Cervical myelopathy and transient tetraplegia during free-fall parachuting: a case report

A case of cervical myelopathy in a 24-year-old man is presented. The myelopathy, attributed to free-fall parachuting, presented both as an unusual manifestation of Lhermitte's sign and as a potentially fatal, transient tetraplegia. An explanation by prolapsed intervertebral disc and post-traumatic demyelination is proposed.