First plantar tarsometatarsal ligament
Primum ligamentum tarsometatarseum plantare
Definition
The first plantar ligament (C1-M1) is a longitudinal and rectangular ligament, arising from the plantar aspect of C1, near the articular surface, extending slightly outward and distally to the lateral portion of M1.
References
Castro M, Melão L, Canella C, Weber M, Negrão P, Trudell D, Resnick D. Lisfranc joint ligamentous complex: MRI with anatomic correlation in cadavers. AJR Am J Roentgenol. 2010 Dec;195(6):W447-55. doi: 10.2214/AJR.10.4674. PMID: 21098178