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Lesional volume measurements (shown as the mean and standard deviation) demonstrated significantly increased (p < 0.05) cavitation size at four weeks in both the contusion-only and the durotomy-only groups relative to the size in the animals that had received a dural allograft following decompression. At two weeks, the animals that had received a durotomy alone showed significantly increased (p < 0.05) cavitation size relative to that in the other treatment groups.
