ABSTRACT
It is technical demanding work to perform arthroscopic ankle arthrodesis to treat
end-stage ankle osteoarthritis with excessive talar tilt. This article aimed to provide
an effective technique tip for the treatment of Takakura stage 3b ankle osteoarthritis
with a talar tilt angle more than 15 degrees under arthroscopy. A conventional anterior
arthroscopic approach is used. After arthroscopic examination and debridement, one
pin which is parallel to the distal tibial surface is inserted into the tibial side
of the ankle, the other pin which is parallel to the talar dome surface is inserted
into the talar side of the ankle, both at the coronal plane. Then a distracter is
used in the medial side to open the interspace of the tibiotalar joint and correct
the talar tilt through the 2 pins, under which circumstance the tibiotalar joint surface
can be well prepared. Next an anti-distracter is used in the lateral side to close
the tibiotalar interspace and correct the talar tilt through the 2 pins, in which
condition 3 fully threaded cannulated lag screws can be inserted through guide pins
in a cross pattern to fix the ankle joint. We used the pin-based distracter to open
and close tibiotalar interspace, correct the talar tilt and maintain a good mechanical
axis for fusion, and the outcomes were good.
Keywords
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Article info
Publication history
Published online: November 15, 2021
Footnotes
Financial Disclosure: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Conflict of Interest: None reported.
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© 2021 by the American College of Foot and Ankle Surgeons. All rights reserved.
