• BACKGROUND
    • The flexor hallucis longus (FHL) is a known site of pathological conditions. FHL stenosing tenosynovitis presents as posterior medial ankle pain or great toe discomfort and is often associated with a catching sensation of the great toe. There are a wide variety of open procedures for the treatment of FHL stenosing tenosynovitis.
  • OBJECTIVE
    • Arthroscopic treatment may circumvent some of the complications associated with open surgical treatment of the hindfoot.
  • METHODS
    • Arthroscopic surgery was completed in the supine position using modified posteromedial and posterolateral portals. A 70 degrees arthroscope allowed for circumferential evaluation of the ankle through the posterolateral portal including the subtalar areas and the entire FHL tendon for release using basket forceps and a 3.5mm shaver.
  • RESULTS
    • This method allows for decompression of the FHL from the entrance of the fibro-osseous tunnel to the knot of Henry. Active and passive range of motion of both the ankle and toes was encouraged postoperatively. The patient returned to sporting activity 6 weeks after surgery.
  • CONCLUSIONS
    • Endoscopic treatment of the FHL stenosing tenosynovitis is presented as an alternative to an open surgical procedure; it may reduce wound complications and may allow for an earlier return to sport.