Kerrison Punches

Kerrison Punches

Kerrison Punches from this series come in three footplate bite sizes: 2 mm, 3 mm, and 5 mm, all mounted on a shared 15 cm overall length instrument body with a 9 cm slender tubular shaft. The full build uses medical-grade stainless steel throughout, autoclave-compatible and rated for repeated sterilization without dimensional change. Two open finger rings at the proximal end form the handle, operated by thumb and index finger in a scissor-grip motion. An internal ejector mechanism sits within the shaft fenestration window, it clears captured bone fragments outward after each punch cycle, keeping the working channel unobstructed between bites. The footplate at the distal tip carries a semi-circular, upward-biting profile.

Classical Kerrison Bone Punches operate by advancing the footplate under the target bone structure, then compressing the handles to drive a sharp sliding cutter forward, shearing the bone fragment cleanly from the surrounding lamina or ligament. The 2 mm bite suits fine cervical decompression work, the 3 mm handles standard lumbar bone removal, and the 5 mm footplate covers wider laminectomy passes where larger bone volumes need sequential clearing.

Kerrisons for Neurosurgery are used by neurosurgeons and orthopedic spine surgeons during laminectomy to remove vertebral lamina and decompress the spinal cord, during foraminotomy to widen nerve root exit channels, and during discectomy to access herniated intervertebral discs. The Kerrison Punches 15 cm shaft length suits deep lumbar and thoracic approaches where shorter instruments cannot reach the operative field without obstruction.

Instrument buyers who have standardized on Leader Surgical across their spine trays report fewer intraoperative instrument exchanges, a direct outcome of consistent bite geometry and ejector reliability across every size in the range.

What is a Kerrison punch?
It is a specialized manual instrument used in spine and cranial surgeries to precisely remove small “bites” of bone and tough ligament (like the ligamentum flavum) to decompress neural structures.