Bone Rongeurs and Bone Cutting Forceps: Types, Actions and Jaw Sizes

How a bone rongeur works

A bone rongeur has two cupped, sharp-edged jaws on a pair of handles. When the handles close, the jaw edges meet and bite off a piece of bone, which stays inside the cups until it is released. Rongeurs are used to remove spurs, shape bone ends, open a cortical window and collect bone for grafting.

Bone cutting forceps, by contrast, have straight or angled cutting blades that shear through rods of bone, ribs or wire-like bone sections. The Liston bone cutter is a classic example and is built for strong cutting rather than nibbling.

Luer, Stille and Liston: the main patterns

The Luer rongeur is the best-known pattern, with large, cupped jaws, curved or straight, in several jaw widths and handle styles. The Stille pattern is a heavier rongeur designed for dense bone and is available in different jaw shapes. The Liston bone cutter is a cutting forceps with sharp blades, in straight and angled versions.

REDA lists Luer and Stille bone rongeurs, bone cutting forceps and bone holding forceps in its orthopaedic instrument range. For thin-footplate spinal punches see our article on the Kerrison rongeur.

Single action vs double action rongeur

A single-action rongeur has one hinge point. It is simple and robust, easy to clean and gives direct feedback to the hand, but needs more hand force for hard bone. A double-action rongeur uses compound leverage with two pivots, which multiplies the cutting force, so thick or dense bone can be bitten with less effort. That makes double action useful for long cases and for surgeons with smaller hands.

The trade-off is complexity. Double-action joints have more surfaces where blood and debris can lodge, so they must be disassembled or flushed properly in reprocessing, according to the manufacturer's instructions. See instrument reprocessing steps.

Jaw size, shaft length and handle spring

Jaw size is quoted as the width of the cups in millimetres. Small jaws control the amount of bone removed and suit delicate work, large jaws save time on bulky bone. Shaft length must match the depth of the wound, and a longer shaft gives reach but reduces the force available at the tip.

Check that the handle opens comfortably and, for repeated use, that a leaf spring is present and does not fatigue quickly. A good rongeur closes cleanly without a gap between the cup edges.

• Pattern: Luer, Stille or cutting forceps (Liston)
• Action: single or double
• Jaw width and shape: straight, curved or side-biting
• Shaft length for the depth of the approach
• Cleaning: hinge accessibility and flushing ports

Care, inspection and what to ask your supplier

Inspect the cup edges for chips and misalignment, test that the jaws meet along their whole length and check the hinge for looseness before every use. Edges that no longer meet cleanly will crush bone and should go for service. Plan sharpening or replacement through an approved workshop; see instrument repair and sharpening.

Ask suppliers for the steel specification, the reprocessing instructions, the sizes available and whether spare parts or servicing exist. Compare on these points, not on the name of the pattern alone. A broader summary is in orthopaedic instruments names and uses.

Request a bone rongeur quote

Beckfinity offers REDA bone rongeurs and bone cutting forceps for UAE hospitals and clinics. Send us your required patterns, jaw sizes and quantities for a quotation, and please confirm current registration requirements with the relevant UAE authority.