Velasco BT, et al. - Considering the well-established literature illustrating a higher level of a concomitant syndesmotic and deltoid ligament injury in correlation with fractures above the syndesmosis, researchers examined if increased fracture obliquity, length and height of Weber B fibula fractures similarly correlates with increased mortise instability. They analyzed data of 51 patients with isolated Weber B fibula fractures who underwent gravity stress radiography. A mean medial clear space of 3.12 ± 0.65 mm (range, 1.5 mm to 4.0 mm) was reported in the group of 39 patients with stable ankles while a mean medial clear space of 6.29 ± 3.11 mm (range, 4.1 mm to 14.0 mm) was reported in the group of 12 patients with unstable ankles. Outcomes revealed no correlation of increased fracture obliquity, length, and height of Weber B fibula fractures with a higher incidence of mortise instability.