Clinical study on improving the diagnostic accuracy of adult elbow joint cartilage injury by multisequence magnetic resonance imaging

BACKGROUND Due to frequent and high-risk sports activities,the elbow joint is susceptible to injury,especially to cartilage tissue,which can cause pain,limited movement and even loss of joint function.AIM To evaluate magnetic resonance imaging(MRI)multisequence imaging for improving the diagnostic accuracy of adult elbow cartilage injury.METHODS A total of 60 patients diagnosed with elbow cartilage injury in our hospital from January 2020 to December 2021 were enrolled in this retrospective study.We analyzed the accuracy of conventional MRI sequences(T1-weighted imaging,T2-weighted imaging,proton density weighted imaging,and T2 star weighted image)and Three-Dimensional Coronary Imaging by Spiral Scanning(3D-CISS)in the diagnosis of elbow cartilage injury.Arthroscopy was used as the gold standard to evaluate the diagnostic effect of single and combination sequences in different injury degrees and the consistency with arthroscopy.RESULTS The diagnostic accuracy of 3D-CISS sequence was 89.34%±4.98%,the sensitivity was 90%,and the specificity was 88.33%,which showed the best performance among all sequences(P<0.05).The combined application of the whole sequence had the highest accuracy in all sequence combinations,the accuracy of mild injury was 91.30%,the accuracy of moderate injury was 96.15%,and the accuracy of severe injury was 93.33%(P<0.05).Compared with arthroscopy,the combination of all MRI sequences had the highest consistency of 91.67%,and the kappa value reached 0.890(P<0.001).CONCLUSION Combination of 3D-CISS and each sequence had significant advantages in improving MRI diagnostic accuracy of elbow cartilage injuries in adults.Multisequence MRI is recommended to ensure the best diagnosis and treatment.

Effect of sodium hyaluronate combined with rehabilitation training on knee joint injury caused by golf

BACKGROUND In high-intensity sports like golf,knee joints are prone to injury,leading to pain,limited mobility,and decreased quality of life.Traditional treatment methods typically involve rehabilitation exercises,but their effectiveness may be limited.In recent years,sodium hyaluronate has emerged as a widely used biomedical material in the treatment of joint diseases.AIM To explore the effect of sodium hyaluronate combined with rehabilitation training on pain degree,flexion range of motion and motor function of knee joint injured by golf.METHODS Eighty patients with knee joint injury caused by golf were randomly divided into control(group B)and observation group(group A).The group B was treated with rehabilitation training,and the group A was treated with sodium hyaluronate combined with rehabilitation training.The clinical efficacy,range of motion and function of knee joint,quality of life and inflammatory factors were compared.RESULTS The excellent and good rate of rehabilitation in the group A was raised than group B.At 6 weeks and 3 months after treatment,the range of motion of the two groups was raised than that before treatment,and that of the group A was raised than group B.After treatment,the scores of Lysholm and International Knee Documentation Committee(IKDC)in the group A were raised,and those in the group A were raised than group B.The VAS score of the two groups was reduced than that of the group B,and the SF-36 score of the group A was reduced than group B.The interleukin(IL)-1β,IL-8 and tumor necrosis factor-αin the two groups were reduced,and those in the group A were reduced than group B.CONCLUSION Sodium hyaluronate combined with rehabilitation training has a good clinical effect in the treatment of patients with knee joint injury caused by golf,which relieve pain,maintain knee joint function and improve patients'life quality.

Elevated levels of interleukin-1β, interleukin-6, tumor necrosis factor-α and vascular endothelial growth factor in patients with knee articular cartilage injury

BACKGROUND Inflammatory cytokines play a vital role in the occurrence of osteoarticular injury and inflammation. Whether inflammation-associated factors interleukin-1β(IL- 1β), IL-6, tumor necrosis factor-α(TNF-α) and vascular endothelial growth factor (VEGF) are involved in the pathogenesis of keen articular cartilage injury remains poorly understood. AIM To measure the levels of inflammatory factors [IL-1β, IL-6, TNF-α and VEGF] in patients with knee articular cartilage injury. METHODS Fifty-five patients with knee articular cartilage injury were selected as patient groups, who were divided into three grades [mild (n = 20), moderate (n = 19) and severe (n = 16)] according to disease severity and X-ray examinations. Meanwhile, 30 healthy individuals who underwent physical examination were selected as the control group. The levels of IL-1β, IL-6, TNF-α and VEGF were measured by ELISA and immunohistochemical staining. RESULTS Compared with the control group, patient groups displayed significantly higher levels of IL-1β, IL-6, TNF-α and VEGF, and the extent of increase was directly proportional to the severity of injury (P < 0.05). In addition, the number of cells with positive staining of IL-1β, IL-6, TNF-α and VEGF in the synovial membrane were significantly increased, along with increased disease severity (P < 0.05). After treatment, the scores of visual analogue scale and the Western Ontario and McMaster University of Orthopaedic Index in patient groups were 2.26 ± 1.13 and 15.56 ± 7.12 points, respectively, which were significantly lower than those before treatment (6.98 ± 1.32 and 49.48 ± 8.96). Correlation analysis suggested that IL-1β and TNF-α were positively correlated with VEGF. CONCLUSION IL-1β, IL-6, TNF-α and VEGF levels are increased in patients with knee articular cartilage injury, and are associated with the disease severity, indicating they might play an important role in the occurrence and development of knee articular cartilage injury. Furthermore, therapeutically targeting them might be a novel approach for the treatment of keen articular cartilage injury.

Establishing minimum clinically important difference values for the Patient-Reported Outcomes Measurement Information System Physical Function, hip disability and osteoarthritis outcome score for joint reconstruction, and knee injury and osteoarthritis out

AIM To establish minimum clinically important difference(MCID) for measurements in an orthopaedic patient population with joint disorders.METHODS Adult patients aged 18 years and older seeking care for joint conditions at an orthopaedic clinic took the Patient-Reported Outcomes Measurement Information System Physical Function(PROMIS~? PF) computerized adaptive test(CAT), hip disability and osteoarthritis outcome score for joint reconstruction(HOOS JR), and the knee injury and osteoarthritis outcome score for joint reconstruction(KOOS JR) from February 2014 to April 2017. MCIDs were calculated using anchorbased and distribution-based methods. Patient reports of meaningful change in function since their first clinic encounter were used as an anchor.RESULTS There were 2226 patients who participated with a mean age of 61.16(SD = 12.84) years, 41.6% male, and 89.7% Caucasian. Mean change ranged from 7.29 to 8.41 for the PROMIS~? PF CAT, from 14.81 to 19.68 for the HOOS JR, and from 14.51 to 18.85 for the KOOS JR. ROC cut-offs ranged from 1.97-8.18 for the PF CAT, 6.33-43.36 for the HOOS JR, and 2.21-8.16 for the KOOS JR. Distribution-based methods estimated MCID values ranging from 2.45 to 21.55 for the PROMIS~? PF CAT; from 3.90 to 43.61 for the HOOS JR, and from 3.98 to 40.67 for the KOOS JR. The median MCID value in the range was similar to the mean change score for each measure and was 7.9 for the PF CAT, 18.0 for the HOOS JR, and 15.1 for the KOOS JR.CONCLUSION This is the first comprehensive study providing a wide range of MCIDs for the PROMIS? PF, HOOS JR, and KOOS JR in orthopaedic patients with joint ailments.

Perspectives on endogenous and exogenous tissue engineering following injury to tissues of the knee

The knee is a multi-component organ system comprised of several tissues which function coordinately to provide mobility. Injury to any one component compromises the integrity of the system and leads to adaptation of the other components. Over time, such events often lead to dysfunction and degeneration of the knee. Therefore, there has been considerable research emphasis to repair injured components in the knee including cartilage, menisci, and ligaments. Approaches to improving healing and repair/regeneration of knee tissues have included surgery, anti-sense gene therapy, injection of growth factors and inflammatory cytokine antagonists, transplantation of in vitro expanded chondrocytes, enhancement of endogenous cells via microfracture, injection of mesenchymal stem cells, and implantation of in vitro tissue engineered constructs. Some of these approaches have lead to temporary improvement in knee functioning, while others offer the potential to restore function and tissue integrity for longer periods of time. This article will review the status of many of these approaches, and provide a perspective on their limitations and potential to contribute to restoration of knee function across the lifespan.

New Classification and Visual Analysis of the Patella Cartilage during Total Knee Replacement

Objective: The aim of this prospective study is to evaluate how much damage the patellar cartilage presents during a total knee replacement. Methods: The damage of the articular patellar surface was analysed by visual inspection and photographs in 354 primary total knee replacements. The authors graded the degree of cartilage lesion in five groups. The cartilage status was analyzed and correlated with age, gender, side, body mass index (BMI), Kellgren-Lawrence radiographic scale and axial deviation. Results: After statistical analysis, we concluded: there was no evidence of an association between patellar arthrosis and age gender, side, weight and deformity. Conclusions: Articular cartilage was damaged in all 354 knees. Important subchondral bone exposure occurred in 274 knees (77.4%). Obese patients had more severe patellar osteoarthritis.

Study on the Microstructure of Human Articular Cartilage/Bone Interface

For improving the theory of gradient microstructure of cartilage/bone interface, human distal femurs were studied. Scanning Electron Microscope （SEM）, histological sections and MicroCT were used to observe, measure and model the micro- structure of cartilage/bone interface. The results showed that the cartilage/bone interface is in a hierarchical structure which is composed of four different tissue layers. The interlocking of hyaline cartilage and calcified cartilage and that of calcified car- tilage and subchondral bone are in the manner of＂protrusion-pore＂ with average diameter of 17.0 gm and 34.1 lam respectively. In addition, the cancellous bone under the cartilage is also formed by four layer hierarchical structure, and the adjacent layers are connected by bone trabecula in the shape of H, I and Y, forming a complex interwoven network structure. Finally, the simplified structure model of the cartilage/bone interface was proposed according to the natural articular cartilage/bone interface. The simplified model is a 4-layer gradient biomimetic structure, which corresponds to four different tissues of natural cartilage/bone interface. The results of this work would be beneficial to the design of bionic scaffold for the tissue engineering of articular cartilage/bone.

Non-invasive MRI assessment of the articular cartilage in clinical studies and experimental settings

Attrition and eventual loss of articular cartilage are important elements in the pathophysiology of osteoarthritis(OA).Preventing the breakdown of cartilage is believed to be critical to preserve the functional integrity of a joint.Chondral injuries are also common in the knee joint,and many patients benefit from cartilage repair.Magnetic resonance imaging(MRI) and advanced digital post-processing techniques have opened possibilities for in vivo analysis of cartilage morphology,structure,and function in healthy and diseased knee joints.Techniques of semi-quantitative scoring of human knee cartilage pathology and quantitative assessment of human cartilage have been developed.Cartilage thickness and volume have been quantified in humans as well as in small animals.MRI detected cartilage loss has been shown to be more sensitive than radiographs detecting joint space narrowing.It is possible to longitudinally study knee cartilage morphology with enough accuracy to follow the disease-caused changes and also evaluate the therapeutic effects of chondro-protective drugs.There are also several MRI methods that may allow evaluation of the glycosaminoglycan matrix or collagen network of articular car-tilage,and may be more sensitive for the detection of early changes.The clinical relevance of these methods is being validated.With the development of new therapies for OA and cartilage injury,MR images will play an important role in the diagnosis,staging,and evaluation of the effectiveness of these therapies.

Neuromuscular interactions around the knee in children, adults and elderly

Although injury and neuromuscular activation patterns may be common for all individuals, there are certain factors which differentiate neuromuscular activity responses between children, adults and elderly. The purpose of this study is to review recent evidence on age differences in neural activation and muscle balances around the knee when performing single joint movements. Particularly, current evidence indicates that there are some interesting similarities in the neuromuscular mechanisms by which children or the elderly differ compared with adults. Both children and elderly display a lower absolute muscle strength capacity than adults which cannot fully be explained by differences in muscle mass. Quadriceps activation failure is a common symptom ofall knee injuries, irrespective of age but it is likely that its effect is more evident in children or adults. While one might expect that antagonist co-activation would differ between age categories, it appears that this is not the case. Although hamstring: quadriceps ratio levels are altered after knee injury, it is not clear whether this is an age specific response. Finally, evidence suggests that both children and the elderly display less stiffness of the quadriceps muscle-tendon unit than adults which affects their knee joint function.

关节镜下自体骨软骨移植对膝关节局限性软骨损伤的临床疗效评价

目的探讨关节镜下自体骨软骨移植术对膝关节局限性软骨损伤的临床疗效,并以磁共振成像(MRI)检查对疗效进行评价。方法选取2018年6月至2021年6月诊治的100例膝关节局限性软骨损伤患者,按随机数字表法分为研究组和对照组,每组各50例。研究组采取关节镜下自体骨软骨移植术,对照组采取微骨折术治疗。采用MRI评估其手术疗效,并记录其术后膝关节软骨愈合时间;采用Lysholm膝关节功能评分表、国际膝关节文献委员会(IKDC)膝关节评估表,评估患者治疗前后膝关节功能变化;统计患者术后并发症发生率。结果研究组关节软骨愈合优良率98.00%,高于对照组84.00%(P<0.05)。两组术前和术后3个月的Lysholm评分、IKDC评分比较差异无统计学意义(P>0.05);术后6、12、24个月,研究组Lysholm评分、IKDC评分均高于对照组(P<0.05)。两组患者术后均无严重并发症,且并发症发生率差异无统计学意义(P>0.05)。研究组术后膝关节软骨愈合时间短于对照组(P<0.05)。结论关节镜下自体骨软骨移植术对膝关节局限性软骨损伤的远期治疗效果显著,可有效改善患者术后膝关节功能,缩短膝关节软骨愈合时间,安全性高。

浮针治疗早中期膝骨关节炎对软骨厚度的影响

目的观察浮针疗法治疗早中期膝骨关节炎对关节软骨厚度的影响。方法将60例早中期膝骨关节炎患者随机分为治疗组和对照组,每组30例。治疗组采用浮针治疗,对照组采用电针治疗。观察两组治疗前后疼痛视觉模拟量表(visual analog scale,VAS)评分、疼痛开始缓解时间、Lysholm膝关节功能评分、平衡功能及股骨内侧和外侧髁软骨厚度的变化。结果治疗组疼痛开始缓解时间短于对照组(P<0.05)。治疗后,两组VAS评分以及平衡功能的横向标准差和前后标准差均较治疗前降低(P<0.05),Lysholm膝关节功能评分、平衡功能的稳定极限均较治疗前升高(P<0.05)。治疗后3个月,两组VAS评分较治疗前降低(P<0.05),Lysholm膝关节功能评分较治疗前升高(P<0.05),膝关节内外侧髁软骨厚度均较治疗前增加(P<0.05)。治疗后和治疗后3个月,治疗组VAS评分均低于对照组(P<0.05),Lysholm膝关节功能评分均高于对照组(P<0.05)。治疗后,治疗组横向标准差低于对照组(P<0.05),稳定极限高于对照组(P<0.05)。结论浮针治疗早中期膝骨关节炎起效速度优于电针治疗,能有效缓解疼痛症状及提高膝关节功能,可改善软骨损伤。

磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值

目的探讨磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值。方法选取2020年1月至2022年11月在我院治疗的110例膝关节早期软骨退变患者(观察组),按照疾病严重程度分为轻度退变组及重度退变组,另选取同期在我院进行体检的64例健康者为对照组,受试者均行磁共振T1rho序列、T2 mapping技术扫描,测量受试者T2值及T1ρ值,探讨磁共振T1rho序列、T2 mapping技术在膝关节早期软骨退变早期诊断中的评估价值。结果观察组股骨外侧面、股骨内侧面、胫骨外侧面、胫骨内侧面、髋骨面T2值均明显高于对照组(P<0.05),重度退变亚组患者股骨外侧面、股骨内侧面、胫骨外侧面、胫骨内侧面、髋骨面T2值显著高于轻度退变者(P<0.05);观察组股骨内踝负重区、股骨内踝非负重区、股骨外踝负重区、股骨外踝非负重区、胫骨外侧平台区、胫骨内侧平台区、髌后软骨区磁共振T1ρ值明显高于对照组(P<0.05),重度退变亚组患者股骨内踝负重区、股骨内踝非负重区、股骨外踝负重区、股骨外踝非负重区、胫骨外侧平台区、胫骨内侧平台区、髌后软骨区磁共振T1ρ值明显高于轻度退变亚组患者(P<0.05);磁共振T1rho序列在膝关节早期软骨退变中早期诊断及严重程度评估中的的诊断ROC值及特异度明显高于T2 mapping技术(P<0.05),但后者具有更高的敏感度(P<0.05)。结论磁共振T1rho序列、T2 mapping技术均能有效反映膝关节早期软骨退变中软骨组织学成分变化情况,还可为膝关节软骨退变严重程度评估提供客观依据,二者具有一定互补价值。

贝母素乙调节RhoA/ROCK信号通路对膝骨关节炎大鼠软骨损伤的影响

目的 探讨贝母素乙调节Ras同源基因家族成员A(RhoA)/Rho相关的卷曲螺旋激酶(ROCK)信号通路对膝骨关节炎(knee osteoarthritis, KOA)大鼠软骨损伤的影响。方法 以碘乙酸钠(MIA)法制备KOA大鼠模型,随机分为模型组、贝母素乙(3.5 mg/kg)组、贝母素乙(3.5 mg/kg)+LPA(RhoA激活剂,1 mg/kg)组,每组10只,另选10只大鼠为对照组。机械刺激法和热辐射法检测大鼠膝关节疼痛症状;检测大鼠关节肿胀度、膝关节宽度并以步态评分评测其关节功能;透射电镜检测大鼠膝关节软骨细胞超微结构;TUNEL染色检测大鼠关节软骨细胞凋亡比;酶联免疫吸附(ELISA)法检测大鼠血清和关节液促炎因子白细胞介素(IL)-18、单核细胞趋化蛋白1(MCP-1)水平;免疫印迹检测各组大鼠关节软骨组织凋亡(Cleaved caspase-3、Bax)和RhoA/ROCK通路相关蛋白表达。结果 贝母素乙可降低KOA大鼠关节肿胀度、膝关节宽度、步态评分、软骨细胞凋亡比、血清及关节液IL-18、MCP-1水平、软骨组织Cleaved caspase-3、Bax、RhoA、ROCK1、ROCK1蛋白表达,升高机械痛阈值、热痛阈值(P<0.05);LPA可减弱贝母素乙对KOA大鼠关节软骨损伤的改善作用。结论 贝母素乙可通过抑制RhoA/ROCK信号激活而抑制KOA大鼠关节炎症反应和关节软骨细胞凋亡,减轻软骨损伤。

MRI检查指标、血清骨钙素、MMP-1及IL-1对膝骨关节炎合并软骨损伤的预测价值

目的探讨磁共振成像(MRI)及血清骨钙素、基质金属蛋白酶(MMP-1)及白细胞介素-1(IL-1)对膝骨关节炎合并软骨损伤的预测价值。方法回顾性分析2021年8月至2023年5月广西贵港市人民医院收治的84例膝骨关节炎患者的临床资料。入院后均行关节镜检查,依据检查结果是否合并软骨损伤分组,分为合并组(n=40)与未合并组(n=44)。比较两组资料[性别、年龄、体重指数、合并疾病(高血压、高脂血症、糖尿病)、病变部位(左膝、右膝)、饮酒史、吸烟史]、MRI不同区域软骨T_(2)值[股骨外侧(LF)、股骨内侧(MF)、胫骨外侧(LT)、胫骨内侧(MT)、髌骨区(P)]以及血清骨钙素、MMP-1、IL-1水平。通过多因素采取非条件Logistic逐步回归分析明确膝骨关节炎合并软骨损伤的危险因素。通过受试者操作特征(ROC)曲线分析MRI不同区域软骨T_(2)值、血清骨钙素、MMP-1、IL-1预测膝骨关节炎合并软骨损伤的价值。结果两组性别构成比、年龄、体重指数、病变部位、合并高血压、高脂血症、糖尿病、饮酒史、吸烟史比较,差异均无统计学意义(P>0.05);合并组MRI不同区域软骨T_(2)值以及血清骨钙素、MMP-1、IL-1水平均显著高于未合并组,差异均有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,MRI不同区域软骨T_(2)值、骨钙素、MMP-1、IL-1是膝骨关节炎患者合并软骨损伤的危险因素(P<0.05)。经ROC分析证实,LF软骨T_(2)值、MF软骨T_(2)值、LT软骨T_(2)值、MT软骨T_(2)值、P软骨T_(2)值、骨钙素、MMP-1、IL-1最佳截断值分别为39.705 ms、44.250 ms、36.855 ms、35.715 ms、38.005 ms、6.655μg/L、7.335μg/L、389.340 pg/mL,曲线下面积分别为0.796、0.840、0.859、0.882、0.728、0.705、0.763、0.721,均有较高预测价值(P<0.05)。结论MRI不同区域软骨T_(2)值、血清骨钙素、MMP-1、IL-1是膝骨关节炎合并软骨损伤的危险因素;同时LF软骨T_(2)值≥39.705 ms、MF软骨T_(2)值≥44.250 ms、LT软骨T_(2)值≥36.855 ms、MT软骨T_(2)值≥35.715 ms、P软骨T_(2)值≥38.005 ms、骨钙素≥6.655μg/L、MMP-1≥7.335μg/L、IL-1≥389.340 pg/mL可用于预测此类患者合并风险。

CT与MRI在膝关节软骨损伤分级诊断中的效能分析

目的:探究CT与MRI在膝关节软骨损伤分级诊断中的效能。方法:回顾性选取我院2021年1月-2023年1月收治的80例膝关节软骨损伤患者为研究对象,对所有患者行CT、MRI和关节镜检查,通过关节镜检查的结果,评估二者的分级诊断效能,并比较CT与MRI在膝关节软骨损伤分级诊断中的诊断价值。结果:患者经CT检查诊断的分级结果为Ⅰ级28例,Ⅱ级34例,Ⅲ级及以上18例;经MRI检查诊断的分级结果为Ⅰ级31例,Ⅱ级29例,Ⅲ级及以上20例。与关节镜检查的结果对比,CT的分级诊断准确率为81.25%(65/80),MRI的分级诊断准确率为95.00%(76/80)。MRI检查诊断膝关节软骨损伤患者的Ⅰ级诊断准确率、总准确率要高于CT检查,差异有统计学意义(P<0.05)。结论:CT与MRI均可对膝关节软骨损伤进行分级诊断,但MRI对膝关节软骨损伤分级的诊断准确率高于CT,具有更高的诊断效能。

MSCT和MRI在膝关节半月板、关节软骨损伤诊断及分期评估中的应用

目的:探讨多层螺旋CT(MSCT)与磁共振成像(MRI)在膝关节半月板及关节软骨损伤(MACI)诊断及分期评估中的价值。方法:对97例均接受MSCT、MRI检查的MACI患者的临床资料进行回顾性分析,金标准为关节镜诊断结果,分析MSCT、MRI的诊断效能。结果:关节镜诊断结果显示,97例患者的194个半月板中,损伤103个,未损伤91个;97例患者存在582个关节软骨面,其中损伤284个,未损伤298个;MSCT诊断结果显示,97例患者存在194个半月板,损伤106个,未损伤88个;MRI诊断结果显示,97例患者存在194个半月板,损伤109个,未损伤85个。MRI诊断膝关节半月板损伤和软骨关节损伤的准确度、特异度及敏感度均高于MSCT(P<0.05);MRI对半月板损伤分级和软骨关节损伤分期的诊断准确率高于MSCT。结论:MRI在MACI诊断中的价值优于MSCT,能准确反映损伤严重程度。

青鹏软膏超声波导入对膝关节军事训练伤的疗效研究

背景膝关节损伤是常见的军事训练伤,严重影响战士的战斗力,近年军事训练伤的防治变得越发重要。超声波治疗和青鹏软膏是常用的运动损伤疗法,但是两者联合应用的研究较少。目的分析青鹏软膏超声波导入治疗军事训练致膝关节损伤的临床效果。方法选取2022年5—7月在中国人民解放军西部战区总医院第五派驻门诊部治疗的膝关节损伤患者56例,利用IBM-SPSS 25.0统计软件产生随机数字后进行随机分组,分为对照组(研究过程中脱落4例,n=24)与治疗组(n=28)。对照组给予普通耦合剂超声波治疗,治疗组给予青鹏软膏超声波导入治疗,1次/d,1个疗程10次,共2个疗程。比较两组治疗前后Lysholm膝关节评分、视觉模拟评分法(VAS)评分、汉密尔顿抑郁量表(HAMD-17)评分、膝关节活动度。结果治疗前,两组患者Lysholm膝关节评分、VAS评分、HAMD-17评分、膝关节活动度比较,差异无统计学意义(P>0.05)。治疗2个疗程,治疗组患者膝关节被动关节活动度优于对照组(P<0.05)。治疗2个疗程后,两组患者Lysholm膝关节评分高于治疗前,VAS评分低于治疗前(P<0.05)。与治疗前相比,治疗组治疗2个疗程膝关节主动关节活动度、被动关节活动度增加(P<0.05);与治疗前比较,治疗组患者治疗2个疗程HAMD-17评分降低(P<0.05)。结论青鹏软膏超声导入治疗与普通耦合剂超声波两种治疗方法均可显著增加Lysholm膝关节评分,改善膝关节功能;降低膝关节损伤患者VAS评分,缓解疼痛。青鹏软膏作为超声波治疗的特殊耦合剂,相比普通耦合剂,具有一定的优势。

基于膝关节MR图像的分割模型构建及验证

目的:构建并验证一种膝关节MR图像分割算法,旨在解决软骨细小结构识别困难、分割边界模糊、错分等问题,发现软骨的早期病变,帮助医生诊断膝骨关节炎等慢性疾病。方法:使用膝关节公开数据集SKI10进行实验验证,划分为训练集(60%)、验证集(20%)、测试集(20%);基于Transformer方法和U-Net方法,提出融合通道注意力机制和边界注意力机制的新型网络架构CE-TransUNet;以平均Dice相似系数(DSC)为主要评价指标,探索模型在膝关节MR图像分割中的性能。结果:与经典算法进行对比,CE-TransUNet具有更好的分割效果,其DSC指数达到了90.48%,在股骨和胫骨上DSC分别达到了93.55%和93.10%,在股骨软骨和胫骨软骨上DSC分别达到了87.69%和87.58%。结论:CE-TransUNet分割结果与人工分割结果有很好的一致性。其分割效果优于对比网络模型,为膝关节软骨的自动分割提供了一种新思路,能够帮助临床诊断,有较好的应用前景。

医护一体化护理对膝关节前交叉韧带损伤患者术后疼痛及关节功能康复的影响

目的探讨医护一体化护理对膝关节前交叉韧带损伤(ACL)患者术后疼痛及关节功能康复的影响。方法选取本院2021年3月~2022年12月收治的111例膝关节ACL损伤患者。按照随机化原则,分为对照组(n=55,常规护理)与观察组(n=56,医护一体化护理)。比较两组膝关节功能、疼痛程度、生活质量及并发症。结果两组护理后Lysholm评分及RF、RP、BP、GH各维度评分较护理前增高,VAS评分均较护理前下降,观察组上述评分增高/降低程度明显优于对照组;观察组ROM恢复时间短于对照组(P<0.05);观察组并发症总发生率为7.14%,对照组21.82%(P<0.05)。结论医护一体化护理可缓解膝关节ACL损伤患者术后疼痛,促进膝关节功能恢复,提高生活质量。

MRI诊断膝关节外伤性骨挫伤的效果

目的:分析MRI诊断膝关节外伤性骨挫伤的效果。方法:选取2023年2月—2024年3月天长市人民医院接诊的疑似膝关节外伤性骨挫伤患者79例作为研究对象,均接受CT、MRI检查。以关节镜及组织学检查结果为“金标准”,比较MRI和CT的灵敏度、特异度、准确度,对膝关节外伤性骨挫伤分型、损伤类型的检出率。结果:MRI诊断灵敏度、准确度高于CT,差异有统计学意义(P<0.05);MRI、CT诊断特异度比较,差异无统计学意义(P>0.05)。MRI和CT对膝关节外伤性骨挫伤分型的检出率比较,差异无统计学意义(P>0.05)。MRI韧带损伤、半月板损伤、积液、软组织肿胀检出率高于CT,差异有统计学意义(P<0.001)。结论:MRI诊断膝关节外伤性骨挫伤的灵敏度、准确度较高,对韧带损伤、半月板损伤、积液、软组织肿胀等损伤类型的检出率较高。