<prompt> Nerve commonly injured in classical radical neck neck dissection is?Long thoracic nerveThoracodorsal nerveDorsal scapular nerveAccessory Nerve  <response>: The main disability that follows the Classical Radical Neck Dissection is weakness and drooping of the shoulder due to paralysis of the trapezius muscle as a consequence of excision of the accessory Nerve. Reference : Bailey Love, 27th Edition, page no 758. 