[[Spinal cord concussion]] is a variant of [[mild spinal cord injury]], clinically designated as transient [[paraplegia]] or [[neurapraxia]], and characterized by variable degrees of sensory impairment and motor [[weakness]] that typically resolve within 24–72 hours without permanent deficits ((Del Bigio MR, Johnson GE. Clinical presentation of spinal cord concussion. Spine (Phila Pa 1976). 1989 Jan;14(1):37-40. PubMed PMID: 2913666. )) ((Zwimpfer TJ, Bernstein M. Spinal cord concussion. J Neurosurg. 1990 Jun;72(6):894-900. PubMed PMID: 2338574. )) ((Torg JS, Corcoran TA, Thibault LE, Pavlov H, Sennett BJ, Naranja RJ Jr, Priano S. Cervical cord neurapraxia: classification, pathomechanics, morbidity, and management guidelines. J Neurosurg. 1997 Dec;87(6):843-50. PubMed PMID: 9384393. )).