PURPOSE: To determine incidence of posterior-tibial-slope (PTS) distribution in patients with isolated posterior-cruciate-ligament (PCL) tear, as-well-as the effect of PTS on radiological, clinical, and functional outcomes after PCL-reconstruction (PCL-R). METHODS: 63 patients with symptomatic isolated PCL-tears who underwent PCL-R were divided into two groups based on a PTS-angle with a cut-off value of 7 RESULTS: PTS of less than ≤7 CONCLUSION: Lesser preoperative PTS angle (≤7