- Radiographic Findings:
-
ankle frx:
- fibula overlaps posterior aspect of tibia, but posterior tubercle
of tibia can still be seen;
- posterior subluxation of talus in
mortise may be assoc w/
posterior lip frx or
posterior talofibular ligament tear;
- stress lateral view:
- correlates well w/ anatomic diastasis;
- is more sensitive than mortise view in determining syndesmotic injury;
- w/ a 7 mm anatomic diastatis, lateral malleolus may posteriorly displace 4-5 mm,
where as the Mortise view shows only 1-2 mm of displacement;
-
ref:
-
The tibiofibular syndesmosis. Evaluation of the ligamentous structures,
methods of fixation, and radiographic assessment.
-
talus
-
talar neck frx:
-
lateral talar process frx
-
os trigonum:
- is relatively frequently seen accessory bone of foot found
just posterior to lateral tubercle of posterior process;
-
anterior impingment syndrome:
-
anterior widening:
- dome of talus is centered under the tibia and congruous w/ distal
tibial articular surface;
- asymmetry of articular space, esp anterior widening, suggests instability;
