Down Biting Kerrison Rongeurs

Wiggins Medical Down Biting Kerrison Rongeurs let the surgeon take a downward bite while keeping the hand in its natural working position. A conventional Kerrison has to be flipped over to cut downward, which drives the horn into the palm; the down-biting geometry removes that compromise, so attention stays on the decompression rather than on the instrument.

Where the Downward Bite Earns Its Place

The downward cutting orientation is a frequent choice for foraminotomy, lateral recess decompression, and nerve root exposure, where engaging bone directly while preserving a clear line of sight improves both access and safety. Predictable bite direction and good tactile feedback are especially valuable close to neural structures.

Configuration Options

• Working length: 8 in.
• Footplate profiles: standard (bite widths 2 mm to 4 mm) or thin (bite widths 1 mm to 3 mm)
• Footplate angles: 40-degree down and 90-degree down, covering cervical and lumbar approaches
• Available with an ejector for rapid clearing of bone fragments, or without for a traditional feel

Representative Catalogue Numbers

• 52-172-02B
• 52-172-02PLB
• 52-172-03B
• 52-172-03PLEB
• 52-192-01B

The cutting edges are engineered to stay sharp without routine resharpening. Instruments are manufactured under an ISO 13485 certified quality system, and carry a lifetime warranty against manufacturer defects.

Canadian spine programs can order these down-biting Kerrisons through EB MED CO for their hospital or clinic.