Investigation of contact behavior on a model of the dual-mobility artificial hip joint for Asians in different inner liner thicknesses

BACKGROUND The four components that make up the current dual-mobility artificial hip joint design are the femoral head,the inner liner,the outer liner as a metal cover to prevent wear,and the acetabular cup.The acetabular cup and the outer liner were constructed of 316L stainless steel.At the same time,the inner liner was made of ultra-high-molecular-weight polyethylene(UHMWPE).As this new dual-mobility artificial hip joint has not been researched extensively,more tribological research is needed to predict wear.The thickness of the inner liner is a significant component to consider when calculating the contact pressure.AIM To make use of finite element analysis to gain a better understanding of the contact behavior in various inner liner thicknesses on a new model of a dual-mobility artificial hip joint,with the ultimate objective of determining the inner liner thickness that was most suitable for this particular type of dual-mobility artificial hip joint.METHODS In this study,the size of the femoral head was compared between two diameters(28 mm and 36 mm)and eight inner liner thicknesses ranging from 5 mm to 12 mm.Using the finite element method,the contact parameters,including the maximum contact pressure and contact area,have been evaluated in light of the Hertzian contact theory.The simulation was performed statically with dissipated energy and asymmetric behavior.The types of interaction were surface-to-surface contact and normal contact behavior.RESULTS The maximum contact pressures in the inner liner(UHMWPE)at a head diameter of 28 mm and 36 mm are between 3.7-13.5 MPa and 2.7-10.4 MPa,respectively.The maximum von Mises of the inner liner,outer liner,and acetabular cup are 2.4–11.4 MPa,15.7–44.3 MPa,and 3.7–12.6 MPa,respectively,for 28 mm head.Then the maximum von Mises stresses of the 36 mm head are 1.9-8.9 MPa for the inner liner,9.9-32.8 MPa for the outer liner,and 2.6-9.9 MPa for the acetabular cup.A head with a diameter of 28 mm should have an inner liner with a thickness of 12 mm.Whereas the head diameter was 36 mm,an inner liner thickness of 8 mm was suitable.CONCLUSION The contact pressures and von Mises stresses generated during this research can potentially be exploited in estimating the wear of dual-mobility artificial hip joints in general.Contact pressure and von Mises stress reduce with an increasing head diameter and inner liner’s thickness.Present findings would become one of the references for orthopedic surgery for choosing suitable bearing geometric parameter of hip implant.

Meta-analysis of new intervention measures for preventing side effects of artificial joint replacement

BACKGROUND Intertrochanteric fracture of the femur occurs mostly among older people,and seriously affects daily life and quality of life.At present,physical intervention,drug treatment,routine intervention and rehabilitation training are widely used for prevention of side effects,but it is still inconclusive which intervention has the best effect.AIM To compare the effects of new intervention measures for preventing side effects of artificial joint replacement.METHODS We searched the Chinese and English literatures for comparative studies on the prevention of side effects of new interventions for artificial joint replacement from July 2013 to June 2023 in China HowNet,PubMed,Wanfang,Weipu and other databases.Study quality was evaluated by improved Jadad scoring standard,and the effects of different interventions on preventing different complications were analyzed by meta-analysis of evidence-based medicine with Review Manager 5.0 software.RESULTS Ten articles,including 869 cases,were finally included.The preventive effects of different interventions on the side effects of artificial joint replacement were studied,and valid data were extracted.There were two articles on the preventive effects of drug intervention,four on comparison of the preventive effects of combined and single interventions,and three on the preventive effects of physical intervention,rehabilitation training and routine intervention.Meta-analysis showed that the preventive effect of rivaroxaban was significantly better than low molecular weight heparin calcium[mean difference(MD)=-0.16,95%CI:-0.28 to-0.04,P<0.05].The effect of combined intervention was significantly better than that of single intervention(MD=-0.08,95%CI:-0.16 to-0.01,P<0.001).Physical intervention was significantly better than routine intervention and rehabilitation training(MD=0.26,95%CI:0.16–0.36,P<0.001).CONCLUSION Rivaroxaban combined with rehabilitation training is preferred for preventing deep vein thrombosis after artificial joint replacement.In the prevention of pulmonary embolism,rivaroxaban drug intervention is given priority.The effect of combined intervention is better than that of single intervention.

A Biomimetic Hip Joint Simulator and its Application in in vitro Study of the Integrity of Replacement Cemented Hip

A biomimetic hip joint simulator that can be used to evaluate the outcome of the cemented total hip replacement has been designed, manufactured and evaluated. The simulator produces motion in the extension/flexion plane, with a socket to rotate internal/externally. At the same time a dynamic loading cycle is applied. A validation test was performed on a cemented femoral stem within a novel composite femur. The hone quality has a strong effect on the stem migration and on the integrity of the interfaces. The migration of the stem is a combination of 3-D translation and rotation of the stem. Under the same loading conditions, weak bone allows more stem migration than strong bone. There is a great decrease in the strength of the stem-cement interface after the dynamic test, and the weak bone composite exhibited a greater reduction in interfacial strength than the strong bone composite. The decrease of the interfacial strength indicates that the primary bonding between the stem and the cement mantle had deteriorated and the integrity of stem-cement interface was damaged. The study demonstrates the value of using a hip joint simulator to investigate stem migration and interface integrity within the cemented hip replacement, suggesting that method can be used for in vitro evaluation of the biomaterials used in the cemented hip replacements.

Causes and management of prosthesis dislocation after artificial hip replacement

Objective To explore the causes and management of prosthesis disocation after artificaial hip replacement (AHR).Methods Seventeen patients with prosthesis dislocation after AHR during January 2000 to July 2010 were studied

Good accuracy of the alpha-defensin lateral flow test for hip periprosthetic joint infection: A pilot study in a retrospective cohort of 52 patients

BACKGROUND The alpha-defensin lateral flow(ADLF)test is a new diagnostic tool for periprosthetic joint infection(PJI).Test accuracy for combined cohorts of hip and knee PJI has been reported to be good.AIM To assess the accuracy of the ADLF test for hip PJI,and to compare three different diagnostic criteria for PJI.METHODS A cohort of 52 patients was identified,with a painful or poor-functioning total hip-or hemi-arthroplasty,that underwent aspiration and a subsequent ADLF test.PJI was diagnosed with Musculoskeletal Infection Society(MSIS)criteria,and sensitivity,specificity,overall accuracy,positive predictive value and negative predictive value were calculated.Furthermore,test specifics were compared with the European Bone and Joint Infection Society(EBJIS)and 2018 International Consensus Meeting(ICM)criteria for PJI.RESULTS Using MSIS criteria,sensitivity was 100%(CI:54%-100%)and specificity was 89%(CI:76%-96%).Six true positives and 5 false positives were found,including one case of metallosis.Using EBJIS criteria,more PJIs were found(11 vs 6),sensitivity was lower(71%,CI:42%-92%)and specificity was higher(97%,CI:86%-100%),with 4 false negatives and one false positive result.Using 2018 ICM criteria,sensitivity was 91%(62%-100%)and specificity 100%(91%-100%).The results in this cohort are comparable to previous studies.CONCLUSION Overall test accuracy of the ADLF test was good in this cohort,with a sensitivity of 100%and specificity of 89%.Using different PJI definition criteria,sensitivity and specificity changed slightly but overall accuracy remained around 90%.Using the ADLF test in metallosis cases can result in false positive results and should be performed with caution.

Effect of Artificial Hip Replacement Surgery on the Treatment of Intertrochanteric Femur Fractures in Elderly Patients and Its Impact on Hip Joint Function and Quality of Life

Objective:To evaluate the treatment effect of total hip arthroplasty(THA)for intertrochanteric femur fractures(IFF)in elderly patients.Methods:Thirty-two elderly patients with IFF admitted to the hospital from August 2021 to August 2024 were selected and randomly divided into two groups using a random number table.The experimental group(16 patients)underwent THA surgery,while the control group(16 patients)underwent proximal femoral nail antirotation(PFNA)surgery.Hip joint function and quality of life indicators were compared between the two groups.Results:Before surgery,there was no significant difference in hip joint function and quality of life scores between the two groups(P>0.05).However,at six months postoperatively,the experimental group had higher hip joint function and quality of life scores compared to the control group(P<0.05).The total effective rate was higher in the experimental group than in the control group(P<0.05).The complication rate in the experimental group was similar to that in the control group(P>0.05).Conclusion:THA can improve the clinical efficacy of elderly patients with IFF,minimize postoperative complications,effectively restore hip joint function,and optimize postoperative quality of life.

Effect of different hip replacement methods under minimally invasive anterolateral approach on bone metabolism and joint pain in patients with femoral neck fracture

Objective: To explore the effect of different hip replacement methods under minimally invasive anterolateral approach on bone metabolism and joint pain in patients with femoral neck fracture. Methods: A total of 110 patients with femoral neck fracture who were treated in Ruijin Hospital North, Shanghai Jiaotong University School of Medicine between July 2015 and January 2017 were collected and divided into control group and observation group by random number table, each with 55 cases. Control group accepted half hip replacement under minimally invasive anterolateral approach, and observation group accepted total hip replacement under minimally invasive anterolateral approach. The differences in contents of bone metabolism and joint pain-related indexes were compared between the two groups before and after surgery. Results: Before surgery, serum contents of bone formation indexes, bone resorption indexes, inflammatory indexes and pain mediators were not statistically significant between the two groups. 1 month after surgery, serum bone formation indexes PINP, BAP and BGP contents of observation group were higher than those of control group;serum bone resorption indexes β-CTX and TRACP-5b contents were lower than those of control group;serum inflammatory indexes IL-1 and TNF-α contents were lower than those of control group;serum pain mediators 5-HT and PGE2 contents were lower than those of control group. Conclusion: Total hip replacement under minimally invasive anterolateral approach is more effective to promote the formation of bone formation/bone resorption balance and reduce the joint pain.

Survival outcomes of cemented compared to uncemented stems in primary total hip replacement

Total hip replacement(THR) is a successful and reliable operation for both relieving pain and improving function in patients who are disabled with end stage arthritis.The ageing population is predicted to significantly increase the requirement for THR in patients who have a higher functional demand than those of the past. Uncemented THR was introduced to improve the long term results and in particular the results in younger, higher functioning patients. There has been controversy about the value of uncemented compared to cemented THR although there has been a world-wide trend towards uncemented fixation. Uncemented acetabular fixation has gained wide acceptance, as seen in the increasing number of hybrid THR in joint registries, but there remains debate about the best mode of femoral fixation.In this article we review the history and current worldwide registry data, with an in-depth analysis of the New Zealand Joint Registry, to determine the results of uncemented femoral fixation in an attempt to provide an evidence-based answer as to the value of this form of fixation.

Leg-length equalization for total hip joint replacement patients

Objective To investigate the methods to maintain leg equalization for patients undergoing primary total hip joint replacement. Methods 40 patients,45 hips with various diseases were treated by total hip joint replacement from Jan 2000 to Sep 2001.Before operation, the perpendicular length from center of femoral head to the summit of great tuberosity and the tip of less tuberosity to the line of bilateral ischial tuberosity were measured; the length from anterior superior iliac spine to medial malleolus were measured at same time.Leg length was decided and corrected according to these lines. Results Before operation, shortening of limbs were presented in 39 hips, 1 to 4 cm, average 2.4 cm.After operation, discrepancy of both legs was 0～0.8 cm.Apparent limps were not observed in all patients. Conclusion This measurement is a useful method to maintain and recover leg length in total hip joint replacement.

ANALYSIS AND RESEARCH OF COMPUTER-AIDED MODEL OF HIP JOINT BASED ON REVERSE ENGINEERING

Former research work about the modeling of hip joint focus on the uppersegment of femoral, and assumes the acetabulum cup is sphere concave, and the acetabulum prosthesesis semisphere. A method of acquiring the point data on the surface of the hipbone using the reverseengineering technology is presented. After analyzing the acetabulum surface fitting error, arotation ellipsoid CAD model is applied to fit the acetabulum surface, and then optimizationtechnique is used to find the geometric parameters of the model. The fitting error between thesphere and rotation ellipsoid is compared and gets the result that the fitting error of rotationellipsoid is smaller than sphere, and the rotation ellipsoid can describe the shape of theacetabulum better.

A method to calculate the acetabular cup anteversion after total hip replacement based on 3D coordinate system

Aim: To explore an accurate method to calculate acetabular cup anteversion after total hip arthroplasty. Method: 1) A 3D coordinate system was established with the center of the hip joint rotation center base as coordinate center. The acetabular exit plane and Pettersson formula acetabular anteversion and Riten Pradhan formula acetabular anteversion and acetabular true anteversion were drawn;2) Determine the mathematical expression of Pettersson formula acetabular anteversion α and Riten Pradhan formula acetabular anteversion β in the coordinate system. The true acetabular anteversion is projection angle of Pettersson formula acetabular anteversion α on cross-section in the presence of acetabular abduction δ, determining mathematical expression of the acetabular anteversion θ by trigonometric functions. Results: Real acetabular cup anteversion θ = arctg (tgβ/cosδ). Conclusion: The true acetabular cup anteversion and Pettersson formula anteversion and Riten Pradhan for mula anteversion were quite different. The difference was increased with the acetabular cup abduction angle increased. The formula was simple and accurate and worthy of clinical reference.

Preoperative and postoperative risk factors for periprosthetic joint infection in primary total hip arthroplasty:A 1-year experience

BACKGROUND Periprosthetic joint infection(PJI)in primary total hip replacement(THR)is one of the most important threats in orthopedic surgery,so one important surgeon’s target is to avoid or early diagnose a PJI.Although the incidence of PJI is very low(0.69%)in our department,with an average follow-up of 595 d,this infection poses a serious threat due to the difficulties of treatment and the lower functional outcomes after healing.AIM To study the incidence of PJI in all operations occurring in the year 2016 in our department to look for predictive signs of potential infection.METHODS We counted 583 THR for 578 patients and observed only 4 cases of infection(0.69%)with a mean follow-up of 596 d(min 30,max 1451).We reviewed all medical records to collect the data:duration and time of the surgery,presence,type and duration of the antibiotic therapy,preoperative diagnosis,blood values before and after surgery,transfusions,presence of preoperative drugs(in particularly anticoagulants and antiaggregant,corticosteroids and immunosuppressants),presence of some comorbidities(high body mass index,blood hypertension,chronic obstructive pulmonary disease,cardiac ischemia,diabetes,rheumatological conditions,previous local infections).RESULTS No preoperative,intraoperative,or postoperative analysis showed a higher incidence of PJI.We did not find any class with evident major odds of PJI.In our study,we did not find any border value to predict PJI and all patients had similar values in both groups(non-PJI and PJI).Only some categories,such as female patients,showed more frequency of PJI,but this difference related to sex was not statistically significant.CONCLUSION We did not find any category with a higher risk of PJI in THR,probably due to the lack of few cases of infection.

Recent advances in minimally invasive total hip replacement surgery approaches

Minimally invasive surgery is a technology that has been seeking breakthroughs in surgery.It is a common goal of both doctors and patients.At present,artificial hip arthroplasty has been in clinical application for more than fifty years,and has been fully affirmed.In recent years,minimally invasive techniques have been applied more clinically.And minimally invasive has the advantages of less bleeding,early postoperative activities and more are accepted by more and more surgeons.However,the current minimally invasive total hip replacement approach is different.This article reviews the approaches and advantages and disadvantages of the minimally invasive artificial hip joint replacements currently used in the clinic in order to provide new ideas for clinical minimally invasive total hip replacement.

Running-in friction of hip joint replacements can be significantly reduced:The effect of surface-textured acetabular cup

Hip joint replacements represent the most effective way of treatment for patients suffering from joint diseases.Despite the rapid improvement of implant materials over the last few decades,limited longevity associated with wear-related complications persists as the main drawback.Therefore,improved tribological perfor-mance is required in order to extend the service life of replacements.The effect of surface texturing of ultra-high molecular weight polyethylene(UHMWPE)acetabular cup was investigated in the present study.Unique tilling method was utilized for manufacturing the dimples with controlled diameter and depths on the contact surface of the cup.The experiments with four commercial femoral components and two model lubricants were realized.The main attention was paid to a coefficient of friction considering the differences between the original and the dimpled cups.Results showed remarkable lowering of friction,in general.Focusing on the simulated human synovial fluid,friction was reduced by 40%(alumina ceramic),38.8%(zirconia toughened ceramic),25.5%(metal),and 9.9%(oxinium).In addition,the dimples helped to keep the friction stable without fluctuations.To conclude,the paper brings a new insight into frictional behaviour of the hip replacements during running-in phase which is essential for overall implant lifespan.It is believed that proper surface texturing may rapidly improve the life quality of millions of patients and may lead to considerable financial savings.

有限元分析技术在膝关节生物力学应用中的特点与优势

背景:有限元分析是一种先进的计算机工程技术,利用数学近似的方法对真实人体进行模拟,可以真实反映膝关节结构内部的生物力学特征,为理解膝关节疾病发病机制、优化手术方案以及开发新型植入材料提供了有效的工具。目的:对膝关节有限元模型的建立及其在膝关节疾病研究中的应用进行综述,并展望了未来的发展趋势。方法:第一作者于2024年4月以“Finite Element Analysis,FEA,knee joint,Finite Element Model,Knee Biomechanics,Knee Osteoarthritis,Knee Prosthesis,Knee Ligaments,Meniscus”为英文检索词在PubMed和EI数据库进行检索,以“有限元分析,有限元模型,膝关节,生物力学,骨关节炎,计算模型,膝关节假体,膝关节韧带,半月板”为中文检索词在中国知网和万方数据库进行检索,最终纳入75篇文献进行分析。结果与结论:①有限元分析法利用医学影像数据获得三维人体模型,将复杂的人体关节结构简化为有限且相互连接的单元,通过对模型施加外部载荷,直观地显示膝关节内部的应力分布。②研究者通过有限元分析深入研究膝关节在不同工况下的内部应力和应变分布,可发现膝关节内部载荷分配平衡改变时,关节软骨的过度载荷及部分区域的负荷下降,这种长期异常应力会引起软骨变形和磨损,最终缺失,对于理解生物力学因素如何引起膝关节退行性变至关重要。③有研究通过有限元分析评估膝骨关节炎患者采用太极拳、步态调整等物理治疗方法的效果,结果显示这些治疗方法减少了软骨的过度负荷,为临床治疗提供了科学理论依据。④临床医生通过有限元分析在手术前进行三维重建、数据测量和模拟手术,能够优化手术治疗策略;此外,还可以通过模拟不同假体的力学特征,改进假体的形状、材料和固定方式,减少患者的并发症,提高患者的治疗效果。⑤人工智能与有限元分析相结合使得有限元模型的构建更为精确和易于操作,极大提高了临床医生医疗实践的效率和患者的治疗效果。⑥有限元分析仅是数字化的模拟,与真实物理状态仍存在一定差异。

声发射技术在关节外科中的应用及价值

背景:声发射技术是无损检测中最可靠和完善的技术之一,被广泛用于机械、土木和水下声学等多个领域的损伤检测。近年来,声发射技术获得较大发展,在医学工程领域得到初步应用,特别是在人体关节的摩擦评估以及植入物监测方面具有优势。目的:总结声发射技术在关节外科中的应用现状、存在问题及未来的发展方向。方法:检索1989年1月至2024年3月PubMed数据库、Web of Science数据库、中国知网、万方数据库发表的相关文献,中文检索词为“声学,髋关节置换术,髋关节假体,假体失效,膝关节骨关节炎,膝关节,监测,人工关节”;英文检索词为“acoustics,hip replacement arthroplasties,hip prosthesis,prosthesis failure,knee osteoarthritides,knee joint,monitoring,artificial joint”。初检得到文章2991篇,根据纳排标准,最终纳入80篇文章进行综述分析。结果与结论:①在关节外科领域中,声发射技术主要用于关节疾病早期的发现与诊断,以及关节置换术中骨裂和术后假体下沉、植入物磨损、无菌性松动、骨裂等的检测;②声发射技术的优势可以弥补传统检测方法的不足,提早发现关节炎,降低术中的损伤风险,监测并减少术后并发症,提高手术安全性和临床效果。

人工股骨头置换治疗老年股骨颈骨折:髋关节功能不良风险预测模型的验证

背景:人工股骨头置换是老年人股骨颈骨折最主要的手术方式之一,然而术后髋关节功能不良是一个常见且棘手的问题。目的:建立老年股骨颈骨折患者行人工股骨头置换后早期髋关节功能改善情况的列线图预测模型并进行验证。方法:回顾性选择2022年1月至2023年10月在喀什地区第一人民医院因股骨颈骨折行人工股骨头置换的230例患者,收集可能影响术后早期髋关节功能的相关因素,在术后6个月时采用Harris髋关节评分量表评估髋关节功能改善情况。根据术后髋关节功能改善情况是否理想将患者分为功能正常组和功能不良组,比较两组患者术前、术中及术后因素,以LASSO回归筛选潜在因素后行多因素Logistic回归,以R4.1.3软件建立列线图预测模型并进行内部验证。结果与结论:①最终纳入221例患者,术后6个月患者平均Harris评分为82.07±8.28;②LASSO回归筛选出4个潜在影响因素,以此行多因素logistic回归分析结果显示,年龄、体质量指数、受伤至手术天数及术后负重时间为术后早期髋关节功能不良的独立影响因素(P<0.05);③根据多因素结果建立列线图模型,校准曲线结果显示,预测曲线与标准曲线基本拟合;受试者操作特征曲线分析结果显示,列线图模型预测术后早期髋关节功能不良的曲线下面积为0.870[95%CI(0.819,0.921)];④术后早期髋关节功能改善情况受年龄、体质量指数、受伤至手术天数及术后负重时间等因素的影响,此次研究建立的列线图模型用于预测人工股骨头置换后早期髋关节功能不良具有较高的区分度与准确度。

多维度护理在全髋关节置换术患者中的应用效果分析

目的:分析多维度护理在全髋关节置换术患者中的应用效果。方法:将2021年1月—2024年4月于南京市红十字医院实施全髋关节置换术治疗的患者62例随机分为观察组(n=31,实施多维度护理)和对照组(n=31,实施常规护理)。对比两组护理效果。结果:观察组并发症总发生率低于对照组(P<0.05)。干预后,两组疼痛、关节畸形评分下降,日常活动与步态、关节活动评分升高,且观察组改善幅度大于对照组(P<0.05)。干预后,两组健康状态、身体功能、社会功能、心理健康评分及总分升高,且观察组高于对照组(P<0.05)。观察组护理态度、健康宣教、心理护理、护理操作、护理质量评分高于对照组(P<0.05)。结论:对全髋关节置换术患者实施多维度护理应用效果较好,能够降低并发症发生率,改善患者髋关节功能和生活质量,提高护理满意度。

基于阶段变化理论的健康教育对外科患者术后并发症及生活质量的影响研究

目的:研究基于阶段变化理论的健康教育对外科患者术后的影响。方法:选择2021年6月—2022年6月于赣州市于都县第二人民医院行髋关节置换术的60例患者作为研究对象,按随机数表法将其分为研究组和对照组,每组各30例。对照组患者采用传统健康教育,研究组患者采取基于阶段变化理论的健康教育,比较两组患者疾病知识掌握度、自护能力、依从性、生活质量综合评定问卷(GQOLI-74)、并发症情况。结果:研究组患者掌握度高于对照组,差异有统计学意义(χ^(2)=5.455,P<0.05)。干预后,研究组患者健康知识、自我护理技能、自我护理责任、自我概念评分均高于对照组,差异均有统计学意义(t=13.383、9.424、6.974、5.812,P<0.05)。研究组患者的遵医用药、功能锻炼、健康饮食、定期复查的依从性评分均高于对照组,差异均有统计学意义(t=3.055、2.671、5.302、5.003,P<0.05)。干预后,研究组患者GQOLI-74各项评分均高于对照组,差异均有统计学意义(t=14.208、12.000、15.195、11.603,P<0.05)。研究组患者并发症发生率低于对照组,差异有统计学意义(χ^(2)=4.320,P<0.05)。结论:基于阶段变化理论的健康教育不仅能够提升患者对疾病知识的掌握度,还可改善自我护理能力,使其依从性明显增加,提升患者生活质量,并发症较少。

全髋关节置换与内固定术治疗老年股骨颈骨折术后髋关节功能及免疫炎性反应比较

目的:探讨全髋关节置换术与内固定术治疗老年股骨颈骨折术后髋关节功能、免疫炎性反应对比。方法:选取2020年1月~2023年11月北京积水潭医院贵州医院收治的154例老年股骨颈骨折患者为观察对象,按照手术方法分为对照组72例、观察组82例,对照组采取内固定术,观察组采取全髋关节置换术,比较手术期指征、手术前、后髋关节功能(Harris评分)、疼痛视觉模拟评分(VAS评分)、生活质量评分、术后并发症发生率、免疫炎性反应水平。结果:术后住院时间观察组低于对照组,手术时间、出血量观察组高于对照组,差异有统计学意义(P<0.05)。术后1个月两组髋关节功能Harris评分差异无统计学意义(P>0.05),术后6个月髋关节功能Harris评分观察组高于对照组,差异有统计学意义(P<0.05)。术前两组患者的疼痛评分差异无统计学意义(P>0.05),术后6个月观察组疼痛评分低于对照组,差异有统计学意义(P<0.05)。术前两组患者生活质量评分差异无统计学意义(P>0.05),术后6个月观察组高于对照组,差异有统计学意义(P<0.05)。术后观察组并发症发生率(2.44%)低于对照组(12.50%),差异有统计学意义(P<0.05)。免疫炎性反应指标整体呈先升高再降低趋势,组间、时点间差异有统计学意义(P<0.05)。结论:全髋关节置换术治疗老年股骨颈骨折对比内固定术,术后住院时间短,免疫炎性反应小,可更好改善患者髋关节功能、生活质量,降低疼痛、并发症发生率。