Reconstruction of flexor pollicis longus tendon with palmaris longus interposition graft: results in 14 patients


thumb; flexor pollicis longus; reconstruction; repair; palmaris longus; interposition

Published online: Feb 17 2023

Tine Peters, Pieter Caekebeke, Joris Duerinckx

From the Department of Orthopaedic Surgery and Traumatology, Ziekenhuis Oost-Limburg, Genk, Belgium


The flexor pollicis longus tendon is prone to attritive rupture and retraction. Direct repair is often not possible. Interposition grafting is a treatment option to restore tendon continuity, although the surgical technique and postoperative results have not been well defined. We report our experience with this procedure. 14 patients were prospectively followed for a minimum of 10 months after surgery. There was one postoperative failure of the tendon reconstruction. Postoperative strength was comparable to the contralateral side, but thumb range of motion was significantly reduced. In general, patients reported excellent postoperative hand function. This procedure seems a viable treatment option with lower donor site morbidity than tendon transfer surgery.