Review ArticlesPostoperative Rehabilitation of Posterior Cruciate Ligament Surgery: A Systematic ReviewSimhal, Rishabh K. BS*; Bovich, Miriam DPT, SCS†; Bahrun, Ehab A. BS*; Dreese, James C. MD† Author Information *Georgetown University School of Medicine, Washington, DC †Medstar Health, Timonium, MD Disclosure: The authors declare no conflict of interest. Reprints: James C. Dreese, MD, Medstar Health, 2118 Greenspring Drive, 2nd Floor, Timonium, MD 21093. Sports Medicine and Arthroscopy Review: June 2021 - Volume 29 - Issue 2 - p 81-87 doi: 10.1097/JSA.0000000000000307 Buy SDC Metrics Abstract Posterior cruciate ligament (PCL) injuries can be debilitating knee injuries, having involvement in up to 44% of traumatic knee injuries. However, isolated PCL injuries are relatively infrequent. Therefore, effective evidence-based rehabilitation protocols have proven to be elusive. This systematic review aims to summarize the latest evidence on postoperative rehabilitation protocols for patients undergoing PCL reconstruction. Studies included in this paper included those published from 1991 to 2019 with a grade 1 to 5 level of evidence discussing the postoperative PCL rehabilitation. A multidatabase search using largely PubMed and Ovid was conducted using relevant keywords such as “PCL,” “postoperative,” and “rehabilitation,” initially leading to 955 papers, which were narrowed by relevance to 12 final published studies used in the analysis. Through careful review of the evidence, crucial principles of rehabilitation, such as an initial focus on protecting the graft during strengthening, as well as an optimized PCL reconstruction protocol are presented here. Rehabilitation following PCL reconstruction continues to be limited by a lack of high-quality evidence-based publications. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.