slide 1 of 2, Quad sets, 1  Sit with your leg straight and supported on the floor or a firm bed. 2  Tighten the muscles on top of your thigh by pressing the back of your knee flat down to the floor. 3  Hold for about 6 seconds, then rest up to 10 seconds. 4  Do this for 8 to 12 repetitions several times a day.
Allograft definition, a tissue or organ obtained from one member of a species and grafted to a genetically dissimilar member of the same species. See more. Dictionary.com
Bone graft that comes from a donor is called allograft bone. Allograft bone usually comes from bone banks that harvest the bone from cadavers. The types of allograft bone used for spine surgery include fresh frozen and lyophilized (freeze dried).The bone is cleaned and disinfected to reduce the possibility of disease transmission from donor to recipient. Allograft, like autograft, provides a framework for the new bone to grow on and into.n most cases, these are the preferred bone grafts to use. The graft bone is harvested, or taken, from the bones of the hip, the ribs or the leg. Autograft bone is one of the safest to use due to the low risk of disease transmission.