Hamstring graft tibial insertion preservation versus detachment in anterior cruciate ligament reconstruction: a prospective randomized comparative study

Background

Anterior cruciate ligament (ACL) reconstruction with hamstring graft (HG) is a commonly performed procedure. Despite the type of reconstruction chosen, the detached HG undergoes a remodeling process known as ligamentization. In order to shorten the ligamentization process, the maintenance of HG tibial insertion, aimed to spare the tendons vascular supply, has been postulated. The aim of this paper is to report the results of a prospective randomized study comparing clinical and MRI results between two different ACL reconstructive procedures with and without HG tibial insertion preservation.

Methods

Forty patients (mean age 27.5 ± 9.5 years) were enrolled and randomly divided into two groups. The study group underwent an ACL reconstruction using a distally inserted HG, while the control group underwent a technique encompassing HG tibial detachment. Subjective and objective IKDC score was administered preoperatively and at 3-, 6-, 12- and 24-month follow-up. Graft morphology was assessed through MRI evaluation performed at 6-month follow-up.

Results

Clinical results were excellent in both groups. Regarding MRI results, a better intra-articular graft morphology was observed in the study group (Tau = 0.313, p = 0.024). No differences in graft integration were noticed.

Conclusion

The main finding of this preliminary study is that preservation of the hamstring tibial insertion seems to enhance graft ligamentization with improved morphology of the intra-articular portion of the graft compared to a detachment of the hamstring tendons from the tibial side. Further well-designed studies with higher number of patients as well as more serial MRI evaluations are required to validate these preliminary findings.

     

正向、反向束间构型在前十字韧带双束重建中的临床效果比较

 目的比较关节镜下前十字韧带(anterior cruciate ligament. ACL)双束重建中正向、反向束间构型的初期临床效果。方法 2008年 4月至 2009年 8月.采用 8股自体腘绳肌肌腱双束重建 ACL治疗单纯 ACL损伤患者 97例.根据患者入: 时住: 号的奇偶数随机分成正向组(采用正向束间构型. 47例)和反向组(采用反向束间构型.50例).移植物均采用微型钢板纽扣进行悬吊式固定。术后患者随访期均超过 1年.根据 IKDC、Lysholm和 Tegner评分标准进行膝关节功能评估。结果术后随访 12~17个月.平均(13.71±1.32)个月。末次随访时.正向组 2例(4.2%)患者伸膝活动受限 10°.5例(10.6%)膝关节轻度屈曲受限(均<15°);反向组所有患者伸膝活动正常.4例(8.0%)屈曲受限约 5°。根据 Lachman试验.正向组 1例(2.1%)I度阳性和 1例(2.1%) II 度阳性.反向组 1例(2.0%) II 度阳性。 KT-1000(屈膝 30°.30N)双膝松弛度差异值正向组为(1.04±1.11) mm.反向组为(0.86±1.12) mm。按照 IKDC客观评级标准.正向组 46例(97.9%)正常或接近正常.反向组 48例(96.0%)正常或接近正常。根据 IKDC、 Lysholm和 Tegner评分标准.两组的差异均无统计学意义。结论采用 8股自体腘绳肌肌腱正向、反向束间构型双束重建 ACL均能有效地恢复膝关节稳定性.两组短期临床效果的差异无统计学意义。但反向束间构型能有效地防止移植物和髁间凹的撞击。     

Patient satisfaction with inpatient versus outpatient reconstruction of the anterior cruciate ligament: a randomized clinical trial.

OBJECTIVE: To compare satisfaction levels after reconstruction of the anterior cruciate ligament (ACL) between inpatients and outpatients by means of a valid and comprehensive outcome tool. METHODS: Fifty patients examined at a tertiary clinic who met the study's inclusion criteria (15-50 yr old, no previous ACL reconstruction, > 6 h after injury, living < 1 h from hospital, assigned a caregiver for outpatient management within 48 h of injury, no serious health condition, no known hypersensitivity to ASA/NSAIDs, bleeding disorder or gastric ulcer, ability to cope at home after operation) were recruited and randomized into either the inpatient or outpatient groups. Inpatients stayed overnight in hospital after their ACL reconstruction and were discharged home the next day. Outpatients were discharged home on the day of the procedure. All patients attended a preoperative educational session and were required to meet the same discharge criteria (able to bear weight using crutches and to void, to be reasonably pain free, no nausea or vomiting, no excess bleeding or drainage, be alert, be given take-home medications and be in the company of a caregiver). Standardized anesthetic and postoperative analgesic protocols were used. One week after ACL reconstruction, patient satisfaction was quantified with a previously validated visual analogue questionnaire (maximum score of 100). RESULTS: We collected data on 21 inpatients and 19 outpatients. The mean overall-satisfaction score of the outpatient group was higher than that of the inpatient group (85.1 v. 78.2, p = 0.015). Between-group differences in postoperative pain, nausea, rate of readmission and complications were not significant. CONCLUSION: As determined by a comprehensive, population-specific, validated outcome, patient satisfaction is higher when ACL reconstruction is done on an outpatient basis.     

The efficacy of continuous bupivacaine infiltration following anterior cruciate ligament reconstruction

Purpose: The purpose of this study was to determine whether continuous infiltration of a local anesthetic into the surgical wound for 48 hours will diminish the need for narcotics and improve the postoperative pain experience for patients undergoing anterior cruciate ligament (ACL) reconstruction using a patellar tendon autograft. Type of Study: Prospective, randomized, double-blind study with a placebo and an experimental group. Methods: Twenty-six patients were randomly assigned to receive either normal saline (placebo) or bupivacaine (experimental) for 48 hours. Both groups received a single intra-articular bolus injection of 35 mL of 0.25% bupivacaine and 5 mg. of morphine at the conclusion of surgery. The placebo group received an infusion of 2 mL/h of normal saline and the experimental group received an infusion of 2 mL/h of 0.25% bupivacaine, both for 48 hours. The anesthetic was infused using a disposable elastomeric pump (Baxter Healthcare, Deerfield, IL). Patients were evaluated using a pain and pain relief assessment questionnaire and visual analogue scale (VAS). Narcotic consumption was also documented. The pump was discontinued either by the patient at home or by a physical therapist. Results: There was a statistically significant (P <.05) difference in VAS pain and pain relief scores reported by patients receiving the infusion of 0.25% bupivacaine. Patients in the treatment group also consumed 37% less narcotics than the placebo group. The operating room time, tourniquet time, weight, and age of this population were similar in the 2 groups. There were no complications with the catheter technique. Conclusion: This report of a new technique suggests that surgical knee patients receiving local anesthetic infusion postoperatively experience less pain and require less narcotics. The disposable pump allowed administration of the medication on an outpatient basis.Arthroscopy: The Journal of Arthroscopic and Related Surgery, Vol 18, No 8 (October), 2002: pp 854–858     

自体与同种异体组织重建膝关节前交叉韧带的临床对比研究

目的　观察自体与同种异体移植物关节镜下重建膝关节前交叉韧带 (ACL)的疗效与差异。方法　将 5 3例ACLⅢ度损伤患者随机分为自体组织移植组 (A组 ,n =2 5 )和同种异体组织移植组 (B组 ,n =2 8)。A组包括骨 髌腱 骨 15例 ,4股半腱肌腱或半腱加股薄肌腱重建 10例 ;B组包括骨 髌腱 骨 18例 ,6股半腱加股薄肌腱 4例 ,2股胫后肌腱 4例 ,跟腱骨重建 2例。两组患者术前、术后均行理学检查、Lysholm Tegner和IKDC膝关节综合功能评定及关节活动度测量仪 (KT 2 0 0 0 )检测。随访 12～ 31个月 ,平均 19个月。结果　手术前后两组各项指标有显著差异 (P <0 0 5 ) ;但两组间术后除B组手术耗时短和术后发热时间较长外 ,其它各项指标均无明显统计学差异 (P >0 0 5 )。两组术后健、患侧对比 ,胫骨前移小于 3mm分别达 88%和 86 % ;而 >5mm分别占 4 %和 7 1% ;感染率为 0 %和 3 5 %。结论同种异体与自体移植物重建ACL疗效相近 ,对多发韧带损伤、韧带重建翻修及中老年或运动量较少的患者 ,同种异体移植组织仍是重建ACL良好的替代物     

LARS韧带与异体胫前肌腱保残重建损伤后交叉韧带的术后疗效对比研究

[目的]研究LARS人工韧带与异体胫前肌腱保残重建后交叉韧带(PCL)损伤术后的疗效差异,指导临床治疗。[方法]38例PCL损伤并进行重建的患者,根据术中采用移植物种类分成两组:LARS人工韧带组(19例)和异体胫前肌腱组(19例)。所有患者随访2年。评价指标包括:IKDC评分、Lysholm评分、Tegner评分和膝关节稳定度测量。[结果]与术前相比,两组患者术后的关节稳定性和功能指标均有显著改善(P0.05)。同时,LARS人工韧带组患者术后的关节稳定性显著强于异体胫前肌腱组(P0.05),而两组患者术后Lysholm评分、Tegner评分和IKDC评分结果差异无统计学意义(P0.05)。[结论]采用LARS人工韧带比采用异体胫前肌腱重建损伤的PCL更有利于患膝稳定性的恢复。     

Goretex prosthetic ligament vs. Kennedy ligament augmentation device in anterior cruciate ligament reconstruction: A prospective randomized 3-year follow-up of 41 cases

In a prospective randomized study on patients with functional instability due to old anterior cruciate ligament tears, 18 were randomized to a Goretex reconstruction and 23 to augmentation with the Kennedy Ligament Augmentation Device (LAD). All operations were performed with use of a modified over-the-top technique. At follow-up (median 36 months), improvements in Lysholm scores, activity scores, and arthrometry values were recorded in both groups as compared with preoperative levels. The LAD group had better Lysholm scores than the Goretex group. Among Goretex-reconstructed knees, effusion and pain occurred, and major effusions in two knees caused by the Goretex artificial ligament were indications for graft explant after 4 years. Our short-term results with the Goretex prosthetic ligament are not acceptable because of effusions and of pain. Our short-term results of the LAD polypropylene braid as an augmentation to an autologous graft seem promising.     

Patellar tendon versus quadrupled bone-semitendinosus anterior cruciate ligament reconstruction: a prospective clinical investigation in athletes

Purpose:Patellar tendon and hamstrings are both used in anterior cruciate ligament (ACL) reconstruction, and comparisons have been reported with different results. The purpose of this clinical study was to compare the results of ACL reconstruction in athletes with 2 different graft types, both using bone-to-bone healing: bone-patellar tendon-bone graft and a quadrupled bone-semitendinosus graft.Type of Study:Outcomes study.Methods:From 1994 to 1997, 2 groups of 40 athletes who underwent ACL replacement with patellar tendon and quadrupled bone-semitendinosus grafts were prospectively evaluated. Preinjury activity level, age, and gender were comparable in both groups. All patients were operated on by the same surgeon within 5 months from injury and underwent group-specific rehabilitation programs. An independent examiner performed the final evaluations at 36 months. Review included clinical examination, radiographs, computed analysis, isokinetic and functional strength tests, and subjective and objective evaluation with standard knee scores. Additional procedures were recorded. Statistical analysis was performed with both parametric and nonparametric tests.Results:Average surgical time was longer with the semitendinosus graft, and postoperative pain was higher in the patellar tendon group. Standard knee evaluation scores and subjective assessment revealed no significant differences. Isokinetic testing of flexion-extension and internal-external rotation showed lower quadriceps strength and a mild deficit of external rotation in the patellar tendon group and slightly lower flexor strength in the semitendinosus group at 12 months. Computerized laxity analysis showed no difference between the 2 groups with 90% of patients having less than 3 mm side-to-side difference, with a gender difference in the semitendinosus group. Kneeling pain was higher in patellar tendon group.Conclusions:The bone-patellar tendon-bone and quadrupled bone-semitendinosus autograft provide excellent grafts for ACL reconstruction. Both techniques are comparable regarding final stability, but in patients with extensor mechanism problems or those who engage in sports with a high incidence of patellar tendonitis, the semitendinosus graft should be considered.     

Decreased range of motion following acute versus chronic anterior cruciate ligament reconstruction

Eighty patients with acute anterior cruciate ligament (ACL) reconstruction were compared to 80 patients with chronic ACL reconstruction. Before reconstruction, all patients had 0 degrees-120 degrees active motion, performed a straight leg raise without loss of extension, and demonstrated good quadriceps control. At 3 months, 4 acute patients had decreased range of motion (<10 degrees-120 degrees), but none at 6 or 12 months, and did not require repeat surgery. One chronic patient had decreased range of motion at 3 and 6 months and 1 patient had decreased range of motion at 1 year; both patients required operative intervention. Using these specific preoperative criteria, no increased incidence of decreased range of motion was found when an ACL reconstruction was performed within 3 weeks of injury.     

异体肌腱保留残端重建前交叉韧带的前瞻性随机对照研究

目的 比较使用异体肌腱保留残端重建前交叉韧带(ACL)和标准ACL重建术的临床疗效. 方法 前瞻性地将2008年8月至2010年4月收治的符合纳入和排除标准的ACL损伤患者随机分为2组,分别使用保留残端的ACL重建术(保残组,45例)和切除残端的ACL重建术(对照组,45例),移植物均使用4股异体肌腱.两组患者术前一般资料比较差异均无统计学意义(P＞0.05),具有可比性.比较两组患者术后Lysholm评分、IKDC分级、稳定性检查(Lachman试验、轴移试验和KT-1000 测量)、滑膜覆盖情况及本体感觉测试结果.结果 保残组和对照组分别有39例和41例患者完成至少2年(平均25.7个月)的随访.保残组和对照组患者Lysholm评分分别为(96.0±6.0)分和(93.0±7.5)分,分别有97.4％ (38/39)和97.6％ (40/41)的患者评为IKDCA级或B级、97.4％ (38/39)和97.6％(40/41)的患者Lachman试验阴性、94.9％ (37/39)和87.8％ (36/41)的患者轴移试验阴性、KT-1000侧-侧差值分别为(1.6±1.7) mm和(1.8±1.8) mm、滑膜覆盖分型为A或B的分别有71.4％ (20/28)和70.4％ (19/27)、关节位置觉侧-侧差值分别为3.6°±1.8°和3.9°±2.2°,以上指标两组比较差异均无统计学意义(P＞0.05).保残组受伤至手术时间与Lysholm评分、KT-1000侧-侧差值、移植物滑膜覆盖情况和关节位置觉侧-侧差值无明显相关性(P＞0.05).结论 使用异体肌腱时,保留残端重建ACL与标准的ACL重建术相比,对膝关节术后稳定性、移植物滑膜覆盖及膝关节本体感觉恢复等无明显促进作用.     

Allograft versus autograft for anterior cruciate ligament reconstruction: an up-to-date meta-analysis of prospective studies

Purpose

Although a large number of anterior cruciate ligament (ACL) reconstructions are performed annually, there remains a considerable amount of controversy over whether an autograft or an allograft should be used. The aim of this meta-analysis was to compare the clinical outcomes of allograft and autograft in primary ACL reconstruction.

Methods

The authors systematically searched electronic databases to identify prospective studies which compared allografts with autografts for primary ACL reconstruction. The results of the eligible studies were analysed in terms of instrumented laxity measurements, Lachman test, Pivot Shift test, objective International Knee Documentation Committee (IKDC) Scores, Lysholm Scores, Tegner Scores, and clinical failures. Study quality was assessed and relevant data were extracted independently by two reviewers. A random effect model was used to pool the data. Statistical heterogeneity between trials was evaluated by the chi-square and I-square tests.

Results

Nine studies, with 410 patients in the autograft and 408 patients in the allograft group, met the inclusion criteria. Five studies compared bone-patellar tendon-bone (BPTB) grafts, and four compared soft-tissue grafts. Four studies were randomized controlled trials, and five were prospective cohort studies. The results of the meta-analysis showed that there were no significant differences between allograft and autograft on all the outcomes in terms of instrumented laxity measurements (P = 0.59), Lachman test (P = 0.41), Pivot Shift test (P = 0.88), objective IKDC Scores (P = 0.87), Lysholm Scores (P = 0.79), Tegner Scores (P = 0.06), and clinical failures (P = 0.68). These findings were still robust during the sensitivity analysis. However, a subgroup analysis of Tegner scores by involving only BPTB grafts showed a statistical difference in favour of autografts (P = 0.005).

Conclusions

There was insufficient evidence to identify which of the two types of grafts was significantly better for ACL reconstruction, though the subgroup analysis indicated that reconstruction with BPTB autograft might allow patients to return to higher levels of activity in comparison with BPTB allograft. More high-quality randomized controlled trials with specified age and activity level are highly required before drawing a reliable conclusion.     

Double-bundle versus single-bundle anterior cruciate ligament reconstructions: a prospective,randomized study with 2-year follow-up

This prospective, randomized study was conducted to compare the short-term results of arthroscopic double-bundle with single-bundle anterior cruciate ligament (ACL) reconstruction. One hundred and eight patients with a symptomatic ACL rupture were randomized to either double-bundle (Group DB) or single-bundle (Group SB) ACL reconstruction. Follow-up was conducted at 6, 12, 18 and 24 months postoperatively. At the 24-month follow-up, 94 of the 108 patients (87 %) were available for evaluation. The rotational stability, as evaluated by pivot shift test, was significantly superior in the Group DB to that in the Group SB. No significant difference with regard to ACL revisions, total flexion work, mean peak flexion torque and extension work between the groups was detected. There was no significant difference between the groups in terms of the Tegner activity score, the knee injury and osteoarthritis outcome score, the Lysholm functional score, anterior knee pain or mobility, subjective knee function. In addition, no significant difference in laxity on the Lachman test or the KT-1000 maximum manual force test was investigated. All the results were significantly more satisfactory at each follow-up period than preoperatively, in both groups. Both SB- and DB-ACL reconstruction resulted in satisfactory subjective outcome and objective stability. Both these techniques can therefore be considered as suitable alternatives for ACL reconstruction. Moreover, as it seems to be according to the pivot shift test, the risk for the development of degenerative changes of the knee joint in a long run could be smaller in the Group DB.     

Comparison of 2 femoral tunnel drilling techniques in anterior cruciate ligament reconstruction. A prospective randomized comparative study.

Background

To evaluate the length and position of femoral tunnel,and exam whether knee stability and clinical functional outcomes are superior in AMP method.

Methods

From August 2014 to February 2015, we prospectively recruited 104 patients undergoing anterior cruciate ligament reconstruction. They were randomized to anteromedial portal or transtibial method. All patients underwent Lysholm score, International Knee Documentation Committee score,Tegner score at pre-operative and last follow-up point as subjective assessment of clinical function. The Lachman test, the Pivot-shift test and KT-1000 were performed at the last follow-up as a evaluation of knee joint stability. We measured the length of femoral tunnel intraoperatively and at 1?week post-operatively, CT-based three-dimensional reconstruction was used to assess femoral tunnel location.

Results

The average follow-up time of anteromedial portal group was 25.7?±?6.8?months (range:12–36.5?months), and the average follow-up time of the transtibial group was 24.9?±?6.0?months (range:12–37?months). There was no significant difference between the groups pre-operative Lysholm score, IKDC score and Tegner scores. Both groups showed significantly improvement in these clinical function scores at follow up for their ACL reconstruction. However, there was no significant difference in the function scores between the two groups at last follow up. However, the mean femoral tunnel length in the anteromedial portal group was significantly shorter than that in the transtibial group. And tunnel location was significantly lower and deeper with the anteromedial portal technique than with the transtibial technique.

Conclusion

The use of anteromedial portal method resulted in a significantly lower and deeper placement of the femoral tunnel, and a shorter tunnel length compared to the transtibial method. However, there was no statistical difference in terms of clinical function and knee joint stability between the anteromedial portal method and the transtibial method.

Trial registration

Name of the registry: Chinese Clinical Trial Registry.The registration number: ChiCTR1800014874.The date of registration: 12 February, 2018.The study is retrospectively registered.

     

Reduction of verbal pain scores after anterior cruciate ligament reconstruction with 2-day continuous femoral nerve block: a randomized clinical trial

BACKGROUND: Single-injection femoral nerve block analgesia and spinal anesthesia have been associated with fewer postoperative nursing interventions and successful same-day discharge after anterior cruciate ligament reconstruction. In the current study, the authors prospectively determined the effect of continuous femoral nerve block on a numeric rating scale (NRS) of pain intensity with movement for 7 postoperative days. METHODS: Patients undergoing this surgery with no history of previous invasive surgery on the same knee were recruited for this study. After standardized spinal anesthesia, intravenous sedation, and perioperative multimodal analgesia, patients received a femoral nerve catheter with (1) saline bolus (30 ml) plus saline infusion (270 ml at 5 ml/h, placebo group); (2) levobupivacaine (0.25%) bolus with saline infusion (group I), or (3) levobupivacaine (0.25%) bolus and infusion (group II). Patients were surveyed preoperatively and on postoperative days 1-4 and 7 to determine NRS scores (scale 0-10). RESULTS: Data from 233 participants were analyzed. On days 1-2, 50% of placebo patients had NRS scores of 5 or above, whereas among group II patients, only 25% had scores of 5 or above (P < 0.001). In regression models for NRS scores during days 1-4, group II was the only factor predicting lower pain scores (odds ratios, 0.3-0.5; P = 0.001-0.03). Overall, patients with preoperative NRS scores greater than 2 were likely to report higher NRS scores during days 1-7 (odds ratios, 3.3-5.2; P < 0.001). CONCLUSIONS: Femoral nerve block catheters reliably keep NRS scores below the moderate-to-severe pain threshold for the first 4 days after anterior cruciate ligament reconstruction.     

Goretex prosthetic ligament vs. Kennedy ligament augmentation device in anterior cruciate ligament reconstruction. A prospective randomized 3-year follow-up of 41 cases

In a prospective randomized study on patients with functional instability due to old anterior cruciate ligament tears, 18 were randomized to a Goretex reconstruction and 23 to augmentation with the Kennedy Ligament Augmentation Device (LAD). All operations were performed with use of a modified over-the-top technique. At follow-up (median 36 months), improvements in Lysholm scores, activity scores, and arthrometry values were recorded in both groups as compared with preoperative levels. The LAD group had better Lysholm scores than the Goretex group. Among Goretex-reconstructed knees, effusion and pain occurred, and major effusions in two knees caused by the Goretex artificial ligament were indications for graft explant after 4 years. Our short-term results with the Goretex prosthetic ligament are not acceptable because of effusions and of pain. Our short-term results of the LAD polypropylene braid as an augmentation to an autologous graft seem promising.     

The effect of different graft tensioning in anterior cruciate ligament reconstruction: A prospective randomized study

A prospective study was performed to establish the influence on stability of tensioning the graft after anterior cruciate ligament reconstruction with a bone-patellar tendon-bone graft. There were 38 consecutive patients randomly divided into two groups; in the first group (19 patients) the graft was tensioned at 20 N, and in the second group the tension was 40 N. Evaluation included Lysholm scores, instrumented Lachman tests, IKDC level, and lateral radiographs to measure the tibia position versus the femur. One year after surgery we did not find any significant difference between the two groups. We conclude that the importance of graft tensioning has yet to be established in the clinical situation. Based on our results, graft tension of 20 N seems to be sufficient, without the risk of overconstraining the knee joint. (Arthroscopy 1998 Nov-Dec;14(8):845-50.)     

关节镜下保留残端重建前交叉韧带的临床前瞻性对照研究

目的 前瞻性评估保留残端对于前交叉韧带重建临床疗效的意义.方法 2008年8月至2009年9月共70例有韧带残端存留的前交叉韧带损伤患者入选本研究组,随机分为保留残端组(n=35)和对照组(n=35).分别采取关节镜下保留残端重建前交叉韧带和切除残端的前交叉韧带重建手术技术,移植物均使用同种异体肌腱.术后随访分别进行膝关节功能评分(IKDC分级和Lysholm评分)、客观稳定性评估(Lachman试验、轴移试验和KT-1000测量)、本体感觉功能测量和二次关节镜手术探查.结果 70例患者中共61例(87%)获得随访,平均随访时间13.1个月.两组的功能评分无显著差异:Lysholm评分:保留残端组96.4分,对照组94.9分(P=0.71);IKDC分级中A和B级:保留残端组30例,对照组29例(P=0.586).两组的客观稳定性评估无显著差异:KT-1000测量的侧-侧差值:保留残端组1.69 mm,对照组1.65 mm(P=0.83);Lachman试验阴性例数:保留残端组29例,对照组28例(P=1.00);轴移试验阴性例数:保留残端组31例,对照组27例(P=0.225).本体感觉的角度重复试验结果无显著差异:保留残端组4.56°,对照组4.28°(P=0.522).二次手术探查时发现的移植物滑膜覆盖率无显著差异:保留残端组85%,对照组84.2%.结论 保留残端同时使用异体肌腱移植重建前交叉韧带,对术后膝关节主观功能评分、稳定性和本体感觉和移植物滑膜覆盖程度并无促进作用.

Abstract：

Objective To evaluate the clinical significance of arthroscopic anterior cruciate ligament (ACL)reconstruction using the remnant-preserved technique.Methods From August 2008 to September 2009,70 cases with the remnant of injured ACL were included in the trials,which were randomized into the remnant preservation(RP)group and the control group,35 cases in each group.All patients in the two groups underwent arthroscopic ACL reconstruction surgeries,with ACL-remnant preserving technique in RP group and ACL-remnant resection in control group,respectively.The injured ACL was reconstructed with allograft in all cases.Postoperative follow-up assessment included the International Knee Documentation Committee(IKDC)grading and Lysholm score,Lachman test,pivot shift test and KT-1000 measurement,proprioception measurements and the arthroscopic second look evaluation.Results Sixty-one(61/70,87%)cases were available for an average of 13.1 months follow-up assessment postoperatively.There were no significant differences between the RP and control group in functional outcome as evaluated with Lysholm score(96.4 vs.94.9,P = 0.71)and IKDC grading(cases with A and B gradings:30 vs.29,P = 0.586).Regarding objective stability,there were no differences between the 2 group in mean side-to-side difference of KT-1000(1.69 mm vs.1.65 mm,P =0.83),Lachman test(negative cases:29 vs.28,P = 1.00)and pivot shift test(negative cases:31 vs.27,P =0.225).There was also no difference between the groups in proprioception evaluation measured with angle repetitive test(4.56°vs.4.28°,P=0.522).During second look arthroscopic examination,the grafts synoveal coverage rates were found to be 85% in the RP group and 84.2% in the control group,without significant difference(P＞0.05).Conclusions Arthroscopic ACL reconstruction with the remnant preserving technique using tendon allograft do not improve the postoperative knee-joint function scores,stability,proprioception and synovial coverage of grafts.     

自体腘绳肌腱与LARS人工韧带重建前交叉韧带临床疗效的荟萃分析

[目的]基于国内现有临床证据比较自体腘绳肌腱与LARS人工韧带在关节镜下重建前交叉韧带的临床疗效。[方法]检索中国知网数据库,万方数据库,中国生物医学文献数据库和维普期刊网,检索时间截至到2016年8月。应用5.3版Rev Man软件和Stata12.0软件进行数据处理。主要评价指标为术后随访12个月以上Lysholm评分;次要评价指标包括主观IKDC评分,Tegner活动评分以及并发症。[结果]分析结果显示在术后随访12个月以上Lysholm评分和主观IKDC评分方面,LARS人工韧带组均要优于自体腘绳肌腱组;Tegner活动评分两组差异无统计学意义;两种治疗方法均未见明显并发症。[结论]本分析结果表明在前交叉韧带重建术后早中期,LARS人工韧带组在膝关节症状、功能和稳定性方面明显优于自体腘绳肌腱组。