Camilo Partezani Helito1, Marcelo Batista Bonadio2, Thiago Queiroz Soares3, Roberto Freire da Mota e Albuquerque2, Renato José Mendonça Natalino4, José Ricardo Pécora2, Gilberto Luis Camanho2, Marco Kawamura Demange2. 1. 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. camilo_helito@yahoo.com.br. 2. 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. 3. 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. 4. Pathological Anatomy Division, 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.
Abstract
PURPOSE: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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.
PURPOSE: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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.
Authors: Guillaume D Dumont; Grant D Hogue; Jeffrey R Padalecki; Ngozi Okoro; Philip L Wilson Journal: Am J Sports Med Date: 2012-06-22 Impact factor: 6.202
Authors: K V N Dhananjaya; B V Murlimanju; Vinaya Poornima; Sonali Ullal; Prasanna Mitra; K V N Dinesh; Vasudha V Saralaya; Latha V Prabhu; K U Prashanth Journal: Biomed J Date: 2014 Jan-Feb Impact factor: 4.910
Authors: Camilo Partezani Helito; Carlos do Amaral; Yuri da Cunha Nakamichi; Riccardo Gomes Gobbi; Marcelo Batista Bonadio; Renato José Mendonça Natalino; José Ricardo Pécora; Tulio Pereira Cardoso; Gilberto Luis Camanho; Marco Kawamura Demange Journal: Orthop J Sports Med Date: 2016-12-22
Authors: Matt Daggett; Camilo Helito; Matthew Cullen; Andrew Ockuly; Kyle Busch; Joseph Granite; Barth Wright; Bertrand Sonnery-Cottet Journal: Orthop J Sports Med Date: 2017-02-22
Authors: Camilo Partezani Helito; Paulo Victor Partezani Helito; Marcelo Batista Bonadio; José Ricardo Pécora; Marcelo Bordalo-Rodrigues; Gilberto Luis Camanho; Marco Kawamura Demange Journal: Orthop J Sports Med Date: 2015-12-16