<prompt> A most common complication of CollesMalunionAvascular necrosisFinger stiffnessRupture of EPL tendon  <response>: The complication rate is 55, with the most common complication being some degree of the residual finger and wrist stiffness 39.A most common complication of Colles fracture Finger stiffness.2nd most common complication of Colles fracture Malunion. 