股骨侧远端生物固定假体在高龄患者全髋关节翻修中的应用

背景：对高龄患者行人工全髋关节翻修时如何正确选择股骨侧假体固定方式,可否应用组配式股骨假体处理此类难题? 目的：验证股骨侧生物固定型假体在老年人全髋翻修后的效果。 方法：采用远端固定生物型股骨假体对11例75岁以上股骨侧假体松动患者进行翻修。11例股骨骨缺损根据Paprosky分型,Ⅰ型2髋,Ⅱ型2髋,ⅢA型7髋。 结果与结论：11例患者均随访16个月以上,患者Harris评分从翻修前的37分(22~49分)改善至随访结束时的89分(78~92分),优良率>90%,无患者发生再次松动。翻修后X射线片显示假体周围骨质密度和厚度明显增加。提示远端固定生物型假体可在股骨远端髓腔内获得可靠的轴向及抗旋转初始稳定性,尤其适用于伴有近端骨缺损的高龄患者的翻修治疗。     

Accolade TMZF生物型股骨假体用于全髋置换的早期随访

背景：生物型股骨假体的固定方式与骨水泥假体相比,没有水泥-假体分离,水泥套破裂,水泥碎屑引起骨溶解的担忧,长期结果优良,并且假体远期生存率较高。 目的：观察Accolade TMZF生物型股骨柄假体用于全髋关节置换的近期疗效及并发症。 方法：2010年2月至2012年7月采用生物型股骨柄行初次全髋关节置换67例70髋,均采用Accolade TMZF生物型髋关节假体系统,股骨侧假体使用同一款Accolade TMZF生物锥形柄,髋臼侧则采用Secure-fit HA和Trident PSL HA两种髋臼杯行生物学固定。关节头臼摩擦面采用陶瓷-陶瓷组合49髋,陶瓷-聚乙烯组合19髋,金属-聚乙烯组合2髋。置换后根据髋关节影像学资料评估股骨柄假体的生物学固定、假体周围骨溶解及假体下沉情况,并观察髋关节功能、大腿痛及并发症发生情况。 结果与结论：全部病例随访均超过2年。由置换前Harris髋关节评分(32.7±6.2)分改善至末次随访时(89.2±5.1)分。末次随访时大腿轻度疼痛4例(6%),无中重度、极重度疼痛。未见患髋因各种原因失败需翻修。X射线片结果示,最终随访时无假体移位或松动现象,股骨侧可见假体周围均为骨性固定,假体下沉< 2 mm者1髋,其余均无假体下沉。术中无血管、神经损伤等并发症出现,但因假体置入时发生股骨距劈裂骨折而采用钢丝环扎4髋。置换后无下肢深静脉血栓形成,无假体周围骨折。提示Accolade TMZF生物型股骨柄用于初次全髋置换的早期疗效满意,可以有效改善髋关节功能。但随访时间较短,中远期疗效需进一步观察。 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：     

非骨水泥假体柄在髋关节股骨侧翻修中的应用

目的：探讨非骨水泥假体柄在髋关节股骨侧翻修中的应用。方法回顾性分析2008年5月—2013年8月108例全髋关节置换术后及假体周围感染术后股骨侧采用非骨水泥假体柄翻修患者的临床资料,记录术中骨折、截骨、股骨远端开窗、股骨假体力线情况,术后定期随访。采用Harris方法评估髋关节功能,视觉模拟评分( VAS)评估术前及术后髋关节疼痛程度,根据X线片判断假体稳定性、骨愈合及骨长入情况。结果对本组病例进行了0.5~5年随访,平均随访33.4个月;术后X线检查显示术后3~6个月可见骨长入,6个月以上骨愈合及长入情况良好;随访期间未出现感染迹象,下地行走良好,无假体脱位、骨折及假体松动发生。术前Harris评分为(48.76±13.17)分,疼痛VAS评分为4.00(3.00,6.00)分。末次随访时Harris评分为(87.11±6.69)分,VAS评分为0.00(0.00,1.00)分,与术前比较差异均有统计学意义(P值均<0.05)。结论非骨水泥假体柄股骨假体在髋关节的股骨侧翻修术中有一定优势,且对股骨近端部分缺损患者同样有良好疗效。     

人工全髋翻修及非骨水泥假体的应用:5年同一机构41例41髋资料回顾

背景:随着人工全髋关节置换后随访时间的延长,需行翻修者逐渐增多。而人工关节出现机械性松动前常已发现假体周围骨溶解,它将随着时间的推移而逐渐加重,不断加重的骨溶解会引起人工关节松动,最终导致关节翻修。目的:观察非骨水泥假体在人工全髋关节置换后翻修术中的应用效果。方法:对2004/2009沈阳市骨科医院收治的人工关节置换后患者41例(41髋)进行了翻修,再置换关节为北京普鲁士钢研外科植入物有限公司提供的旋入式全髋关节及美国史塞克有限公司生产的非骨水泥压配式全髋关节。41个髋臼中无髋臼骨缺损8髋,GustilloⅠ～Ⅱ型髋臼松动17髋,Ⅲ型髋臼松动8髋,对上述患者直接用纯钛螺旋臼成型或髋臼底加用颗粒植骨;Ⅳ型髋臼松动骨缺损8髋,采用颗粒植骨,钛网重建髋臼,骨水泥髋臼假体成型。取出假体柄后试情况置入非骨水泥普通假体柄或加长柄,根据试骨缺损情况进行假体周围植骨,必要时捆绑带固定。结果与结论:髋臼侧进行了钛网重建植骨的8例患者翻修后3d可以下地非负重拄拐行走,其余患者均可以于翻修后3d下地负重行功能练习。翻修后随访6～66个月,无假体移位下沉等不稳迹象,无需要再重新翻修的病例,Harris评分由翻修前的平均32.6分增加到翻修后的平均88.1分。随访X射线片显示部分患者骨质改建,密度增加,未发现假体周围有新出现亮带的患者。结果提示,采用非骨水泥假体对髋关节进行翻修后,近期可取得较好的修复效果,远期效果有待随访。     

非骨水泥型广泛涂层长柄假体在髋关节翻修股骨轻中度缺损重建中的应用

背景：股骨侧轻中度缺损翻修处理目前没有统一的解决方法。 目的：评价非骨水泥型广泛涂层长柄假体在股骨轻中度缺损的髋关节翻修中应用的临床效果。 方法：11例非感染性股骨侧轻中度骨缺损患者单髋初次翻修,均采用非骨水泥型广泛涂层长柄假体,其中8例患者行干燥同种异体颗粒植骨,3例患者未植骨。 结果与结论：11例均获随访,最短随访时间10个月,最长随访60个月。翻修后切口均为Ⅰ期愈合。末次随访时Harris 评分好于翻修前(P < 0.01)。翻修后2年1例股骨假体周围出现3 mm 透亮带,无明显临床症状,未作处理。患者均未见骨溶解,干燥同种异体颗粒骨融合时间3~9个月,平均5个月。提示,采用非骨水泥型广泛涂层长柄假体对股骨轻中度缺损进行髋关节翻修,可实现假体初始稳定与固定,近期临床疗效满意。     

解剖型生物固定股骨柄假体的设计特征与临床应用效果

背景:Ribbed解剖型生物固定柄设计符合股骨生物力学特性,具有初始稳定性好、骨长入快及应力遮挡低等优点,获得满意的临床疗效。目的:探讨Ribbed解剖型生物固定股骨柄假体(Ribbed柄)的设计特征及其与临床疗效的关系。方法:对2010年3月至2012年3月因髋关节疾病采用Ribbed柄行全髋关节置换的患者进行回顾性分析。共获完整资料者52例(52髋),男20例,女32例;置换时年龄22-78岁,平均59岁。随访时间2-4年。评估置换前后Harris评分、置换后大腿疼痛率、术中骨折发生率、切口愈合情况、脱位及翻修等。影像学重点评估股骨柄髓腔充填率、股骨柄假体下沉、假体周围放射学透亮线、骨长入、应力遮挡及骨溶解等。结果与结论:术中股骨骨折发生率为6%;所有切口均一期愈合;无髋关节脱位及翻修病例;大腿疼痛率为6%,均于置换后1年消失;末次随访时,平均Harris评分由置换前48分提高到末次随访时96分。置换后X射线片示所有患者股骨髓腔充填满意,平均充填率:正位片上干骺端、中段和远端分别为91%,88%和86%,侧位片上干骺端、中段和远端分别为88%,85%和81%;末次随访时,49髋(92%)为稳定性骨长入固定,3髋为稳定性纤维长入固定,股骨侧及髋臼侧假体周围均未见骨溶解;5髋(10%)发生股骨柄假体下沉,但均小于2 mm;所有患者均出现不同程度的应力遮挡现象,其中1度31髋、2度19髋、3度2髋,无4度应力遮挡发生。提示Ribbed柄设计符合生物学固定要求,具有初始稳定性好、骨长入快及应力遮挡低等优点,可获得满意的临床疗效。     

Tri-Lock骨保留型股骨柄假体的设计特征与临床应用

背景：新一代Tri-Lock BPS型股骨柄假体在原有设计基础上得到进一步改进,目前尚少有报道总结其设计特征及手术技巧。 目的：总结Tri-Lock BPS型股骨柄假体的设计特征及其在全髋关节置换中的应用。 方法：选择Tri-Lock BPS柄行全髋关节置换的患者9例(10髋),其中股骨头坏死8例,创伤性关节炎1例。置换前后的髋关节功能和置换后股骨柄假体的生物学固定分别按Harris标准和Engh标准评定,置换后股骨柄假体的初始固定质量按Healy标准评定,分析透亮线、骨溶解的发生率,分别按Delee和Gruen分区描述髋臼和股骨侧的骨长入,按D’Antonio法测量股骨柄假体的下沉,股区痛则采用目测类比评分10分制评定。 结果与结论：10髋置换后X射线片显示股骨柄假体的初始固定均符合优良标准。凡手术满3个月的患者,髋关节功能(Harris评分)均可恢复至平均92分(85~96分),无主诉存在股区痛,无X射线显示的假体松动征。结果证实,Tri-Lock BPS型假体设计更符合人体解剖特征,髋关节功能恢复快,骨量保留多等优点。     

全髋关节翻修术中髋臼骨缺损的处理和髋臼假体的选择

目的探讨全髋关节翻修术中髋臼骨缺损的处理及髋臼假体的选择。方法回顾性分析32例全髋关节翻修术中处理的髋臼骨缺损患者的病例资料,其中男性12例,女性20例;左髋18例,右髋14例;翻修时年龄63~86岁,平均年龄68.8岁。32例患者髋臼行翻修的原因:髋臼假体无菌性松动28例,髋关节习惯性脱位3例,低毒性感染1例。32例患者髋臼均有不同程度骨缺损,按Paprosky分型法:ⅡA型11例,ⅡB型10例,ⅡC型7例,ⅢA型4例。髋臼骨缺损采用不同方式修复,术后通过电话或门诊定期随访,采用Harris评分评估髋关节功能,采用可视疼痛量表(VAS)评分系统进行疼痛评估。复查X射线了解假体的位置及移植骨愈合情况。结果 32例髋臼翻修中,11例ⅡA型骨缺损采用更换生物型大臼杯髋臼假体,10例ⅡB型及7例ⅡC型骨缺损采用颗粒性植骨结合大臼杯生物型髋臼假体,4例ⅢA型骨缺损采用结构性植骨+颗粒性植骨结合生物型大臼杯髋臼假体进行翻修。对全部患者进行术后随访,术后随访时间为4~48个月,平均随访时间36个月。术后12个月平均Harris评分为86.55分,较术前提高41.20分。复查X射线均无假体松动下沉。结论在全髋关节翻修术中,生物型假体有独特优势;充分的术前准备及髋臼侧骨缺损的合理处理和假体的合理选择是手术成功的关键。     

全髋关节翻修术（48例50髋随诊分析）

目的评价人工全髋关节翻修术临床效果。方法自1984年1月～2006年4月,56例58髋行髋关节翻修术,男22例,女34例,年龄36～73岁,平均63岁。初次人工髋关节置换前诊断为股骨颈骨折28例,股骨头缺血坏死18例,髋关节发育不良骨关节炎9例,强直性脊柱炎1例。初次行股骨头置换术9例,其中骨水泥2例,生物型固定7例。全髋关节置换47例49髋。其中骨水泥30髋,生物型固定19髋。术后早期脱位2例,16髋因髋关节严重疼痛,45例47髋因无菌性松动行全关节翻修术。翻修手术中28髋行髋臼植骨,其中自体碎屑植骨17例18髋。自体碎骨屑加异体大块植骨10例。结果资料完整48例50髋获得随访,最长20年,最短4个月,平均随访时间为5年。经随访,患者髋关节基本无疼痛,X线片显示髋臼和股骨柄假体位置满意,无松动和感染征象,髋臼植骨后愈合良好。4例股骨柄假体正位X线片仅1区出现约1mm宽的透亮带,临床检查无松动迹象。Harris评分由术前的平均41.3分(10～70分)提高到术后的平均80.4分(55～97分)。结论全髋关节翻修手术的病例经随访,临床达到满意效果。     

应用钢板和人工骨行全髋关节股骨侧假体翻修11例

背景：对于股骨假体paprosky分型Ⅲ型、Ⅳ型翻修时,大多数学者趋向于采用非骨水泥涂层的长柄翻修假体。但是,关于骨缺损的植骨材料选择、植骨方式、钢板是否可以采用等问题,在骨科界目前尚未有较成熟的意见。 目的：观察同时采用钢板和人工骨进行全髋关节股骨侧假体翻修的疗效。 方法：11例股骨侧假体翻修患者(paprosky分型Ⅲ型8例,Ⅳ型3例)均采用现代无骨水泥技术,记忆合金环抱钢板4例,加压钢板或有限接触钛板2例,锁定钛板5例,所有病例均使用异体或异种颗粒骨进行嵌压植骨、异体骨板结合钢丝或线缆握紧系统器械进行结构重建。翻修前后髋关节功能按Harris评分标准进行评价,观察患者手术切口愈合及髋关节活动情况。 结果与结论：11例患者均获得随访,平均13.6个月,Harris评分优良9例(82%),可1例(9%),差1例(9%)。提示患者股骨侧假体翻修中,同时应用钢板和人工骨进行髋关节股骨侧翻修,能让股骨侧paprosky分型Ⅲ型和Ⅳ型缺损合并假体周围骨折固定快且牢固,生物型假体即刻达到稳定,手术时间和创伤减少,并允许患者早期进行功能锻炼。     

Influence of implant length and bone defect situation on primary stability after distal femoral replacement in vitro

Background

Aseptic loosening is the major reason for failure of distal femoral replacement using current modular megaprostheses. Although the same stems are used for proximal and distal replacement, survival rates in clinical studies with distal reconstruction were lower within the same system compared to proximal reconstruction. We analyzed whether primary stability as presupposition for long-term fixation can be achieved with a current tapered stem design. Additionally, we hypothesized that stem length affects primary stability depending on bone defect situations.

Total hip arthroplasty using S-ROM prosthesis for dysplastic hip

Purpose

The purpose of this study was to evaluate the clinical and radiological results of total hip arthroplasty using a proximal modular femoral stem in patients who had secondary coxarthrosis associated with a dysplastic hip.

Materials and Methods

Forty-two patients (45 hips) with secondary coxarthrosis were evaluated after undergoing primary total hip arthroplasty using an S-ROM proximal modular femoral stem. The average follow-up was 80 months (range: 60 to 96 months). Clinical and radiological assessments were performed based on the Harris hip score and the radiological changes around the prosthesis.

Results

The average Harris hip score improved from 52.2 points to 88.5 points. All femoral stems showed stable fixation; there were 37 cases by bony ingrowth and 8 cases by stable fibrous ingrowth. Neither osteolysis nor progressive radiolucent lines around the femoral stem were found at the last follow-up. Forty-one hips (91.9%) revealed excellent or good clinical results at the most recent follow-up.

Conclusion

For advanced secondary coxarthrosis, total hip arthroplasty with the use of the proximal modular femoral stem yielded good mid-term results with respect to the clinical and radiological criteria.     

In-vitro biomechanical evaluation of stress shielding and initial stability of a low-modulus hip stem made of β type Ti-33.6Nb-4Sn alloy

Stress shielding-related proximal femoral bone loss after total hip arthroplasty occurs because of the different stiffness of metallic alloy stems and host bone. To overcome this, we fabricated a low-modulus cementless hip stem from β-type Ti-33.6Nb-4Sn alloy (TNS). Then we evaluated its stiffness, stress shielding, and initial stability compared with a similar Ti-6Al-4V alloy stem. Stiffness was determined by axial compression and cantilever-bending tests. Thirteen triaxial strain gages measured cortical strain. Stress shielding was defined as the percentage of intact strain after stem insertion. To evaluate initial stability, displacement transducers measured axial relative displacement and rotation. Intact and implanted femurs underwent single-leg-stance loading. Axial stiffness was 56% lower in the TNS stem than in the Ti-6Al-4V stem, and bending stiffness of the TNS stem decreased gradually from the proximal region to the distal region, being ≤53% that of the Ti-6Al-4V stem, indicating gradation of Young's modulus. The TNS stem decreased stress shielding in the proximal calcar region (A1: 83%, B1: 85% relative to intact cortical strain) without affecting the proximal lateral region (B3: 53%). The initial stabilities of the stems were comparable. These findings indicate that the TNS stem with gradation of Young's modulus minimizes proximal femoral bone loss and biological fixation, improving long-term stability.     

Long-term follow-up results of a second-generation cementless femoral prosthesis with a collar and straight distal fixation channels

Purpose

We evaluated the results of more than 10 years of follow-up of total hip arthroplasty using a second-generation cementless femoral prosthesis with a collar and straight distal fixation channels.

Materials and Methods

One hundred five patients (129 hips) who underwent surgery between 1991 and 1996 for primary total hip arthroplasty using cementless straight distal fluted femoral stems were followed for more than 10 years. Ninety-four hips in 80 patients were available for clinical and radiologic analysis. The mean age at the time of surgery was 47 years, and the mean duration of follow-up was 14.3 years.

Results

The mean Harris hip scores had improved from 58 points to 88 points at the time of the 10-year follow-up. Activity-related thigh pain was reported in nine hips (10%). At the last follow-up, 93 stems (99%) were biologically stable and one stem (1%) was revised because of loosening. No hip had distal diaphyseal osteolysis. Proximal femoral stress-shielding was reported in 86 hips (91%). We found no significant relationship between collar-calcar contact and thigh pain, stem fixation status, or stress-shielding. The cumulative survival of the femoral stem was 99% (95% confidence interval, 98-100%) after 10 years.

Conclusion

The long-term results of total hip arthroplasty using a second-generation cementless femoral prosthesis with a collar and straight distal fixation channels were satisfactory; however, the high rate of proximal stress-shielding and the minimal effect of the collar indicate the need for some changes in the stem design.     

Tri-Lock 骨保留型股骨柄与Corail柄在Crowe Ⅰ型发育性髋关节发育不良治疗中的应用效果比较

目的 比较Tri-Lock骨保留型股骨柄(BPS)与Corail股骨柄治疗成人发育性髋关节发育不良(DDH)的临床应用价值。方法 回顾性分析。纳入2015年1月-2019年4月贵州省人民医院骨关节外科病区Crowe Ⅰ型DDH患者35例(40髋),其中男5例(5髋)、女30例(35髋),年龄26~77(60.81±11.72)岁,均采用全髋关节置换术(THA)治疗。按照使用的股骨柄假体类型不同分为两组:观察组17例20髋,采用Tri-Lock BPS;对照组18例20髋,采用Corail股骨柄。对比两组患者的性别、年龄、髓腔闪烁指数(CFI),比较两组患者术后股骨柄初始稳定性、手术前后双下肢绝对长度差及股骨小转子最宽部骨量保留的面积,使用Mimics 17.0测量大小转子间骨量保留体积,并记录与股骨柄相关并发症。术后第2日使用视觉模拟评分(VAS)评估髋部疼痛程度,术后12周按照Harris髋关节评分(HHS)标准评价整体疗效。结果 两组患者性别、年龄、CFI等一般资料比较差异均无统计学意义(P值均>0.05)。术后随访6~18个月,平均12.6个月。患者的股骨柄初始稳定性以及术前术后双下肢绝对长度差组间比较,差异均无统计学意义(P值均>0.05);观察组患者的股骨小转子最宽部骨量保留的面积[(6.28±0.32)cm²]、大小转子间骨量保留体积[(30.25±0.81)cm³]均大于对照组患者[(5.63±0.14)cm²、(17.74±0.33)cm³],差异均有统计学意义(t=8.313、64.099, P值均＜0.01)。术后第2天髋部疼痛VAS、双下肢绝对长度差、股骨柄的初始稳定性观察指标组间比较,差异均无统计学意义(P值均>0.05);术后12周,观察组与对照组HHS总分及其中髋部疼痛评分比较差异均有统计学意义(t=2.098、2.432, P值均<0.05),但髋关节功能、运动及肢体畸形评分比较差异均无统计学意义(P值均>0.05)。观察组患者并发症发生率(5.0%,1/20)低于对照组(25.0%, 5/20),但差异无统计学意义(χ²=1.765, P>0.05)。结论 Tri-Lock BPS较Corail股骨柄假体用于治疗Crowe Ⅰ型DDH THA中,具有更加微创、更好的临床效果和更多的股骨近端骨量保留的优势,且不增加手术并发症。     

Influence of offset stem couplers in femoral revision knee arthroplasty: a radiographic study

We questioned whether the use of offset femoral stem would result in modifying the posterior femoral condylar offset (PFCO) in revision knee arthroplasty (RTKA). We measured both PFCO and stem alignment on lateral radiographs of two cohorts: 91 knees with straight stems and 35 knees with offset coupled stems. A higher PCOR was observed in knees with an offset stem compared to knees with straight stem. Knees with an offset stem had a better alignment within the intramedullary canal. Our conclusion is that the use of a modular offset coupler with femoral stem in RTKA compared to a modular straight stem both increases the posterior condylar offset and improves alignment of the stem within the intramedullary canal.     

Clinical evaluation of a new total hip prosthetic design: 100 consecutive cementless total hip arthroplasties using Sulzermedica's "Natural Hip" with two- to six-year clinical and radiographic follow-up

One hundred consecutive total hip arthroplasties were performed on 96 patients (age range 30 to 82 years) using the "Natural Hip" design of Sulzermedica (Austin, Texas). Follow up of the clinical and radiographic results with a minimum of 2 years is reported. Twelve patients were excluded for the lack of follow-up data, leaving 88 hips to study. All but three of the stems were used cementless, regardless of patient age or osteoporosis, as long as surgical stability was obtained. No stems were revised for loosening or pain. The only revisions were for infection (2), and minimal bone loss occurred with removal of this proximal ingrowth stem. Thigh pain was present in only one patient at 2 years, and none with longer follow-up. There were no cases of osteolysis, proximal stress shielding, or aseptic radiolucent lines with the cementless stems.     

骨水泥型和生物型股骨假体半髋置换修复高龄股骨颈骨折

背景：高龄患者移位的股骨颈骨折可采用人工股骨头置换修复,但该患者群体骨量往往不佳,采用骨水泥或生物型股骨假体一直存在争论。 目的：对比分析高龄移位型股骨颈骨折患者采用骨水泥及生物型股骨假体半髋置换的效果。 方法：2011年1月至2012年12月采用骨水泥型股骨假体半髋置换修复高龄移位型股骨颈骨折26髋,采用生物型股骨假体治疗同类型患者30髋。对比两组患者手术时间、术中出血量、置换后引流量以及并发症发生情况。置换后采用Harris评分系统进行髋关节临床功能评价。 结果与结论：随访时间20-44个月,两组骨水泥或生物型假体置换后效果均满意,置换后12个月Harris髋关节评分优良率分别为89%和83%,差异无显著性意义。两组术中出血量及置换后引流量差异无显著性意义,但生物型假体组手术时间更短(P < 0.01)。两组患者在随访期内未出现关节松动、下沉、感染及脱位等并发症。表明对于骨量不佳的高龄移位型股骨颈骨折患者,生物型半髋置换能取得与骨水泥型半髋置换同样良好的修复效果。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：     

全髋置换是否重建偏心距对髋关节功能的影响

背景：股骨偏心距的重建对于恢复外展肌力和髋关节周围软组织张力平衡,维持关节稳定,恢复关节功能,减少置换后跛行,降低假体磨损、人工关节脱位等并发症的发生率具有重要意义。 目的：探讨全髋置换的重建偏心距对髋关节功能恢复的影响。 方法：对比分析采用组配式假体(S-ROM)行全髋置换20例20髋患者及采用普通假体(Corail)行全髋置换19例20髋患者的相关资料,通过临床(Harris评分)和X射线测量,对两组患者置换后髋关节功能和偏心距重建率进行对比研究。 结果与结论：纳入患者均无感染、骨折、脱位,无深静脉血栓及神经损伤等并发症。临床随访：在组配式假体和普通假体两组中,股骨偏心距重建组与未重建组置换前Harris评分差异无显著性意义(P > 0.05);置换后12个月及末次随访偏心距重建患者Harris评分高于未重建者(P < 0.05)。髋关节外展活动度大于未重建患者(P < 0.05)。X射线随访：组配式假体和普通假体两组中股骨偏心距重建率差异有显著性意义  (χ²=3.956,P < 0.05),39髋(98%)股骨假体位于中立位,1髋(2.5%)轻度外翻位,两组中股骨偏心距得到重建与未得到重建患者的髋臼假体外展角及前倾角差异均无显著性意义(P > 0.05)。说明组配式假体和普通假体两组中股骨偏心距得到重建患者的髋关节功能和髋关节外展活动度优于未得到重建者,组配式假体偏心距重建率高。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：