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Minimally invasive resection of a prominent transverse process in neurogenic thoracic outlet syndrome: new application for a primarily spinal approach. Illustrative case

Marc Hohenhaus, Johann Lambeck, Nico Kremers, Jürgen Beck, Christoph Scholz, and Ulrich Hubbe

BACKGROUND

The optimal surgical approach to treat neurogenic thoracic outlet syndrome (nTOS) depends on the individual patient’s anatomy as well as the surgeon’s experience. The authors present a minimally invasive posterior approach for the resection of a prominent transverse process to reduce local muscular trauma.

OBSERVATIONS

A 19-year-old female presented with painful sensations in the right arm and severe fine-motor skill dysfunction in the right hand, each of which had been present for several years. Further examination confirmed affected C8 and T1 areas, and imaging showed an elongated C7 transverse process displacing the lower trunk of the brachial plexus. Decompression of the plexus structures by resection of the C7 transverse process was indicated, owing to persistent neurological effects. Surgery was performed using a minimally invasive posterior approach in which the nuchal soft tissue was bluntly dissected by dilatators and resection of the transverse process was done microscopically through a tubular retractor. The postoperative course showed a sufficient reduction of pain and paresthesia.

LESSONS

The authors describe a minimally invasive posterior approach for the treatment of nTOS with the aim of providing indirect relief of strain on brachial plexus structures. The advantages of this technique include a small skin incision and minor soft tissue damage.