Dislocation of the ankle without fracture is very uncommon. There are only few reports
in the international literature. Up to now approximately 80 cases are published. The
risk of hyperflexion and -inversion of the ankle seems high on a trampoline. A multiple
of the jumperʼs body-weight projects delayed on the upper ankle joint while dipping
in the trampoline-sheet. Reduction should be performed as fast as possible to ensure
a good clinical outcome. Imaging via MRI and CT scan allows a detailed evaluation
of the injury severity. The decision for further treatment should be based on the
findings in the MRI and CT scans. Reconstructing the medial and lateral capsular ligaments
can be necessary. With a consequent treatment algorithm a good functional outcome
can be achieved. In our case we documented a post-traumatic AOFAS score of 87/100
six months after the injury without an instability of the upper or lower ankle joint.
Propioreceptive reflex and pronator training as well as taping seem to be useful before
and during trampoline sports.
Key words
ankle dislocation without fracture - open ankle dislocation - trampoline - treatment
algorithm
