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Brachioradialis Muscle Tendon Transposition in Extensor Pollicis Longus Reconstruction: Anatomical Study and a New
Francesco De Francesco1, Pierfrancesco Pugliese1, Marialuisa De Francesco2
1Azienda Ospedaliero Universitaria "Ospedali Riuniti," Ancona, Italy.
Background:
Complete extension of the thumb and activation of the extensor pollicis longus (EPL) tendon are fundamental to ensure maximum function. Many EPL repair techniques are described in the literature.
Methods:
The authors present an alternative technique using the brachioradialis (BR) tendon. Thirty patients with injuries of the EPL tendon in zone 8 were studied. In all cases, neither direct suture repair nor traditional tendon transfer was possible.
Results:
Thumb extension was restored in all patients with satisfactory extension recovery. All patients achieved excellent extension; good functional results were observed in 2 cases, and in 1 case satisfactory results were achieved using the Geldmacher assessment and the Kapandji assessment. The overall results were rated as excellent, good, fair, or poor according to the Quick Disabilities of the Arm, Shoulder, and Hand Scale.
Discussion:
The BR tendon was suitable to treat all cases, in particular injuries occurring near Lister's tubercle, due to its appropriate length for tenorrhaphy albeit with a short distal head.
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