Introduction: The microsurgical reconstruction of the cauda equina nerve roots (MRCER) after traumatic injury is a highly controversial procedure with very few reports in the literature.
Methods: We report on four patients who had a penetrating traumatic injury in the lumbosacral area and underwent primary MRCER at our institution during the last decade.
Results: All four patients presented complete distal sensory and motor palsy affecting the lower lumbosacral roots. Primary microsuture was feasible in three patients harboring stab wounds, whereas autologous nerve graft interposition was necessary in the patient who had a gunshot wound. At the 5-year follow-up, we observed a marked improvement in motor function in two patients, but no sensory recovery.