Objective To compare the clinical evaluative value of ultrasound and X-ray in the healing of clavicle fractures in children.Methods A total of 52 pediatric patients with closed complete clavicle fractures were selected.Dynamic monitoring was conducted three times using both ultrasound and X-ray examination after the fracture was confirmed.Ultrasound examination was performed after each X-ray examination.Ultrasound was used to conduct multi-sectional exploration and record the fracture conditions(such as angulation and displacement of the fracture ends),and surrounding soft tissue injuries(such as muscle soft tissue tears or swelling,and hematoma formation).The time of first callus appearance,and the morphology of the callus(including primarily the length,thickness and echo changes of the callus)were recorded and compared with X-ray findings.Results Fifty-two cases(100％)with X-ray plain film showed interruption of the cortical bone continuity,50 cases(96.2％)with ultrasound images showed interrupted and discontinuous of the cortical bone echo,while 2 cases(3.8％)were not definitively diagnosed as fractures.On the 7th day after the fracture,ultrasound detected callus formation in 10 patients(19.2％),while X-ray detected callus formation in 3 patients(5.8％),with a statistically significant difference(P＜0.05).On the 14th day after the fracture,ultrasound detected callus formation in 35 patients(67.3％),while X-ray detected callus formation in 25 patients(48.1％),with a statistically significant difference(P＜0.05).On the 3 5 th day after the fracture,ultrasound detected callus formation in 45 patients(86.5％),and X-ray detected callus formation in 47 patients(90.4％),with no statistically significant difference(P＞0.05).There was no statistically significant difference between ultrasound and X-ray in measuring the length and thickness of the callus(P＞0.05).Conclusion Musculoskeletal ultrasound examination can be used as a potential auxiliary method to evaluate fracture healing in children.

Objective To compare the clinical evaluative value of ultrasound and X-ray in the healing of clavicle fractures in children.Methods A total of 52 pediatric patients with closed complete clavicle fractures were selected.Dynamic monitoring was conducted three times using both ultrasound and X-ray examination after the fracture was confirmed.Ultrasound examination was performed after each X-ray examination.Ultrasound was used to conduct multi-sectional exploration and record the fracture conditions(such as angulation and displacement of the fracture ends),and surrounding soft tissue injuries(such as muscle soft tissue tears or swelling,and hematoma formation).The time of first callus appearance,and the morphology of the callus(including primarily the length,thickness and echo changes of the callus)were recorded and compared with X-ray findings.Results Fifty-two cases(100％)with X-ray plain film showed interruption of the cortical bone continuity,50 cases(96.2％)with ultrasound images showed interrupted and discontinuous of the cortical bone echo,while 2 cases(3.8％)were not definitively diagnosed as fractures.On the 7th day after the fracture,ultrasound detected callus formation in 10 patients(19.2％),while X-ray detected callus formation in 3 patients(5.8％),with a statistically significant difference(P＜0.05).On the 14th day after the fracture,ultrasound detected callus formation in 35 patients(67.3％),while X-ray detected callus formation in 25 patients(48.1％),with a statistically significant difference(P＜0.05).On the 3 5 th day after the fracture,ultrasound detected callus formation in 45 patients(86.5％),and X-ray detected callus formation in 47 patients(90.4％),with no statistically significant difference(P＞0.05).There was no statistically significant difference between ultrasound and X-ray in measuring the length and thickness of the callus(P＞0.05).Conclusion Musculoskeletal ultrasound examination can be used as a potential auxiliary method to evaluate fracture healing in children.

Objective:To explorethe the clinical manifestations, treatment and prognosis of anastomotic pseudoaneurysm after renal transplantation caused by infection.Methods:Clinical data of 1 recipient with pseudoaneurysm after renal transplantation due to Pseudomonas aeruginosa infection were retrospectively analysed and combined with a literature review. Results:At Month 2 post-transplantation, the recipient developed right lower abdominal pain, and contrast-enhanced ultrasound examination showed a pseudoaneurysm at the artery anastomosis. Anti-infection and anti-rejection therapy had no obvious effect, and therefore next surgical exploration was performed. A size4.0 cm×3.5cm pseudoaneurysm was found intraoperatively at the graft renal artery anastomosis.After graft was evaluated as having no preservation value, the transplanted kidney and pseudoaneurysm were resected. Bacterial culture indicated Pseudomonas aeruginosa infection.The recipient recovered well and waited for next transplantation. Conclusions:Pseudoaneurysm of transplanted kidney is a very rare complication after renal transplantation, and caused by infection of Pseudomonas aeruginosa is more rarer, It has not been reported in mainland China.This type of recipient has the characteristics of high graft inactivation rate and high mortality rate. Timely surgical resection can effectively prevent the deterioration of disease.

Recent molecular biology studies have shown that some biomarkers may be useful in the diagnosis, prognosis, and evaluation of curative effects of renal cell carcinoma in clinical settings. Some of these biomarkers, including carbonic anhydrase Ⅸ (CA Ⅸ), B7-H1, insulin-like growth factor Ⅱ mRNA-binding protein 3 (IMP3), have been proven to be independent predictors for renal cell carcinoma.