Pseudotendon formation after flexor tendon injury.

The biologic reconstitution of a divided flexor tendon by scar tissue forming a "pseudotendon" is described in three cases. With close inspection, one is able to differentiate a pseudotendon from a normal tendon intraoperatively by its relatively light gray color and the lack of a glistening surface. A pseudotendon lacks the tensile strength of a normal tendon and should be replaced by tendon grafting or transfer if function is to be restored.