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Atlanto-Axial Subluxation: A Newly Reported Trampolining Injury

Starting with Zimmerman in 1956,1 multiple trampolineassociated injuries have been reported in the pediatric literature. Most of these injuries involve extremity sprains and fractures, but spinal injuries have also been reported.1-4 Although the majority of spinal injuries are minor, there have been injuries resulting in paralysis and even death.1-4 Trampolining injuries have typically been obvious and associated with falls off of the trampoline or deformity upon landing. Many parents now have a sense of security in using trampolines with safety nets. To our knowledge, atlanto-axial subluxation caused from trampoline use has not been described. We report a series of 2 patients admitted to Madigan Army Medical Center in July 2004 with torticollis that was secondary to atlantoaxial subluxation caused by trampoline use. In both cases, the severity of the trampolining injury initially went unrecognized.