This article reviews complications associated with nonoperative and operati
ve treatment of knee dislocations. Dislocation of the knee is rare; however
, it is being recognized with increasing frequency and is a focus of recent
research and debate. Although occurrence rates seem low (0.001%-0.013%) ma
ny knee dislocations spontaneously reduce, or are reduced in the field, and
therefore go undetected. In addition, patients who have sustained multiple
trauma may have knee dislocations that are not recognized because at admis
sion the focus of attention is on the more obvious and life-threatening inj
uries. The true incidence of knee dislocation, therefore, is probably much
higher than reported.