SLOB

Hip growth under this umbrella cover of thick of new bone must follow the container down & outward contour. Thus the native hip can and does deepen. The ridge in the bone-graft caused by the rectus femoris reflected ligament (shown in yellow) allows a very accurate marker for assessing the original hip from new growth augmented hip. Sometimes, portions of the new bone graft mass seem to not have made bone. Ooooo. We were not happy with this.. but ultrasound, MRI, probe, and outlining air injection as well as biopsy has taught us that this is actually very tough uncalcified bone. It works either way, calcified or not. We call it shark bone as that is what our radiologists called it. Calcification makes bone stiff, but not so much stronger.