Objective To study the characteristics and regularities of somatotype of Bai ethnicitty children and adolescents in Hu ’ nan.Methods The somatotype growth of 1525 Bai children and adolescents ( male: 748, female:777) was evaluated by the Heath-Carter anthropometric method.Results The mesomorphy of male was bigger than that of female, and endomorphy of female was bigger than that of male .The primary somatotype in male was mesomorph and ectomorph , and it was central and ectomorph in female .The somatotypes developed from balanced mesomorph , ectomorphic mesomorph , mesomorph-ectomorph , mesomorphic ectomorph to mesomorph-ectomorph in male; however , in female from central, balanced ectomorph , central, endomorph-mesomorph to mesomorphic endomorph .Conclusion The somatotypes are very different between males and females of Bai ethnicity children and adolescents .The somatotype of males is slender with less fat and more muscular , however , they are plumper with more body fat and shorter stature in females .Bai ethnicity children and adolescents have less muscular , less fat and shorter stature than Mongolian and other populations .

BACKGROUND:The therapeutic regimen of intraarticular calcaneal comminuted fractures commonly selects plate and screw fixation. However, for case of posterosuperior calcaneal fracture, the weakness of achil es tendon stretch and plate screw fixation results in difficulty or maintenance of reduction. OBJECTIVE:To investigate the therapeutic effects of open reduction and internal fixation with steel screw and Steinmann pins for comminuted calcaneal intra-articular and posterosuperior fractures. METHODS:From December 2009 to December 2013, forty patients with fractures of comminuted calcaneal posterosuperior fractures were randomly divided into two groups. In the control group, patients were treated by open reduction and internal fixation by plate screw only. In the experimental group, patients were treated by open reduction and internal fixation by combination of plate screw and Steinmann pin. The Gissane and Bohler angles of the calcaneus were measured from lateral radiograph before and 4 weeks after surgery, and the MARYLAND score was assessed at the last fol ow-up. Gissane and Bohler angle and MARYLAND score were compared in each group and among different groups. RESULTS AND CONCLUSION:Al patients were fol owed up for 9-23 months. BOHLER and GISSANE angles were significantly bigger at 4 weeks after surgery compared with pre-treatment in both groups (P<0.05). BOHLER and GISSANE angles were significantly bigger in the experimental group than in the control group at 4 weeks after surgery (P<0.05). During final fol ow-up, the average score by MARYLAND Foot Score was 78 in the experimental group and 67 in control group, with their excellent and good rate of 80%and 73%. The excellent and good rate was significantly higher in the experimental group than in the control group (P<0.05). These data indicated that open reduction and internal fixation with combination of plate screw and Steinmann pin has better efficacy in treatment of the comminuted calcaneal intra-articular and posterosuperior fractures compared with plate and screw fixation alone. Their fixation is firm. Functional exercise can be performed earlier. Postoperative recovery of function of the affected limbs is better than plate and screw fixation alone.

Objective To analyze the risk factors for iatrogenic pseudoaneurysm(PSA)occurring after cardiovascular interventional procedures.Methods The clinical data of 48 patients,who developed PSA after receiving cardiovascular interventional procedure at the Yantai Yuhuangding Hospital of China between January 2018 and December 2022,were retrospectively analyzed.The control group included 192 patients who had no PSA.At a case-control ratio of 1∶4,the PSA patients and non-PSA patients were paired,and the paired indicators included age,and puncture site.Univariate and multivariate logistic regression analyses were used to analyze the patients'basic data,hematological examination,and situation of the interventional procedure,and the independent risk factors were screened out.Results Multivariate logistic regression analysis showed that the high body mass index(BMI,OR=1.324,95％CI=1.097-1.598,P=0.003),smoking history(OR=4.477,95％CI=1.599-12.536,P=0.004),use of antiplatelet agents(OR=4.861,95％CI=1.018-23.214,P=0.047),combination use of antiplatelet and anticoagulant(OR=26.994,95％CI=2.353-309.686,P=0.008),the operator of the interventional procedure being an attending physician(OR=5.817,95％CI=1.139-29.717,P=0.034),low haemoglobin level(OR=0.946,95％CI=0.922-0.971,P＜0.01),elevated D-dimer level(OR=2.407,95％CI=1.367-4.239,P=0.002),long-time interventional operation(OR=1.019,95％CI=1.005-1.033,P=0.009),and sheath size＞6 F(OR=4.368,95％CI=1.196-15.947,P=0.026)were the independent risk factors for PSA occurring after cardiovascular interventional surgery.Conclusion High BMI,smoking history,use of antiplatelet agents,combination use of antiplatelet and anticoagulant,the operator of the interventional procedure being an attending physician,low haemoglobin level,elevated D-dimer level,long-time interventional operation,and sheath size＞6 F are the independent risk factors for PSA occurring after cardiovascular interventional procedure,which can provide a basis for the early prevention of PSA.(J Intervent Radiol,2024,33:646-650)