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find Keyword "取出困难" 2 results
  • PROCESSING STRATEGY OF DIFFICULT REMOVAL OF SCREWS IN PLATE

    ObjectiveTo investigate the countermeasures for difficult removal of screws in the plate. MethodsThe clinical data were retrospectively analyzed from 47 patients having difficult removal of screws in the plate between January 2004 and May 2014. There were 30 males and 17 females, aged 16-58 years (mean, 34 years). The time from internal fixation to removal of internal fixation was 10 months to 20 years (mean, 22 months). The locations of internal fixation were upper extremity in 25 cases and lower extremity in 22 cases. The number of difficult removal screws in the plate was 1 in 18 cases, 2 in 15 cases, 3 in 9 cases, and 4 in 5 cases. The plate types included general plate in 15 cases and locking plate in 32 cases; stainless steel plate in 10 cases and titanium plate in 37 cases. The reason for difficult removal, plate, screw, incision, and bone quality of patient were comprehensively analyzed, and different methods for difficult removal were chosen according to the principle that first simply then complicated. ResultsAll plates and screws were removed, and no iatrogenic fracture or nerve and vascular injuries occurred. The operation time was 65-270 minutes (mean, 125 minutes). The blood loss was 80-775 mL (mean, 157 mL). The postoperative drainage was 20-250 mL (mean, 92 mL). The incision healing by first intention was obtained in 39 cases, and delayed healing in 8 cases. The patients were followed up 3-24 months (mean, 10 months). No infection or re-fracture was observed. ConclusionThere are many countermeasures for difficult removal of screws in the plate, but each has indication. As long as a well arranged preoperative condition, mastering a variety of methods, and being familiar with its indication, as well as reasonably choosing method based on the specific situations, the plate and screw maybe smoothly removed.

    Release date:2016-08-25 10:18 Export PDF Favorites Scan
  • “杠杆松解”技术在股骨近端防旋髓内钉螺旋刀片取出困难时的应用

    目的 总结应用“杠杆松解”技术解决股骨近端防旋髓内钉(proximal femoral nail antirotation,PFNA)螺旋刀片取出困难的效果。方法 2015年10月—2020年10月,9例股骨转子间和/或转子下骨折PFNA内固定后,二次手术取出内固定物时发生螺旋刀片取出困难。男8例,女1例;年龄48~68岁,平均58岁。PNFA内固定术至该次取出手术时间15~23个月,平均19个月。取出内固定物原因:螺旋刀片向内穿透股骨头2例、螺旋刀片退出激惹软组织1例、患者要求取出6例。术中采用“杠杆松解”技术,通过上、下敲击连接主钉的主钉打出器,使主钉上、下滑动带动螺旋刀片松解,顺利完整取出内固定物。结果 手术时间55~128 min,平均92 min;术中出血量70~150 mL,平均108 mL;术中无医源性骨折、血管及神经损伤发生。术后切口均Ⅰ期愈合。9例患者均获随访,随访时间4~9个月,平均6个月。X线片复查显示内固定物均完整取出。末次随访时,髋关节功能 Harris 评分为 95~100 分,均获优。未出现再骨折、创伤性关节炎、术区疼痛等并发症。结论 PFNA螺旋刀片取出困难时可选择“杠杆松解”技术,是一种简单、有效的取出方法。

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