TY - CHAP M1 - Book, Section TI - Leg A1 - Segura, Adriana A1 - Chiampas, George A2 - Sherman, Scott C. PY - 2014 T2 - Simon’s Emergency Orthopedics, 7e AB - The tibia is the only weight-bearing bone in the leg. The fibula is bound to the tibia by the interosseous membrane, which divides into a “Y” both proximally and distally. The proximal arm of the “Y” is composed of the anterosuperior tibiofibular ligament and the posterosuperior tibiofibular ligament. A similar division occurs distally with an anteroinferior and posteroinferior tibiofibular ligament. The upper portion of the fibula is of little importance and can be excised with little consequence. The lower portion cannot, because of its importance in forming the ankle mortise. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1103540375 ER -