OMICS International https://www.omicsonline.org/ OMICS International is a scientific organization that drives the progress of research through open access journals and organizes international conferences, The best in science news, commentary, and research. https://www.omicsonline.org/ArchiveJPAR/currentissue-pain-relief-open-access.php Journal of Pain & Relief https://www.omicsonline.org/ArchiveJPAR/currentissue-pain-relief-open-access.php Journal of Pain & Relief Volume 7, Issue 4 https://www.omicsonline.org/open-access/neuralgic-and-nociceptive-pain-in-the-knee-as-a-cause-of-the-treatment-failure-after-cartilage-repair-surgery-two-case-reports-2167-0846-1000325-102366.html Neuralgic and Nociceptive Pain in the Knee as a Cause of the Treatment Failure after Cartilage Repair Surgery Two Case Reports Nenad Andjelkov, Hasan Riyadh and Per Wretenberg