Proximal Femur Bionic Nail (PFBN): A Panacea for Unstable Intertrochanteric Femur Fracture

With the aging population,intertrochanteric femur fracture in the elderly has become one of the most serious public health issues and a hot topic of research in trauma orthopedics.Due to the limitations of internal fixation techniques and the insufficient mechanical design of nails,the occurrence of complications delays patient recovery after surgical treatment.Design of a proximal femur bionic nail(PFBN)based on Zhang’s N triangle theory provides triangular supporting fixation,which dramatically decreases the occurrence of complications and has been widely used for clinical treatment of unstable intertrochanteric femur fracture worldwide.In this work,we developed an equivalent biomechanical model to analyze improvement in bone remodeling of unstable intertrochanteric femur fracture through PFBN use.The results show that compared with proximal femoral nail antirotation(PFNA)and InterTan,PFBN can dramatically decrease the maximum strain in the proximal femur.Based on Frost’s mechanostat theory,the local mechanical environment in the proximal femur can be regulated into the medium overload region by using a PFBN,which may render the proximal femur in a state of physiological overload,favoring post-operative recovery of intertrochanteric femur fracture in the elderly.This work shows that PFBN may constitute a panacea for unstable intertrochanteric femur fracture and provides insights into improving methods of internal fixation.

Comparison of Clinical Effect of PFNA and Internal Fixation with Anatomical Locking Plate of Proximal Femur in Treatment of Intertrochanteric Fracture of Femur

Purpose:To investigate the clinical value of proximal femoral nail antirotation and anatomical locking plate of proximal femur in the treatment of intertrochanteric fracture of femur.Methods:The study group is treated with PFNA internal fixation.The control group is treated by internal fixation with anatomical locking plate of proximal femur.Results:The time of operation,the amount of intraoperative bleeding and the time of fracture healing in the study group are significantly less than those in the control group.The incidence rate of complication in the study group(3.23%)is significantly lower than that in the control group(17.2%).Data comparison shows P<0.05.Conclusion:The curative effect and prognosis for patients with intertrochanteric fracture of femur treated by PFNA internal fixation are more ideal.

Comparison of Clinical Effect of PFNA and Internal Fixation with Anatomical Locking Plate of Proximal Femur in Treatment of Intertrochanteric Fracture of Femur

Purpose To investigate the clinical value of proximal femoral nail antirotation and anatomical locking plate of proximal femur in the treatment of intertrochanteric fracture of femur.Methods The study group is treated with PFNA internal fixation.The control group is treated by internal fixation with anatomical locking plate of proximal femur.Results The time of operation,the amount of intraoperative bleeding and the time of fracture healing in the study group are significantly less than those in the control group.The incidence rate of complication in the study group(3.23%)is significantly lower than that in the control group(17.2%).Data comparison shows P<0.05.Conclusion The curative effect and prognosis for patients with intertrochanteric fracture of femur treated by PFNA internal fixation are more ideal.

Clinical and functional comparison of dynamic hip screws and intramedullary nails for treating proximal femur metastases in older individuals

Objective:To compare the outcomes of dynamic hip screws(DHS)and intramedullary nailing(IMN)in the treatment of extra-capsular metastatic carcinoma of the proximal femur.Methods:A retrospective case analysis method was used to examine data of patients with proximal metastatic cancer of the femur who were treated with internal fixation in Department of Orthopaedics,Beijing Friendship Hospital,from January 2007 to December 2018.Blood loss,postoperative pain,functional score,length of stay,and survival rates were compared,and postoperative complications were assessed.Results:Complete follow-up data were available for 33 patients.The mean follow-up period was 12.2±3.6(range:9-32)months and the average age was 72.3±4.7(range:59-83)years old.There were 20 females and 13 males.Twenty-three patients had undergone IMN and 10 DHS,according to bone defects and the patient’s overall condition.The median survival time was 10 months in the IMN group and 11 months in the DHS group.Duration of surgery(t=-7.366,P<0.001)and length of hospital stay(t=-3.509,P<0.001)differed significantly between the two groups.There was one case of breakage of internal fixation in the IMN group.Conclusions:There was no significant difference between DHS and IMN in terms of surgical efficacy.IMN and DHS were different in terms of surgical time and hospital stay.However,due to the limited number of cases in this study,multi-factor analysis has not been performed and needs to be further verified in future analysis.When developing a surgical plan,it is recommended to consider the patient’s condition and the surgeon’s experience.

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.

Conversion hip arthroplasty for failed nailing of intertrochanteric fracture: Reflections on some important aspects

In this editorial,I present my comments on the article by Solarino et al.Conversion hip arthroplasty,which is an optional salvage procedure performed following unsuccessful fixation of intertrochanteric femur fractures in elderly pati-ents,entails more complex processes and higher rates of operative complications than primary arthroplasty.Hence,it is important to consider the appropriateness of the primary treatment choice,as well as the adequacy of nailing fixation for intertrochanteric fractures.This article briefly analyzes the possible factors contributing to the nailing failure of intertrochanteric fractures and attempts to find corresponding countermeasures to prevent fixation failures.It also analyzes the choice of treatment between nailing fixation and primary arthroplasty for intertrochanteric fractures.

Risk Assessment of Retrograde Intramedullary Nailing for Proximal Humeral Fracture

In proximal humeral fracture except AO classification 11A1, fixations with a locking plate and nails are recommended. We performed mechanical tests to investigate whether retrograde intramedullary nailing has fixation stability comparable to those of anterograde intramedullary nailing and locking plate which achieve clinically favorable outcomes. In retrograde intramedullary nailing, a nail entry point is made in the diaphysis, for which reduction of stiffness of the humerus is of concern. Thus, we investigated the influence of a nail entry point made in the diaphysis on humeral strength. Retrograde intramedullary nailing had fixation stability against bending and a force loaded in the rotation direction comparable to those of anterograde intramedullary nail and locking plate. Displacement by the main external force loaded on the humerus, compressive load, was less than half in the bone fixed by retrograde intramedullary nailing compared with that in the bone fixed with a locking plate, showing favorable fixation stability. It was clarified that stiffness of the humerus against rotation and a load in the compression direction is not reduced by a nail entry point made by retrograde intramedullary nailing.

PFNA2 versus 95 Degree Condylar Blade Plate in the Management of Unstable Trochanteric Fractures

Purpose: The proximal femoral nail anti-rotation (PFNA) is known to have advantages in enhancing the anchorage ability of internal fixation in elderly unstable osteoporotic intertrochanteric fracture patients. However whether it is superior to condylar blade fixation is not clear. This study aimed to determine which treatment has better clinical outcomes in older patients. Materials and Methods: A total of 86 patients over the age of 60 with unstable trochanteric fractures within the past 3 weeks, were included in this prospective study conducted from June 1, 2018, to May 31, 2021. All the intertrochanteric fractures were classified according to AO/OTA classification. Among them, 44 cases were treated with the Proximal Femoral Nail (PFNA2) with or without an augmentation screw, and 42 cases were treated with the Condylar Blade Plate. In addition, the operative time, intraoperative blood loss, intraoperative and postoperative blood transfusion, postoperative weight-bearing time, hospitalization time, Harris score of hip function, Kyle’s criteria and postoperative complications were compared between the two groups. Results: The mean duration of surgery for the PFN group was 66.8 minutes (on average), whereas for the condylar blade plate group, it was 99.30 minutes (on average). The PFNA2 group experienced less blood loss (average of 80 mL) compared to the condylar blade plate group (average of 120 mL). Union and partial weight-bearing occurred earlier in the PFNA2 group (14.1 weeks and 10.6 weeks, respectively) compared to the Condylar blade plate group (18.7 weeks and 15.8 weeks). In two patients from the PFNA2 group, screw backing out and varus collapse complications were encountered;however, these patients remained asymptomatic and did not require revision surgery. In two other patients, screw cut out and breakage of the nail at the helical screw hole leading to non-union of the proximal femur were observed during the nine-month follow-up, necessitating revision surgery with prosthetic replacement. Among the condylar blade plate group, three patients experienced complications, including blade breakage at the blade and plate junction. In two cases, the fracture united in varus, and in one case, the blade cut through, resulting in non-union of the femoral head, which required revision surgery. According to the Harris hip score and Kyle’s criteria, a good-excellent outcome was observed in 92.85% of cases in the PFNA2 group and 90.90% of cases in the condylar blade plate group. Conclusion: Both the Proximal Femoral Nail A2 and Condylar blade plate are effective implants for the treatment of unstable trochanteric fractures. The intramedullary implant promotes biological healing and allows for early ambulation with minimal complications. Similarly satisfactory restoration of anatomy and favorable radiological and functional results can be achieved with the biological fixation provided by the 95-degree condylar blade plate. However, the use of PFNA2 internal fixation technique has the advantage of less trauma in elderly patients than the 95-degree condylar blade plate.

Finite Element Analysis of Coronal Shear Fractures of the Femoral Neck: Displacement of the Femoral Head and Effect of Osteosynthetic Implants

Coronal shear fractures of the femoral neck (CSFF) are the most challenging to treat among proximal femur fractures, directly affecting the life expectancy of patients with osteoporosis. However, an adequate osteosynthesis method has not been elucidated yet. This study investigated the displacement direction of the femoral head fragment and its effect on the bone using finite element method. A finite element model for CSFF was developed from CT image data of a patient with osteoporosis using Mechanical Finder (ver. 11). Subsequently, finite element analyses were performed on six osteosynthesis models under maximum load applied during walking. The compressive stresses, tensile stresses, and compressive strains of each model were examined. The results suggested that the compressive and tensile stress distributions were concentrated on the anterior side of the femoral neck. Compressive strain distribution in the femoral head and neck was concentrated in four areas: at the tip of the blade or lag screw, the anteroinferior side of the blade or lag screw near the fracture site, and the upper right and lower left near the junction of the blade or lag screw and nail. Thus, the distribution of both these stresses revealed that the femoral head fragment was prone to anterior and inferior displacement. Distribution of compressive strains revealed the direction of the stress exerted by the osteosynthetic implant on the bone. The same results were observed in all osteosynthetic implants;thus, the findings could lay the foundation for developing methods for placing osteosynthetic implants less prone to displacement and the osteosynthetic implants themselves. In particular, the study provides insight into the optimal treatment of CSFF.

交锁髓内钉内固定术对胫骨远端关节外骨折患者HSS、AOFAS评分的影响

目的探究交锁髓内钉(IMN)内固定术对胫骨远端关节外骨折患者美国特种外科医院(HSS)评分、美国足踝外科医生协会评分系统(AOFAS)评分的影响。方法选择2018年1月至2021年1月于我院就诊的100例胫骨远端关节外骨折患者作为研究对象,按照治疗方案差异性将其分为对照组与观察组,每组50例。对照组给予微创经皮钢板固定术(MIPPO)治疗,观察组给予IMN内固定术治疗。比较两组的治疗效果。结果两组的手术时间、愈合时间、住院时间以及术中出血量无显著差异(P>0.05)。观察组的术前等待时间、下地负重时间明显短于对照组(P<0.05)。治疗6个月后,两组的踝关节背屈度数、胫骨对线度数无显著差异(P>0.05)。两组的并发症总发生率无显著差异(P>0.05)。治疗1个月后,观察组的HSS、AOFAS评分高于对照组(P<0.05)。结论IMN内固定术有利于促进胫骨远端关节外骨折患者短期膝、踝关节功能恢复,可缩短患者术前等待时间以及术后下地负重时间,降低并发症发生风险,安全性尚可。

髋关节囊周围神经阻滞与髂筋膜间隙阻滞对老年股骨粗隆间骨折患者镇痛效果的对比研究

目的 探讨髋关节囊周围神经(pericapsular nerve group, PENG)阻滞与髂筋膜间隙阻滞(fascia iliaca compartment block, FICB)对老年股骨粗隆间骨折(intertrochanteric femur fracture, IFF)患者股骨近端防旋髓内钉(proximal femoral nail anti-rotation, PFNA)内固定术的镇痛效果。方法 选取2022年1—12月首都医科大学附属北京积水潭医院老年IFF患者60例,随机分为P组和F组,每组各30例。P组采用PENG阻滞,F组采用FICB。两组患者均接受椎管内麻醉进行手术,术后均给予患者静脉自控镇痛(patient controlled intravenous analgesia, PCIA)。比较两组患者不同时点(T1,神经阻滞前;T2,神经阻滞后30 min;T3,术后6 h;T4,术后24 h;T5,术后48 h)静息和运动时的视觉模拟评分(visual analogue score, VAS)、术后补救镇痛率、镇痛满意度评分、住院时间、PCIA按压次数及不良反应发生率。结果 60例患者中,男23例,女37例,年龄65~85岁,平均(70.6±6.0)岁。两组T2~T5时点静息和运动时VAS均低于T1时点,差异均有统计学意义(P <0.05);两组静息和运动时所有时点VAS、术后补救镇痛率、镇痛满意度评分、住院时间、PCIA按压次数及不良反应发生率的比较,差异均无统计学意义(P>0.05)。结论 PENG阻滞与FICB均可缓解老年IFF患者PFNA内固定术的镇痛,且镇痛效果相当。

顶棒支撑法复位髓内钉固定治疗难复性股骨转子间骨折的临床效果

目的分析顶棒支撑法复位髓内钉固定治疗难复性股骨转子间骨折的临床效果。方法于2020年8月至2022年8月在南阳市中心医院收集病例展开研究,将严格按照纳排标准筛选的106例难复性股骨转子间骨折患者作为研究对象,根据随机数字表法分为研究组与对照组,各53例。对照组接受切开或有限切开复位结合髓内钉固定治疗,研究组接受顶棒支撑法复位髓内钉固定。统计对比两组患者围手术期情况、骨折复位质量、术后恢复情况;对比两组患者术前、术后6个月髋关节功能评分;对比两组并发症发生率。结果研究组手术时间、骨折复位时间较对照组短,手术出血量较对照组少(P<0.05)。研究组骨折复位质量优于对照组(P<0.05)。研究组骨折愈合、开始负重和住院时间较对照组短(P<0.05)。术后6个月,两组髋关节功能评分均较术前提高,研究组高于对照组(P<0.05)。研究组并发症发生率[5.66%(3/53)]较对照组[18.87%(10/53)]低(P<0.05)。结论采用顶棒支撑法复位髓内钉固定治疗难复性股骨转子间骨折可减轻对机体的创伤,降低并发症发生率,提高复位效果,促进骨折愈合和髋关节功能恢复。

股骨近端防旋髓内钉治疗高龄股骨粗隆间骨折的临床效果

目的分析高龄股骨粗隆间骨折患者应用股骨近端防旋髓内钉治疗的价值。方法80例高龄股骨粗隆间骨折患者,按照随机数字表法分为观察组和对照组,每组40例。对照组采取常规髓内钉固定治疗,观察组采取股骨近端防旋髓内钉治疗。比较两组患者手术指标(切口长度、手术时间、术中出血量)、骨折愈合时间、术后开始负重时间以及不同时间点髋关节功能Harris评分、下肢Fugl-Meyer评测法(FMA)评分。结果观察组切口长度(4.24±0.36)cm短于对照组的(13.51±0.11)cm,手术时间(108.56±12.15)min、骨折愈合时间(12.26±1.11)周、术后开始负重时间(12.26±1.57)周均短于对照组的(134.16±11.51)min、(16.58±1.74)周、(16.62±1.52)周,术中出血量(152.16±14.15)ml少于对照组的(219.65±13.68)ml(P<0.05)。观察组治疗后3个月、6个月、1年的髋关节功能Harris评分分别为(66.52±2.14)、(81.56±1.11)、(86.25±1.27)分,较对照组的(61.28±3.26)、(72.26±2.46)、(79.85±2.46)分明显更高(P<0.05)。观察组治疗后3个月、6个月、1年的下肢FMA评分分别为(18.62±2.13)、(24.13±2.41)、(26.63±1.27)分,较对照组的(15.24±1.39)、(20.16±2.11)、(22.13±2.17)分明显更高(P<0.05)。结论高龄股骨粗隆间骨折采用股骨近端防旋髓内钉治疗可显著提高治疗效果,缩短术后康复时间,对提高髋关节与下肢功能有重要作用,值得临床广泛推广。

髌上入路和髌下入路髓内钉内固定治疗胫骨骨折的效果

目的:探讨髌上入路和髌下入路髓内钉内固定治疗胫骨骨折的效果。方法:选取2019年1月—2023年10月靖江市人民医院收治的60例胫骨骨折患者为研究对象。根据随机抽签将其分为对照组和观察组,各30例。对照组给予髌下入路髓内钉内固定,观察组给予髌上入路髓内钉内固定。比较两组围手术期指标,术前及术后膝关节功能,并发症。结果:观察组手术时间及术后消肿时间、住院时间、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)。术后3个月,观察组功能、活动度、肌力、屈曲畸形评分均高于对照组,差异有统计学意义(P<0.05)。观察组术后并发症发生率低于对照组,差异有统计学意义(P<0.05)。结论:治疗胫骨骨折可采取髓内钉固定术方式,选择髌上入路相较髌下入路效果更佳,可促进患者术后膝关节功能的恢复,且减少并发症。

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。

不同方法治疗老年股骨转子间不稳定骨折疗效对比

目的对比分析生物型加长柄关节置换与股骨近端防旋髓内钉内固定治疗老年股骨转子间不稳定骨折的临床效果。方法选取2019年6月至2021年6月安阳市第三人民医院收治的104例老年股骨转子间不稳定骨折患者作为研究对象,根据不同手术治疗方式将其分为置换组(52例)和固定组(52例),置换组患者采用生物型加长柄关节置换术治疗,固定组患者采用股骨近端防旋髓内钉内固定术治疗,对比观察两组患者围术期相关指标、髋关节恢复情况、生活质量及术后不良事件发生情况。结果置换组患者术中出血量明显多于固定组、手术时间明显长于固定组(t=5545、5150,P均<0001),而首次下床活动时间及住院时间与固定组无明显差异(t=1933、1619,P=0056、0109)。术后12个月,置换组患者髋关节恢复优良率为8077%,明显高于固定组患者的髋关节恢复优良率6154%(χ^(2)=4685,P=0030);置换组患者健康调查量表36(SF-36)中的躯体功能、躯体疼痛、总体健康、生理功能评分均明显高于固定组(t=3062、2868、3028、3440,P=0003、0005、0003、0001)。置换组患者术后不良事件发生率为577%,明显低于固定组患者的术后不良事件发生率2115%(χ^(2)=5283,P=0022)。结论与股骨近端防旋髓内钉内固定相比,生物型加长柄关节置换虽会增加老年股骨转子间不稳定骨折患者术中出血量,延长手术时间,但能够提高患者髋关节功能及生活质量,降低不良事件发生风险,临床效果更佳。

人工股骨头置换术与PFNA固定对老年股骨转子间骨折患者髋关节功能恢复的影响

目的:探讨人工股骨头置换术与近端防旋髓内钉(Proximal Femoral Nail Antirotation,PFNA)固定在老年股骨转子间骨折(Intertrochanteric fracture,IFF)中的应用效果。方法:选取2018年1月至2022年12月我院收治的36例老年IFF患者作为研究对象,按随机数字表法分为对照组和观察组,各18例。对照组进行PFNA固定术治疗,观察组进行人工股骨头置换术治疗。分析比较两组的手术情况、髋关节功能、日常生活能力和平衡功能及并发症。结果:观察组手术时间较对照组长,术中出血量较对照组多,下床活动时间、术后住院时间较对照组短,有统计学差异(P<0.05)。观察组术后Harris评分中关节功能、畸形、疼痛程度、关节活动度及总分均明显高于对照组(P<0.05)。观察组术后Barthel量表(Barthel index,BI)评分、Berg平衡量表(Berg balance scale,BBS)评分均明显高于对照组(P<0.05)。两组并发症相比无明显差异(P>0.05)。结论:人工股骨头置换术治疗老年IFF效果更佳,可缩短术后下床活动时间,加快患者髋关节功能恢复,提高BI评分及BBS评分,安全可靠。

亚洲型股骨近端防旋髓内钉固定治疗老年股骨转子间骨折

目的探讨亚洲型股骨近端防旋髓内钉(PFNA-Ⅱ)固定治疗老年股骨转子间骨折的主钉钉尾突出与疗效的关系。方法将217例采用PFNA-Ⅱ固定治疗的老年股骨转子间骨折患者根据术后主钉钉尾是否突出股骨大转子弧线分为突出组(115例)和非突出组(102例)。比较两组不同主钉长度、主钉远端直径、螺旋刀片位置的例数及手术时间、骨折复位质量、骨痂形成时间、骨折愈合时间、术后并发症发生情况。记录突出组钉尾突出股骨大转子距离。采用疼痛VAS评分评价股骨大转子区压痛情况,采用Harris评分评价髋关节功能恢复情况。结果患者均获得随访,时间9~16(13.4±2.1)个月。不同主钉长度、主钉远端直径、螺旋刀片位置的例数及手术时间、骨折复位质量、骨痂形成时间、骨折愈合时间、末次随访时Harris评分两组比较差异均无统计学意义(P>0.05)。术后6个月突出组髓内钉钉尾突出股骨大转子距离为3.4~19.7(9.5±2.4)mm。疼痛VAS评分、股骨大转子区疼痛率及术后并发症发生率突出组均高于非突出组(P<0.05)。结论采用PFNA-Ⅱ固定治疗老年股骨转子间骨折,股骨大转子区的髓内钉突出较常见,会导致疼痛及术后并发症发生率升高,建议对PFNA-Ⅱ进行进一步改良,缩短主钉近端长度,从而获得更满意的临床疗效。

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。

鞘内注射舒芬太尼与芬太尼对高龄股骨粗隆骨折PFNA内固定术患者的镇痛效果及安全性对比

目的:对比鞘内注射舒芬太尼与芬太尼对高龄股骨粗隆骨折近端股骨钉抗旋(PFNA)内固定术患者的镇痛效果及安全性对比。方法:选取2019年1月—2022年12月于常熟市第五人民医院接受股骨粗隆骨折PFNA内固定术的108例高龄患者作为研究对象,根据随机数表法将患者分为研究组54例与常规组54例。研究组采用鞘内注射舒芬太尼,常规组采用鞘内注射芬太尼。比较两组手术时间、镇痛时间、术后6 h、12 h视觉模拟评分法(VAS)评分及不良反应发生情况。结果:两组手术时间比较,差异无统计学意义(P>0.05);研究组镇痛时间长于常规组,差异有统计学意义(P<0.05)。研究组术后6 h、12 h VAS评分低于常规组,且两组术后12 h VAS评分低于术后6 h,差异有统计学意义(P<0.05)。研究组不良反应发生率低于常规组,差异有统计学意义(P<0.05)。结论:相比芬太尼,舒芬太尼在高龄股骨粗隆骨折PFNA内固定术患者中的镇痛作用显著,能缓解术后疼痛,还可降低不良反应发生率。