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Objective:To introduce a modified stent technique of nasal septal extension graft (SEG) with auricle cartilage, and to explore its effect on rhinoplasty.Methods:For 116 patients that underwent rhinoplasty, the cartilage of bilateral auricula was sutured with shell alignment and the dovetail was modified to prepare SEG stent; PTFE or silicone prosthesis was used for nasal dorsal graft. The patients were follow up for 6-18 months after surgery. A number of indicators including length of nose, tip projection, nasal tip and nasolabial angle morphology were used to assess surgical outcomes.Results:The 116 patients obtained satisfactory appearance immediately after operation. Length of nasal extension was 3-6 mm, tip projection was extended by 2-5 mm. Following up for 6-18 months showed stable effect (0.5-1.5 mm retraction) and satisfactory nose tip and nasolabial angle. The skin color was normal. No deformity occured in the ear cartilage donor area existed with no obvious scar.Conclusions:The modified SEG stent of auricle cartilage has good support and stability. It has a good effect on the slight and moderate extension of the short nose. In addition, the elevation of the nasal tip and the severe short nose of the first rhinoplasty and secondary rhinoplasty with mild contracture are also improved.
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Objective To compare and analyze the application of ultrasound and magnetic resonance ( M R) examination in evaluating the progress of hemophilia arthropathy( HA ) . Methods Forty‐three cases of HA patients treated in our hospital were collected and divided into observation group and control group according to with or without synovial hyperplasia by ultrasonography at the beginning of the observation period . At the beginning and end of the observation period , ultrasound and M R examinations were performed respectively . T wo imaging findings of the target joint were recorded and scored by ultrasound and M R . T wo types of imaging findings were compared and statistically analyzed . Results T here were positive linear correlations between the ultrasonic score and M R score at the beginning and the end of the observation period ( r ＝ 0 .945 ,0 .943 ; all P ＜ 0 .01 ) . However , there were significant differences in hemosiderin deposition and subarticular bone erosion ( all P ＜0 .05) . A t the end of the observation period , the level of synovial thickening ,the degree of cartilage erosion ,the degree of bone erosion ,the score of ultrasonic joint and M R score were significantly higher than those in the observation period , and the difference were statistically significant compared with the control group ( all P ＜0 .05) . T herefore ,synovial membrane hyperplasia can be considered as the key clinical manifestation leading to rapid progress of hemophilia target joint . Ultrasound measurement of synovial thickness ,ultrasonic score and M R score can be used as a method to predict the progress of the target joint disease . T he areas under the ROC curve were 0 .829 ,0 .897 , 0 .894 , and the cut‐off values were 2 .25 mm , 3 .5 score and 3 .5 score , respectively . Conclusions Ultrasound and MR imaging have a good correlation in evaluating HA .Significant synovial thickening of target joint indicates that HA will continue to progress .
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Objective To design a new mattress according to clinical requirement and to observe its effect of reducing the time of changing sheets, weighing, saving nursing time of artificial posture and decreasing the extent of the drop in the temperature of the baby incubator. Methods Functional requirements and parameters of new-type mattress were designed through searching and summing up a large number of literatures concerned. The standard premature infant models weighing 1500 g were selected as the experimental object. 180 cases in the experimental group were placed in the insulation incubators of the new-type mattress, and 180 cases in the control group were placed in incubators with ordinary mattresses. Results The new-type mattress has the function of designing the shape of bird's nest, changing posture automatically and monitoring physique in real time. Volume data and equipped with skull-sensing headphones. Simulation experiment displayed that the time of changing sheets between the new mattress and the ordinary mattress was (4.04 ± 0.41) s and (18.07 ± 2.54) s, and the weighing time was 1.00 s and (37.93 ± 5.19) s. The daily nursing time of artificial posture was 0.00s and (5.40 ± 0.48) s and (0.08 ± 0.23)℃and (2.08 ± 0.57)℃. The difference was statistically significant(t=-151.74-45.36, P<0.05). Conclusion The new mattress can reduce the time of weighing weight and changing sheets, save the nursing time of artificial posture and decrease the extent of the drop in the temperature of the baby incubator .