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Birth injury: a possible contributory factor in the aetiology of primary basilar impression
  1. Robert De Battersby,
  2. Bernard Williams
  1. Midland Centre for Neurosurgery and Neurology, Smethwick, West Midlands, UK


    Adult patients with primary basilar impression were four times more likely to have a history of birth injury than a control group. Distortion of basicranial synchondroses during birth is suggested as a possible mechanism and, in association with hindbrain herniation and arachnoid adhesions, may contribute towards the development of syringomyelia.

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