Purpose: To study the normal meniscus and articular cartilage of the knee with low field MRI.
目的：研究正常膝关节半月板及关节软骨的低场MRI表现。
Methods Chondrocytes isolated from articular cartilage and meniscus of rabbits aged 3 weeks were respectively passaged in monolayer and cultured in centrifuge tube.
方法分别自3周龄大耳白兔关节软骨和半月板分离软骨细胞，行单层传代培养和离心管培养。
Results cartilage cultured in centrifuge tube possessed unique ultrastructure and was similar to articular cartilage and growth plate, but it was markedly different from meniscus.
结果离心管培养软骨具有独特的超微结构，与关节软骨和生长板有一定的相似性，而与半月板有明显区别。
Cartilage cultured in centrifuge tube has unique ultrastructure and was similar to articular chondrocyte and epiphyseal plate, but it was markedly different from meniscus.
离心管培养形成的软骨有独特的超微结构，与关节软骨及骺板有一定的相似性，而与半月板有明显区别。
MRI can delineate normal meniscus and articular cartilage.
MRI显示正常半月板及关节软骨的外形、信号强度。
With meniscus extrusion, the meniscus is unable to resist hoop stresses and cannot shield the adjacent articular cartilage from excessive axial load.
与半月板挤压，半月板是无法抗拒箍强调，不能屏蔽邻近关节软骨过度轴向载荷。
Gonarthritis, a degenerative osteoarthrosis commonly found in old and middle-aged people, has symptoms of articular cartilage denudation, hyperosteogeny, meniscus injury, synovitis, etc.
膝骨关节是骨关节结构广泛退行性的一种中老年常见病。包括：关节软骨剥脱、骨质增生、半月板损伤、滑膜炎等一系列改变。
Purpose of the study: Influences of total meniscectomy on articular cartilage of knee is studied to provide theoretical basis for selection of treatment methods for meniscus injury.
目的：研究在胫骨外侧髁骨折中关节面塌陷和外侧半月板切除对膝关节轴线、接触面积及压力的影响。
The preoperative diagnosis were meniscus lesion in 4 knees, articular cartilage injury in 2 knees, patellofemoral osteoarthritis in 1 knee, and Hoffa s disease in 4 knees.
术前诊断为半月板损伤4例，关节软骨损伤2例，髌股关节骨性关节炎1例，髌下脂肪垫损伤4例。
Figure 9 - 1 : Degenerated articular cartilage and torn meniscus of the knee.
图9-1：膝关节退化的软骨和撕裂的半月板。
Knee joint injury manifested as bone contusion or bone contusion accompanied with bone fracture, joint effusion, meniscus injury, ligament injury, para-articular soft tissue injuries with MRI.
MRI表现分别为骨挫伤伴或不伴骨折、关节腔积液、半月板损伤、韧带损伤、关节周围软组织损伤。
Knee joint injury manifested as bone contusion or bone contusion accompanied with bone fracture, joint effusion, meniscus injury, ligament injury, para-articular soft tissue injuries with MRI.
MRI表现分别为骨挫伤伴或不伴骨折、关节腔积液、半月板损伤、韧带损伤、关节周围软组织损伤。
应用推荐