[目的]探讨全角度复位固定治疗小粗隆二分型难复性股骨粗隆间骨折(irreducible intertrochanteric fractures of the femur,IRIFF)的临床疗效。[方法]2020年1月—2022年12月18例小粗隆二分型IRIFF患者,采用冠状位钳夹联合矢状位撬拨全...[目的]探讨全角度复位固定治疗小粗隆二分型难复性股骨粗隆间骨折(irreducible intertrochanteric fractures of the femur,IRIFF)的临床疗效。[方法]2020年1月—2022年12月18例小粗隆二分型IRIFF患者,采用冠状位钳夹联合矢状位撬拨全角度辅助复位髓内钉内固定治疗。评价临床及影像结果。[结果]本组患者手术时间(39.7±7.0)min,术中出血量(124.7±50.0)mL。患者均获(11.7±2.1)个月随访。1例因头钉切割行半髋关节置换。随术前,术后4周和末次随访的时间推移,VAS评分[(6.4±1.1),(2.8±1.5),(0.7±1.1),P<0.001]、髋关节Harris评分[(37.9±8.3),(71.6±10.8),(92.7±10.3),P<0.001]、髋伸屈ROM[(5.3±4.4)°,(67.4±13.0)°,(97.2±13.0)°,P<0.001]均显著改善。影像方面,与术前相比,术后4个月及末次随访时,患髋关节颈干角[(76.5±8.2)°,(129.1±4.9)°,(125.1±7.0)°,P<0.001]显著增大,与术后4周相比,末次随访时,尖顶距无显著变化(P>0.05),17例患者骨折一期愈合,骨折愈合时间为(6.6±1.5)个月。[结论]全角度辅助复位技术内固定治疗小粗隆二分型IRIFF,复位固定满意,临床疗效确切。展开更多
The genesis mechanism of low-resistivity oil formation in the medium-deep Shahejie Formation of Bohai C Oilfield is unclear,and there is a lack of effective methods for identifying low-resistivity oil layers.This arti...The genesis mechanism of low-resistivity oil formation in the medium-deep Shahejie Formation of Bohai C Oilfield is unclear,and there is a lack of effective methods for identifying low-resistivity oil layers.This article conducts a comprehensive analysis based on core sample experiments,and research shows that the formation of low-resistivity oil layers in the oilfield is mainly caused by the superposition of three factors:1)microcapillary development,high irreducible water;2)additional conductive effect of clay;3)deep invasion of high salinity mud filtrate.The low-resistivity oil layer in this oilfield is mainly characterized by high mud content and strong additional conductivity of clay,and the complex pore throat structure leads to high irreducible water saturation,and the impact of saline mud intrusion,resulted in low-resistivity oil layers.The oil-field is mainly a lightweight oil layer with hydrophilic wettability,studying the response characteristics of oil and water layers through core nuclear magnetic resonance experiments,effectively identifying low-resistivity oil layers based on the correlation between resistivity and physical properties.展开更多
WITHDRAWAL:Zhang,J.J.,Guo,Y.Q.,Qin,Z.Y.,Wei,C.T.,Hu,Q.H.,Vandeginste,V.,Miao,H.Y.,Yao,P.,and Zhang,P.F.,“Predicting Irreducible Water Saturation of Unconventional Reservoirs by Using NMR T2 Spectra:Methods of Morphol...WITHDRAWAL:Zhang,J.J.,Guo,Y.Q.,Qin,Z.Y.,Wei,C.T.,Hu,Q.H.,Vandeginste,V.,Miao,H.Y.,Yao,P.,and Zhang,P.F.,“Predicting Irreducible Water Saturation of Unconventional Reservoirs by Using NMR T2 Spectra:Methods of Morphological Division and Fractal Models”,Acta Geologica Sinica-English Edition(Accepted Article):https://doi.org/10.1111/1755-6724.15094.展开更多
文摘[目的]探讨全角度复位固定治疗小粗隆二分型难复性股骨粗隆间骨折(irreducible intertrochanteric fractures of the femur,IRIFF)的临床疗效。[方法]2020年1月—2022年12月18例小粗隆二分型IRIFF患者,采用冠状位钳夹联合矢状位撬拨全角度辅助复位髓内钉内固定治疗。评价临床及影像结果。[结果]本组患者手术时间(39.7±7.0)min,术中出血量(124.7±50.0)mL。患者均获(11.7±2.1)个月随访。1例因头钉切割行半髋关节置换。随术前,术后4周和末次随访的时间推移,VAS评分[(6.4±1.1),(2.8±1.5),(0.7±1.1),P<0.001]、髋关节Harris评分[(37.9±8.3),(71.6±10.8),(92.7±10.3),P<0.001]、髋伸屈ROM[(5.3±4.4)°,(67.4±13.0)°,(97.2±13.0)°,P<0.001]均显著改善。影像方面,与术前相比,术后4个月及末次随访时,患髋关节颈干角[(76.5±8.2)°,(129.1±4.9)°,(125.1±7.0)°,P<0.001]显著增大,与术后4周相比,末次随访时,尖顶距无显著变化(P>0.05),17例患者骨折一期愈合,骨折愈合时间为(6.6±1.5)个月。[结论]全角度辅助复位技术内固定治疗小粗隆二分型IRIFF,复位固定满意,临床疗效确切。
文摘The genesis mechanism of low-resistivity oil formation in the medium-deep Shahejie Formation of Bohai C Oilfield is unclear,and there is a lack of effective methods for identifying low-resistivity oil layers.This article conducts a comprehensive analysis based on core sample experiments,and research shows that the formation of low-resistivity oil layers in the oilfield is mainly caused by the superposition of three factors:1)microcapillary development,high irreducible water;2)additional conductive effect of clay;3)deep invasion of high salinity mud filtrate.The low-resistivity oil layer in this oilfield is mainly characterized by high mud content and strong additional conductivity of clay,and the complex pore throat structure leads to high irreducible water saturation,and the impact of saline mud intrusion,resulted in low-resistivity oil layers.The oil-field is mainly a lightweight oil layer with hydrophilic wettability,studying the response characteristics of oil and water layers through core nuclear magnetic resonance experiments,effectively identifying low-resistivity oil layers based on the correlation between resistivity and physical properties.
文摘WITHDRAWAL:Zhang,J.J.,Guo,Y.Q.,Qin,Z.Y.,Wei,C.T.,Hu,Q.H.,Vandeginste,V.,Miao,H.Y.,Yao,P.,and Zhang,P.F.,“Predicting Irreducible Water Saturation of Unconventional Reservoirs by Using NMR T2 Spectra:Methods of Morphological Division and Fractal Models”,Acta Geologica Sinica-English Edition(Accepted Article):https://doi.org/10.1111/1755-6724.15094.
