Anterior Impingement

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Anterior Impingement

Impingement syndrome of anterior ankle. Could be due to:
1) Anterior ankle osteophyte
2) Thickened synovium from previous ankle sprain (may progress to osteophyte)
3) End range of dorsiflexion activity (eg ballet dancing)  may lead to osteophytes

Clinical features:
Aching over anterior joint line – usually lateral; restricted dorsiflexion; anterior ankle is tender to palpation; may be able to palpate osteophytes; pain at end range of dorsiflexion.
Lateral weightbearing in dorsiflexion x-ray will show impingement

Treatment:
Activity modification; heel raise; surgical removal of osteophyte and/or irritated synovium (usually with arthroscope).

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