Two light-weight, rigid metal struts (one vertical and another horizontal) attached with each other in the form of plus sign (hyperextension frame) with slits for adjustment of pads.
Two lateral pads, one sternal pad, and one pelvic pad (of non-absorbent foam) attached to the semi-rigid, plastic splints, which are to be adjusted (using screws) over the hyper-extension frame for proper as well as comfortable body contact fit.
A heavy-duty strap attached to one lateral pad of the horizontal bar of hyperextension frame is to be fixed to the other lateral pad, by reverse locking of velcro closure.
A semi rigid, plastic splint padded with non-absorbent foam acts as a thoraco-lumbar back support.
Thoraco-lumbar spine immobilization in hyperextension in case of T12-L1 flexion injury.