Tibioastragalus anticus of Gruber muscle
Citation, DOI, disclosures and article data
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- origin: lateral tibial surface and the interosseous membrane of the distal third of the lower leg
- insertion: anterior superolateral neck of the talus
The tibioastragalus anticus of Gruber originates from the lower third of the tibia and deep to the tibialis anterior tendon and courses posteriorly to the extensor digitorum and extensor hallucis longus tendons at the level of the inferior extensor retinaculum from medial to lateral. It inserts in a fan-like fashion onto the neck of the talus 1,2.
History and etymology
The tibioastragalus anticus of Gruber muscle was first described by the Russian anatomist Wenzel Gruber in 1871 after cadaveric dissection of three cases. The muscle was again described later in 1927 by the American anatomist Henry K Seelaus 2-5.
The tibioastragalus anticus of Gruber muscle might be mistaken for a pathological condition or might potentially serve as a harvest site for a tendon graft 1,2.