腰椎退变性滑脱与终板Modic改变的相关性研究

目的 :观察腰椎退变性滑脱患者腰椎终板的Modic改变情况,分析退变性滑脱与终板Modic改变之间的关系。方法:回顾性分析108例腰椎退变性滑脱症患者的MRI资料,观察腰椎滑脱节段与非滑脱节段终板Modic改变各型的发生率及分布情况,分析终板Modic改变与腰椎滑脱的相关性。结果:108例腰椎退变性滑脱患者共540个椎体中,Ⅰ度滑脱149个,Ⅱ度滑脱17个;L1椎体滑脱10个,L2椎体26个,L3椎体41个,L4椎体46个,L5椎体43个。108例腰椎退变性滑脱患者共计1080个腰椎终板,351个终板存在Modic改变,其中ModicⅠ型172个(15.93%),Ⅱ型144个(13.33%),Ⅲ型3个(0.28%),混合型32个(2.96%);L1/2节段34个(3.15%),L2/3节段61个(5.65%),L3/4节段65个(6.02%),L4/5节段77个(7.13%),L5/S1节段114个(10.56%)。腰椎滑脱节段终板的Modic改变发生率为75.30%,非滑脱节段终板的Modic改变发生率为13.50%,差异有统计学意义(P0.05)。Spearman相关检验表明Modic改变和腰椎滑脱程度呈正相关(r=0.613,P0.05)。结论 :腰椎退变性滑脱患者滑脱节段终板的Modic改变多见,各型中以Ⅰ型多发,Modic改变的发生与滑脱程度呈正相关。     

年龄因素下中老年人脊柱-骨盆参数与腰椎旁肌退变的相关分析

目的 分析年龄因素下中老年人脊柱-骨盆参数与腰椎旁肌退变的相关性。方法 将194例中老年体检者按照年龄段不同分为A组(40～49岁，59例)、B组(50～59岁，77例)及C组(60～69岁，58例)。比较3组脊柱-骨盆参数及腰椎旁肌退变程度指标，分析3组脊柱-骨盆参数与L_3～4、L_4～5、L₅～S₁节段腰椎旁肌横截面积(CSA)/椎体CSA的相关性。结果 (1)骨盆倾斜角(PT)、骶骨倾斜角(SS)、腰椎前凸角(LL)、骨盆入射角(PI)、PI与LL的差值(PI-LL) 3组比较差异均无统计学意义(P>0.05)。(2)各腰椎节段腰椎旁肌CSA/椎体CSA:随A、B、C组均呈逐步下降趋势(P<0.05);3组组内不同腰椎节段腰椎旁肌CSA/椎体CSA:随L_3～4、L_4～5、L₅～S₁均呈逐步下降趋势(P<0.05)。(3) 3组PT、SS、LL、PI与各腰椎节段腰椎旁肌CSA/椎体CSA的相关...     

选择性神经根阻滞联合椎间孔入路经皮脊柱内镜手术治疗腰椎退行性疾病

目的 探讨选择性神经根阻滞联合椎间孔入路经皮脊柱内镜手术治疗腰椎退行性疾病的疗效及临床意义。方法 回顾性分析自2018-01—2019-05诊治的影像学检查结果显示病变节段与临床表现不一致的42例腰椎退行性疾病,先进行选择性神经根阻滞明确责任节段,然后精准实施椎间孔入路经皮脊柱内镜手术。结果 42例进行选择性神经根阻滞后明确了单一责任节段,责任节段：L_2、32例,L_3、42例,L_4、530例,L₅S₁ 8例。椎间孔入路经皮脊柱内镜手术中均未出现神经根及硬膜囊损伤,术后患者腰腿痛症状明显缓解。42例均获得随访,随访时间平均20.1(13～29)个月。末次随访采用改良MacNab标准评定临床疗效：优38例,良1例,可3例。术后第3天疼痛VAS评分较术前明显降低,差异有统计学意义(P<0.05)。术后3个月JOA评分与ODI指数较术前明显改善,术后6个月持续改善,差异有统计学意义(P<0.05)。结论 对于临床表现与影像学结果不相符的多节段腰椎退行性疾病患者,可以先进行选...     

斜外侧腰椎间融合术治疗单节段退变性腰椎滑脱症早中期疗效分析

目的 探讨斜外侧腰椎间融合术治疗单节段I度退变性腰椎滑脱症(L₃-L₅)的安全性及早中期疗效。方法 采用斜外侧腰椎间融合术治疗40例L₃-L₅单节段I度退变性腰椎滑脱症患者，观察手术时间、出血量、并发症，手术前、术后3个月及1年的VAS评分、ODI指数、椎间高度及JOA评分，以及术后1年的椎间融合率、治疗后JOA评分改善率。结果 40例患者术后3个月及1年随访时的腰腿痛VAS评分、ODI指数、JOA评分及椎间高度均较术前明显改善(P<0.05)。OLIF早期并发症发生率为20.0%,术后1年JOA评分改善率为(64.1±3.6)%,椎间未融合及椎体塌陷各3例。结论 斜外侧腰椎间融合术治疗L₃-L₅单节段I度退变性腰椎滑脱症，安全、效果确切，具有创伤小、恢复快、更好地保护脊柱后方结构的优点。     

邻近节段关节突关节退变对腰椎融合固定术后邻近节段疾病的影响

目的:探究邻近节段关节突关节退变对腰椎融合固定术后邻近节段疾病的影响。方法:对2016年6月至2019年6月接受L₅S₁腰椎后路椎间融合固定术(posterior lumbar interbody fusion,PLIF)的138例患者进行回顾性分析。根据术前L_4,5关节突关节是否有退变(采用Weishaupt分级标准)分为退变组68例,无退变组70例。收集两组患者年龄、性别、身体质量指数、随访时间、术前L_4,5椎间盘退变情况(采用Pfirrmann分级)等数据,采用疼痛视觉模拟评分(visual analogue scale,VAS)、Oswestry功能指数(Oswestry disability index,ODI)评估术后1、3个月的临床疗效,分析术后邻近节段疾病(adjacent segment disease,ASD)发生情况以及发生ASD时间。结果:两组患者在年龄、性别、身体质量指数、随访时间、术前L_4,5椎间盘退变情况方面比较,差异无统计学意义(P>0.0...     

退行性腰椎滑脱治疗方法的研究进展

<正>退行性腰椎滑脱(degenerative spondylolisthesis,DS)是由于退行性变导致病变节段腰椎椎体相对于下位椎体发生移位,多见向前移位,且不伴有椎弓根断裂或缺损,也称为“假性滑脱”。退行性腰椎滑脱是发生于脊柱的临床常见病、多发病,好发于50岁以上的中老年人群,女性患病率更高。调查发现65岁以上老年人腰椎滑脱男女患病率分别为19.1%和25.0%,约1∶1.3^[1]。DS好发于L4/L5节段,其次为L3/L4和L5/S1节段,多以Ⅰ度、Ⅱ度轻度滑脱为主^[2-4]。目前,DS发病机制尚未完全清楚,可能与支持结构的年龄相关性退变有关,如椎间盘、关节突关节、骨、韧带、小关节囊和椎旁肌肉等。     

腰痛患者L5椎体发育不良与腰椎退行性变的关系

目的 探讨L₅椎体发育不良(L₅ vertebral dysplasia, L₅VD)的发生率及其与腰痛患者退行性变的关系。方法 选择67例L₅VD患者作为研究组,按照1∶5比例从剩余患者中选择335例非L₅VD患者作为对照组。观察患者L₅椎体参数、L_4-5椎间盘退变、L₅-S₁椎间盘退变、L₅椎体上下终板Modic变化、L₅峡部裂和椎体滑脱的发生率。结果 L₅VD检出率为1.97%。研究组L₅椎体前后位直径、L₅椎体后缘高度低于对照组,L₅椎体楔角高于对照组,差异均有统计学意义(P<0.05)。研究组L_4-5、L₅-S₁椎间盘Pfirrmann分级的高级别占比均高于对照组(P<0.0...     

后外侧内镜下腰椎融合术治疗腰椎滑脱症

目的 回顾性分析后外侧入路内镜下腰椎融合术(posterolateral endoscopic lumbar interbody fusion, PELIF)治疗腰椎滑脱症的疗效和手术安全性。方法 回顾性分析本科自2019年1月～2020年3月开展PELIF手术治疗的31例腰椎滑脱症患者，滑脱节段：L_3-4 3例，L_4-5 21例，L₅-S₁ 7例；滑脱程度：Ⅰ度25例，Ⅱ度6例。统计患者围术期指标，以及手术疗效和影像学指标的改善情况。结果 31例术后获访15～27个月，平均(21.3±4.2)个月。手术时间137～210 min,平均(169.5±19.4)min;术后住院时间3～7 d,平均(3.9±1.2)d。术后有2例发生神经根刺激症状，对症处理6 d后好转。与术前相比，所有患者术后2周、6个月和末次随访时的腰痛VAS评分、下肢痛VAS评分以及ODI指数均显著降低(P<0.05)。与术前相比，所有患者术后2周、末次随访时的椎间隙高度和局部前凸角均显著增加(P<0.05),而腰椎滑...     

腰椎后路椎间植骨融合内固定术后邻近节段椎间盘退行性改变生物力学特点的有限元分析

目的采用有限元方法分析腰椎后路椎间植骨融合内固定术后邻近节段椎间盘退变的生物力学特点。方法采集1名正常成人L_3~5的CT扫描数据,经有限元软件建立正常腰椎L_3~5模型(正常模型)、L_4、5椎弓根钉内固定模型(PSF),以及L_4、5全椎板减压、椎间cage融合、椎弓根钉内固定模型(PSF+PLIF)。比较3个模型在模拟人体腰椎前屈、后伸、左侧弯、右侧弯、左轴向旋转、右轴向旋转时L_3、4椎间盘膨出与内陷最大值,以及各方向L_3、4纤维环应力峰值。结果 PSF+PLIF模型与PSF模型L_3、4椎间盘膨出、内陷最大值较正常模型明显增大,且PSF+PLIF模型较PSF模型大,差异有统计学意义(P <0.05)。PSF+PLIF模型与PSF模型左侧弯、右侧弯、左轴向旋转、右轴向旋转时L_3、4的纤维环应力峰值增幅明显大于Model模型,且PSF+PLIF模型增幅大于PSF模型,差异有统计学意义(P <0.05)。结论腰椎后路椎间植骨融合内固定术引起邻近节段椎间盘生物力学改变是加重邻近节段椎间盘退行性改变程度的重要因素。     

退变性腰椎滑脱患者多裂肌萎缩与滑脱程度相关性研究

目的分析退变性腰椎滑脱症患者滑脱节段多裂肌萎缩程度与腰椎滑脱程度的相关性。方法回顾分析2008年1月至2019年4月本院就诊的103例腰椎退变性滑脱症的患者资料,其中男22例,女81例;年龄(58.55±0.88)岁(范围:37~77岁)。L2滑脱2例,L3滑脱10例,L4滑脱81例,L5滑脱10例。所有患者均摄腰椎侧位X线片,行腰椎MR检查。收集影像学资料,采用Image-Pro Plus进行数据测量:①腰椎侧位X线片上测量腰椎滑脱比;②腰椎MR上分别测量退变性滑脱节段的总多裂肌横截面积(total multifidus muscle cross sectional area,TCSA)与无脂肪浸润多裂肌横截面积(fat-free multifidus muscle cross sectional area,FCSA),并计算FCSA/TCSA比值,用来评估多裂肌萎缩程度,该数值越大表明多裂肌萎缩越轻;采用同样的方法测量退变性滑脱节段的上一非滑脱节段的TCSA与FCSA,并计算FCSA/TCSA比值。结果对两位医生的测量结果进行一致性检验,腰椎滑脱比数据进行一致性检验,ICC=>0.75,说明数据一致性高,结果可信度高。退变滑脱节段上一非滑脱节段和退变滑脱节段的多裂肌萎缩程度(FCSA/TCSA比值)分别为0.66±0.09和0.74±0.08,差异有统计学意义(t=-12.618,P=0.000);103例中Ⅰ度滑脱66例(64.1%,66/103),Ⅱ度滑脱患者37例(35.9%,37/103),无Ⅲ度及Ⅳ度滑脱患者;滑脱比与退变滑脱节段FCSA/TCSA存在相关性(P=0.000),相关系数γ=-0.425,滑脱比与退变节段FCSA/TCSA存在高度负相关。结论退变性腰椎滑脱症患者退变滑脱节段多裂肌萎缩程度较退变滑脱节段上一非滑脱节段多裂肌萎缩程度严重;退变性腰椎滑脱症患者退变滑脱节段多裂肌萎缩程度与腰椎滑脱程度存在正相关。     

The interspinous ligament of the lumbar spine. Magnetic resonance images and their clinical significance

STUDY DESIGN: A preliminary study of magnetic resonance features of the interspinous ligament in degenerative lumbar spine. OBJECTIVES: To classify the magnetic resonance imaging features of the interspinous ligaments in relation to the patient's age, disc degeneration, and radiographic instability. Magnetic resonance imaging also was correlated with the histologic findings of the interspinous ligaments. SUMMARY OF BACKGROUND DATA: As reported, rupture of the interspinous ligament frequently is found in the degenerative lumbar spine. However, little information is available in the literature on imaging assessment of the interspinous ligament in degenerative lumbar disorders. METHODS: In this study, 24 interspinous ligaments at L1-L2 or L2-L3 from 15 patients with nondegenerated discs were selected to represent normal magnetic resonance features of the interspinous ligament, and 38 patients with the mean age of 49 years underwent functional radiography and magnetic resonance imaging. The magnetic resonance features of the interspinous ligament were classified into five categories according to their signal intensities: Type 1A (low intensity on T1- and T2-weighted images without hypertrophy of the spinal process); Type 1B (same signal pattern as in Type 1A with hypertrophy of spinal process); Type 2 (low intensity on T1- and high intensity on T2-weighted images); Type 3 (high intensity on T1-weighted images); and Type 4 (others). Seven patients with variable patterns of the interspinous ligament were selected to undergo histologic examinations. RESULTS: Of the interspinous ligaments considered normal, 80% were classified as Type 1A. There were 14 Type 1A, 30 Type 1B, 19 Type 2, 16 Type 3, and 20 Type 4 ligaments. The mean age and disc degeneration grade of the patients with the Type 1B ligaments was significantly higher. Instability was found to be associated with Type 2 interspinous ligaments (7 of 19), whereas instability rarely was noted in Types 1A (1 of 14) and 1B (1 of 30) ligaments. The histologic examination revealed that chondrometaplasia and necrotization of fiber bundle predominated in Type 1B, proliferation of cells and vascular invasion in Type 2, fatty degeneration in Type 3 ligaments. CONCLUSIONS: The magnetic resonance imaging characteristics may be helpful in assessing normal or pathologic changes in the interspinous ligaments.     

膝关节韧带损伤的MRI诊断价值

目的:探讨膝关节韧带损伤的MRI特点与诊断价值。方法:收集2008年6月至2010年2月经MRI检查的74例膝关节损伤患者,男47例,女27例;年龄12～76岁,平均37.3岁;病程2h～10d。临床表现为膝关节肿胀、疼痛,关节不稳、伸屈活动障碍,外翻试验、抽屉试验阳性,膝内侧明显压痛。对其MRI表现进行回顾性分析。结果:74例韧带损伤,其中前交叉韧带19例,后交叉韧带18例,外侧副韧带13例,内侧副韧带24例。韧带完全断裂12例,其中8例交叉韧带MR表现为韧带的连续性中断、断端回缩,局部或弥漫性肿胀,PDWI上呈中等信号,T2WI和脂肪抑制序列呈高信号;4例侧副韧带MR表现为韧带连续性中断或韧带肿胀增粗,PDWI上呈中等信号,T2WI和脂肪抑制序列呈高信号。部分纵形撕裂62例,MR表现为韧带连续性完整,韧带增粗,PDWI上呈中等信号,T2WI和脂肪抑制序列呈高信号。经手术、关节镜检查确诊44例,与MRI诊断相符41例。结论:MRI能诊断膝关节韧带损伤,是一种理想的诊断膝关节外伤的检查方法,宜作为常规检查。     

踝关节韧带损伤MRI影像特征

目的探讨踝关节急、慢性损伤状态下踝关节韧带的MRI影像特征。方法对45例踝关节损伤患者行踝关节MR检查,评价踝关节韧带损伤的MRI特征表现,各韧带联合损伤特点,以及儿童踝关节韧带损伤特征。结果 45例患者中韧带损伤64条,急性损伤T2W及PD序列表现为受损韧带信号不均匀增高,韧带部分撕裂或完全断裂,界限不清,周围可见高信号积液影、软组织水肿及邻近骨髓水肿;慢性损伤主要表现为韧带的不规则增粗或变细,信号不均匀。外侧副韧带损伤37例(37/64,57.81%),以距腓前韧带损伤为主(24/45,53.33%)。8例(8/8,100%)患儿均为距腓前韧带损伤。结论踝关节韧带损伤MRI特征表现为T2WI不均匀增高伴韧带撕裂,以距腓前韧带损伤最为常见。     

腰椎滑脱症的MRI诊断价值

目的：评估腰椎滑脱症的MRI表现和诊断价值。方法：搜集64例腰椎滑脱症病例进行腰骶椎MRI检查,包括作矢状位SE T1WI及SET2WI,横轴位SE T1WI及SE T2WI,分析腰椎滑脱症的MRI征象。结果：MRI能准确显示腰椎滑脱症的发生部位和滑脱程度;能显示椎弓峡部裂,能有效显示滑椎关节突关节形态异常,还能显示滑椎的椎间盘变性,膨出,脱出及椎管的形态变化。结论：MRI是诊断腰椎滑脱症的有效检查方法。     

High failure rate of the interspinous distraction device (X-Stop) for the treatment of lumbar spinal stenosis caused by degenerative spondylolisthesis

The X-Stop interspinous distraction device has shown to be an attractive alternative to conventional surgical procedures in the treatment of symptomatic degenerative lumbar spinal stenosis. However, the effectiveness of the X-Stop in symptomatic degenerative lumbar spinal stenosis caused by degenerative spondylolisthesis is not known. A cohort of 12 consecutive patients with symptomatic lumbar spinal stenosis caused by degenerative spondylolisthesis were treated with the X-Stop interspinous distraction device. All patients had low back pain, neurogenic claudication and radiculopathy. Pre-operative radiographs revealed an average slip of 19.6%. MRI of the lumbosacral spine showed a severe stenosis. In ten patients, the X-Stop was placed at the L4–5 level, whereas two patients were treated at both, L3–4 and L4–5 level. The mean follow-up was 30.3 months. In eight patients a complete relief of symptoms was observed post-operatively, whereas the remaining 4 patients experienced no relief of symptoms. Recurrence of pain, neurogenic claudication, and worsening of neurological symptoms was observed in three patients within 24 months. Post-operative radiographs and MRI did not show any changes in the percentage of slip or spinal dimensions. Finally, secondary surgical treatment by decompression with posterolateral fusion was performed in seven patients (58%) within 24 months. In conclusion, the X-Stop interspinous distraction device showed an extremely high failure rate, defined as surgical re-intervention, after short term follow-up in patients with spinal stenosis caused by degenerative spondylolisthesis. We do not recommend the X-Stop for the treatment of spinal stenosis complicating degenerative spondylolisthesis.     

MRI classification of interspinous ligament degeneration of the lumbar spine: intraobserver and interobserver reliability and the frequency of disagreement

Posterior spinal ligament pathology is becoming increasingly recognized as a significant cause of low back pain. Despite the growing clinical importance of interspinous ligament degeneration in low back pain patients, formal reliability studies for the magnetic resonance imaging (MRI) evaluation of interspinous ligaments have not been performed. We proposed an MRI classification system for interspinous ligament degeneration and conducted a comprehensive reliability and reproducibility assessment. Fifty patients who had low back pain with or without leg discomfort (26 males and 24 females) with a mean age of 48.8 years (range 23–85 years) were studied. The classification for lumbar interspinous ligament degeneration was developed on the basis of the literature using mid-sagittal T1- and T2-weighted images. Three spine surgeons independently graded a total of 200 interspinous ligament levels. Intraobserver and interobserver reliability were assessed by kappa statistics. The frequency of disagreement was also identified. The intraobserver agreement was excellent in all readers (kappa range 0.840–0.901). The interobserver agreement was lower as expected, and was substantial to excellent (kappa range 0.726–0.818). Overall complete agreement was obtained in 87.8% of all interspinous ligament levels. A difference of 1, 2, and 3 grades occurred in 8.1, 3.0, and 1.1% of readings, respectively. This proposed MRI classification of interspinous ligament degeneration was simple, reliable, and reproducible. Its use as a standardized nomenclature in clinical and radiographic research may be recommended.     

Anterolisthesis and retrolisthesis of the cervical spine in cervical spondylotic myelopathy in the elderly

Background Degenerative spondylolisthesis of the cervical spine has received insufficient attention in contrast to that of the lumbar spine. The authors analyzed the functional significance of anterior and posterior degenerative spondylolisthesis (anterolisthesis and retrolisthesis) of the cervical spine to elucidate its role in the development of cervical spondylotic myelopathy (CSM) in the elderly. Methods A total of 79 patients aged 65 or older who eventually had surgical treatment for CSM were evaluated radiographically. Results Altogether, 24 patients (30%) had displacement of 3.5 mm or more (severe spondylolisthesis group), 31 had displacement of 2.0–3.4 mm (moderate spondylolisthesis group), and 24 had less than 2.0 mm displacement (mild spondylolisthesis group). The severe spondylolisthesis group consisted of 14 patients with anterolisthesis (anterolisthesis group) and 10 patients with retrolisthesis (retrolisthesis group). Patients with severe spondylolisthesis had a high incidence (93%) of degenerative spondylolisthesis at C3/4 or C4/5 and significantly greater cervical mobility than those with mild spondylolisthesis. The anterolisthesis group, but not the retrolisthesis group, had a significantly wider spinal canal than the mild spondylolisthesis group, although the degree of horizontal displacement and cervical mobility did not differ significantly between the anterolisthesis and retrolisthesis groups. Severe cord compression seen on T1-weighted magnetic resonance imaging (MRI) scans and high-intensity spinal cord signals seen on T2-weighted MRI scans corresponded significantly to the levels of the spondylolisthesis. Conclusions Degenerative spondylolisthesis is not a rare radiographic finding in elderly patients with CSM, which tends to cause intense cord compression that is seen on MRI scans. Greater mobility of the upper cervical segments may be a compensatory reaction for advanced disc degeneration of the lower cervical segments, leading to the development of degenerative spondylolisthesis. With a similar degree of displacement, anterolisthesis tends to have a greater impact on the development of CSM than retrolisthesis.     

MRI诊断胸腰椎骨折后柱韧带复合体损伤的可靠性研究

目的 探讨MRI诊断胸腰椎骨折患者后柱韧带复合体（posterior ligamentous complex，PLC）损伤的真实性与可靠性。方法2004年12月至2005年6月，胸腰椎骨折患者82例，男54例，女28例；年龄14-75岁，平均45．8岁；高处坠落伤47例，交通事故伤15例，重物压伤7例，其他损伤13例。82例患者中单节段骨折65例，双节段骨折16例，三节段骨折1例（有连续两个节段骨折），损伤节段共100处。术前对胸腰椎骨折患者进行MR检查，评价PLC损伤情况。术中探查并记录PLC损伤程度。分析MRI诊断PLC各部分损伤的灵敏度、特异度和符合率。结果 MRI诊断棘问韧带、棘上韧带和黄韧带损伤的灵敏度分别为92.3％、95.2％和93.3％，特异度分别为98．6％、98．7％和100．0％，符合率分别为97．0％、98．0％和99．0％。MRI显示小关节囊损伤22例，术中探查小关节囊损伤21例。MR检查PLC损伤的整体符合率Kappa值为0．786。结论 MRI是诊断PLC损伤的有效方法，具有灵敏度、特异度及符合率高的特点，与术中所见高度一致。     

前交叉韧带损伤:3.0TMR影像与关节镜对照分析

目的分析膝关节前交叉韧带损伤的3．0TMRI特征,并与关节镜手术结果对照。方法回顾性分析来我院行3．0T MR膝关节检查的36例前交叉韧带损伤患者的40个膝关节,全部病例经关节镜检查确诊。应用3．0T MR机（Philips Achieva型）,膝关节专用线圈,进行斜矢状位TSE T1WI、TSE T2WI、PD-SPIR和冠状位、轴位TSE T2WI扫描。前交叉韧带损伤分为完全断裂、撕裂（部分断裂）及胫骨端撕脱。将膝关节前交叉韧带损伤的3．0T MR影像特征与关节镜手术结果进行对照分析。结果前交叉韧带完全断裂MRI直接征象表现为韧带连续性中断,断端肿胀（21／25）,间接征象为交叉韧带过度弯曲、T2WI和PD-SPIR股骨髁间窝外侧骨挫伤;MRI与关节镜诊断完全符合率为84．00％。前交叉韧带撕裂（部分断裂）MRI直接征象为ACL矢状T2WI和PD-SPIR显示形态不规则、部分撕裂,ACL局部肿胀增粗,信号增高,仍可见连续存在的纤维低信号;MRI与关节镜诊断完全符合率为66．67％。前交叉韧带胫骨端撕脱MR检查直接征像为胫骨近端可见T1WI、T2WI低信号撕脱骨片（3／3）,ACL水肿、形态不规则,周围可见出血、积液,MRI与关节镜诊断符合率为100％。结论高场强3．0TMR膝关节诊断的多平面、多序列影像相结合可形成ACL立体影像观,结合临床能够有效诊断ACL损伤。