Six out of ten patients with sinus tarsi syndrome returned to pre-injury type of sport after subtalar arthroscopy

Arthroscopic Management of Sinus Tarsi Syndrome

Sinus tarsi syndrome (STS) is a clinical entity characterized by pain of the lateral hindfoot and a sense of instability especially on uneven surfaces due to chronic inflammation characterized by fibrotic tissue remnants and synovitis of the sinus tarsi, associated with both traumatic and nontraumatic causes. Arthroscopic debridement of the subtalar joint is an effective and safe alternative in the treatment of STS refractory to conservative treatment. The purpose of this Technical Note is to report the details of arthroscopic management of STS.

Sinus tarsi and sinus tarsi syndrome: An imaging review

The sinus tarsi is a funnel-shaped region at the junction of mid-foot and hind-foot which contains fat, vessels, nerves and ligaments. The ligaments help stabilise the subtalar joint and maintain the longitudinal arch of the foot. The nerve endings contain proprioceptive fibres indicating a role for the sinus tarsi in movement of the foot. Sinus tarsi syndrome is a clinical entity characterised by lateral hind-foot pain with worsening on palpation and weight-bearing, and perceived instability. It is associated with both traumatic and non-traumatic causes. Magnetic resonance imaging is the imaging modality of choice for assessment of the sinus tarsi and sinus tarsi syndrome. In this review article, we review the anatomy and various aetiologies of sinus tarsi syndrome, along with the imaging appearances.

Lateral endoscopy of the sinus tarsi: Anatomy, technique and current indications

Numerous pathologies are reported in the lateral mid- and hind-foot. Access to the sinus tarsi is difficult, making lateral endoscopy the preferred approach. The present technical note describes the anatomy, technique and current indications for lateral endoscopy of the sinus tarsi.