The Prevalence Type of the Meniscus Tear in Patients with Anterior Cruciate Ligament (ACL) Injury, in Abu Arish General Hospital, Jazan, KSA

Background: The anterior cruciate ligament (ACL) is the main structure that prevents the forward movement of the tibia about the femur Meniscus tear which is a common finding in patients with anterior cruciate ligament (ACL) injury. Aim: To investigate the prevalence of types of meniscus tears in patients with Anterior Cruciate Ligament (ACL) Injury. Methods: A retrospective study was conducted among inpatients. Clinical evaluation included side-to-side difference in anterior tibial translation (ATT) as measured by a KT-1000 arthrometer (MEDmetric Corp) and a grade of pivot-shift test at final follow-up in all patients. Subsequent meniscal tear was defined by symptoms of joint line pain and/or locking or joint effusion requiring surgical treatment. Results: Most of patients were males (92.6%). The patients were categorized into 5 groups according to age with a mean of age 32.8 ± 10.6. The most common causes of ACL injury were falling down (43.2%), trauma (38.1%) or knee torsion (18.8%). Medial meniscal tear was found in 92 knees (55.7%), while lateral meniscal tear was found in 19 knees (10.8%) and the most common type was the longitudinal tear that was found in 31 knees (17.6%). Similarly, 66.7% of the meniscal flap tears and half of the meniscal bucket-handle tears were significantly associated with loose body (P Conclusion: The present study demonstrated that meniscus tears are more common in individuals with chronic ACL rupture. The main factors contributing to ACL injury were classified as falls, trauma, and knee torsion. Gender was identified as a critical determinant in the etiology of ACL injury. The occurrence of a ramp lesion was associated longitudinal meniscal tears, whereas chodoral injury was associated with the majority of meniscal flap tears and meniscal bucket-handle tears.

Biomechanics of the anterior cruciate ligament:Physiology,rupture and reconstruction techniques

The influences and mechanisms of the physiology,rupture and reconstruction of the anterior cruciate ligament(ACL)on kinematics and clinical outcomes have been investigated in many biomechanical and clinical studies over the last several decades.The knee is a complex joint with shifting contact points,pressures and axes that are affected when a ligament is injured.The ACL,as one of the intra-articular ligaments,has a strong influence on the resulting kinematics.Often,other meniscal or ligamentous injuries accompany ACL ruptures and further deteriorate the resulting kinematics and clinical outcomes.Knowing the surgical options,anatomic relations and current evidence to restore ACL function and considering the influence of concomitant injuries on resulting kinematics to restore full function can together help to achieve an optimal outcome.

Anatomical Risk Factors for Rupture of the Anterior Cruciate Ligament:Magnetic Resonance Imaging Based Knee Joint Assessment

Anterior cruciate ligament (ACL) rupture is one of the most frequently encountered traumatic ligamentous lesions of the knee. Several intrinsic and extrinsic factors are linked to this lesion. Anatomical factors increase the anterior translation of the knee and thus promote the stretching and rupture of the anterior cruciate ligament. Objectives: To determine the anatomical risk factors favouring ACL rupture by comparing morphometric parameters of patients with knee ACL rupture to patients without ACL rupture, as well as the intercondylar notch index and the tibial slopes of the two groups and describing the ruptured ACLs and associated signs. Materials and Methods: We conducted a case-control descriptive analytical study in imaging centres of the General Henri Mondor of Aurillac Hospital Centre in France (CHM) and the Jordan Medical Centre of Yaoundé in Cameroon (CMJ). MRI exam protocols included T1 SE, T2 SE, proton density and Fat Sat sequences, with slices in all three planes. Morphometry knee variables measured in our study were: intercondylar notch index and the tibial slopes. These measurements were obtained from images stored in DICOM format and post processing software OsiriX MD®for CMJ patients and Explore®for CHM patients. Results: The study included 92 individuals, 38 in the case group and 54 in the control group. The mean age was 36.6 years for both groups;35.5 years for the cases and 37.4 years for the controls. The sex ratio was 1.87 men for 1 woman in both groups;2.16 men for 1 woman for the case group. 53% of ACL ruptures are partial, with the predominant direct sign being morphologic and signal abnormalities of the ACL. The most significant indirect sign of ACL rupture was mirror-image bone contusion that was observed in 47.3% of cases. In the case group, the mean lateral tibial slope was 4.003°, whereas it was 2.92°in the control group. The comparison of means was estimated at approximately 0.039 (p Conclusion: The increase in the lateral tibial slope was a risk factor for anterior cruciate ligament rupture in our study population. Intercondylar notch index and medial tibial slope did not show any statistical significant difference.

Patient reported outcome measures in anterior cruciate ligament rupture and reconstruction:The significance of outcome score prediction

BACKGROUND Numerous anterior cruciate ligament(ACL) clinical outcome measures exist.However,the result of one score does not equate to the findings of another even when evaluating the same patient group.AIM To investigate if statistically derived formulae can be used to predict the outcome of one knee scoring system when the result of another is known in patients with ACL rupture before and after reconstruction.METHODS Fifty patients with ACL rupture were evaluated using nine clinical outcome measures.These included Tegner Activity Score,Lysholm Knee Score,Cincinnati Knee Score,International Knee Documentation Committee(IKDC) Objective Knee Score,Tapper and Hoover Meniscal Grading Score,IKDC Subjective Knee Score,Knee Outcome Survey-Activities of Daily Living Scale(KOS-ADLS),Short Form-12 Item Health Survey and Knee Injury and Osteoarthritis Outcome Score.Thirtyfour patients underwent an ACL reconstruction and were reassessed post-operatively.RESULTS The mean total of each of the nine outcome scores appreciably differed from each other.Significant correlations and regressions were found between most of the outcome scores and were stronger post-operatively.The strongest correlation was found between Cincinnati and KOS-ADLS (r=0.91,P<0.001).The strongest regression formula was also found between Cincinnati and KOS-ADLS (R~2=0.84,P<0.001).CONCLUSION The formulae produced from this study can be used to predict the outcome of one knee score when the results of the other are known.These formulae could facilitate the conduct of systematic reviews and meta-analysis in studies relating to ACL injuries by allowing the pooling of substantially more data.

Mesenchymal stem cells and collagen patches for anterior cruciate ligament repair

AIM: To investigate collagen patches seeded with mesenchymal stem cells(MSCs) and/or tenocytes(TCs) with regards to their suitability for anterior cruciate ligament(ACL) repair. METHODS: Dynamic intraligamentary stabilization utilizes a dynamic screw system to keep ACL remnants in place and promote biological healing, supplemented by collagen patches. How these scaffolds interact with cells and what type of benefit they provide has not yet been investigated in detail. Primary ACL-derived TCs and human bone marrow derived MSCs were seeded onto two different types of 3D collagen scaffolds, Chondro-Gide?(CG) and Novocart?(NC). Cells were seeded onto the scaffolds and cultured for 7 d either as a pure populations or as "premix" containing a 1:1 ratio of TCs to MSCs. Additionally, as controls, cells were seeded in monolayers and in co-cultures on both sides of porous high-density membrane inserts(0.4 μm). We analyzed the patches by real time polymerase chain reaction, glycosaminoglycan(GAG), DNA and hydroxyproline(HYP) content. To determine cell spreading and adherence in the scaffolds microscopic imaging techniques, i.e., confocal laser scanning microscopy(c LSM) and scanning electron microscopy(SEM), were applied.RESULTS: CLSM and SEM imaging analysis confirmed cell adherence onto scaffolds. The metabolic cell activity revealed that patches promote adherence and proliferation of cells. The most dramatic increase in absolute metabolic cell activity was measured for CG samples seeded with tenocytes or a 1:1 cell premix. Analysis of DNA content and c LSM imaging also indicated MSCs were not proliferating as nicely as tenocytes on CG. The HYP to GAG ratio significantly changed for the premix group, resulting from a slightly lower GAG content, demonstrating that the cells are modifying the underlying matrix. Real-time quantitativepolymerase chain reaction data indicated that MSCs showed a trend of differentiation towards a more tenogenic-like phenotype after 7 d.CONCLUSION: CG and NC are both cyto-compatible with primary MSCs and TCs; TCs seemed to perform better on these collagen patches than MSCs.

Anterior cruciate ligament reconstruction using a double bundle hamstring autograft configuration in patients under 30 years

BACKGROUND Anterior cruciate ligament reconstruction(ACLR)has a high incidence of re-tear in younger patients.Despite comparable functional outcomes,the incidence of retear using single and double bundle ACLR methods has not been well reported.AIM To hypothesize that double bundle hamstring ACLR has a lower graft rupture rate compared with single bundle hamstring ACLR grafts in young patients.METHODS One hundred and twelve patients<30 years of age at the time of primary double bundle ACLR were eligible for study participation.91(81.3%)could be contacted,with a mean age of 20.4 years(range 13-29)and mean post-operative follow-up time of 59 mo(range 25-107).Telephone questionnaires evaluated the incidence(and timing)of subsequent re-tear and contralateral ACL tear,further surgeries,incidence and time to return to sport,and patient satisfaction.RESULTS Of the 91 patients,there were 6(6.6%,95%CI:1.4-11.7)ACL graft re-ruptures,with a mean time to re-rupture of 28 mo(range 12-84).Fourteen patients(15.4%)experienced a contralateral ACL rupture and 14 patients(15.4%)required further surgery to their ipsilateral knee.fifty patients(54.9%)returned to pre-injury level of sport.Of those<20 years(n=45),4 patients(8.9%,95%CI:0.4-17.3)experienced a re-rupture,with mean time to re-injury 15 mo(range 12-24).Comparative analysis with existing literature and revealed a non-significant Chisquared statistic of 2.348(P=0.125).CONCLUSION A trend existed toward lower graft rupture rates in young patients undergoing double bundle ACLR utilizing a hamstring autograft,compared with rates reported after single bundle ACLR.

The 45-Degree Arthroscope Improves Visualization of the Femoral Attachment of the Anterior Cruciate Ligament

Background: Exposure of the insertion site of the anterior cruciate ligament (ACL) is important for appropriate tunnel placement in ACL reconstruction surgery. However, observing the femoral ACL insertion site via the standard anterolateral portal is sometimes difficult. In this study, we compared views of the femoral ACL insertion site between 30-degree and the 45-degree arthroscopes. Methods: We first inserted the 30-degree and the 45-degree arthroscope into the anterolateral portal of a knee simulator in which we had drawn a lattice pattern on the lateral intercondylar notch based on the quadrant method. Next, we compared the arthroscopic views provided by the 30-degree and 45-degree arthroscopes during ACL reconstruction surgery by measuring the area of the lateral intercondylar notch visible through each of the arthroscopes. Results: In the knee simulator, the 45-degree arthroscope showed the entire area of the lateral intercondylar notch, whereas the 30-degree arthroscope had to be introduced more deeply to show the most superior and posterior quadrant, where the attachment of the anteromedial bundle of ACL is located. During the ACL reconstruction, the area of the lateral intercondylar notch in the field of view was larger through the 45-degree arthroscope than through the 30-degree arthroscope. Conclusion: The 45-degree arthroscope provides a better view of the femoral ACL insertion site via the anterolateral portal, which may be helpful during ACL reconstruction.

Five Strand Hamstring Tendon Autograft for Anterior Cruciate Ligament Reconstruction Provides No Benefit over the Gold Standard Four Strand Repair for Anterior Stability of the Knee: A Prospective Cohort Study

The Four-Strand Hamstring Tendon Autograft has been long established as the gold standard for surgical reconstruction of the Anterior Cruciate Ligament. Some studies have suggested wider grafts, such as a Five-Strand hamstring graft, may provide greater strength and a larger scaffold for incorporation of the graft into the bone tunnels, leading to greater postoperative anterior stability of the knee. 28 (n = 18 Four-Strand and n = 10 Five-Strand) patients with planned ACL reconstructive surgery by a single surgeon were recruited for this study. The KT-1000 Arthrometer (MED metric, CA, USA) was used to quantify AP translation in the subjects’ knees before (T0) and after surgery at 6 (T1) and 12 (T2) weeks. At 12 weeks there was significantly higher (p = 0.01) mean anterior laxity on Maximum Manual Test in the Five- Strand group (9.1 ± 1.7 mm) than the Four Strand Group (6.9 ± 2.3 mm). Further, there were significantly higher mean side-to-side differences (p = 0.01) on Maximum Manual Test in the Five-Strand cohort (5.1 ± 3.5 mm) compared to the Four-Strand cohort (1.9 ± 2.2 mm). A significantly larger positive mean change in anterior laxity (p = 0.02) from 6 - 12 weeks was evident in the Five-Strand group (1.4 ± 0.9) than the Four-Strand group (-0.3 ± 1.9 mm). No significant correlations were seen between graft widths and measures of anterior stability on KT-1000. This study illustrated that there was no benefit to using a Five-Strand Hamstring Tendon Autograft when compared to the gold standard Four-Strand Repair specifically with regards to anterior stability of the knee.

Biomechanical comparison of single-tunnel double-bundle and single-bundle reconstruction of anterior cruciate ligament

Objective To compare the difference in stability of the knee joint after single-tunnel double-bundle and single-bundle anterior cruciate ligament (ACL) reconstruction.Methods Six formalin-soaked specimens of the human knee with retained

Research Progress of Anterior Cruciate Ligament Reconstruction under Arthroscopy

As an important means to treat anterior cruciate ligament (ACL) injury, the reconstruction technology under arthroscopy has made remarkable progress in recent years, evolving gradually from the early traditional open surgery to the minimally invasive surgery under full arthroscopy. At present, it is widely used. Different graft choices (such as autologous hamstring, peroneus longus, artificial tendon, and allogeneic tendon, etc.) and fixation methods (such as metal suspension fixation, interference screw, etc.) have their own characteristics. However, this technology still faces some challenges, such as postoperative complications and the long-term stability of the graft. In terms of future trends, it will develop in a more accurate and personalized direction. New materials and technologies are expected to emerge continuously to improve the surgical effect and the rehabilitation quality of patients, providing stronger support for clinical application and research. This article will conduct a comprehensive review from aspects such as surgical methods, graft selection, fixation methods, ligamentization of the graft, challenges faced, and future trends in ACL reconstruction surgery.

随机生物力学模型分析篮球运动员和普通大学生ACL损伤危险因素的差异

目的:通过建立前交叉韧带(ACL)负荷的生物力学模型分析运动水平和性别对完成侧切动作时ACL损伤概率和危险因素的影响。方法:采集男女大学生篮球运动员和普通大学生完成侧切动作时的运动学、动力学和肌电学数据,运用蒙特卡罗方法获得模拟的ACL损伤试跳数据。通过t检验确定模拟得到的损伤和未损伤动作各指标之间的差异,分析发生损伤的危险因素。采用双因素方差分析确定运动水平和性别对与ACL负荷相关指标的影响。结果:篮球运动员和普通大学生损伤概率女、男之比分别为18.36和13.04。模拟得到的损伤与非损伤试跳相比,男性篮球运动员和普通男大学生腓肠肌肌力(P=0.553,P=0.773)、女性篮球运动员膝关节旋内力矩(P=0.981)和普通男大学生垂直地面反作用力(P=0.810)均无显著性差异。其余篮球运动员和普通大学生的各项指标在损伤与非损伤试跳间均具有显著性差异(P<0.05)。另外,除压力中心到踝关节水平距离(P=0.114)、矢状面(P=0.061)和非矢状面负荷(P=0.58)在性别和运动水平间无交互作用外,其余指标均表现为显著性交互作用(P<0.01)。结论:运动水平和性别都会影响ACL损伤危险因素,且性别对危险因素的影响受运动水平的影响。整体而言,女性比男性,专业篮球运动员比无训练经验的同龄大学生产生ACL损伤的危险性更大。

股骨足印中心定位法单束解剖重建ACL临床效果研究

目的探讨急性前交叉韧带(anterior cruciate ligament,ACL)断裂后镜下单束解剖重建术中股骨骨道实用定位方法及临床效果。方法对ACL断裂患者行关节镜下自体半腱股薄肌腱单束解剖重建术,术中股骨侧骨道采用足印中心定位法,同时术中寻找股骨外侧髁间嵴、分叉嵴等骨性标志对定位点准确性进行校对。术前、术后进行膝关节功能检查及评分,包括前抽屉试验、Lachman试验、pivot shift试验、Lysholm评分、Tegner评分、IKDC评分。结果 (1)镜下100%可见股骨外髁间嵴,但分叉嵴的出现率仅有42%(48/115)。(2)术后前抽屉试验阴性率79%(术后3个月)、77%(术后24月);Lachman试验阴性率80%(术后3个月)、71%(术后24月)、pivot shift试验阴性率97%(术后3个月)、95%(术后24月)。(3)Lysholm评分、Tegner评分及IKDC评分与术前比较差异有统计学意义(P<0.01)。结论 ACL单束解剖重建股骨足印区中心点法能提供足够膝关节稳定性,取得满意临床效果,但对股骨止点残留韧带依赖性高;股骨外侧髁间嵴镜下易于辨认,但分叉嵴辨别率低。

3.0T MRI评估青年人群膝关节前交叉韧带(ACL)损伤的危险相关因素

目的探讨3.0T MRI评估青年人群前交叉韧带(anterior cruciate ligament,ACL)损伤的危险相关因素。方法回顾性分析已确诊ACL损伤的患者69例(其中男35例,女34例)及正常对照组62例(其中男33例,女29例)膝关节3.0T MRI扫描资料,比较MRI诊断ACL损伤的敏感性,特异性及准确性。测量不同性别人群及损伤组与正常组的膝关节形态,测量参数包括:股骨髁间凹的宽度(notch width,NW)、股骨内外侧髁的总长(bicondylar width,BW)以及两者的比例即髁间窝宽度指数(NW index,NWI),内侧髁至髁间凹的宽度(medial condyle size,M)、外侧髁至髁间凹的宽度(lateral condyle size,L)及两者的比值(L∶M),并测量不同性别及损伤组与未损伤组胫骨内侧平台坡度(medial tibial plateau slope,MTS)及外侧胫骨平台坡度(lateral tibial plateau slope,LTS)。结果 MRI诊断ACL损伤的敏感性为94.2%,特异性为92.3%,准确性为93.5%。68例男性与63例女性比较,BW、L及NWI的差异有统计学意义(P<0.05),NW、M及L∶M的差异无统计学意义(P>0.05),青年男性与女性膝关节形态不同,男性膝关节的NWI较女性更小,在男性ACL损伤组与正常组相比,BW、L∶M及NWI的差异有统计学意义(P<0.05),ACL损伤组的NWI更小;而女性中ACL损伤组与正常组相比,各参数的差异均无统计学意义。所有参数在活动的强度及损伤部位(左右)之间的差异均无统计学意义(P>0.05)。ACL损伤组与正常组相比,身高、体重、MTS及LTS的差异均无统计学意义(P>0.05)。结论较小的NWI很可能是青年男性ACL损伤的危险相关因素,BW及L∶M是影响青年男性膝关节动力学的重要因素。MTS和LTS可能无法作为膝关节ACL损伤的直接危险相关因素。

体外冲击波对兔ACL重建腱骨愈合影响的组织学观察

目的组织学观察体外冲击波(Extracorporeal Shock Waves,ESW)治疗对前交叉韧带(ACL)重建后腱骨愈合的影响。方法健康新西兰大白兔18只(2-3月龄雌雄不限),随机分为2组,采用趾长伸肌腱建立ACL重建动物模型,ESW治疗组ACL重建术后24h给予冲击波治疗,对照组不给予冲击波处理,术后2、4、8周处死动物取标本行HE染色观察组织学改变,血管墨汁灌注观察愈合组织新生血管含量。结果 ESW组术后4周腱骨界面成纤维细胞和成软骨细胞增生活跃,胶原纤维合成明显增多、排列规则。术后8周腱骨界面由致密结缔组织连接,胶原纤维大量合成、呈垂直纵向规则排列,部分区域出现胶原纤维-纤维软骨组织-骨组织的移行带改变,形成类似韧带直接止点样结构。腱骨界面组织愈合较对照组迅速。术后4周和8周腱骨界面新生血管的含量ESW组明显高于对照组(P=0.028,P=0.008)。结论 ESW作用可诱导腱骨界面血管新生,改善腱骨界面血供,促进腱骨界面组织愈合。

两种不同治疗方式治疗ACL断裂的疗效对比

目的:比较两种不同治疗方式治疗前交叉韧带(ACL)断裂的疗效。方法:收集本院2014年9月至2018年8月63例ACL断裂患者的临床资料,根据患者治疗方法的不同,分为无减张组(41例)采取常规解剖重建和术后康复,未采取减张技术治疗;减张组(22例)采用减张技术解剖重建及术后快速康复治疗。两组患者均术后随访,并比较两组手术前后患膝屈曲度、Lysholm膝关节评分及美国特种外科医院(HSS)评分情况,记录随访期间患者并发症的发生情况。结果:63例患者术后均获随访,平均随访时间(14.05±2.25)个月。无减张组术后韧带松弛2例,关节僵硬1例;减张组术后未见并发症的发生,韧带生长状况良好。与术前相比,两组患者术后1、3个月患膝屈曲度明显升高,且减张组术后患膝屈曲度较未减张组明显升高(P<0.05)。术后3、6、12个月,两组患者Lysholm膝关节评分较术前均明显增加,且减张组术后评分较无减张组评分明显增加(P<0.05)。相比术前,两组患者术后3、6、12个月HSS评分均明显增加,且减张组术后评分较无减张组评分明显增加(P<0.05)。结论:采用减张技术解剖重建及术后快速康复治疗可有效改善ACL断裂患者术后患膝功能,促进膝关节功能恢复,且可减少并发症的发生,具有良好的安全性,有助于促进患者运动功能的恢复,其临床疗效明显优于未应用减张技术者。

两种康复方案下关节镜下前交叉韧带(ACL)重建术后本体感觉的恢复程度观察

目的探索分析两种康复方案下关节镜下前交叉韧带(ACL)重建术后本体感觉的恢复程度,明确其应用价值。方法选择我院收治的前交叉韧带(ACL)损伤重建术后患者作为研究对象并进行分组研究,对照组均进行普通康复训练,研究组均进行本体感觉康复训练。将两组患者的康复训练效果进行对比。结果两组患者术前本体感觉恢复程度相比不具有显著性差异(P>0.05);研究组术后6个月以及1年的屈膝至15°、45°、75°本体感觉恢复程度均显著优于对照组(P<0.05);两组患者术前、术后6个月以及术后1年的Lysholm膝关节功能评分不具有显著性差异(P>0.05)。结论针对前交叉韧带(ACL)损伤重建术后患者进行本体感觉康复训练,有利于促进患者本体感觉康复,具有极大的推广应用价值。

一种无图像导航下ACL重建的等距规划方法

针对膝关节前交叉韧带(ACL)移植位置不易确定的问题,采用光电跟踪技术,提出了一种基于等长规划的ACL无图像导航重建方法。首先根据韧带等距理论,设计了一种基于计算胫骨绕股骨运动过程中距离变化最小的点对的等距规划方法,然后分析了无图像导航系统的总体结构及关键技术,包括手术空间各对象的坐标转换、关节特征采集原则和表面重建方法,最后利用该方法进行了2例牛腿骨实验。结果表明,该规划方法合理有效,在股骨/胫骨的生长区域内的定位精度达1.45mm,能够满足临床手术要求。

Effects of higher femoral tunnels on clinical outcomes,MRI,and second-look findings in double-bundle anterior cruciate ligament reconstruction with a minimal 5-year follow-up

Background:To perform anatomical anterior cruciate ligament reconstruction(ACLR),tunnels should be placed relatively higher in the femoral anterior cruciate ligament(ACL)footprint based on the findings of direct and indirect femoral insertion.But the clinical results of higher femoral tunnels(HFT)in double-bundle ACLR(DB-ACLR)remain unclear.The purpose was to investigate the clinical results of HFT and lower femoral tunnels(LFT)in DB-ACLR.Methods:From September 2014 to February 2016,83 patients who underwent DB-ACLR and met the inclusion and exclusion criteria were divided into HFT-ACLR(group 1,n=37)and LFT-ACLR(group 2,n=46)according to the position of femoral tunnels.Preoperatively and at the final follow-up,clinical scores were evaluated with International Knee Documentation Committee(IKDC),Tegner activity,and Lysholm score.The stability of the knee was evaluated with KT-2000,Lachman test,and pivot-shift test.Cartilage degeneration grades of the International Cartilage Repair Society(ICRS)were evaluated on magnetic resonance imaging(MRI).Graft tension,continuity,and synovialization were evaluated by second-look arthroscopy.Return-to-sports was assessed at the final follow-up.Results:Significantly better improvement were found for KT-2000,Lachman test,and pivot-shift test postoperatively in group 1(P>0.05).Posterolateral bundles(PL)showed significantly better results in second-look arthroscopy regarding graft tension,continuity,and synovialization(P<0.05),but not in anteromedial bundles in group 1.At the final follow-up,cartilage worsening was observed in groups 1 and 2,but it did not reach a stastistically significant difference(P>0.05).No statistically significant differences were found in IKDC subjective score,Tegner activity,and Lysholm score between the two groups.Higher return-to-sports rate was found in group 1 with 86.8%(32/37)vs.65.2%(30/46)in group 2(P=0.027).Conclusion:The HFT-ACLR group showed better stability results,better PL,and higher return-to-sports rate compared to the LFT-ACLR group.

前交叉韧带断裂及重建术后步态生物力学特征研究现状

对前交叉韧带(ACL)断裂及重建术后躯干、髋、膝和踝关节在不同运动平面的步态生物力学特征及康复治疗措施的研究现状进行综述,得到如下结论。ACL断裂及重建术后各关节步态的生物力学出现异常,其中膝关节步态生物力学异常在3个运动平面均有体现,踝关节的异常集中在矢状面,髋关节及躯干的异常多见于冠状面。根据各关节生物力学特征及ACL断裂和术后时期的不同,需制定针对性且长期的康复治疗方案;目前常规的康复训练不能完全恢复ACL断裂重建患者的正常步态,还需加入神经肌肉控制训练和躯干-髋-膝-踝的整体康复训练。

前交叉韧带重建术后移植物失效的影响因素分析

目的探讨前交叉韧带(anterior cruciate ligament,ACL)重建术后移植物失效的影响因素。方法选取2017年1月至2020年12月首都医科大学附属北京同仁医院行关节镜下ACL单束解剖重建术患者122例,按照ACL术后移植物是否失效分为失效组和未失效组。收集患者基线资料和临床资料,包括胫骨、股骨骨道位置,股骨髁间角,髁间窝宽度指数,内侧胫骨平台后倾角(medial tibial plateau slope,MTPS)和外侧胫骨平台后倾角(lateral tibial plateau slope,LTPS),采用多因素logistic回归方程分析ACL重建术后移植物失效的影响因素。结果122例患者中,男96例、女26例,年龄18~49岁,平均(31.3±4.9)岁。多因素logistic回归分析结果显示,股骨骨道位置越高(OR=2.817,95%CI:1.109~7.154,P=0.029)、MTPS越大(OR=1.239,95%CI:1.071~1.804,P=0.021)、LTPS越大(OR=1.487,95%CI:1.238~1.995,P=0.048)的患者,越容易发生移植物术后失效。结论股骨骨道位置、MTPS和LTPS是ACL重建术后移植物失效的影响因素。建议ACL重建术前测量患者的MTPS和LTPS,并精确定位术中股骨骨道位置,必要时可同时进行手术,矫正过大的MTPS和LTPS。