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Objective @#To evaluate the implementation, application, and problems and suggestions of the Radiation Shield- ing Requirements in Room of Radiotherapy Installations—Part 1: General Principle (GBZ/T 201.1—2007) through a survey of relevant personnel in radiation health technical service institutions, and to provide a scientific basis for further revision and implementation of this standard.@*Methods@#A questionnaire survey was conducted among randomly selected per- sonnel in radiation health technical services across China, which mainly investigated the awareness, training, application, and revision suggestions related to the GBZ/T 201.1—2007. The results were aggregated and analyzed.@*Results@#A total of 184 evaluation questionnaires on the GBZ/T 201.1—2007 were collected from technical service staff in 25 provinces. Among the responders, 64.1% thought that the standard had been widely applied; 91.8% thought that the standard could meet work needs; only 54.3% ever received relevant training on the standard; 68.5% used the standard once or more per year; 33.7% thought that the standard needed to be revised.@*Conclusion@#The personnel in radiation health technical services have a high awareness rate of the GBZ/T 201.1—2007 and its contents, but their familiarity with and application of the standard need to be improved. Relevant departments should strengthen the training and promotion of the standard, and part of the standard should be revised.
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Objective To investigate the clinical effect internal fixation combined with external fixator incision in the treatment of intra-articular fractures of the distal radius.Methods 80 cases of intra-articular distal radius fracture patients underwent cut internal fixation combined with external fixator in the treatment of orthopedic were chosen,postoperative rehabilitation exercises,fracture healing after the removal of the external fixator.All patients were followed up for 8 months to 12 months,an average of 9.2 months.Results 80 patients were intraarticular fractures healed,the time required was 4 to 10 months,an average of 6.3 months.In accordance with the assessment of functional systems Dienst wrist,51 cases wrist function were excellent,21 cases were good,the good rate was 90％ (72/80).There were no clinical fractures common complication after surgery.Conclusion Open internal fixation combined with external fixator treatment of intra-articular fractures of the distal radius fractures not only makes reduction of fracture and immobilization satisfaction,but also conducive to the wrist of early postoperative functional rehabilitation exercise.
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Objective To investigate the effect of improved bone plate fixation and bone grafting in the treat ment of intra-articular calcaneal fracture.Methods 80 patients with intra-articular calcaneal fractures were randomly divided into the two groups.The non-bone graft group(47 feet in 40 patients)was given improved bone plate fixation.The bone graft group(50 feet in 40 patients)was given improved bone plate fixation and bone grafting.Results The incidence rate of complication in the non-bone graft group was 25.0％ and that in the bone graft group was 19.1％.The difference between the two groups was not significant(x2 =0.21,P ＞ 0.05).Postoperative Bhler's angle and calcaneal height between the two groups had significant differences (t =14.5,16.99,all P ＜ 0.05).The excellent rate of Maryland functionality in non-bone graft group was 66.0％,which was significantly lower than 86.0％ in the bone graft group(x2 =5.38,P ＜ 0.05).The average full weight bearing time between the two groups had significant difference (t =11.17,P ＜ 0.05).Bhler's angle after 1 year and forwa rd Bhler's angle loss of the non-bone graft group had significant differences compared with the bone graft group (t =29.76,9.81,all P ＜ 0.05).Conclusion Improved bone plate fixation and bone grafting in the treatment of intra-articular calcaneal fracture can obtain better results and avoid the long-term loss of reduction.
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Objective To investigate the curative effect for lumbar spondylolisthesis by posterior lumbar intervertebral compression bone graft fusion and pedicle screw internal fixation.Method All 39 cases with lumbar spondylolisthesis accepted treatment during January 2003 to October 2007.There were cataplasia spondylolisthesis in 14 cases and isthmic spondylolisthesis in 25 cases.Twenty-two cases had spondylolisthesis in L4 and 17 cases had spondylolisthesis in L5.According to Meyerding grading,11 patients were classified as degree Ⅰ lesion.27 patients as degree Ⅱ lesion and 1 patient as degree Ⅲ lesion.By the help of X-ray machine,pedicle screw Was embedded in the vertebral spondylolisthesis and it Was lower vertebra.Laminectomy decompress was administered in vertebral spondylolisthesis and hold-down bars was placed to open intervertebral space.Then restored the vertebral spondylolisthesis and fixed it temporary.Next,intervertebral compression bone graft fusion was finished and was adjusted.Results Follow-up period was 5 months to 4 years.Clinical outcomes were measured with Prolo evaluation scale,35 cases were cured,4 cases were good effect.Conclusions This operation has been found to be asafe,rapid and effective method for lumbar spondylolisthesis and it produces a high fusion rate and lower expense.
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Objective To investigate the experiences of total hip replacement in the treatment of different types of osteoarthritis secondary to acetabular dysplasia, and evaluate its effect. Methods From January 1999 to December 2006, 37 hips in 35 cases with osteoarthritis secondary to acetabular dysplasia undergoing total hip replacement were included in this study. Preoperative Harris score was 30-64 points, with an average score of 45 points. Undergoing total hip replacement with complete release, of soft tissue, original acetabular, and no femoral osteotomy. Crowe Ⅰ , Ⅱ-type acetabular dysplasia chose conventional cementless press-fit prosthesis;Crowe Ⅲ,Ⅳ-type,chose the appropriate trumpet,Zweymüller system cementless acetabular biconical spiral surface and thin and straight SL rectangular hip stems. Results The duration of follow-up ranged from 12 to 60 months (average 24 months). No case appeared dislocation, periprosthetic fractures, femoral nerve and sciatic nerve injury and other complications, no clinical and X-ray findings of prosthesis loosening occurred. Postoperative Harris score was 60-95 points, and average was 85 points. Conclusion Adequate preoperative preparation, intraoperative complete release, is the key of the treatment and restoration of limb length.