Brief ReportRehabilitation After Complete Hemisensory Loss Report of Two CasesKaner, Mahmut T. MD; Hon, Emily BS; He, Tammy PT, DPT; Patira, Riddhi MD; Altschuler, Eric L. MD, PhDAuthor Information From the Department of Physical Medicine and Rehabilitation, Metropolitan Hospital, New York, New York (MTK, TH, ELA); New York Medical College, Valhalla, New York (EH); and Department of Neurology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (RP). All correspondence should be addressed to: Eric L. Altschuler, MD, PhD, Metropolitan Hospital, 1901 First Ave, New York, NY 10029. This study was approved by the Brany and Metropolitan IRBs and both subjects gave written consent for use of the videos. Mahmut T. Kaner and Emily Hon are in training. Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal’s Web site (www.ajpmr.com). Online date: August 30, 2019 American Journal of Physical Medicine & Rehabilitation: January 2020 - Volume 99 - Issue 1 - p 86–90 doi: 10.1097/PHM.0000000000001306 Buy SDC Metrics Abstract The role and function that proprioception plays in movement and motor learning have been debated since the 19th century but can be difficult to isolate and study. Lesions at various points along the proprioceptive pathway result in afferent paresis that can be significantly disabling. Compensatory mechanisms can help with successful rehabilitation and provide an opportunity to study the role of these mechanisms in sensory feedback. Here, we present two cases of adult patients with complete hemisensory loss after a stroke: one patient with a cortical stroke and the other one with a thalamic stroke. First, we see that that motor learning can occur without proprioception, with the help of visual feedback. Second, proprioception plays an important role in movement: in the upper limb, it can facilitate individual finger movements, and in the lower limb, it maintains sufficient knee flexion to prevent the knee from going into recurvatum (backward bending) during ambulation. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.