Loss of Flexor Pollicis Longus Function after Plating of the Radius

Six cases of loss of flexor pollicis longus function after plating of a radius fracture are presented. The exact aetiology of the postoperative deficit is uncertain, but is probably a traction neuropraxia of the anterior interosseous nerve branches to the flexor pollicis longus. All six patients had full recovery within 5 months. An initial conservative approach is recommended if this complication is encountered.