Reliability Fuzzy Comprehensive Evaluation based on construction monitoring long-span arch truss

The steel roof of the West Stand structure in Jiangmen Sports Center is a super-span space steel tube truss arch structure. In this article, the simulation analysis, and construction monitoring process, and the arch foot deformation monitoring is researched systematically, and the fuzzy reliability analysis is established based on the construction monitoring process. The monitoring results show that the roof structure is in healthy state, and the arch foot deformation meets the design requirements, which means that detailed simulation calculation provides theoretical basis for construction monitoring, and the measured data agree well with the theoretical data. Reliability Fuzzy Comprehensive Evaluation of structural monitoring adopts a layered weighting method by dividing the entire structural monitoring into several types of key monitoring indicators, corresponding analysis is carried out according to the calculation formula of the weight of various indicators to solve the reliability problem of structural monitoring. It is shown through analysis that this method can provide an effective basis for on-site safety construction, and the above conclusions can provide references for related projects in the future.

A Deep-Learning Approach for Foot-Type Classification Using Heterogeneous Pressure Data

The human foot is easily deformed owing to the innate form of the foot or an incorrect walking posture. Foot deformations not only pose a threat to foot health but also cause fatigue and pain when walking; therefore, accurate diagnoses of foot deformations are required. However, the measurement of foot deformities requires specialized personnel, and the objectivity of the diagnosis may be insufficient for professional medical personnel to assess foot deformations. Thus, it is necessary to develop an objective foot deformation classification model. In this study, a model for classifying foot types is developed using image and numerical foot pressure data. Such heterogeneous data are used to generate a fine-tuned visual geometry group-16 (VGG16) and K−nearest neighbor (k-NN) models, respectively, and a stacking ensemble model is finally generated to improve accuracy and robustness by combining the two models. Through k-fold cross-validation, the accuracy and robustness of the proposed method have been verified by the mean and standard deviation of the f1 scores (0.9255 and 0.0042), which has superior performance compared to single models generated using only numerical or image data. Thus, the proposed model provides the objectivity of diagnosis for foot deformation, and can be used for analysis and design of foot healthcare products.

Results of the treatment of congenital clubfoot and its relapses in children: outcomes of 8-year surgical practical work

Objective: to evaluate the results of minimally invasive surgical treatment of congenital idiopathic clubfoot and its relapses in children. Material and methods. The results of the treatment of 78 children with congenital idiopathic clubfoot (main group) over the period of 2010-2018 were analyzed in comparison with the results of the treatment of 41 children with relapsed congenital clubfoot, the primary treatment of which had been performed before 2010 (comparison group). Results. It has been found that in the treatment of congenital clubfoot using the Ponseti method relapses occur in no more than 21.79 % cases, and in traditional treatment - in 57.74% cases. The surgical treatment of the relapses using the Ponseti method is to perform release operations on the tendon-ligament apparatus from minimally invasive accesses, whereas cases of rigid chronic deformities require extensive releases on soft tissues, as well as resection-arthrodesis interventions on the joints of the foot. Conclusion. In the treatment of children with congenital clubfoot using the Ponseti method, the rate of relapses is twice as low as that in the application of traditional methods. Relapses in the treatment of congenital clubfoot in children occur mainly at the age of 5. Repeated relapses of foot deformation after the performance of minimally invasive operations did not occur during the study.

Pes calcaneus deformity in children and methods of surgical correction

Introduction. Pes calcaneus deformity is a rare pathology in children, which is due to the defect of long flexors of the foot caused by various neurological diseases. The treatment choice is based on the patient’s age, parameters of neuromuscular disorders, and degree of foot deformation. Aim. This study aimed to analyze the results of operative correction of рes calcaneus deformities in children. Material and methods. This analysis of surgical treatment involved 13 patients (21 feet) aged 1.5 to 15 years with рes calcaneus deformities. The different approaches and methods of surgical treatment were described. Children up to 12 years old were released joints of the foot with the elimination of deformation and tendon-muscle transposition with the transfer of functionally preserved muscles in the position of fallen muscle antagonists. Children over 12 years old underwent surgery on the bone apparatus of foot: three-articular arthrodesis or corrective osteotomy of the calcaneus, some cases were supplemented with tendon-muscle transpositions. Results. Treatment results were evaluated based on the radiometric parameters on the system of AOFAS. All treated patients showed improvement in foot stability with reduced deformation; АОFAS at an average of 91.14 points was observed. Conclusion. A record of all causes and strain components with a graded approach eliminates the pes calcaneus deformity in the long-term, despite persistent violation of neuromuscular conduction.