Bone
cutter has two straight sharp edges and may have one or two fulcrums for double
action. They are used to cut a small bone or the irregular edge of long bone.
Rongeurs
Rongeurs are instruments with two
curved cutting edges with one or two fulcrums for nibbling the edges of a bone
to enlarge the cavity created.
Those
in use are:
• Horsley (Fig. 8.20)
• Cairns (Fig. 8.21)
• Killearn (Fig. 8.22)
• Pennybacher (Fig. 8.23)
• Bateman (Fig. 8.24).
Rougines
Rougines are sharp edged instruments. They
are used to lift the periosteum from the surface of a bone. This is essential
prior to using any cutting instruments on the bone.
Roughine
(periosteal elevators) in use are:
• Farabeuf (Fig. 8.25)
• Semb (Fig. 8.26)
• Tudor Edwards (Fig. 8.27)
• Doyen (Fig. 8.28).
Rib Cutters
Rib cutters are:
• Vehmehren
(Fig. 8.29)
• Doyen
(Fig. 8.30)
• Giertz
(Fig. 8.31).
Access
to the chest for procedures within the thorax or for draining of an infected
pleural cavity may require rib cutters.
These
are of different shapes to match requirements of different ribs. There is a
surface that protects the pleura from injury by the cutting edge of the cutter.
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