Objective To investigate stress changes follo wing application of Gamma nail in mod ally body.Method Gamma nail was placed femur in isolated intertrochanter f racture.Pressure test was made usin g Almighty Material Te...Objective To investigate stress changes follo wing application of Gamma nail in mod ally body.Method Gamma nail was placed femur in isolated intertrochanter f racture.Pressure test was made usin g Almighty Material Testing machine under static and dynamic state and standing with single leg to learn about secondary fracture,bending of ma chine,flexion,penetration of femo ral head,disjunction of fracture li ne and so on.The results were compared with those of goose head nail fixationa and normal femur.Result Under static pressure,Gamma nail ca n better endure pressure of 2000N compared wi th goose head nail,disjunction of fr acture line was less than 0.9mm for Ga mma nail.There was no evident difference in moving down of the femo ral head between Gamma nail and goose head nail.Gamma nail can endure body weight.Conclusion Gamma nail is designed based on mechanics,and can endure body weitht and be applied for various intertrochanter fra cture.展开更多
BACKGROUND The traditional Gamma3 nail is a mainstream treatment for femoral intertrochanteric fractures.Literature reports that the Gamma3U-blade system can increase the stability of the Gamma3 nail and reduce compli...BACKGROUND The traditional Gamma3 nail is a mainstream treatment for femoral intertrochanteric fractures.Literature reports that the Gamma3U-blade system can increase the stability of the Gamma3 nail and reduce complication incidence.However,comparative studies between the Gamma3U-blade and Gamma3 systems are limited;hence,this meta-analysis was performed to explore the clinical efficacy of these two surgical methods.AIM To investigate the clinical efficacy of Gamma3 and Gamma3 U-blade for intertrochanteric fractures.METHODS A computerized search for Chinese and English literature published from 2010 to 2022 was conducted in PubMed,Cochrane,CNKI,Wanfang,and VIP databases.The search keywords were gamma 3,gamma 3 U blade,and intertrochanteric fracture.Additionally,literature tracking was performed on the references of published literature.The data were analyzed using Revman 5.3 software.Two individuals checked the inputs for accuracy.Continuous variables were described using mean difference and standard deviation,and outcome effect sizes were expressed using ratio OR and 95%confidence interval(CI).High heterogeneity was considered at(P<0.05,I2>50%),moderate heterogeneity at I2 from 25%to 50%,and low heterogeneity at(P≥0.05,I2<50%).RESULTS Following a comprehensive literature search,review,and analysis,six articles were selected for inclusion in this study.This selection comprised five articles in English and one in Chinese,with publication years spanning from 2016 to 2022.The study with the largest sample size,conducted by Seungbae in 2021,included a total of 304 cases.Statistical analysis:A total of 1063 patients were included in this meta-analysis.The main outcome indicators were:Surgical time:The Gamma3U blade system had a longer surgical time compared to Gamma3 nails(P=0.006,I2=76%).Tip-apex distance:No statistical significance or heterogeneity was observed(P=0.65,I2=0%).Harris Hip score:No statistical significance was found,and low heterogeneity was detected(P=0.26,I2=22%).Union time:No statistical significance was found,and high heterogeneity was detected(P=0.05,I2=75%).CONCLUSION Our study indicated that the Gamma3 system reduces operative time compared to the Gamma3 U-blade system in treating intertrochanteric fractures.Both surgical methods proved to be safe and effective for this patient group.These findings may offer valuable insights and guidance for future surgical protocols in hip fracture patients.展开更多
目的分析动力髋螺钉(dynamic hip screw,DHS)和Gamma钉在老年股骨粗隆间骨折中的治疗选择和临床疗效。方法对70例老年股骨粗隆间骨折分别行手术治疗,其中DHS内固定49例,Gamma钉内固定21例。比较两组术中和术后多项相关指标(如手术时间...目的分析动力髋螺钉(dynamic hip screw,DHS)和Gamma钉在老年股骨粗隆间骨折中的治疗选择和临床疗效。方法对70例老年股骨粗隆间骨折分别行手术治疗,其中DHS内固定49例,Gamma钉内固定21例。比较两组术中和术后多项相关指标(如手术时间、切口长度、术中出血量、术后引流量、X线暴露次数等),并行统计学分析。结果Gamma钉组与DHS组相比较术中出血量、切口长度差异均具有显著性(P<0.05);Gamma钉组与DHS组相比较在手术中X线暴露次数增多(P<0.05);而Gamma钉组与DHS组术后引流量、骨折愈合时间、手术时间比较差异无显著性(P>0.05)。结论只要适应证掌握得当,合理选择内固定,手术操作规范,DHS和Gamma钉治疗老年股骨粗隆间骨折均可以获得相同良好的临床效果,而Gamma钉手术创伤较小,更适用于高龄患者。展开更多
目的:比较采用动力髋螺钉(dynamic hip screw,DHS)、Gamma钉和股骨近端髓内钉(proximal femoral nail,PFN)治疗老年股骨转子间骨折的术中情况、术后并发症及疗效。方法:2001年2月-2005年5月,分别采用DHS(DHS组,56例)、Gamma钉(Gamma钉组...目的:比较采用动力髋螺钉(dynamic hip screw,DHS)、Gamma钉和股骨近端髓内钉(proximal femoral nail,PFN)治疗老年股骨转子间骨折的术中情况、术后并发症及疗效。方法:2001年2月-2005年5月,分别采用DHS(DHS组,56例)、Gamma钉(Gamma钉组,20例)和PFN(PFN组,51例)治疗并随访老年股骨转子间骨折患者127例。比较3组患者手术情况、术后并发症及功能恢复情况。结果:各组间手术时间两两比较均有显著差异(P<0．01),DHS组最长,PFN组最短。Gamma钉组和PFN组术中出血量少于DHS组(P<0．01)。DHS组发生术后髋内翻、肢体短缩及并发症总数多于Gamma钉组和PFN组(P<0．01)。DHS组、Gamma钉组和PFN组优良率分别为82．14％、85．00％和90．20％,组间疗效差异不显著(P>0．05)。结论:应用DHS、Gamma钉和PFN治疗老年股骨转子间骨折,在疗效方面无明显差异。Gamma钉和PFN可缩短手术时间、减少术中出血量及术后并发症。展开更多
文摘Objective To investigate stress changes follo wing application of Gamma nail in mod ally body.Method Gamma nail was placed femur in isolated intertrochanter f racture.Pressure test was made usin g Almighty Material Testing machine under static and dynamic state and standing with single leg to learn about secondary fracture,bending of ma chine,flexion,penetration of femo ral head,disjunction of fracture li ne and so on.The results were compared with those of goose head nail fixationa and normal femur.Result Under static pressure,Gamma nail ca n better endure pressure of 2000N compared wi th goose head nail,disjunction of fr acture line was less than 0.9mm for Ga mma nail.There was no evident difference in moving down of the femo ral head between Gamma nail and goose head nail.Gamma nail can endure body weight.Conclusion Gamma nail is designed based on mechanics,and can endure body weitht and be applied for various intertrochanter fra cture.
基金Supported by The Clinical Medical Science and Technology Development Fund Project of Jiangsu University,No.JLY2021185.
文摘BACKGROUND The traditional Gamma3 nail is a mainstream treatment for femoral intertrochanteric fractures.Literature reports that the Gamma3U-blade system can increase the stability of the Gamma3 nail and reduce complication incidence.However,comparative studies between the Gamma3U-blade and Gamma3 systems are limited;hence,this meta-analysis was performed to explore the clinical efficacy of these two surgical methods.AIM To investigate the clinical efficacy of Gamma3 and Gamma3 U-blade for intertrochanteric fractures.METHODS A computerized search for Chinese and English literature published from 2010 to 2022 was conducted in PubMed,Cochrane,CNKI,Wanfang,and VIP databases.The search keywords were gamma 3,gamma 3 U blade,and intertrochanteric fracture.Additionally,literature tracking was performed on the references of published literature.The data were analyzed using Revman 5.3 software.Two individuals checked the inputs for accuracy.Continuous variables were described using mean difference and standard deviation,and outcome effect sizes were expressed using ratio OR and 95%confidence interval(CI).High heterogeneity was considered at(P<0.05,I2>50%),moderate heterogeneity at I2 from 25%to 50%,and low heterogeneity at(P≥0.05,I2<50%).RESULTS Following a comprehensive literature search,review,and analysis,six articles were selected for inclusion in this study.This selection comprised five articles in English and one in Chinese,with publication years spanning from 2016 to 2022.The study with the largest sample size,conducted by Seungbae in 2021,included a total of 304 cases.Statistical analysis:A total of 1063 patients were included in this meta-analysis.The main outcome indicators were:Surgical time:The Gamma3U blade system had a longer surgical time compared to Gamma3 nails(P=0.006,I2=76%).Tip-apex distance:No statistical significance or heterogeneity was observed(P=0.65,I2=0%).Harris Hip score:No statistical significance was found,and low heterogeneity was detected(P=0.26,I2=22%).Union time:No statistical significance was found,and high heterogeneity was detected(P=0.05,I2=75%).CONCLUSION Our study indicated that the Gamma3 system reduces operative time compared to the Gamma3 U-blade system in treating intertrochanteric fractures.Both surgical methods proved to be safe and effective for this patient group.These findings may offer valuable insights and guidance for future surgical protocols in hip fracture patients.
文摘目的分析动力髋螺钉(dynamic hip screw,DHS)和Gamma钉在老年股骨粗隆间骨折中的治疗选择和临床疗效。方法对70例老年股骨粗隆间骨折分别行手术治疗,其中DHS内固定49例,Gamma钉内固定21例。比较两组术中和术后多项相关指标(如手术时间、切口长度、术中出血量、术后引流量、X线暴露次数等),并行统计学分析。结果Gamma钉组与DHS组相比较术中出血量、切口长度差异均具有显著性(P<0.05);Gamma钉组与DHS组相比较在手术中X线暴露次数增多(P<0.05);而Gamma钉组与DHS组术后引流量、骨折愈合时间、手术时间比较差异无显著性(P>0.05)。结论只要适应证掌握得当,合理选择内固定,手术操作规范,DHS和Gamma钉治疗老年股骨粗隆间骨折均可以获得相同良好的临床效果,而Gamma钉手术创伤较小,更适用于高龄患者。
文摘目的:比较采用动力髋螺钉(dynamic hip screw,DHS)、Gamma钉和股骨近端髓内钉(proximal femoral nail,PFN)治疗老年股骨转子间骨折的术中情况、术后并发症及疗效。方法:2001年2月-2005年5月,分别采用DHS(DHS组,56例)、Gamma钉(Gamma钉组,20例)和PFN(PFN组,51例)治疗并随访老年股骨转子间骨折患者127例。比较3组患者手术情况、术后并发症及功能恢复情况。结果:各组间手术时间两两比较均有显著差异(P<0．01),DHS组最长,PFN组最短。Gamma钉组和PFN组术中出血量少于DHS组(P<0．01)。DHS组发生术后髋内翻、肢体短缩及并发症总数多于Gamma钉组和PFN组(P<0．01)。DHS组、Gamma钉组和PFN组优良率分别为82．14％、85．00％和90．20％,组间疗效差异不显著(P>0．05)。结论:应用DHS、Gamma钉和PFN治疗老年股骨转子间骨折,在疗效方面无明显差异。Gamma钉和PFN可缩短手术时间、减少术中出血量及术后并发症。
