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.

Bone metabolism and trauma degree of magnetic-guided intramedullary nail fixation for femoral shaft fracture

Objective:To explore the effect of magnetic-guided intramedullary nail fixation on bone metabolism and trauma degree in patients with femoral shaft fracture.Methods: A total of 128 patients with femoral shaft fractures who received surgical treatment in the hospital between April 2016 and November 2017 were divided into control group (n=64) and study group (n=64) according to the random number table method. Control group received the traditional intramedullary nail treatment, and study group received magnetic-guided intramedullary nail treatment. The differences in serum levels of bone metabolism indexes and inflammatory factors were compared between the two groups 48 h after surgery.Results: 48 h after surgery, serum bone formation indexes BGP, PⅠNP, PⅠCP and BAP levels of study group were higher than those of control group whereas bone resorption indexesβ-CTX, TRACP5b and NTX levels were lower than those of control group;serum inflammatory factors TGF-β, hs-CRP, IL-1β, IL-6 and IL-17 levels were lower than those of control group.Conclusion:Compared with traditional intramedullary nail therapy, magnetic-guided intramedullary nail fixation can more effectively balance the bone metabolism status and reduce the fracture end trauma in patients with femoral shaft fracture.

Trauma and bone metabolism of magnetic navigation intramedullary nail and traditional intramedullary nail fixation treatment of femoral shaft fracture

Objective:To analyze the trauma and bone metabolism of magnetic navigation intramedullary nail and traditional intramedullary nail fixation treatment of femoral shaft fracture. Methods:58 patients with femoral shaft fracture treated in our hospital between December 2011 and December 2015 were divided into observation group and control group by random number table (n=29). Control group received conventional intramedullary nail fixation treatment, and observation group received magnetic navigation intramedullary nail fixation treatment. 24 h after surgery, blood coagulation indexes, enzymology indexes, bone metabolism indexes and angiogenesis indexes were determined;6 months after surgery, bone mineral density levels were determined. Results:24 h after surgery, peripheral blood thrombin time (TT), prothrombin time (PT), and activated partial thromboplastin time (APTT) levels of observation group were significantly higher than those of control group, and serum fibrinogen (FIB), D-Dimer (D-D), lactate dehydrogenase (LDH), creatine kinase (CK), creatine kinase isoenzyme (CKMB), glutamic oxalacetic transaminase (GOT), sex hormone-binding globulin type I (SHBG), collagen cross-linked carboxyl-terminal telopeptide (CTX) and deoxypyridinoline (DPD) content were lower than those of control group while bone gla protein (BGP), insulin-like growth factor (IGF-1), hypoxia-inducible factor-1α (HIF-α), angiogenin 1 (Ang-1), recombinant basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) content were higher than those of control group;6 months after surgery, fracture end bone mineral density (BMD) value of observation group was higher than that of control group. Conclusions:Magnetic navigation intramedullary nail treatment of femoral shaft fracture can more effectively reduce the surgical trauma, improve bone metabolism and increase bone mineral density.

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.

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.

Intramedullary bone pedestal formation contributing to femoral shaft fracture nonunion:A case report and review of the literature

BACKGROUND Femoral shaft fracture is a commonly encountered orthopedic injury that can be treated operatively with a low overall delayed/nonunion rate.In the case of delayed union after antegrade or retrograde intramedullary nail fixation,fracture dynamization is often attempted first.Nonunion after dynamization has been shown to occur due to infection and other aseptic etiologies.We present a unique case of diaphyseal femoral shaft fracture nonunion after dynamization due to intramedullary cortical bone pedestal formation at the distal tip of the nail.CASE SUMMARY A 37-year-old male experienced a high-energy trauma to his left thigh after coming down hard during a motocross jump.Evaluation was consistent with an isolated,closed,left mid-shaft femur fracture.He was initially managed with reamed antegrade intramedullary nail fixation but had continued thigh pain.Radiographs at four months demonstrated no evidence of fracture union and failure of the distal locking screw,and dynamization by distal locking screw removal was performed.The patient continued to have pain eight months after the initial procedure and 4 mo after dynamization with serial radiographs continuing to demonstrate no evidence of fracture healing.The decision was made to proceed with exchange nailing for aseptic fracture nonunion.During the exchange procedure,an obstruction was encountered at the distal tip of the failed nail and was confirmed on magnified fluoroscopy to be a pedestal of cortical bone in the canal.The obstruction required further distal reaming.A longer and larger diameter exchange nail was placed without difficulty and without a distal locking screw to allow for dynamization at the fracture site.Post-operative radiographs showed proper fracture and hardware alignment.There was subsequently radiographic evidence of callus formation at one year with subsequent fracture consolidation and resolution of thigh pain at eighteen months.CONCLUSION The risk of fracture nonunion caused by intramedullary bone pedestal formation can be mitigated with the use of maximum length and diameter nails and close follow up.

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.

Titanium Elastic Nails for Pediatric Femur Fractures: Clinical and Radiological Study

Background: Management of femoral diaphyseal fractures in the age group 616 years is controversial. There has been a resurgence worldwide for operative fixation. Material and methods: Twenty children (15 boys, 5 girls) aged 616 years with femoral diaphyseal fractures (20 fractures, one in each) were stabilized with Titanium Elastic Nail (TEN). Patients underwent surgery within ten days of their injury. The results were evaluated using Flynn’s Scoring Criteria.Two nails were used in each fracture. Results: All 20 patients were available for evaluation and follow up for a mean duration of 24 months (1532 months). Radiological union in all cases was achieved in a mean time of 8 weeks. Full weight bearing was possible in a mean time of 10 weeks (812 weeks). The results were excellent in 14 patients (70%) and successful in 6 patients (30%). Few complications that occurred were infection (in 2 cases), knee joint stiffness(in 4 cases), angulation less than 10 degrees( in 4 cases), shortening less than 10 mm(in 4 cases). Conclusion: Intramedullary fixation by TEN is an effective treatment of fracture of femur in properly selected patients of the 616 years age group.

Fragility of statistically significant findings from randomized clinical trials of surgical treatment of humeral shaft fractures:A systematic review

BACKGROUND Despite recent meta-analyses of randomized controlled trials(RCTs),there remains no consensus regarding the preferred surgical treatment for humeral shaft fractures.The fragility index(FI)is an emerging tool used to evaluate the robustness of RCTs by quantifying the number of participants in a study group that would need to switch outcomes in order to reverse the study conclusions.AIM To investigate the fragility index of randomized control trials assessing outcomes of operative fixation in proximal humerus fractures.METHODS We completed a systematic review of RCTs evaluating the surgical treatment of humeral shaft fractures.Inclusion criteria included:articles published in English;patients randomized and allotted in 1:1 ratio to 2 parallel arms;and dichotomous outcome variables.The FI was calculated for total complications,each complication individually,and secondary surgeries using the Fisher exact test,as previously published.RESULTS Fifteen RCTs were included in the analysis comparing open reduction plate osteosynthesis with dynamic compression plate or locking compression plate,intramedullary nail,and minimally invasive plate osteosynthesis.The median FI was 0 for all parameters analyzed.Regarding individual outcomes,the FI was 0 for 81/91(89%)of outcomes.The FI exceeded the number lost to follow up in only 2/91(2%)outcomes.CONCLUSION The FI shows that data from RCTs regarding operative treatment of humeral shaft fractures are fragile and does not demonstrate superiority of any particular surgical technique.

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。

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。

闭合复位钛制弹性髓内钉内固定治疗MasonⅡ型桡骨头骨折疗效分析

目的探讨闭合复位钛制弹性髓内钉内固定治疗MasonⅡ型桡骨头骨折的临床效果。方法选取2019年6月至2021年6月郑州市第七人民医院收治的80例MasonⅡ型桡骨头骨折患者作为研究对象,按照随机数表法将其随机分为观察组(40例)和对照组(40例),观察组患者采用闭合复位钛制弹性髓内钉内固定治疗,对照组患者采用手法复位联合石膏外固定治疗,对比观察两组患者临床疗效、肘关节活动度及并发症发生情况。结果术后6个月,观察组患者肘关节功能恢复为优者30例、良者8例、可者2例,明显优于对照组患者的肘关节功能恢复为优者14例、良者17例、可者7例、差者2例(Z=-3664,P<0001);术后6个月,观察组患者肘关节屈曲、伸展及前臂旋前、旋后活动度均明显大于对照组(t=3643、2868、3366、3588,P=0001、0005、0001、0001);术后随访1年,观察组患者均未出现并发症,其并发症发生率明显低于对照组患者的并发症发生率100%(χ^(2)=4211,P=0040)。结论与手法复位联合石膏外固定相比,闭合复位钛制弹性髓内钉内固定能够明显提高MasonⅡ型桡骨头骨折患者的肘关节功能恢复效果,改善肘关节活动度,减少术后并发症的发生,值得临床推广应用。

髓内钉在下肢骨折患者内固定治疗中的应用

目的探讨在下肢骨折患者内固定治疗中应用髓内钉的效果。方法选取2022年1月—2023年5月麻城市人民医院收治的210例下肢骨折患者为研究对象,按照不同的手术方法分为对照组和研究组,各105例。对照组行常规加压钢板内固定治疗,研究组行带锁髓内钉治疗。比较两组术后骨折愈合情况、手术相关参数、术后并发症发生情况。结果研究组术后骨折愈合优良率为93.33%(98/105),高于对照组的81.90%(86/105),差异有统计学意义(χ^(2)=6.321,P<0.05)。研究组手术时间、切口长度均短于对照组,术中出血量、术后引流量均少于对照组,差异有统计学意义(P均<0.05)。研究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)。结论髓内钉应用在下肢骨折中可取得显著的效果,能减少手术对患者的创伤,且术后骨折愈合的优良率更高。

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。

顺行交锁钉结合LISS内固定治疗Lambiris Ⅲ或Ⅳ型股骨骨折的临床效果

目的 探究顺行交锁钉结合微创内固定系统(LISS)内固定治疗LambirisⅢ或Ⅳ型股骨骨折的应用效果。方法 前瞻性选取2022年1月至2023年1月南阳市中心医院收治的95例股骨骨折(LambirisⅢ或Ⅳ型)患者,以简单随机法分为对照组(47例)和研究组(48例)。对照组接受常规LISS内固定治疗,研究组接受顺行交锁钉结合LISS内固定治疗。比较两组围手术期情况、创伤应激因子[超氧化物歧化酶(SOD)、去甲肾上腺素(NE)、血管紧张素Ⅱ(AngⅡ)]、视觉疼痛模拟量表(VAS)、硫化氢(H_(2)S)、鸢尾素(Irisin)、髋关节功能、并发症发生率。结果 研究组出血量为(357.49±32.81)mL,少于对照组的(385.94±37.26)mL,住院时间、骨折愈合时间分别为(17.63±2.29)d、(28.76±2.15)周,短于对照组的(19.51±2.64)d、(30.28±2.40)周(P<0.05)。研究组SOD、NE、AngⅡ水平术后第3天分别为(90.53±11.24)U·L^(-1)、(83.15±8.74)μg·L^(-1)、(148.62±18.53)mmol·L^(-1),低于对照组的(98.31±11.56)U·L^(-1)、(90.26±9.57)μg·L^(-1)、(163.78±19.37)mmol·L^(-1)(P<0.05)。研究组第3个月VAS评分为(1.97±0.65)分,低于对照组的(2.76±0.81)分(P<0.05);术后第3个月研究组H_(2)S、Irisin水平分别为(34.15±3.28)ng·L^(-1)、(217.83±16.45)μg·L^(-1),高于对照组的(32.28±3.11)ng·L^(-1)、(205.46±14.82)μg·L^(-1)(P<0.05);术后末次随访研究组髋关节功能优良率高于对照组(P<0.05)。结论 顺行交锁钉结合LISS内固定治疗LambirisⅢ或Ⅳ型股骨骨折患者,可减少出血,减轻应激反应,加快术后早期恢复,促进骨折愈合,恢复髋关节功能,减轻患者疼痛。

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。

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.

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。

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。

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。