Abstract

One of the most important unsolved problems in micro­ vascular surgery is the rigor or contraction of the wall of small vessels. In ischemia, the smooth muscles seem to develop a condition of contracture comparable with rigor mortis. This rigor can be observed especially after toe transfers and re­ plantation of fingers after crush injuries; it is characterized by a contracture of small arteries and veins that cannot be neutralized with drugs. Disturbing circulation, this rigor may lead to tissue damage and necrosis.

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