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Morphology of intra-articular structures and histology of menisci of knee joint

机译:膝关节关节内结构的形态和半月板的组织学

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Introduction: Menisci and cruciate ligaments are intra-articular structures of knee, and injury to these structures is common. Morphometric data gained in the study will help in analyzing the variations among humans and correlating it with the possibility, location, and type of injuries as well as better interpretation of structures during magnetic resonance imaging and arthroscopy which will further help in reconstructive surgeries of knee. Materials and Methods: Width and thickness of the medial menisci (MM), lateral menisci (LM), and maximum length and width of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were taken on twenty knees. Histological examination of menisci was done. Results: Width of MM was 0.601–0.700 cm at anterior horn (AH) in 45% of cases, 1.000–1.500 cm at posterior horn (PH) in 60% of cases, and 1.000-1.500 cm at body in 30% of cases. Thickness of MM at AH (45%) and PH (40%) was 0.401–0.500 cm and at body (35%) was 0.501–0.600 cm. Width of LM at AH (35%) was 0.801–0.900 cm, at PH (45%) was 0.901–1.000 cm, and at body (35%) was 1.000–1.500 cm. Thickness of LM at AH (45%) was 0.301–0.400 cm, at PH (50%) was 0.401–0.500 cm, and at body (40%) was 0.601–0.700 cm. Length of ACL in maximum percentage of specimens (55%) was 3.01-3.50 cm. Width of ACL in 25% specimens were 0.801-0.900 cm and in another 25% specimens were 1.001-1.500 cm. Length of PCL in maximum percentage of specimens ( 50 %) was 3.51-4.00 cm. Width of PCL in 80 % of specimens was 1.001-1.500 cm. Histological examination of menisci showed fibrocartilage (outer two-thirds) and hyaline cartilage (inner one-third). Orientation of fibers was circumferential with intermingled radial fibers. Fibroblasts, chondrocytes, and unclassified cells were arranged as single, paired, or in rows along the direction of fibers except in hyalinized part. Blood vessels were present toward the peripheral part. Conclusions: The maximum width of MM was at PH and for LM it was at the body. Maximum thickness was at the body for MM as well as LM. Width of PCL was more as compared to ACL.
机译:简介:半月板和交叉韧带是膝盖的关节内结构,这些结构的损伤很常见。该研究中获得的形态测量数据将有助于分析人类之间的变异,并将其与受伤的可能性,部位和类型相关联,并在磁共振成像和关节镜检查中更好地解释结构,这将进一步有助于膝关节的重建手术。材料和方法:取二十个膝盖的内侧半月板(MM),外侧半月板(LM)的宽度和厚度以及前交叉韧带(ACL)和后交叉韧带(PCL)的最大长度和宽度。对半月板进行组织学检查。结果:45%的病例在前角(AH)处的MM宽度为0.601–0.700 cm,60%的病例在后角(PH)处的宽度为1.000–1.500 cm,在30%的情况下为1.000-1.500 cm 。在AH(45%)和PH(40%)处,MM的厚度为0.401-0.500 cm,而在人体(35%)处为0.501-0.600 cm。 AH处(35%)的LM宽度为0.801–0.900 cm,PH(45%)处的LM宽度为0.901–1.000 cm,身体(35%)处的宽度为1.000–1.500 cm。 AH处(45%)的LM厚度为0.301–0.400 cm,PH(50%)处的LM厚度为0.401–0.500 cm,身体(40%)处的厚度为0.601–0.700 cm。 ACL的最大长度(55%)占3.01-3.50厘米。 25%的样品中ACL的宽度为0.801-0.900 cm,另外25%的样品中ACL的宽度为1.001-1.500 cm。 PCL的长度以最大百分比的样品(50%)为3.51-4.00 cm。 80%的样品中PCL的宽度为1.001-1.500 cm。半月板的组织学检查显示纤维软骨(外三分之二)和透明软骨(内三分之一)。纤维的取向是径向的,径向的纤维混杂在一起。除透明质化部分外,成纤维细胞,软骨细胞和未分类细胞沿纤维方向排列成单个,成对或成排排列。血管朝向外周部分存在。结论:MM的最大宽度在PH处,而LM的最大宽度在身体处。对于MM和LM,最大厚度在机身上。与ACL相比,PCL的宽度更大。

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