anterior ankle impingement syndrome
Common in soccer players and ballet dancers .
Clinical features of anterior ankle impingement syndrome include painful and limited dorsiflexion and anterior joint line swelling . Anterior impingement can occur after severe previous ankle sprain or repeated weight bearing activities with ensuing thickening of the injured ligaments, resulting in their impingement between the anterior inferior tibia and the talus.
Anterior ankle impingement is best appreciated on lateral ankle radiograph or sagittal view on CT. Some advocate to the use of oblique radiographs to assess if bony spurring is medial or lateral .
T2 fat sat or STIR sagittal images can be useful for demonstrating marrow edema, subchondral changes and synovial/soft tissue thickening.
- ankle joint osteoarthritis: loss of joint space as well as osteophytes
- anteromedial ankle impingement