Osteochondral defects (OCDs) of the talus are a common cause of residual pain after ankle injuries. When conservative treatment fails, arthroscopic debridement combined with drilling/microfracturing of the lesion (bone marrow stimulation [BMS] procedures) has been shown to provide good to excellent outcomes. Not uncommonly, talar OCDs involve the borders of the talar dome. These uncontained lesions are sometimes difficult to visualize with the 30° arthroscope, with potential negative effect on the clinical outcome of an arthroscopic BMS procedure. The use of the 70° arthroscope has been described for a multitude of common knee, shoulder, elbow, and hip procedures. The purpose of this article is to show the usefulness of the 70° arthroscope in arthroscopic BMS procedures, pointing out which kinds of talar OCDs can benefit most from its use.
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