THE CONTUSION INDEX: A REAPPRAISAL IN HUMAN AND EXPERIMENTAL NON‐MISSILE HEAD INJURY

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Abstract
Adams J. H., Doyle D., Graham D. I., Lawrence A. E., McLellan D. R., Gennarelli T. A., Pastuszko M. & Sakamoto T. (1985) Neuropathology and Applied Neurobiology 11, 299–308 The contusion index: a reappraisal in human and experimental non‐missile head injury A previously described method of quantifying cerebral contusions in man (the contusion index) caused by non‐missile head injury has been modified and applied to a larger series of cases, and used to assess contusions in experimental head injuries. The initial findings in man have been confirmed, viz. that contusions are most severe in the frontal and temporal lobes; that contusions may be entirely absent in a patient dying as a result of a head injury; that there is no correlation between the severity of contusions and the nature of the injury; that the concept of contrecoup must continue to be questioned; that contusions are more severe in patients who have a fracture of the skull in comparison to those who do not; that contusions are more severe in patients who do not experience a lucid interval than in those who do; and that contusions are less severe in patients with diffuse axonal injury than in those who do not have diffuse axonal injury. The distribution of contusions in subhuman primates is similar to that seen in man, and they occur more frequently with short duration than with long duration acceleration.