Kirschner wire migration causing spinal cord injury one year after internal fixation of a clavicle fracture
Published online: Jun 27 2007
Patrick Fransen, Sylvie Bourgeois, Jacques Rommens
From the Clinique du Parc Léopold, Brussels, Belgium and the Hôpital de Braine l'Alleud-Waterloo, Braine L'Alleud, Belgium
Abstract
K-wire migration after internal fixation of the clavicle has rarely been reported to cause spinal cord injuries.
A 30-year-old man presented with progressive paraparesis, hypaesthesia under a Th4 level and electric pain in the neck and arms. CT of the spine revealed a migrated K-wire from a one-year-old clavicle osteosynthesis, penetrating the spinal canal through the Th2 nerve root foramen, and perforating the spinal cord with a transversal trajectory.
Surgical removal of the K-wire was performed after exposing both ends. Laminectomy allowed visual control of the entry point and correction of cerebrospinal fluid leakage. The pain disappeared and the patient recovered a normal gait after 6 weeks.
The use of two incisions is advocated in such cases : one lateral to allow wire removal, and one medial for dural repair and early intradural bleeding control. Regular follow ups, K-wire removal after fracture healing as well as bending the wire end in a walking stick shape should minimise the risk of migration