多孔钽棒置入治疗股骨头坏死16例

背景：髓心减压及钽棒置入治疗早期股骨头坏死的手术方法,尤其适合于股骨头坏死SteinbergⅠ期和Ⅱ期,既可以解决疼痛又可以防治股骨头的塌陷延缓坏死的进展,是一种值得尝试的新方法。 目的：探讨多孔钽棒置入治疗股骨头坏死的适应症及其临床疗效。 方法：纳入股骨头坏死16例18髋,根据Steinberg分期：Ⅰ期5髋,Ⅱ期12髋,Ⅲ期A 1髋。采用侧方小切口入路,行髓心减压及多孔坦棒置入。置入后6周内禁止负重,6~10周部分负重,逐步过渡至完全负重。采用Harris评分系统评估患者置入后髋关节功能改善情况;置入后24 h、1,3,6,12个月摄正侧位X射线平片,观察股骨头修复情况及有无坏死进展。 结果与结论：16例18髋获得随访,随访时间7~13个月。置入后末次随访进行疗效评估,优：11例12髋,良：4例5髋,可：1例1髋。患者Harris评分由置入前49~83分,平均(65.3±8.6)分,提高至置入后75~97分,平均(88.2±9.3)分,治疗前后比较差异有显著性意义(P < 0.05)。随访摄片髋关节影像学表现稳定,股骨头无坏死进展。提示,多孔钽棒假体置入治疗股骨头坏死疗效确切,尤其是对于SteinbergⅠ期,Ⅱ期及塌陷较小的 ⅢA期股骨头坏死的患者。     

早期股骨头缺血性坏死治疗：髓芯减压并钽棒优于并植骨

背景：单纯髓芯减压并植骨治疗早期股骨头缺血性坏死对软骨下骨支撑不够,增加了骨折及塌陷的风险。钽棒的置入不仅可以提供很好的生物学支撑,也会增加坏死区域的再血管化,从而达到修复股骨头坏死的作用。目的：比较髓芯减压并植骨、髓芯减压并钽棒置入治疗早期股骨头缺血性坏死的临床效果。方法：纳入髓芯减压并植骨治疗ARCOⅠ/Ⅱ期股骨头缺血性坏死患者24例28髋,髓芯减压并钽棒置入治疗ARCOⅠ/Ⅱ期股骨头缺血性坏死患者25例29髋。随访24个月,观察治疗前后Harris评分变化及临床疗效。结果与结论：所有患者均获得随访。治疗后6个月,髓芯减压并植骨组患者Harris评分较治疗前平均提高了4.93分;髓芯减压并钽棒置入组患者Harris评分较治疗前平均提高了6.89分,差异有显著性意义(P < 0.05)。治疗后12个月,2组患者Harris评分均有治疗前显著提高,髓芯减压并植骨组患者Harris评分低于髓芯减压并钽棒置入组(P < 0.05)。髓芯减压并钽棒置入组总的治疗优良率为83%,优于髓芯减压并植骨组的75%。治疗后24个月髓芯减压并钽棒置入组X射线评分显著高于髓芯减压并植骨组(P < 0.05)。提示与髓芯减压并植骨相比,髓芯减压并钽棒置入能够更有效地防止股骨头塌陷,改善关节功能及延缓股骨头坏死进程。 中国组织工程研究杂志出版内容重点：肾移植;肝移植;移植;心脏移植;组织移植;皮肤移植;皮瓣移植;血管移植;器官移植;组织工程全文链接：     

骨小梁金属AVN重建棒在早期股骨头坏死中的应用:2年45髋临床观察

背景:以往股骨头骨坏死的治疗方法多采用髓芯减压和某种植骨。但单纯髓芯减压缺少对软骨下骨板的结构支撑,血管蒂腓骨移植容易出现包括取骨区伴发的病损、延长的手术时间、失血以及在康复过程中的并发症。目的:评定采用多孔钽置入联合髓芯减压治疗股骨头坏死髋关节的生存率。方法:选择股骨头坏死Ⅰ期和Ⅱ期塌陷前的患者40例(45髋),男32例,女8例,年龄29.5(20～40)岁。采用联合多孔钽置入联合髓芯减压治疗股骨头坏死,置入前后Harris评分评价髋关节功能,影像学评估并发症情况。结果与结论:40例患者手术均顺利完成,无意外发生,均获得随访,12例随访24个月,18例随访12个月,10例随访6个月。40例患者术后关节功能均较术前明显改善,影像学显示坦棒均正确置入相应区域,未出现异常的骨密度、塌陷、假体松动及放射性透光线的表现。说明采用多孔钽置入物联合髓芯减压治疗股骨头坏死,可延缓或预防关节软骨的逐渐塌陷。     

股骨头髓芯减压为基础治疗早期股骨头坏死

背景：髓芯减压治疗早期股骨头坏死效果较好,而且髓芯减压方法简单易行,即使远期治疗效果不理想也不影响行人工全髋关节置换。 目的：探讨以股骨头髓芯减压为基础的3种方法治疗早期股骨头坏死的临床疗效。 方法：根据国际骨循环研究学会(Association Research Circulation Osseous,ARCO)股骨头坏死分期标准,纳入股骨头坏死患者46例(61髋),Ⅰ期21例(29髋),Ⅱ期25例(32髋)。其中15例(23髋)行单纯髓芯减压治疗,18例(25髋)行髓芯减压联合自体骨髓单个核细胞移植治疗,13例(13髋)行髓芯减压联合多孔钽棒置入治疗。 结果与结论：全部患者均获12个月随访,3组患者末次随访时髋关节Harris评分均高于术前(P < 0.01),末次随访时联合细胞移植组和联合多孔钽棒组Harris评分高于单纯髓芯减压组(P < 0.01),而联合细胞移植组和联合多孔钽棒组比较差异无显著性意义(P > 0.05)。髋关节X射线检查：单纯髓芯减压组2例(3髋)发展为塌陷、联合细胞移植组1例(1髋)发展为塌陷,联合多孔钽棒组2例(2髋)出现塌陷。结果可见以股骨头髓芯减压为基础的3种方法治疗早期股骨头坏死均有效,其中髓芯减压联合自体骨髓单个核细胞移植或多孔钽棒置入近期疗效优于单纯髓芯减压治疗。     

髓芯减压植骨与多孔钽棒植入修复非创伤性股骨头坏死

背景：髓芯减压植骨是临床上常用的一种方法,随着对股骨头生物力学研究的深入,多孔钽棒技术也越来越多的用于保髋手术,但这两种术式在临床上疗效比较报道较少。 目的：比较髓芯减压植骨与多孔钽棒植入治疗非创伤性股骨头缺血性坏死的临床疗效。 方法：选择36例(45髋)成人股骨头缺血坏死患者,其中15例(19髋)采用髓芯减压植骨治疗,21例(26髋)采用髓芯减压多孔钽棒植入治疗。 结果及结论：植入治疗均成功,随访3~12个月,两组手术时间、出血量、住院天数比较差异均无显著性意义,治疗后Harris评分较治疗前均有明显提高(P < 0.05),治疗后12个月Harris评分,多孔钽棒植入高于植骨治疗(P < 0.05),差异显著性意义。髓芯减压与多孔钽棒植入对早期成人股骨头坏死髋关节功能改善优于髓芯减压植骨,预防了关节软骨的逐渐塌陷。     

多孔钽金属棒治疗早期股骨头无菌性坏死：应用与问题

背景：临床上股骨头无菌性坏死的治疗方案都具有各自的优势和局限性,早期诊断、早期治疗已成为共识,如何保留患者的股骨头也一直是临床治疗的核心。 目的：综述目前国内外对股骨头无菌性坏死的治疗现状,主要分析多孔钽金属棒治疗早期股骨头无菌性坏死的研究进展。 方法：由第一作者检索1985年1月至2013年8月的PubMed数据库,在标题和摘要中以“avascular necrosis”,“osteonecrosis of the femoral head”和“tantalum rod”为主题词检索有关股骨头无菌性坏死发病机制、风险因素、分型及治疗等方面的相关文献。排除与研究目的相关性差以及内容重复的文献,最后选择42篇进行归纳总结。 结果与结论：治疗股骨头无菌性坏死的关键在于早期诊断和早期干预。髓芯减压+多孔钽金属棒置入是一项治疗股骨头尚未塌陷的早期股骨头无菌性坏死的微创技术,能延缓或防止早期股骨头坏死进一步发展,但对于出现股骨头塌陷、继发性髋关节骨关节炎的晚期患者效果较差。虽然多孔钽金属棒置入在临床已开始应用,有些报道也显示出令人振奋的短期疗效,但其在临床治疗经济学方面的效果仍需要通过多中心、随机、双盲对照研究来权衡。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接：     

体外冲击波疗法结合同种异体骨钉治疗成人股骨头缺血性坏死

目的探讨体外冲击波疗法（ESWT）结合同种异体骨钉治疗成人股骨头缺血性坏死的疗效。方法2003年7月～2007年1月,采用体外冲击波或结合同种异体皮质骨钉植入术治疗54例（84髋）股骨头缺血性坏死患者并随访观察。男41例,女13例;年龄20～61岁,平均30岁。按Ficat分期,Ⅱ期55髋,Ⅲ期29髋。其中40髋（Ⅱ期27髋,Ⅲ期13髋）,采用ESWT结合同种异体骨钉治疗,治疗后6、12、24个月复查双髋X线、MRI及髋关节Harris评分（HHS）。44髋（Ⅱ期28髋,Ⅲ期16髋）患者采用单纯ESWT治疗。对两组治疗结果进行统计学分析。结果随访24～29个月,平均25．7个月。二者治疗后Harris评分分别为83．71±18．76和57．20±12．82,二者比较差异有统计学意义妒〈0．01）：影像学X光片评估：ESWT结合同种异体骨钉术后随访股骨头塌陷12髋,塌陷率为30％,单纯ESWT治疗随访股骨头塌陷25髋,塌陷率为56．8％。结论体外冲击波疗法结合同种异体骨钉是治疗中期ONFH的方法之一,它不但具有冲击波疗法促进骨愈合作用,而且复合骨钉移植可起到骨传导及骨支撑作用,近期可以减少股骨头塌陷发生。     

骨小梁金属AVN重建棒植入配合中药治疗早期股骨头坏死26例

背景:骨小梁金属AVN重建棒为多孔钽金属假体,为MichaelChristie设计并发明,自2001-11在欧洲上市以来已有大量的假体植入,取得良好效果。中医药治疗股骨头坏死具有一定优势,特别是对早、中期患者的疗效良好,关键在于早期诊断与早期治疗是取得良好疗效的关键。目的:观察骨小梁金属AVN重建棒植入配合中药治疗早期股骨头缺血性坏死的临床效果。方法:选择2005-02/2007-06河南省中医院骨科收治的早中期股骨头缺血性坏死患者26例,男16例,女10例;年龄18～56(40.0±2.2)岁;单侧股骨头坏死21例,双侧坏死5例;Ficat分期,Ⅰ期14例,Ⅱ期12例。所有患者均有患髋疼痛,腹股沟中点处深在性压痛,髋关节活动受限,能扶单拐行走者15例,扶双拐行走者8例,卧床不能行走者3例。26例术前采用Harris评分平均(61.5±1.0)分。全部患者均采用骨小梁金属AVN重建棒植入配合中药治疗。结果与结论:26例患者均获得随访,随访时间1～2年。26例患者均顺利植入骨小梁金属AVN重建棒,植入时间10～18min,平均15min。植入后患者切口均Ⅰ期愈合。术后1年Harris评分平均(87.3±1.3)分,与植入前相比差异有显著性意义(P0.05),优21例,良3例,可2例,优良率92%。植入后均无深静脉栓塞、泌尿系统、肺部感染及压疮等发生。提示骨小梁金属AVN重建棒植入配合中药是治疗早期股骨头缺血性坏死的有效方法。     

脐带间充质干细胞与纳米仿生骨材料联合治疗早期股骨头缺血坏死的中期疗效观察

目的回顾性分析脐带间充质干细胞与纳米仿生骨材料联合治疗早期股骨头缺血坏死的中期临床疗效。方法选定诊断为股骨头坏死(Osteonecrosis of the femoral head,ONFH)(FicatⅡ期),接受纳米仿生骨材料髓芯减压棒联合脐带间充质干细胞移植治疗的成人患者。本组共12例(12髋),患者年龄22~53岁,平均39.4岁,男9例,女3例。术前、术后采用Harris评分系统进行患髋评分并进行配对检验。通过其影像学改变进行疗效评估。结果本组11例患者获得完整随访,Harris评分由术前(54.16±4.23)分提高到术后24个月随访时的(82.68±2.05)分(0.05),所有获得随访的患者均未发现减压棒脱出,未出现股骨头明显坏死塌陷。结论髓芯减压基础上应用新型纳米仿生骨材料联合脐带间充质干细胞移植治疗早期股骨头坏死的中期临床疗效满意,远期临床疗效仍需进一步观察随访。     

同种异体腓骨植入治疗股骨头坏死132髋2.5年随访

背景：股骨头坏死保存自身关节的治疗方法较多。带血管游离腓骨植入后需要长期卧床、创伤大、出血多,植入后并发症多;金属钽棒置入对后续人工关节置换带来困难。 目的：探讨带孔同种异体腓骨植入治疗股骨头坏死的近期临床疗效及其适应证。 方法：纳入股骨头坏死患者中的103例(132髋),平均43.2岁(20-70岁),根据Steinberg分期：Ⅰ期13髋,Ⅱ期53髋,Ⅲa期40髋,Ⅲb期26髋。应用股骨头钻孔减压联合带孔同种异体腓骨植入。植入前、后均采用Harris评分系统对髋关节功能评估;植入后3,6,12,24个月摄正侧位X射线平片,观察股骨头修复情况以及坏死进展并加以分析。 结果与结论：所有患者均随访2.0-2.5 年,平均2.3年。植入前Harris平均68.5(64.7±7.8)分,植入后提高至平均91.4(91.0±2.6)分,治疗前后差异有显著性意义(P < 0.05)。随访患者24个月时候的X射线平片示106髋有明显改善,7髋无变化,10髋恶化,9髋失败,总有效率为85.6%,恶化及失败髋关节均为SteinbergⅢ b期。所有患者均无严重并发症。说明钻孔减压联合带孔同种异体腓骨植入治疗成年人早期股骨头坏死效果显著,尤其适用于青壮年SteinbergⅠ期,Ⅱ期,Ⅲa期。     

多孔钽棒改善股骨颈骨折术后股骨头缺血性坏死患者的髋关节功能：随机对照临床试验方案

BACKGROUND:After femoral neck fracture, avascular necrosis of the femoral head occurs because of insufficient blood supply to the femoral head, resulting in increased difficulty in treatment, and greatly influencing the recovery of hip joint function. Core decompression and bone grafting is a common treatment method of avascular necrosis of the femoral head. A porous tantalum rod is a bone trabecula-like metal implant that is used to support weight-bearing area of necrotic bone, prevent further collapse of the necrotic area, and thereby exhibits favorable effects in the early treatment of avascular necrosis of the femoral head. Few randomized controlled studies are reported on porous tantalum rod implantation for treatment of avascular necrosis of the femoral head after femoral neck fracture surgery. OBJECTIVE: To investigate whether porous tantalum rod implantation can improve the hip joint function of patients with avascular necrosis of the femoral head subjected to femoral neck fracture surgery. METHODS: This is a prospective, single-center, randomized, controlled, open trial, which will be performed in the Department of Orthopedic Trauma, Qinghai University Affiliated Hospital, China. A total of 100 patients with avascular necrosis of the femoral head subjected to femoral neck fracture surgery will be randomly assigned to undergo core decompression and porous tantalum rod implantation (experimental group, n=50) or only core decompression (control group, n=50). All patients will be followed up for 1 year. Primary outcome measure is the percentage of patients whose hip joint function is graded as excellent as per Harris scores 12 months after surgery in total patient number in each group, which will be used to evaluate the recovery of hip joint function. Secondary outcome measures include (1) the percentage of patients with excellent hip joint function 1 and 6 months after surgery in total patient number in each group; (2) Visual Analogue Scale spine score prior to and 1, 6 and 12 months after surgery, which will be used to evaluate the severity of pain; (3) the percentage of patients presenting with femoral head collapse, prosthesis loosening and peri-prosthesis infection 6 and 12 months after surgery, which will be used to evaluate the biocompatibility of biomaterial with host; and (4) incidence of complications 6 and 12 months after surgery, which will be used to evaluate the safety of porous tantalum rod implantation. This study protocol has been approved by the Medical Ethics Committee of Qinghai University Affiliated Hospital of China (approval number: QHY1016B) and will be performed in accordance with the guidelines of the Declaration of Helsinki, formulated by the World Medical Association. Signed informed consent regarding trial procedure and treatment will be obtained from each patient.  DISCUSSION: This study is powered to validate the biocompatibility and therapeutic effects of porous tantalum rods in the treatment of avascular necrosis of the femoral head after femoral neck fracture surgery, which hopes to provide a novel persuasive surgical treatment method for this disease.     

钽金属棒置入修复股骨头坏死的三维有限元分析

BACKGROUND: Core decompression and tantalum rod implantation after core decompression are common methods to repair early and middle stages of necrosis of femoral head, can effectively control and even reverse the progress of necrosis of the femoral head. Comparison of mechanical support and curative effect of femoral head after operation deserves further investigation. OBJECTIVE: To explore the effect of core decompression on mechanical pulp femoral head support by using the finite element analysis and the advantages of tantalum implant treatment in the repair of avascular necrosis of the femoral head.  METHODS: The right femur of healthy adults was chosen as the research object, and CT scanning was conducted to get the images of cross-sections. The images were then inputted into computer to get contour of femur and rebuild three-dimensional model. Distal end of femur was completely fixed, the angle of the top of femoral head and the femoral shaft was 25°, and 570 N pressure on the femoral head was applied according to the three-dimensional space distribution of femur force under physiological state. Three-dimensional finite element models were calculated to get the collapse values in different necrotic areas of the femoral head before and after different repair methods. RESULTS AND CONCLUSION: After core decompression, collapse values were apparently increased, especially in the weight-bearing area. With increased range of necrosis, collapse values also increased. After core decompression, collapse values decreased obviously after porous tantalum rod implantation. Although core decompression could remove dead bone, decompression itself further reduced the mechanical properties of the femoral head and changed the original femoral head support. On the basis of core decompression, porous tantalum rod provided safe and effective mechanical support for femoral head and subchondral bone plate, could effectively prevent collapse and provide conditions for the restoration of bone tissue.      

多孔钽金属置入治疗早期股骨头坏死的研究与应用现状

BACKGROUND: Porous tantalum rod implantation is a relatively new technique that has been applied to patients with early-stage osteonecrosis of the femoral head, but its efficacy is mixed. OBJECTIVE: To review the etiology and pathogenesis of osteonecrosis of the femoral head and the latest research progress of porous tantalum rod implantation. METHODS: A computer-based search of PubMed and CNKI database was performed for articles related to the pathogenesis of osteonecrosis of the femoral head and porous tantalum rod implantation published from 1985 to 2015. The key words were “osteonecrosis of the femoral head, etiology, porous tantalum rod, tissue engineering, nanomaterials, bone marrow mesenchymal stem cells” in Chinese and English in the title and abstract. Finally, 67 articles were included in result analysis. RESULTS AND CONCLUSION: The porous tantalum rod is considered effective for early-stage osteonecrosis of the femoral head patients in short term. More recently, the porous tantalum rod implantation combined with other therapies, such as stem cell transplantation, has developed for long-term reserving the hip in early-stage osteonecrosis of the femoral head. Therefore, we need further clinical trials for long-term follow-up to give a final clinical and socioeconomic assessment of porous tantalum rod implantation. Moreover, the most effective approach and position of porous tantalum rod implantation have not been reported until now.       

髓芯减压联合同种异体骨打压植骨治疗早期股骨头坏死的疗效观察

目的 探讨髓芯减压联合同种异体骨打压植骨治疗早期股骨头坏死的临床疗效。方法 采用随机数字表法将2016年1月~2017年6月于我院诊治的早期股骨头坏死患者40例分为两组,各20例。对照组采用多孔钽棒植入治疗,观察组行髓芯减压联合同种异体骨打压植骨治疗,比较两组患者治疗前后Harris髋关节评分及临床疗效。结果 治疗前两组患者Harris评分差异无统计学意义（P＞0.05）,治疗后观察组Harris评分优于对照组[（82.56±8.42）分 vs （74.53±7.31）分],差异有统计学意义（P＜0.05）;观察组治疗总有效率高于对照组,组间差异有统计学意义（P＜0.05）。结论 早期股骨头坏死患者选择髓芯减压+同种异体骨打压植骨治疗效果显著,可充分改善患者髋关节功能,促使患者尽早康复,值得临床上广泛应用。     

多孔钽棒植入术治疗股骨头坏死的中长期疗效及术后失效行THA与初次行THA疗效比较

目的评估接受髓心减压、同种异体骨植骨、多孔钽棒植入术(简称多孔钽棒植入术)治疗的股骨头坏死(ONFH)患者的中长期临床疗效以及术后失效是否会影响后续全髋关节置换术(THA)的临床效果。 方法选择2008年1月至2011年12月广州中医药大学髋关节研究中心收治的非创伤性ONFH患者38例40髋。所有患髋均行多孔钽棒植入术。在透视下先行股骨头内髓内减压，清除部分死骨并行同种异体骨植骨，最后旋入1枚多孔钽棒。多孔钽棒植入术失效后行THA的患者设为二次手术组(n＝12)，二次手术组行THA时，行股骨颈截骨同时截断植入钽棒，同时取出近端残端。按照1例二次手术组患者匹配4~6例性别、年龄相近(±15岁)原则纳入非创伤性ONFH[国际骨循环研究会(ARCO) Ⅳ期]既往无保髋手术史、初次行THA的患者57例，设为对照组。对照组患者行初次THA。分析及比较总体患者、不同ARCO期、不同日本骨坏死调查委员会(JIC)型ONFH患者多孔钽棒植入术术后24、60、96个月的保髋率。评估总体患者、不同ARCO期、不同JIC型ONFH患者多孔钽棒植入术术后24、60、96个月的Harris髋关节评分。同时比较二次手术组与对照组患者术前、术后60个月的Harris髋关节评分。收集所有患者患髋的正位、蛙位X线片，以及MRI和CT扫描数据，采用改良的Nish Ⅱ方法评估髋关节塌陷的进展并计算末次随访影像学进展率；比较末次随访时影像学进展的不同ARCO期、不同JIC型ONFH患者的保髋率。数据行Wilcoxon符号秩检验、Mann Whitney U检验与χ²检验。 结果接受多孔钽棒植入术后平均随访(117.1±4.1)个月。术后24、60、96个月的保髋率分别为92.5%(37/40)、82.5%(33/40)、75%(30/40)。术后24、60个月，ARCO Ⅱ期患者与ARCO Ⅲ期患者保髋率比较，差异均无统计学意义(χ²＝0.001、1.396，P＝1.000、0.457)；术后96个月，ARCO Ⅱ期患者保髋率[89.6%(23/27)]比ARCO Ⅲ期患者[53.8%(7/13)]高，差异有统计学意义(χ²＝4.596，P＝0.042)。术后24、60个月，JIC C1型患者与JIC C2型患者保髋率比较，差异均无统计学意义(χ²＝0.041、0.145，P＝0.839、0.703)；术后96个月，JIC C1型患者保髋率[83.3%(25/30)]比JIC C2型患者[50.0%(5/10)]高，差异有统计学意义(χ²＝4.444，P＝0.035)。多孔钽棒植入术术前，ONFH患者Harris髋关节评分为59 (55，61)分，术后24、60、96个月Harris髋关节评分分别为72(61，80)、89(82，91)、94(91，96)分，比较差异有统计学意义(Z＝4.627，P<0.05)。术前，术后60、96个月，ARCO Ⅱ期患者与ARCO Ⅲ期患者Harris髋关节评分比较，差异均无统计学意义(Z＝123.5、180.0、101.0，P＝0.114、0.994、0.871)；术后24个月，ARCO Ⅱ期与ARCO Ⅲ期患者Harris髋关节评分比较，差异有统计学意义(Z＝100.0，P＝0.043)。术前，术后96个月，JIC C1型患者与JIC C2型患者Harris髋关节评分比较，差异均无统计学意义(Z＝164.0、90.0，P＝0.279、0.355)；术后24、60个月，JIC C1型患者与JIC C2型患者Harris髋关节评分比较，差异均有统计学意义(Z＝96.5、93.0，P＝0.042、0.038)。末次随访总体影像学进展率为55.0%(22/40)。ARCO Ⅱ期患者影像学进展率为48.1%(13/27)，与ARCO Ⅲ期患者[69.2%(9/13)]相比，差异无统计学意义(χ²＝1.255，P＝0.391)；JIC C1型患者影像学进展率为46.7% (14/30)，与JIC C2型患者[80%(8/10)]相比，差异无统计学意义(χ²＝1.835，P＝0.086)。影像学进展的ARCO Ⅲ期患者保髋率[11.1%(1/9)]与影像学进展的ARCO Ⅱ期患者保髋率[76.9%(10/13)]相比，差异有统计学意义(χ²＝3.035，P＝0.024)。影像学进展的JIC C2型患者保髋率[12.5%(1/8)]与影像学进展的JIC C1型患者髋关节的保髋率[71.4%(10/14)]相比，差异有统计学意义(χ²＝2.659，P＝0.009)。二次手术组、对照组接受THA术前、术后60个月Harris髋关节评分比较差异均有统计学意义(Z＝6.511、7.471，P<0.05)。术后60个月，二次手术组、对照组Harris髋关节评分分别为88 (85，93)、94 (92，96)分，比较差异均无统计学意义(Z＝-1.711，P＝0.090)。 结论多孔钽棒植入术治疗ONFH在中长期的随访中，ARCO Ⅱ期、JIC C1型患者保髋率较高，ARCO Ⅲ期或JIC C2型患者效果一般，应用该技术的关键在于选择合适的患者。晚期ONFH患者行THA和多孔钽棒植入术失效后接受THA的患者的临床效果相似。