Adaptations of Patients With Isolated Deficiency of the Posterior Cruciate Ligament

The majority of the current PCL research has focused on the basic science of PCL biomechanics and PCL recon-struction. These studies have improved our understanding of the function of the PCL in the laboratory setting, delin-eating the role of this ligament as a static posterior stabi-lizer of the knee. However, very little work has been done on the in vivo adaptations of the patient with PCL injury during ambulatory conditions. The relative lack of infor-mation has contributed to inconsistent clinical manage-ment and variable outcomes in the treatment of knee injuries involving the PCL.9,20,29,30,44 The reported incidence of PCL injuries in the general population varies between 3 % and 23 % for knee joint injuries,6,9,20,28 although it has been reported that up t