Commonly used orbital decompressions are lateral wall, antral-ethmoidal, "three-wall," and "four-wall" decompressions. Bladders filled with saline were placed in intact bony orbits before and after decompression for comparison of compliance curves by these four methods. The lateral wall decompressions produced the least volume change, while the four-wall produced the most. The three-wall decompression provided next best pressure reduction.
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McCord et al. (1985) studied this question.