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Updated: Jun 24, 2025

A Mouse Model of Ankle-Subtalar Complex Joint Instability
Published on: October 28, 2022
A previously unknown variant of the calcaneofibular ligament
Kacper Ruzik1,2, Anna Czech1, Marek Drobniewski2
1Department of Anatomical Dissection and Donation, Medical University of Lodz, Łódź, Poland.
None:
The lateral ankle joint is composed of 3 ligaments: the anterior talofibular ligament (ATFL), the posterior talofibular ligament (PTFL) and the calcaneofibular ligament (CFL). The ATFL and CFL demonstrate morphological variation, especially regarding their shape and number of bands. During standard anatomical dissection, an unusual type of triple CFL was observed: the CFL was composed of 2 bands originating on the lateral malleolus, and the presence of a lateral talocalcaneal ligament (LTC) originating on the talus bone. The insertion point of each band was located on the calcaneal bone. An understanding of these anatomical patterns allows a clearer view of ankle joint biomechanics, and improved planning and performance of surgical treatment.
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