Objective To investigate the clinical effect and Practical value of percutaneous vertebroplasty using China-made bone cement. Methods Under CT or C-arm X-ray machine guided, 22 cases with vertebral osteoporotic compression fracture, hemangeoma orosteolytic carcinoma were treated by perfusion of China-made bone cement through percutaneous puncture. Results Thirty vertebraes in 22 cases were operated by percutaneous vertebroplasty and the successful rate was 100%. The symptoms in 21 cases were remarkably released, the clinical effective rate was 95.5%. During the operation, bone cement leakage occurred in 23.3% of the treated vertebrae, but no serious untoward effect appeared. Conclusion The application of China-made bone cement in percutaneous vertebroplasty is of the features of minimal invasion, safty and remarkable curative effect. It can release pain and consolidate the vertebrae.

Objective To develop the technique to detect total core antigen of HCV(Total HCV-cAg) by Enzyme-Linked Immu-nosorbent Assay (ELISA) and apply it for clinical diagnosis. Methods 201 serum samples with anti-HCV antibody were detected total HCV-cAg after pre - treating the samples, then the sensitivity of results were compared with HCV RNA tests. Among them, 176 cases was determined by FQ-PCR, and 25 cases by RT-PCR for HCV-RNA. Results HCV RNA was found in sera from 88 of 201 samples (43.8%). Total HCV-cAg was positive in 71 (35.3%) of 201 samples . There was no significant difference between the detection rate of HCV RNA by PCR and total HCV-cAg by ELISA. Conclusion Detection of total core antigen of HCV is suitable to be used as to diagnose HCV in clinic.