Aching knees could be brought on by damage to knee cartilage, ligaments, tendons, or other muscle mass tissues. The commonest reason behind achy knee pain include a meniscal injury, patellofemoral pain syndrome, or runner's knee. Read more To learn more on causes and treatment solutions. Hip pinning (inner fixation): Hip https://www.theorthopaedicandpainpractice.com/what-are-proximal-femur-fractures/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB