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These two saws are exceedingly useful in bone-cutting work. One (Fig. 1) was designed by me for the purpose of removing the transplant from the crest of the tibia in accordance with the technic of Dr. J. B. Murphy. It is a circular cross-cut saw, 1 inch in diameter and onesixteenth inch thick, with a shank about 4 inches in length adapted to the Neff Victor motor handle (Fig. 2). The guard (Fig. 2, A), which is attached to the handle, carries at right angles to it a short movable rod (Fig. 2, B), which is adjustable (1) so that the size of the transplant can be regulated, (2) to steady the saw and prevent it from injuring the soft tissues, and (3) to keep it in a straightline. It cuts the bone rapidly, saving time and energy. The diameter and thickness of the saw depend on the character of the
ZAPFFE FC. TWO NEW CIRCULAR BONE-SAWS. JAMA. 1913;60(17):1285. doi:10.1001/jama.1913.04340170013007