Treatment of femur supracondylar fracture with retrograde interlocking intramedullary nails in elderly patients

Objective： To report 32 cases of femur supracondylar fracture treated with retrograde interlocking intramedullary nails in elderly patients. Methods： According to the AO classification, all of 32 cases were classified as extra-articular type A. 32 cases were treated with interlocking intramedullary nail by closed insertion from intercondylar fossa of the knee. All cases accepted CPM exercise as early as possible after operation. Results： Following up 5 to 15 months, all fractures united within an average duration of 5.3 months （4-7 months）. According to the Shelbourne scale, the excellent rate of the knee function was 86.3%. Conclusion： Retrograde interlocking intramedullary nail is useful alternative implant for the treatment of osteoporotic supracondylar fracture of femur, particularly of the type A fracture in the elderly population. Its merits include stable fixation, high rate of fracture union and few complications.

Retrograde interlocking intramedullary nailing under arthroscopy for supracondylar femoral fracture

Objective: To evaluate the therapeutic effects of retrograde interlocking intramedullary nailing under arthroscopy on supracondylar femoral fractures. Methods: From June 1999 to December 2000, 17 patients with supracondylar femoral fracture were treated with arthroscopically assisted implantation of retrograde interlocking intramedullary nail and close reduction. Results: More than 6 month follow up study after operation in 11 patients revealed that the average healing time was 3 months. Average range of the knee motion for all the patients was more than 90 degrees. There was no implant breakage and infection. Conclusions: This new method, combining the advantage of arthroscope and retrograde interlocking intramedullary nail, can provide a stable and reliable fixation, and meanwhile is less invasive to the soft tissue and knee, less operative time and blood loss, minimal disruption of the blood supply in fracture site. It is conducive to the fracture healing and the functional recovery of the knee joint and worthwhile to be recommended.

Olecranon anatomy:Use of a novel proximal interlocking screw for intramedullary nailing,a cadaver study

AIM: To define the optimum safe angle of use for an eccentrically aligned proximal interlocking screw(PIS) for intramedullary nailing(IMN).METHODS: Thirty-six dry cadaver ulnas were split into two equal pieces sagitally. The following points were identified for each ulna: the deepest point of the incisura olecrani(A), the point where perpendicular lines from A and the ideal IMN entry point(D) are intersected(C) and a point at 3.5 mm(2 mm safety distance from articular surface + 1.5 mm radius of PIS) posterior from point A(B). We calculated the angle of screws inserted from point D through to point B in relation to D-C and B-C. In addition, an eccentrically aligned screw was inserted at a standard 20° through the anterior cortex of the ulna in each bone and the articular surface wasobserved macroscopically for any damage.RESULTS: The mean A-C distance was 9.6 mm(mean ± SD, 9.600 ± 0.763 mm), A-B distance was 3.5 mm, C-D distance was 12.500 mm(12.500 ± 1.371 mm) and the mean angle was 25.9°(25.9°± 2.0°). Lack of articular damage was confirmed macroscopically in all bones after the 20.0° eccentrically aligned screws were inserted. Intramedullary nail fixation systems have well known biological and biomechanical advantages for osteosynthesis. However, as well as these well-known advantages, IMN fixation of the ulna has some limitations. Some important limitations are related to the proximal interlocking of the ulna nail. The location of the PIS itself limits the indications for which intramedullary systems can be selected as an implant for the ulna. The new PIS design, where the PIS is aligned 20°eccentrically to the nail body, allows fixing of fractures even at the level of the olecranon without disturbing the joint. It also allows the eccentrically aligned screw to be inserted in any direction except through the proximal radio-ulnar joint. Taking into consideration our results, we now use a 20° eccentrically aligned PIS for all ulnas. In our results, the angle required to insert the PIS was less than 20° for only one bone. However, 0.7° difference corresponds to placement of the screw only 0.2 mm closer to the articular surface. As we assume 2.0 mm to be a safe distance, a placement of the screw 0.2 mm closer to the articular surface may not produce any clinical symptoms.CONCLUSION: The new PIS may give us the opportunity to interlock IMN without articular damage and confirmation by fluoroscopy if the nail is manufactured with a PIS aligned at a 20.0° fixed angle in relation to the IMN.

Biomechanical comparison of distal locking screws for distal tibia fracture intramedullary nailing

Background: Newer generation intramedullary (IM) tibial nails provide several distal interlocking screw options. The objectives were to determine: 1) if the new oblique interlocking option provides superior stability, 2) which screw orientation/ configuration is the most biomechanically stable, and 3) if three distal interlocking screws provide better stability. Methods: A preliminary experiment was performed in torsion, compression, and bending tests with four different screw configurations: (I) one medial-to-lateral and one oblique, (II) two me-dial-to-lateral, (III) one medial-to-lateral and one anterior-to-posterior, and (IV) one medial-to-lateral, one anterior-to-posterior and one oblique in simu-lated distal metaphyseal fracture tibiae. Twenty- four Synthes EXPERT tibial IM nails were used for six specimens of each screw configuration. Parts I and II, tibial IM nails were locked with 5.0 mm in-terlocking screws into simulated distal tibiae (PVC and composite analogue tibia). Part III, the two most stable configurations were tested using five pairs of simulated cadaveric distal tibiae metaphy-seal fractures. Results: Significant differences were attributable to distal screw orientation for intrame- dullary nailing of distal tibia fractures. Configura-tions II and IV were found to be more stable than the other two configurations. No significant differ-ence was detected in construct stability in all modes of testing between Configurations II and IV. Dis-cussion: Configuration I did not provide superior stability for the distal tibia fracture fixation. Con-figurations II and IV provided equivalent stability. When choosing IM fixation for treatment of distal tibia metaphyseal fractures two medial-to-lateral screws provide the necessary stability for satisfac-tory fixation. Clinical Relevance: This study indi-cated an option for operative treatment of distal metaphyseal tibia fracture fixation where preserva-tion of soft tissue and rigid stabilization are needed.

不同内植物固定耻骨上下支骨折生物力学特征的比较

背景:经皮逆向空心螺钉、微创经皮钢板广泛应用于单侧耻骨支骨折中,但存在误穿髋关节和损伤骨盆内侧滋养动脉等缺点。一种新型逆行耻骨上支髓内钉治疗骨盆前环骨折拥有透射次数少和手术时间短等优点,但目前缺乏上述3种内植物生物力学特征的验证。目的:通过有限元分析方法,比较在不同工况下经皮逆向空心螺钉、微创经皮钢板和逆行耻骨上支髓内钉治疗耻骨上下支骨折的生物力学差异。方法:收集1名志愿者的骨盆CT数据,将数据导入mimics 20、Geomagic Wrap 2021、Soildworks 2019中,建成3种内固定治疗单侧耻骨支骨折的几何模型,分别为空心螺钉组、钢板组、髓内钉组。分别将上述模型导入Ansys 2022软件设置垂直工况、开书样工况、剪切工况进行前处理和计算,比较分析内植物的力学稳定性。结果与结论:①在垂直工况下,空心螺钉治疗单侧耻骨骨折的生物力学稳定性较钢板和髓内钉更为优秀,其内植物应力峰值最小,其余两组对比空心螺钉组峰值增加4倍以上;②在开书样工况下,钢板治疗单侧耻骨骨折有更好的生物力学稳定性,钢板组降低耻骨上支断端应力有较好表现,其他两组的应力较钢板组增加5倍以上;③在剪切工况下,髓内钉治疗单侧耻骨骨折表现出良好的生物力学稳定性,其维持骨盆位移效果最佳,其他两组骨盆位移比髓内钉组增加了25%以上;④提示不同内植物在生物力学上存在差异性:逆行经皮空心螺钉在垂直工况下内植物应力峰值最小,微创经皮钢板在开书样工况下减小耻骨上支断端应力最优,逆行耻骨上支髓内钉在剪切工况下骨盆位移最小,可以将内植物生物力学差异性与患者临床实际情况相结合,选择最优内植物治疗方式。

顺行和逆行髓内钉治疗不同部位股骨干骨折的有限元分析

背景:髓内钉治疗股骨干骨折取得了较好的临床疗效,但仍有部分患者并发无菌性骨不连,其原因为机械性不稳定。股骨作为人体最长最大的骨骼,不同部位骨折是否具有不同的生物力学特征,及不同进钉方式对于不同部位骨折端稳定性存在何种影响均研究甚少。目的:分析顺行和逆行髓内钉治疗不同部位股骨干骨折的生物力学特点,评估最佳进钉方式,减少骨不连发生率。方法:选取一名志愿者CT资料导入Mimics 19.0和Geomagic studio 2017软件中进行提取、优化得到右侧股骨三维模型;运用Solidworks 2017软件画出顺行和逆行髓内钉模型并与不同骨折部位股骨干骨折模型按照标准手术技术装配,以STEP格式导入Abaqus 2017软件中设置材料属性参数、边界条件、施加载荷、提交运算,于可视化模块中查看结果。其中上段股骨干骨折顺行和逆行髓内钉分别为A1、A2模型,中段为B1、B2模型,下段为C1、C2模型。结果与结论:(1)A1、B1、C2模型股骨整体应力分布更为均匀,位移、骨折端间隙与成角、股骨近折端骨块内翻均更小;(2)对于上段和中段股骨干骨折,顺行髓内钉具有更好的生物力学效果;对于下段股骨干骨折,逆行髓内钉效果更优。

Results of Dynamic Interlock Nailing in Distal Tibial Fractures

A study was performed in adults to determine the efficacy of closed reduction and intramedullary nailing in dynamic mode on union, implant failure and incidence of malalignment in patients who sustained an extra-articular fracture of the distal tibia. Methods: Between January 2007 and December 2013, one hundred and twelve patients of distal tibia that involved the distal 6 cm of the tibia were treated at our hospital with reamed intramedullary nailing with use of two distal interlocking screws and one proximal screw in dynamic mode. The augmentation was done with poller screws whenever it was necessary. The nailing of fibular fractures was done in 27 cases. There were 85 males and 27 females with a mean age of 30.9 (range: 20 to 72). Eighty fractures were closed whereas 32 were grade 1 open fractures. Results: The average time to union of the closed fracture was 15.4 weeks (range: 12 – 28 weeks). The healing times for the primarily nailed compound Grade I averaged 17.8 (range: 15 - 34 weeks). After minimum follow-up of one year, rate of primary union was in 97.32%. One case of broken nail required revision surgery. There were three cases of delayed union and two cases of non union. In one case there was deep infection which required exchange nailing with antibiotic impregnated nail. There was breakage of interlocking screws in three cases but fracture had united. In twenty two cases acceptable malalignment of the tibia was observed after union. The outcome was determined at a minimum of one year in our study based on the criteria of Johner and Wruhs. Out of 112 patients, 79 patients had excellent results, 29 had good results and 4 had fair results. Conclusions: The dynamic osteosynthesis of distal tibia by interlocking nail and judicious use of poller screws is an effective alternative for the treatment of distal metaphyseal tibial fractures.

不同髓内钉内固定术在胫骨远端关节外骨折治疗中的效果比较

目的 比较不同髓内钉内固定术治疗胫骨远端关节外骨折的效果。方法 前瞻性选择2021年1月至2022年6月濮阳市人民医院骨科收治的80例胫骨远端关节外骨折患者,以随机数字表法分为A组与B组,各40例。A组接受逆行髓内钉内固定术,B组接受交锁髓内钉内固定术。比较两组术后3个月的临床疗效。比较两组围手术期指标、踝关节功能、术后并发症发生情况。结果 两组术后3个月的临床效果差异无统计学意义(P>0.05)。A组手术时间短于B组(P<0.05);两组术中出血量、骨折愈合时间差异无统计学意义(P>0.05)。术后3个月,两组踝后足功能评分(AOFAS)评分均升高,但B组低于A组(P<0.05)。B组术后并发症发生率高于A组(P<0.05)。结论 逆行髓内钉与交锁髓内钉固定术治疗胫骨远端关节外骨折均可获得理想疗效,且应用逆行髓内钉可有效缩短手术时间,并能够加速踝关节功能恢复,降低并发症发生率。

带锁髓内钉内固定术治疗四肢骨创伤骨折患者的临床有效性分析

目的:分析四肢骨创伤骨折患者应用带锁髓内钉内固定术治疗的有效性。方法:回顾性分析2020年1月—2023年12月天津市北辰医院收治的80例四肢骨创伤骨折患者资料,根据治疗方式不同将其分为对照组和研究组,各40例。对照组采用锁定加压钢板内固定术治疗,研究组采用带锁髓内钉内固定术治疗。比较两组治疗效果、临床指标、疼痛程度、患肢功能、日常生活活动情况及骨代谢情况。结果:术后3个月,研究组治疗总有效率为97.50%,高于对照组的80.00%,差异有统计学意义(P<0.05)。研究组手术时间及住院时长均短于对照组,差异均有统计学意义(P<0.05)。术后第7天,研究组疼痛程度低于对照组,差异有统计学意义(P<0.05)。术后3个月,研究组的患肢功能评分及日常生活活动情况评分均高于对照组,差异均有统计学意义(P<0.05)。术后1个月,研究组血清碱性磷酸酶、骨保护素、骨钙素及表皮生长因子含量水平均高于对照组,差异均有统计学意义(P<0.05)。结论:带锁髓内钉内固定术在治疗四肢骨创伤骨折患者中可以提高治疗总有效率,减少手术用时及住院时长,减轻患者疼痛程度,有效促进患肢功能及骨代谢情况改善,利于患者恢复日常生活活动能力。

胫骨远端骨折伴软组织损伤3种不同微创固定方式的有限元分析

背景:伴软组织损伤胫骨远端骨折的治疗一直具有挑战性,新型逆行胫骨髓内钉是一种新的选择。目前关于新型逆行胫骨髓内钉、顺行髓内钉、外置接骨板之间的生物力学性能研究未见报道。目的:通过有限元分析方法,探讨新型逆行胫骨髓内钉、顺行髓内钉、外置接骨板治疗伴软组织损伤胫骨远端骨折的生物力学稳定性,为临床应用提供科学参考。方法:利用1名42岁健康男性的胫骨CT数据,通过相关软件建立胫骨远端横行骨折的有限元模型,根据骨折的固定原则,构建新型胫骨逆行髓内钉、胫骨顺行髓内钉、外置股骨远端外侧接骨板固定有限元模型。使用ANSYS 2019软件进行网格划分、施加载荷、数据处理,比较各模型胫骨和内固定的应力分布及位移情况。结果与结论:(1)3组模型的骨折端位移量随着载荷的增大而增加;所有模式载荷中,逆行髓内钉组位移最小,外置接骨板组次之,顺行髓内钉组平均位移最大;在800 N垂直载荷中,各组位移差异有显著性意义(P<0.05);其余载荷模式下各组无显著性差异;(2)不同载荷模式下3组模型中胫骨应力均表现为胫骨中段最高,向近、远端缓慢过渡降低;胫骨干部位应力分布均呈现逆行髓内钉组最高、外置接骨板组次之、顺行髓内钉组应力最小的情况;(3)不同载荷模式下3组模型中胫骨应力集中部位的应力,外置接骨板组明显高于另外两组,差异均有显著性意义(P<0.05);(4)不同载荷条件下3组模型中固定物的应力值,外置接骨板组最大,逆行髓内钉组次之,顺行髓内钉组最小;不同载荷条件下3组固定物应力集中部位的应力差异均有显著性意义(P<0.05);(5)提示3种固定方式均具有良好的抗旋转能力及轴向稳定性,其中新型胫骨逆行髓内钉具有更好的生物力学稳定性。

闭合复位交锁髓内钉内固定治疗胫腓骨骨折患者的应用效果观察

目的探讨闭合复位交锁髓内钉内固定在胫腓骨骨折中的应用效果。方法回顾性分析2021年1月—2023年10月新疆生产建设兵团第三师医院收治的80例胫腓骨骨折患者的临床资料,根据手术方式不同将其分为对照组和观察组,每组40例。对照组采用切开复位钢板螺钉内固定术治疗,观察组采用闭合复位交锁髓内钉内固定术治疗。对比两组的临床疗效、手术情况、踝关节功能、并发症发生情况。结果术前,两组美国足与踝关节协会踝-后足评分系统评分对比,差异无统计学意义(P>0.05);观察组治疗总有效率为97.50%,高于对照组的80.00%,差异有统计学意义(P<0.05);观察组术中出血量少于对照组,手术时间、住院时间、骨痂形成时间、骨折愈合时间均短于对照组,组间差异有统计学意义(P<0.05);术后6个月,观察组美国足与踝关节协会踝-后足评分系统评分高于对照组,差异有统计学意义(P<0.05);观察组并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论闭合复位交锁髓内钉内固定治疗胫腓骨骨折的效果更佳,可缩短骨折愈合时间,加快踝关节功能恢复,且并发症发生情况较少。

两种内固定治疗胫骨中下段骨折的疗效比较

目的比较交锁髓内钉和微创经皮锁定钢板固定治疗胫骨中下段骨折的疗效。方法将100例胫骨中下段骨折患者按内固定方式不同分为交锁髓内钉组(采用交锁髓内钉固定治疗,50例)和锁定钢板组(采用微创经皮锁定钢板内固定治疗,50例)。比较两组手术情况、骨折愈合时间、术后部分负重行走时间、术后并发症发生情况、Johner-Wruhs评分、踝关节活动度、AOFAS踝-后足评分。结果患者均获得随访,时间12~15(12.26±5.63)个月。术中出血量、切口长度、住院时间:交锁髓内钉组均少(短)于锁定钢板组(P<0.01)。骨折愈合时间:交锁髓内钉组短于锁定钢板组(P<0.01)。术后部分负重行走时间:交锁髓内钉组早于锁定钢板组(P<0.01)。术后并发症发生率:交锁髓内钉组低于锁定钢板组(P<0.05)。术后12个月Johner-Wruhs评分优良率、末次随访时踝关节活动度及术后3、12个月AOFAS踝-后足评分:交锁髓内钉组均优于锁定钢板组(P<0.05)。结论与微创经皮锁定钢板内固定相比,交锁髓内钉固定治疗胫骨中下段骨折更符合力学原理,更利于骨折愈合,患者术后下地行走时间更早,并发症发生率更低,踝关节功能恢复更佳。

髓内钉与锁定钢板治疗肱骨近端骨折的有限元分析

背景:髓内钉及锁定钢板治疗肱骨近端骨折在临床中应用广泛,但其内固定方式选择尚未达成共识。目的:通过有限元分析比较髓内钉与锁定钢板治疗两部分及三部分肱骨近端骨折的生物力学稳定性。方法:收集1名志愿者肱骨CT数据,导入Minics 21.0、Geomagic Wrap、SoildWork 2017及Abaqus 2021中,建立两种内固定方式治疗两部分及三部分骨折的有限元模型,分别为A组(髓内钉固定两部分骨折)、B组(锁定钢板固定两部分骨折)、C组(髓内钉固定三部分骨折)、D组(锁定钢板固定三部分骨折),对比分析肱骨及内固定物的应力分布、位移程度及其最大值。结果与结论:①A组模型中肱骨的最大应力及最大位移值最小,D组模型中肱骨的最大应力及最大位移值最大,锁定钢板组应力主要集中在肱骨头内侧下方及螺钉孔区域,而髓内钉组应力主要集中在骨折线周围及肱骨外科颈外侧下方区域,两者位移分布无明显差异,主要集中在肱骨远端;②A组模型中髓内钉的最大应力值最小,D组模型中锁定钢板的最大应力值最大,两种内固定的最大应力均主要集中在肱骨距螺钉及与内固定连接处,锁定钢板的应力云图分布集中,而髓内钉的应力云图分布更均匀;③结果显示,相比于锁定钢板,髓内钉更具有生物力学优势,这种优势在三部分骨折中更明显。

闭合复位交锁髓内钉内固定术治疗老年肱骨近端骨折患者的效果

目的:探讨闭合复位交锁髓内钉内固定术治疗老年肱骨近端骨折患者的效果。方法:回顾性分析2021年7月至2022年6月该院收治的66例肱骨近端骨折患者的临床资料,根据治疗方案不同将其分为观察组与对照组各33例。对照组采用切开复位钢板内固定术治疗,观察组采用闭合复位交锁髓内钉内固定术治疗。比较两组围术期指标水平、术后疼痛[视觉模拟评分法(VAS)]评分、肩关节活动度、肩关节功能(Constant-Murley评分)、肱骨颈干角及并发症发生率。结果:观察组手术时间、住院时间及骨折愈合时间均短于对照组,术中出血量少于对照组,差异有统计学意义(P<0.05);观察组术后1、3个月时的VAS评分均低于对照组,肩关节外旋、上举、前屈角度均大于对照组,差异有统计学意义(P<0.05);术后1年时,对照组肱骨颈干角较术后3个月时明显减小,而观察组肱骨颈干角未明显减小,但大于对照组,差异有统计学意义(P<0.05);观察组术后3个月、1年时Constant-Murley评分均高于对照组,差异有统计学意义(P<0.05);观察组并发症发生率为6.06%(2/33),低于对照组的24.24%(8/33),差异有统计学意义(P<0.05)。结论:闭合复位交锁髓内钉内固定术治疗老年肱骨近端骨折患者可减轻手术创伤,降低术后疼痛评分和并发症发生率,缩短手术时间、住院时间和骨折愈合时间,改善肩关节活动度和肩关节功能,远期疗效优于切开复位钢板内固定术。

不同固定术治疗胫骨下段骨折的疗效

目的:探究小切口下闭合复位微创钢板固定(MIPO)术与闭合复位交锁髓内钉术治疗胫骨中下段骨折的疗效。方法:根据闭合复位方式不同将110例胫骨中下段骨折患者分为MIPO组(n=52)和髓内钉组(n=58)。MIPO组采用小切口下闭合复位MIPO术;髓内钉组采用闭合复位交锁髓内钉术。比较两组围手术期指标、内固定相关并发症及术后软组织血运情况、骨折愈合评分、Johner-Wruhs评分。结果:MIPO组手术耗时短于髓内钉组(P<0.05),术中出血量、切口长度均小于髓内钉组(P<0.05);两组术后内固定松动、断裂发生率及并发症总发生率差异均无统计学意义(P>0.05);术后1个月,MIPO组皮肤坏死、皮温低、发绀/瘀血等软组织血运不良事件总发生率低于髓内钉组(P<0.05);两组术后1个月、6个月、末次随访骨折愈合评分及末次随访Johner-Wruhs评分优良率差异均无统计学意义(P>0.05)。结论:两种固定术在骨折愈合、内固定稳定性及膝、踝关节功能恢复方面无显著差异,但小切口下闭合复位MIPO术对周围软组织损伤小,术后软组织血运恢复速度快于闭合复位交锁髓内钉术。

基于有限元仿真的髓内钉参数对儿童股骨干骨折的影响

目的研究髓内钉关键参数对儿童股骨干骨折的生物力学性能影响,为后续儿童髓内钉的几何尺寸设计及生物力学分析提供依据。方法通过Mimics建立儿童股骨模型,使用SolidWorks进行180 mm、210 mm、240 mm 3种长度的髓内钉设计,使用Ansys Workbench有限元仿真软件,分别对3种长度的髓内钉进行医用不锈钢和钛合金材料的赋值,求解出使用不同长度及材料的髓内钉进行内固定时,股骨在轴向载荷下的应力分布及位移,评估髓内钉固定股骨的稳定性和术后股骨的愈合情况。结果在同种材料下,髓内钉长度与股骨平均应力值、股骨最大位移呈负相关,即随髓内钉长度的增加,股骨平均应力值及股骨最大位移减小,稳定性更好。相同长度下,钛合金髓内钉与医用不锈钢髓内钉相比较,可适当减弱应力屏蔽效应,利于术后股骨愈合。结论本研究建立的儿童股骨及髓内钉内固定模型说明了髓内钉长度及材料对于股骨的稳定性及骨折愈合的影响,可为后续儿童髓内钉的几何尺寸初步设计及生物力学分析提供依据。

带锁髓内钉与锁定钢板内固定术治疗肱骨近端Neer二部分骨折患者的效果比较

目的:比较带锁髓内钉与锁定钢板内固定术治疗肱骨近端Neer二部分骨折患者的效果。方法:选取2021年2月至2022年2月该院收治的64例肱骨近端Neer二部分骨折患者进行前瞻性研究,按照随机数字表法将其分为观察组与对照组各32例。对照组采用锁定钢板内固定术治疗,观察组采用带锁髓内钉内固定术治疗,比较两组手术时间、术中出血量、住院时间、骨性愈合时间、ConstantMurley肩关节功能评分量表(CMS)评分、健康调查简表(SF-36)评分和并发症发生率。结果:观察组术中出血量少于对照组,住院时间和骨性愈合时间短于对照组,差异均有统计学意义(P<0.05);术后6个月,两组SF-36各维度评分高于术前,且观察组高于对照组,差异均有统计学意义(P<0.05);观察组并发症发生率为3.12%,明显低于对照组的25.00%,差异有统计学意义(P<0.05);两组手术时间和手术前后CMS评分比较,差异无统计学意义(P>0.05)。结论:带锁髓内钉内固定术治疗肱骨近端Neer二部分骨折患者可提高术后SF-36评分,缩短住院时间和骨性愈合时间,以及降低术中出血量和并发症发生率,效果优于锁定钢板内固定术治疗。

微创经皮钢板内固定术与交锁髓内钉内固定术治疗胫骨远端闭合性骨折患者的效果比较

目的:比较微创经皮钢板内固定术与交锁髓内钉内固定术治疗胫骨远端闭合性骨折患者的效果。方法:回顾性分析2021年2月至2023年2月新蔡县人民医院收治的102例胫骨远端闭合性骨折患者的临床资料,按照手术方法不同将其分为观察组和对照组各51例。对照组行交锁髓内钉内固定术治疗,观察组行微创经皮钢板内固定术治疗。比较两组围术期指标(手术时间、骨折愈合时间、住院时间)水平,手术前后踝关节功能[美国矫形足踝协会踝-后足评分法(AOFAS-AH)]评分、炎性因子[降钙素原(PCT)、C反应蛋白(CRP)]水平,以及并发症发生率。结果:两组骨折愈合时间比较,差异无统计学意义(P>0.05);观察组手术时间、住院时间均短于对照组,差异有统计学意义(P<0.05);术后1、3个月,观察组AOFAS-AH评分均高于对照组,差异有统计学意义(P<0.05);术后3 d,观察组PCT、CRP水平均低于对照组,差异有统计学意义(P<0.05);两组并发症发生率比较,差异无统计学意义(P>0.05)。结论:微创经皮钢板内固定术治疗胫骨远端闭合性骨折患者可缩短手术时间和住院时间,提高踝关节功能评分,降低炎性因子水平,效果优于交锁髓内钉内固定术治疗。

带锁髓内钉内固定术与加压钢板内固定术对四肢创伤性骨折后骨不连患者的治疗效果比较

目的 对比四肢创伤性骨折后骨不连采用带锁髓内钉内固定术、加压钢板内固定术进行治疗的效果。方法 选择66例四肢创伤性骨折后骨不连患者,采用随机数字表法分为对照组与观察组,每组33例。对照组患者行加压钢板内固定术治疗,观察组患者行带锁髓内钉内固定术治疗。比较两组手术疗效、手术指标、术后恢复指标、术后并发症发生情况、运动功能、生活能力和膝关节功能。结果 观察组患者手术优良率90.91%(30/33)高于对照组的63.64%(21/33)(P<0.05)。观察组患者手术用时(131.50±15.50)min、切口长度(15.30±2.50)cm、术后住院时间(10.50±1.50)d、患肢恢复时间(22.05±2.20)周短于对照组的(164.50±16.05)min、(18.30±3.30)cm、(15.50±1.50)d、(35.50±2.50)周,术中出血量(365.50±22.50)ml少于对照组的(453.50±30.60)ml(P<0.05)。观察组患者术后并发症发生率6.06%低于对照组的24.24%(P<0.05)。治疗后,两组患者运动功能、生活能力、膝关节功能评分均高于治疗前,且观察组高于对照组(P<0.05)。结论 带锁髓内钉内固定术治疗四肢创伤性骨折后骨不连具有较高的安全性与有效性,手术损伤小、恢复快,能促进患者运动功能、生活能力、膝关节功能恢复。

闭合复位交锁髓内钉内固定治疗胫骨多段骨折的临床效果

目的:探讨闭合复位交锁髓内钉内固定治疗胫骨多段骨折的临床效果。方法:选取2017年1月—2022年12月北京丰台医院收治的120例胫骨多段骨折患者作为研究对象,以随机数字表法分为对照组和观察组,各60例。对照组采取切开复位交锁髓内钉内固定治疗,观察组采取闭合复位交锁髓内钉内固定治疗。比较两组治疗效果。结果:观察组手术时间短于对照组,切口长度短于对照组,术中出血量少于对照组,术后下床时间、骨痂形成时间、骨折愈合时间早于对照组,差异有统计学意义(P<0.001)。观察组治疗优良率高于对照组,差异有统计学意义(P<0.001)。结论:闭合复位交锁髓内钉内固定治疗胫骨多段骨折的临床效果较好,具有手术时间短、切口小、术中出血量少、患者术后恢复速度快等优势。