| Objective:The purpose of this study is to observe the appearance of the anterolateral ligament of the knee in China and the characteristics of the femur,tibia and lateral meniscus attachment.The histological staining shows that the structure is ligamentous tissue and finally provides anatomy for reconstruction learning base.Methods: The 10 cases of knee joint specimens including 9 cases of formalin fixed,1 cases of fresh specimens(both from the Qingdao University School of medicine,Department of Anatomy)from 10 cadavers(5 males,5 female),aged 65 ~75 years old,the average age of 68.6 years.Dissect and observe the morphology and shape of the anterolateral ligament,meniscus and femur tibia anatomical features of the attachment point.We measured the femoral attachment of the anterolateral ligament of the knee as a starting point,and the point at which the tibia attachment was fixed.The length of the starting and ending points is the length of the anterior lateral ligament.The specimens of 5 cases of knee joint were taken for histological examination.Results:1.ALL and its anatomical characteristicsIn 10 cases of knee joint,9(90%)cases were found ALL.ALL originated in the lateral femoral condyle,LCL femoral attachment points of the same or the distal partial front,rear and front ALL fiber LCL fiber was closely connected to each other in the fusion state,femoral attachment point fanned out even in the bone.ALL bifurcation in the body after the formation of the two ends respectively and the lateral tibial meniscus,the tibial attachment at the anterior lateral tibial plateau Gerdy tubercle and fibular head above the tibial cartilage after the midpoint of line,and fanned out even in the bone,meniscus side attachment point is positioned between the outer edge of the lateral meniscus anterior horn and the body.2.ALL measurement resultsThe length of ALL(38.89±4.67)mm;width measurement is divided into three,respectively,the femur(8.49±1.36)mm,the joint line(1.33±0.38)mm and tibia(8.15±1.38)mm;thickness(joint line)(1.33±0.38)mm;ALL tibia attachment point from the edge of tibia cartilage(5.76±0.57)mm,the distance Gerdy tubercle(22.59±3.04)mm,fibular head distance(21.15±2.78)mm.3.Histological staining of ALLHE staining can be found that ALL is a dense connective tissue composed of a large number of parallel arrangement of collagen fibers and elastic fibers in small amounts;S-100 staining revealed that Type I mechanical receptors and Type IV pain receptors existed in the sparse connective tissue covering the ligament and the surface.Conclusion:1.Through dissection we found that ALL is an independent joint capsule ligament originates from the lateral femoral condyle LCL distal femoral attachment and partial before or LCL the same starting point,the body divides into two points,respectively,at the midpoint of the lateral tibia plateau GT and FH,the line below the tibia cartilage line(5.76±0.57)mm and the anterior horn of the lateral meniscus.2.We found that the prevalence of ALL in Chinese adults was 90%(9/10).3.Histological staining confirmed that ALL was a ligament.4.The length of ALL(38.89±4.67)mm;width measurement is divided into three,respectively,the femur(8.49±1.36)mm,the joint line(1.33±0.38)mm and tibia(8.15±1.38)mm;thickness(joint line)(1.33±0.38)mm;ALL tibia attachment point from the edge of tibia cartilage(5.76±0.57)mm,the distance Gerdy tubercle(22.59±3.04)mm,fibular head distance(21.15±2.78)mm,the tibia attachment point to GT was almost the same as that of FH... |
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