Entrapment of the flexor hallucis longus tendon following ankle arthrodesis

• Published in: Foot (Edinburgh, Scotland) Vol. 26; pp. 45 - 47
• Main Authors: Keith, Troy, Robinson, Andrew H.N
• Format: Journal Article
• Language: English
• Published: Scotland Elsevier Ltd 01.03.2016
• Subjects: Aged; Ankle arthroscopy; Ankle Injuries - surgery; Ankle Joint - diagnostic imaging; Ankle Joint - surgery; Arthrodesis - adverse effects; Arthroscopic ankle arthrodesis; Arthroscopy - methods; Flexor hallucis longus; Follow-Up Studies; Humans; Male; Orthopedics; Os trigonum; Postoperative Complications; Reoperation; Tendon Entrapment - diagnosis; Tendon Entrapment - etiology; Tendon Entrapment - surgery; Tomography, X-Ray Computed; computed tomography; CT; Flexor Hallucis Longus; Os trigonum; Arthroscopic ankle arthrodesis; Ankle arthroscopy; FHL; PAIS; Posterior ankle impingement syndrome; Flexor hallucis longus
• ISSN: 0958-2592; 1532-2963
• DOI: 10.1016/j.foot.2016.01.001

Highlights • Brief Summary • What Is Already Known. • Posterior ankle impingement syndrome (PAIS), although a recognised diagnosis in the mobile ankle, is not typically considered as a pain generator in the fused ankle. • Arthroscopic ankle fusion is a recognised technique with low complication rates. • Important technical considerations while performing an arthroscopic ankle fusion include the tendency for the talus to translate anteriorly, this can to some degree be overcome with posteromedial tibial screw entry point to seat the talus back under the tibia. • What This Study Adds • We document the first reported case of FHL posterior impingement following arthroscopic ankle arthrodesis. • We propose it is a easily treatable condition accessible via an endoscopic approach. • Posterior impingement should not be excluded from the list of pain differentials in the fused ankle joint.