●AIM:To study the changes and effect factors of posterior corneal surface after small incision lenticule extraction(SMILE)with different myopic diopters.●METHODS:Ninety eyes of 90 patients who underwent SMILE were i...●AIM:To study the changes and effect factors of posterior corneal surface after small incision lenticule extraction(SMILE)with different myopic diopters.●METHODS:Ninety eyes of 90 patients who underwent SMILE were included in this retrospective study.Patients were allocated into three groups based on the preoperative spherical equivalent(SE):low myopia(SE≥-3.00 D),moderate myopia(-3.00 D>SE>-6.00 D)and high myopia(SE≤-6.00 D).Posterior corneal surfaces were measured by a Scheimpflug camera preoperatively and different postoperative times(1wk,1,3,6mo,and 1y).Posterior mean elevation(PME)at 25 predetermined points of 3 concentric circles(2-,4-,and 6-mm diameter)above the best fit sphere was analyzed.●RESULTS:All surgeries were completed uneventfully and no ectasia was found through the observation.The difference of myopia group was significant at the 2-mm ring at 1 and 3mo postoperatively(1mo:P=0.017;3mo:P=0.018).The effect of time onΔPME was statistically significant(2-mm ring:P=0.001;4-mm ring:P<0.001;6-mm ring:P<0.001).The effect of different corneal locations onΔPME was significant except 1wk postoperatively(1mo:P=0.000;3mo:P=0.000;6mo:P=0.001;1y:P=0.001).Posterior corneal stability was linearly correlated with SE,central corneal thickness,ablation depth,residual bed thickness,percent ablation depth and percent stromal bed thickness.●CONCLUSION:The posterior corneal surface changes dynamically after SMILE.No protrusion is observed on the posterior corneal surface in patients with different degrees of myopia within one year after surgery.SMILE has good stability,accuracy,safety and predictability.展开更多
目的分析距下关节镜联合后侧小切口与跗骨窦切口在跟骨骨折患者中的应用效果。方法筛选2018年12月至2022年12月聊城市第二人民医院收治的100例跟骨骨折患者,根据随机数表法分为关节镜组和跗骨窦组各50例。关节镜组男32例,女18例,平均年...目的分析距下关节镜联合后侧小切口与跗骨窦切口在跟骨骨折患者中的应用效果。方法筛选2018年12月至2022年12月聊城市第二人民医院收治的100例跟骨骨折患者,根据随机数表法分为关节镜组和跗骨窦组各50例。关节镜组男32例,女18例,平均年龄(43.58±7.13)岁;给予距下关节镜联合后侧小切口治疗。跗骨窦组男34例,女16例,平均年龄(43.12±7.46)岁;给予跗骨窦切口治疗。对比两组手术相关指标及手术前后疼痛视觉模拟评分(visual analog score,VAS)、B hler角及Gissane角变化,术后12个月踝-后足功能优良率和并发症发生率。结果术后关节镜组随访(11.16±1.02)个月,跗骨窦组随访(11.24±1.06)个月。关节镜组住院时间和骨折愈合时间明显少于跗骨窦组(P<0.05);关节镜组术后12个月VAS评分明显低于跗骨窦组,关节镜组B hler角及Gissane角均明显高于跗骨窦组(P<0.05);相较跗骨窦组,关节镜组优良率更高(P<0.05),并发症发生率更低(P<0.05)。结论相较跗骨窦切口,距下关节镜联合后侧小切口可以明显改善跟骨骨折患者手术指标及疼痛情况,值得临床广泛推广。展开更多
基金Supported by Shandong Provincial Natural Science Foundation(No.ZR2022QH384).
文摘●AIM:To study the changes and effect factors of posterior corneal surface after small incision lenticule extraction(SMILE)with different myopic diopters.●METHODS:Ninety eyes of 90 patients who underwent SMILE were included in this retrospective study.Patients were allocated into three groups based on the preoperative spherical equivalent(SE):low myopia(SE≥-3.00 D),moderate myopia(-3.00 D>SE>-6.00 D)and high myopia(SE≤-6.00 D).Posterior corneal surfaces were measured by a Scheimpflug camera preoperatively and different postoperative times(1wk,1,3,6mo,and 1y).Posterior mean elevation(PME)at 25 predetermined points of 3 concentric circles(2-,4-,and 6-mm diameter)above the best fit sphere was analyzed.●RESULTS:All surgeries were completed uneventfully and no ectasia was found through the observation.The difference of myopia group was significant at the 2-mm ring at 1 and 3mo postoperatively(1mo:P=0.017;3mo:P=0.018).The effect of time onΔPME was statistically significant(2-mm ring:P=0.001;4-mm ring:P<0.001;6-mm ring:P<0.001).The effect of different corneal locations onΔPME was significant except 1wk postoperatively(1mo:P=0.000;3mo:P=0.000;6mo:P=0.001;1y:P=0.001).Posterior corneal stability was linearly correlated with SE,central corneal thickness,ablation depth,residual bed thickness,percent ablation depth and percent stromal bed thickness.●CONCLUSION:The posterior corneal surface changes dynamically after SMILE.No protrusion is observed on the posterior corneal surface in patients with different degrees of myopia within one year after surgery.SMILE has good stability,accuracy,safety and predictability.
文摘目的分析距下关节镜联合后侧小切口与跗骨窦切口在跟骨骨折患者中的应用效果。方法筛选2018年12月至2022年12月聊城市第二人民医院收治的100例跟骨骨折患者,根据随机数表法分为关节镜组和跗骨窦组各50例。关节镜组男32例,女18例,平均年龄(43.58±7.13)岁;给予距下关节镜联合后侧小切口治疗。跗骨窦组男34例,女16例,平均年龄(43.12±7.46)岁;给予跗骨窦切口治疗。对比两组手术相关指标及手术前后疼痛视觉模拟评分(visual analog score,VAS)、B hler角及Gissane角变化,术后12个月踝-后足功能优良率和并发症发生率。结果术后关节镜组随访(11.16±1.02)个月,跗骨窦组随访(11.24±1.06)个月。关节镜组住院时间和骨折愈合时间明显少于跗骨窦组(P<0.05);关节镜组术后12个月VAS评分明显低于跗骨窦组,关节镜组B hler角及Gissane角均明显高于跗骨窦组(P<0.05);相较跗骨窦组,关节镜组优良率更高(P<0.05),并发症发生率更低(P<0.05)。结论相较跗骨窦切口,距下关节镜联合后侧小切口可以明显改善跟骨骨折患者手术指标及疼痛情况,值得临床广泛推广。
