Trapezius muscle palsy

The trapezium muscle is innervated by the spinal accessory nerve; this muscle is an important motor of the scapulothoracic joint as it makes it possible to lift the top of the shoulder.

Paralysis can result from a neck tumour but also from cervical ganglia cleaning surgery.

In recent types, exploration-release can be considered.In older types, paralysis can only be compensated through rehabilitation.