Biologics is a 'catch-all' term for regenerative interventions that rely on the body's ability to repair and restore tissues, rather than using manufactured products like metal or plastic.
How should we evaluate outcomes for use of biologics in the knee? LaPrade CM, James EW, LaPrade RF and Engebretsen L. J Knee Surg. 2015 Feb;28(1):35-44. doi: 10.1055/s-0034-1390028. Epub 2014 Sep 26.
Biologic Options for Articular Cartilage Wear (Platelet-Rich Plasma, Stem Cells, Bone Marrow Aspirate Concentrate). Kraeutler MJ, Chahla J, LaPrade RF and Pascual-Garrido C. Clin Sports Med. 2017 Jul;36(3):457-468. doi: 10.1016/j.csm.2017.02.004. Epub 2017 Apr 1.