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Objective To analyze the statistical behavior of plantar pressure distribution, extract the characteristics of foot movement, and provide references for application of gait recognition in medical clinical diagnosis, rehabilitation training and public health. Methods The collected foot pressure data were prepossessed, statistical analysis on the data was performed, the footprint reconstruction was realized, and the pressure distribution rates of the footprints, segmented regions and each region were compared and analyzed, so as to decompose the foot motion characteristics. Results Based on the cross point of pressure peak curve in different regions, the plantar region was divided into toe region, metatarsal region, arch region and heel region, which could accurately extract the foot movement characteristics. Conclusions The peak plantar pressure is used to extract the characteristics of foot movement, which is divided into landing stage, whole foot contact stage, heel tiptoe stage and ground off stage.
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Objective:To investigate the expression and clinical significance of F0 ATP synthase C subunit (Csub) in patients with ischemic heart disease (IHD).Methods:The 101 patients with chest pain admitted to the department of emergency of the People's Hospital of Yuhuan from May 2019 to December 2020 were enrolled, including 59 patients with acute myocardial infarction (AMI) and 42 patients with unstable angina pectoris (UAP). At the same time, 50 age-matched healthy subjects in the health examination center were selected as the healthy control (HC). All patients had completed blood sampling before the intervention of drugs or other intervention measures in the emergency room. The content of serum Csub was detected by enzyme linked immunosorbent assay (ELISA), and the relationship between Csub and clinical characteristics was analyzed. At the same time, the contents of hypersensitivity cardiac troponin T (hs-cTnT) and MB isoenzyme of creatine kinase (CK-MB) in blood were detected by electrochemical luminescence. The receiver operator characteristic curve (ROC curve) was drawn to evaluate the value of Csub, hs-cTnT, and CK-MB in the early diagnosis of IHD.Results:The baseline data such as age, gender, and history of the three groups were balanced. There were significant differences in low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), CK-MB, hs-cTnT and B-type natriuretic peptide (BNP), but there were no significant differences in other biochemical indexes. The Csub content in the AMI group and the UAP group were significantly higher than those in the HC group [8.96% (6.37%, 11.53%), 4.27% (3.23%, 6.49%) vs. 1.56% (1.07%, 2.33%), both P < 0.01]. Moreover, the Csub in the AMI group with more severe myocardial ischemia was higher than UAP group [8.96% (6.37%, 11.53%) vs. 4.27% (3.23%, 6.49%), P < 0.01]. A total of 59 patients with AMI were treated with percutaneous coronary intervention (PCI). According to the median of Csub, AMI patients were subdivided into above-median group (29 cases) and below-median group (30 cases). The results showed that there were no significant differences in the number of coronary artery lesion branches, the number of stent implantation and postoperative medication between the two groups. ROC curve analysis showed that the area under the curve (AUC) and 95% confidence interval (95% CI) of Csub, hs-cTnT and CK-MB in the diagnosis of IHD were 0.98 (0.95-1.00), 0.99 (0.99-1.00), 0.94 (0.89-0.99), respectively. The diagnostic efficacy of Csub was slightly lower than that of hs-cTnT but higher than that of CK-MB. When the cut-off value of Csub was 4.74%, the sensitivity and specificity for the diagnosis of IHD were 100% and 87.0%, respectively. Conclusions:Csub increased significantly in the serum of IHD patients, and further increased with the severity of ischemia. It can be used as a new diagnostic biomarker for the diagnosis and evaluation of the development of myocardial ischemia.
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Objective To compare patellar ring,Kirschner wire tension band and patellar ring plus Kirschner wire in fixation for treatment of patella fractures.Methods A retrospective analysis was conducted on the 285 patients with patellar fracture who had been treated between September 2009 and January 2016.They were 155 men and 130 women,with an average age of 45.5 years (from 18 to 70 years).Their fractures included 176 transverse,28 longitudinal split and 81 comminuted ones.They were divided into 3 groups according to their different internal fixation methods:patellar ring fixation (98 cases),Kirschner wire tension band (92 cases),patellar ring plus Kirschner wire fixation (95 cases).The 3 groups were compared in terms of operative time,intraoperative bleeding,fracture healing time,knee function by B(o)stman score at the last follow-up and postoperative complications.Results The operative time in the patellar ring group(58.9 ±6.4 min) was significantly shorter than in the Kirschner wire group (71.8 ± 7.8 min) and in the patellar ring plus Kirschner wire group (74.4 ± 8.0 min) (P ＜ 0.05).There were no statistical significant differences between the 3 groups in fracture healing time and intraoperative bleeding (P ＞ 0.05).The good to excellent rate of knee function at the last follow-up in the Kirschner wire tension band group was 100.0％ (92/92),significantly higher than in the patellar ring group (90.8％,89/98) and in the patellar ring plus Kirschner wire group (91.6％,87/95) (P ＜ 0.017).There was no significant difference in postoperative complication rate between the patellar ring fixation group (2.0％,2/98),Kirschner wire tension band fixation group (1.1％,1/92) and the patellar ring plus Kirschner wire group (2.1％,2/95) (P ＞ 0.05).Conclusion Internal fixation with Kirschner wire tension band has definite curative effect on patellar fractures,showing the advantages of less operative invasion,fewer postoperative complications,better functional recovery of the affected knee joint,and lower price over the other 2 internal fixation methods.
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ObjectiveTo compare the clinical effect of percutaneous iliosacral screws osteosynthesis (PISO) and open reduction internal reconstruction plate fixation in treating unstable pelvic fractures combined with sacroiliac joint dislocation,and evaluate their safety and practicality.MethodsFrom March 2004 to October 2010,37 patients with vertical unstable pelvic fractures were admitted to our department.Twenty cases were treated with percutaneous sacroiliac screw fixation and 17 cases were performed opened reduction and internal reconstruction plate fixation under C-arm X-ray's guide.The perioperative parameters and postoperative imaging indexes were compared and analyzed.ResultsAll patients were followed up for 6 months to 26 months,with an average of 15 months.There were statistical significances between the PISO group and open reduction internal fixation group in operation time,blood loss,postoperative pain,mean fever time and hospital stay.The two groups showed no significant difference on postoperative X-evaluation of reduction effect.The average healing time was 3.2 months and the difference was not statistically significant between two groups.PISO group had no complications such as infection,bent nails or broken nails.ConclusionThrough compared and analyzed the two groups in treating unstable pelvic fractures,the percutaneous sacroiliac screw fixation has been proved for a kind of ideal minimally invasive surgery method because of locating exactly,less damage and blood loss,milder pain and quicker recovery.But it demands higher operation techniques.Adequate preoperative preparation and postoperative patients' cooperation can reduce complications incidence.The second group of anterior reconstruction plate or T-shape plate to fix vertically unstable pelvic fractures at same time shows a good result of stabilization.
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Objective To investigate clinical effects of arthroscopic synovectomy combined with radiofrequency vaporization for the treatment of rheumatoid synovitis of the knee joint.Methods In 36 cases of rheumatoid gonarthritis with chronic synovitis of the knee joint,with simultaneous administration of regular medication,we had applied arthroscopic synovectomy combined with radiofrequency vaporization to remove the hyperplastic synovium and pannus through standard anteromedial and anterolateral approaches, and superolateral and superomedial approaches.In 21 out of 36 cases,diseased synovium in the posterior compartment was resected via additional posteromedial and posterolateral approaches.A systematic rehabilitation program was practiced 3 days after operation. Results All the 36 cases were followed for 4~26 months(mean,16 months).Clinical effects evaluation showed "excellent" in 21 cases,"good" in 13 cases,and "fair" in 2,with a total excellent-or-good rate of 94.4%(34/36).The knee joint function scores were significantly elevated from 58.6?5.3 preoperatively to 91.6?5.8 postoperatively(t=2.723,P=0.003).The Lysholm scores were significantly elevated from 42.3?3.8 preoperatively to 90.2?4.4 postoperatively(t=2.437,P=0.001).Conclusions Combined use of arthroscopic synovectomy with radiofrequency vaporization for the treatment of rheumatoid gonarthritis has advantages of minimal trauma,little blood loss,and rapid recovery of joint function.The procedure can effectively control the progression of rheumatoid arthritis and restore the knee joint function to the greatest possible extent.