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“Intersection syndrome” of the foot: treated by endoscopic release of master knot of Henry

Abstract

Intersection syndrome of the forearm is a painful condition in the area where the muscle bellies of the abductor pollicis longus and extensor pollicis brevis cross the common wrist extensors. A similar case of the foot with marked fibrosis at the interconnection of flexor hallucis longus and flexor digitorum tendons is reported and the fibrous interconnection was extended proximally. This was successfully treated with endoscopic release of the master knot of Henry.

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Author information

Correspondence to T. H. Lui.

Electronic supplementary material

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Video 1 The patient can move his left big toe freely with the little toe hold still (AVI 6739 kb)

Video 2 The patient had difficulty in initiating his right big toe motion while his little toe was hold still (AVI 14470 kb)

Video 1 The patient can move his left big toe freely with the little toe hold still (AVI 6739 kb)

Video 2 The patient had difficulty in initiating his right big toe motion while his little toe was hold still (AVI 14470 kb)

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Lui, T.H., Chow, F.Y.H. “Intersection syndrome” of the foot: treated by endoscopic release of master knot of Henry. Knee Surg Sports Traumatol Arthrosc 19, 850–852 (2011) doi:10.1007/s00167-010-1394-8

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Keywords

  • Master knot of Henry
  • Flexor digitorum longus
  • Flexor hallucis longus
  • Tendoscopy
  • Intersection
  • Arthroscopy