Sinus tarsi syndrome

The sinus tarsi syndrome (syn. Canalis tarsi syndrome ) is a disease of the ankle joint , which is characterized by a painful inflammatory change in the soft tissues in the area of ​​the canal or sinus tarsi .

The triggers are either severe twisting (acute supination trauma ) or constantly recurring minor twisting (recurrent microtraumas). The disease often occurs after a capsule rupture in the outer area of ​​the ankle joint with injury to the tendon of the tibialis posterior muscle . In the further course there is degeneration and scarring of the soft tissue structures in the area of ​​the tarsal canal with increasing instability of the ankle.

Clinically, the disease manifests itself as pain on the outside of the ankle and tenderness in the area of ​​the sinus tarsi. An infiltration anesthesia of the tarsal sinus can confirm the diagnosis. In addition to X-ray diagnostics, magnetic resonance tomography is particularly helpful, as it can detect inflammatory changes in the sinus tarsi. A computed tomography is only necessary to exclude other ankle disorders.

The sinus tarsi syndrome can be treated conservatively with foot exercises and supportive ultrasound therapy and injections of glucocorticoids . If this therapy is not successful within three months, surgical treatment may be indicated. In doing so, the joint is opened and bone growth is removed.

literature

• Jürgen Arnold Orthopedics and Orthopedic Surgery: Foot . Georg Thieme, Stuttgart 2002, ISBN 9783131262417 , pp. 525-526.