0.05).There was not remarkable relativity between HVA.IMA and AB/CD in normal feet,but there is remarkable relativity in hallux valgus feet.[Conclusion].The fist metatarsal sesamoids system plays an important role in the pathogensis of hallux valgus.

Objective To investigate the status and trends of prostate cancer mortality in China.Methods Prostate cancer data between 1998 and 2008 from the National Cancer Registration Center were collected,including the mortality of prostate cancer,the cumulative probability of dying from prostate cancer of males aged 0-74,composition and age-specific mortality.Comparing and analysing the status and trends of the mortality between urban and rural men.Results In 2008,the mortality of prostate cancer of chinese men was 4.07/100 000,the world's population age-standardized mortality rate was 2.44/100 000.The mortality cumulative risk of males aged 0-74 was 0.18％,accounting for 1.78％ of the mortality of men's malignant tumors.The mortality of urban males was about 2.7 times of that in rural areas.The results of age-specific mortality showed that the mortality of chinese males over the age of 70 ranked lth in the males genitourinary tumor.The average annual growth rate during 1998-2008 was 8.44％.The growth mortality rate of urban men with prostate cancer was higher than in rural areas,it was 2.49/100 000 and 0.96/100 000,but the average annual growth rate was lower than rural males,it was 7.86％ and 8.28％.The proportion of high age group was increased significantly in the age composition of the mortality over time.Conclusions In recent years,the mortality of prostate cancer has showed a obvious growth trend in China.Prostate cancer impacts Chinese men's health seriously.

BACKGROUND: Dynamic hip screw (DHS) is a standard internal fixation for intertrochanteric fracture, whereas the patient combined with osteoporosis, cut-out incidence of lag screw is common. The articles in China and abroad indicate bone cement augmentation of DHS to achieve firm fixation. As for normal bone, no reports is published that whether bone cement augmentation is effective.OBJECTIVE: To investigate the biomechanics of DHS with bone cement augmentation for the fixation of intertrochanteric fracture specimen that has a normal bone density.DESIGN, TIME AND SETTING: Bilateral contrast observation study of the same sample was performed in the Laboratory of Biomechanics, Hebei Orthopaedic Research Institute (Shijiazhuang, Hebei Province, China) between March and April In 2005.MATERIALS: Bilateral upper femora from the embalmed male cadaver were provided by Anatomy Department of Hebei Medical University (China). X-ray scan results proved the absence of tuberculosis, anatomical deformity and tumor.METHODS: Twenty-four matched pairs of the upper femora (48 sides) were used to make the specimens of the intertrochanteric fracture of type A2. The right femur specimens were fixed with DHS augmented by bone cement, as the augmentation group (The screw track of femoral neck was expended by curette, and the femoral head facing upwards were injected with 2mL low viscosity bone cement. Then lag screw was wrested to keep the position unchanged till the bone cement coagulated. Placing barrel, compressing through tighten tail screw, and cortical screw fixing side-plate were. followed). And the left femur specimen was fixed with DHS conventional fixation, as the control group. The bending and torsional tests were performed in the two groups.MAIN OUTCOME MEASURES: The maximum load and the maximum torque in the two groupsRESULTS: The maximum load and the maximum torque were (3852.1602±143.6031) N and (15.5+2.6) Nm in the augmentation group, and (3702.9667±133.8601) N and (14.7±3.4) Nm in the control group. There was no significant difference in the biomechanical effects between the two groups (P>0.05).CONCLUSION: The augmenting fixation with bone cement for intertrochanteric fracture specimen has no significant effect on the strength of DHS fixation or on the overall stability of the fractured bone in normal bone density.

Objective To evaluate the effects of post-operation rehabilitation treatment of patients with calcaneus fracture by dynamic plantar pressure analysis,and assess the value of the Footscan system.Methods Sixty-two patients with unilateral calcaneus fracture were randomly divided into a rehabilitation group and a control group.The patients in the rehabilitation group were given early,systemic standard rehabilitation treatment,while those in the control group took functional exercise following the doctors'advice.At 3 months and 6 months after operation,the plantar pressure distribution of the patients in both groups was analyzed with the Footscan system,respectively.Results After 3 months of treatment.there was statistically significant difference between the injured and the uninjured sides in both groups,with regard to the contact time,average plantar pressure and pressure-time integrals at different phases of gait.However,there was no significant difference between the injured and the uninjured sides after 6 months in rehabilitation group.But in control group,there was still statistically significant difference between the two sides with regard to the above parameters.Conclusion Early rehabilitation treatment could significantly improve the function outcome of patients with calcaneus fracture.Footscan System can objectively evaluate the recovery of the calcaneous fracture.

Objective To evaluate the effect of different degrees of pubic symphysis diastasis on the stress distribution of posterior pelvic ring. Methods Eight embalmed pelvis and articulated proximal 1/3 of the femurs were harvested for this study. The samples were positioned as both legs standing straight and loaded to 600 N on the on the CSS-44020 biomechanical machine. The strain gages were adhered to 38 sites distributed symmetrically on the two sides of sacroiliac joint, anterior sacrum and posterior ilium. The strain gages were connected to WS3811 digital strainometer to record strain changes of the intact pelvic ring and at 1,2, 2.5 cm of pubic symphysis diastasis. Results Elastic changes occurred in the cortical bone of the pelvis under 600 N load. The symmetrical sites had similar strain changes without significant difference in the intact pelvic ring and at 1,2, 2.5 cm of pubic symphysis diastasis ( P ＞0.05 ). The sites with more strain changes were distributed on the iliofemoral arch in the intact pelvis.The strain changes were increased significantly frona the posterolateral sites to the iliofemoral arch. But the strain changes on the iliofemoral arch were decreased significantly during pubic symphysis diastasis.Conclusion The conduction of vertical load runs along the sacrofemoral arch in the intact pelvic ring and redistributes posterolaterally during pubic symphysis diastasis.

Objective To investigate the creatinine level of wound drainage and the changes of serum creatinine after radical nephrectomy or partial nephrectomy in patients with renal cell carcinoma,to explore the feasibility of testing creatinine level to predict urine leakage after surgery and to compare the influence on rcnal function after different kinds of operations.Methods 65 patients data were analyzed,in which 31 patients had undergone partial nephrectomy and 34 had radical nephrectomy for renal cell carcinoma from March 2012 to July 2012.The level of creatinine in serum and wound drainage were detected within 24 hours after surgery.Also,the serum creatinine were redetected 3 months later.Results The creatinine level of wound drainage were significantly lower than that in serum in both groups [(99.94±21.10) μmol/L vs (114.61± 25.09) μmol/L,P =0.000].Urine leakage was observed in only one patient (2.9 ％) after partial nephrectomy,which his level of creatinine in serum and wound drainage was 107 μmol/L and 686μmol/L,respectively.The other 30 patients' creatinine level of wound drainage were also significantly lower than serum after partial nephrectomy [(92.90±26.21) μmol/L vs (99.83±28.77) μmol/L,P =0.021).Although the level of creatinine in the wound drainage was not significantly different between these two groups (P =0.239),the serum creatinine was statistical lower in partial nephrectomy group than that of radical nephrectomy group (P =0.035).Also,after three months,the partial nephrectomy group had a lower level of serum creatinine [(81.43±12.82) μmol/L vs (106.53±21.73) μmol/1,P =0.001].Conclusion Partial nephrectomy has advantages in protecting renal function when compared with radical nephrectomy.The level of creatinine in wound drainage is significantly lower than serum.The level of creatinine in wound drainage is a predictive indicator for diagnosing urine leakage.

Objective:To investigate the knowledge of Sixth Chinese national consensus report on the management of Helicobacter pylori infection ( treatment excluded) (hereinafter referred to as sixth national consensus) and 2022 Chinese national clinical practice guideline on Helicobacter pylori eradication treatment (hereinafter referred to as the guideline)among medical staff from general hospitals in Hainan. Methods:From February 20 to May 7, 2023, a questionnaire survey on the diagnosis and treatment of Helicobacter pylori ( H. pylori) infection was conducted among 1 463 medical staff from 15 general hospitals in Hainan Province. The questionnaire was drawn up according to the sixth national consensus and the guideline, covering knowledge of 6 sections, induding H. pylori related diseases, detection of H. pylori, eradication, prevention and influence factors of eradication of H. pylori, etc. Chi-square test was used for statistical analysis. Results:A total of 1 463 valid questionnaires were collected with the effective responsive rate of 100.00%.The 1 463 subjects included 225 gastroenterologists and 1 238 other medical staff(including 503 physicians from other departments, 264 surgeons and 471 medical technologists and pharmacists). About 78.67%(177/225)of gastroenterologists agreed that the overall infection rate of H. pylori in China was more than 20%, the awareness rate was higher than that of other medical staff (physicians from other departments 65.41%(329/503), surgeons 61.74%(163/264), medical technologists and pharmacists 60.30%(284/471); the following datas were sorted by this position), and the difference was statistically significant ( χ2=30.97, P<0.001). About 51.11%(115/225) of gastroenterologists considered that H. pylori serological antibody test could not be used as a diagnostic method for current infection, the awareness rate was higher than that of other medical staff(22.07%(111/503), 14.02%(37/264), 12.31%(58/471)), and the difference was statistically significant( χ2 =152.66, P<0.001). Proton pump inhibitor and potassium-competitive acid blocker should be discontinued for 2 weeks, and antibiotics and bismuth should be discontinued for 4 weeks before urea breath test, and the awareness rates of gastroenterologists were higher than those of other medical staff (38.67%(87/225) vs. 23.26%(117/503), 19.70%(52/264), 18.47%(87/471); 60.89%(137/225) vs. 26.64%(134/503), 25.76%(68/264), 23.78%(112/471)), and the differences were statistically significant ( χ2 =133.70 and 165.51, both P<0.001). For refractory H. pylori infection, 98.67%(222/225)of gastroenterologists agreed with the individualized diagnosis and treatment of H. pylori infection should be guided by bacterial culture, antibiotic susceptibility test or drug resistance gene test, and the awareness rate was higher than that of other medical staff (91.85%(462/503), 93.56%(247/264), 93.21%(439/471)), and the difference was statistically significant( χ2=20.55, P=0.002). About 70.67% (159/225) of gastroenterologists recommended a bismuth containing quadruple regimen, 80.44% (181/225) supported a 10 to 14 day H. pylori eradication course, and the awareness rates were higher than other medical staff (46.92%(236/503), 33.33%(88/264), 32.91%(155/471); 67.20%(338/503), 59.09%(156/264), 53.93%(254/471)), and the differences were statistically significant ( χ2=111.25 and 59.99, both P<0.001). The understanding rates of the sixth national consensus and the guideline in gastroenterologists was 85.33% (192/225), which was higher than that of other medical staff (64.21%(323/503), 66.67%(176/264), 57.96%(273/471)), and the difference was statistically significant ( χ2=85.47, P<0.001). Conclusions:Gastroenterologists from general hospitals in Hainan Province have a better understanding of the sixth national consensus and the guideline than other medical staff. However, there is still a lack of deep understanding of the sixth national consensus and the guideline, and it is necessary to further strengthen the learning and application of the sixth national consensus and the guideline.