Helito Camilo Partezani, Bonadio Marcelo Batista, Soares Thiago Queiroz, da Mota e Albuquerque Roberto Freire, Natalino Renato José Mendonça, Pécora José Ricardo, Camanho Gilberto Luis, Demange Marco Kawamura
Knee Surgery Division, Department of Orthopaedics and Traumatology, Institute of Orthopedics and Traumatology, Hospital and Clinics, Faculty of Medicine, University of São Paulo (IOT-HCFMUSP), Rua Dr. Ovídio Pires de Campos, 333, Cerqueira Cesar, São Paulo, SP, CEP: 05403-010, Brazil.
Department of Orthopaedics and Traumatology, Institute of Orthopedics and Traumatology, Hospital and Clinics, Faculty of Medicine, University of São Paulo (IOT-HCFMUSP), São Paulo, Brazil.
Surg Radiol Anat. 2016 Mar;38(2):223-8. doi: 10.1007/s00276-015-1533-5. Epub 2015 Aug 6.
The aim of this study is to characterize in detail the meniscal insertion of the anterolateral ligament (ALL) of the knee, establishing parameters regarding the circumference of the lateral meniscus and the popliteal muscle tendon (PMT) groove in addition to its histological analysis.
A total of 33 knees of cadavers were dissected. The ALL and the lateral meniscus were removed en bloc. After removal of the anatomical specimen, the meniscus circumference, the ALL insertion points on the external surface of the lateral meniscus, and the PMT groove were measured. Eight menisci were subjected to histological analysis.
The ALL was found in all dissections performed. The ALL insertion occurred macroscopically in the transition between the anterior horn and the lateral meniscus body, specifically beginning at 36.0% and ending at 41.9% of the meniscal circumference, occupying a mean area of 5.6 mm. The distance between the end of the ALL meniscal insertion and the beginning of the PMT groove averaged 12.9 mm. In the histological evaluation, in longitudinal sections, we observed dense collagen fibers of the ligament inserting on the external surface of the meniscus. It is possible to observe a spreading of collagen fibers at the moment of meniscal insertion.
The ALL meniscal insertion was found in all dissected specimens, beginning with approximately 36% of the meniscal outer diameter, 12.9 mm anterior to the beginning of the PMT groove. The histological analysis confirmed the presence of true ligamentous tissue in the dissected specimens.
本研究旨在详细描述膝关节前外侧韧带（ALL）在半月板的附着情况，除了对其进行组织学分析外，还需确定有关外侧半月板周长和腘肌肌腱（PMT）沟的参数。
共解剖了33具尸体的膝关节。将ALL和外侧半月板整体切除。切除解剖标本后，测量半月板周长、ALL在外侧半月板外表面的附着点以及PMT沟。对8个半月板进行组织学分析。
在所有进行的解剖中均发现了ALL。ALL的附着在宏观上发生在前角与外侧半月板体的过渡处，具体从半月板周长的36.0%开始，至41.9%结束，平均占据面积为5.6毫米。ALL半月板附着末端与PMT沟起始处之间的距离平均为12.9毫米。在组织学评估中，在纵切面上，我们观察到韧带的致密胶原纤维附着在半月板外表面。在半月板附着时可以观察到胶原纤维的扩散。
在所有解剖标本中均发现了ALL的半月板附着，起始于半月板外径的约36%处，在PMT沟起始处前方12.9毫米处。组织学分析证实了解剖标本中存在真正的韧带组织。
