What is the difference between direct thermal and thermal transfer printing? There are two thermal printing methods: direct thermal and thermal transfer. Each method uses a thermal printhead that applies heat to the surface being marked. Thermal transfer printing uses a heated ribbon to produce durable, long-lasting images on a wide variety of materials.
(July 2013). An interbody fusion cage (colloquially known as a  spine cage ) is a prosthesis used in spinal fusion procedures to maintain foraminal height and decompression.n interbody fusion cage (colloquially known as a  spine cage ) is a prosthesis used in spinal fusion procedures to maintain foraminal height and decompression.
Article continues below. While most cages are placed through an ALIF, they can also be placed in the back of the spine (posterior lumbar interbody fusion or PLIF) through a midline incision in the back (see Figure 2).In This Article: 1  Spine Fusion Instrumentation. 2  Pedicle Screws for Spine Fusion.rticle continues below. While most cages are placed through an ALIF, they can also be placed in the back of the spine (posterior lumbar interbody fusion or PLIF) through a midline incision in the back (see Figure 2).