed as followed:For the 2 cases without structural compensative curve, the posterior hemiverte-brae resection and short segmental internal fixation were performed. For the 4 cases with structural compensative curve, whose Risser signs were classified into 2-5, the hemivertebrae resection and long segmental internal fixa-tion were performed, and the compensative curve was included in the instrumentation level. Results The opera-tion time was 2.5~4.0 h (average,3.5 hours), the blood loss was 700-2 000 mL (mean,1 367 mL) . Numb-ness happened in one lower extremity postoperatively in 1 patient, and the symptom released in 1 month. The aver-age postoperative Cobb angle in coronal plane was 21.4° (11°~28°) with a correction rate of 67.9%. The aver-age postoperative Cobb angle in sagittal plane was 17.8° (12°~35°) with a correction rate of 75.2%. The fol-low-up period was from 26 months to 36 months (average, 26 months),no pseudoarthrosis,and obvious correc-tion loss either in coronal or sagittal plane was noted. Conclusion Hemivertebra resection and individualized oper-ation way has a good capability of correcting congenital kyphoscoliosis caused by hemivertebra.

Objective: To evaluate the effectiveness of the "Internet Plus-based AIDS Comprehensive Prevention Service System" among men who have sex with men in Guangzhou. Methods: Data through case-reporting and follow-up programs on MSM HIV/AIDS in Guangzhou was collected from the China Information System for Disease Control and Prevention, which including those from the referral and follow-up treatment compliance programs in 2008-2014 (pre-treatment) and 2017-2018 (post-treatment). According to the types of care services, three groups were set as: with "Internet Plus" service, with 'HIV counseling/testing service’ or with 'routine medical service’. General Estimating Equation (GEE) was used to analyze the follow up situation of HIV/AIDS cases, annually. Cox proportional hazard regression model was used to analyze the proportions of treatment referral, within the 30 days of diagnosis. Results: Before the implementation of immediate treatment after HIV diagnosis, 90.6% (707/780) of the HIV/AIDS cases received the first follow up program including the CD₄⁺ T cells counts (CD₄) test service within 90 days of diagnosis, in the "Internet Plus-based HIV/AIDS care service" group presented 1.19 times (95%CI: 1.14-1.25) of the routine medical service group. The implementation of immediate treatment after HIV diagnosis, compared with the routine medical service group, the "Internet Plus" service group presented 1.71 times (95%CI: 1.03- 2.83) more treatment referrals within the 30 days of diagnosis, when the first testing CD₄ was ≤200 cells/μl. Compared with the routine medical service group, the HIV counseling and testing service group showed 1.37 times (95%CI: 1.20-1.56) more of the treatment referrals within the 30 days of HIV diagnosis, after the first testing CD₄ counts as >200 cells/μl. Conclusion Standardized care and follow-up service should be promoted as soon as the referral and treatment programs were set after the diagnosis was made, under the "Internet Plus-based AIDS Comprehensive Prevention Service System" for the MSM population, in Guangzhou.