Description
Down Biting Kerrison
The Down Biting Kerrison Rongeur is purpose-built to solve a common ergonomic and functional challenge in spine surgery: the difficulty of taking reverse bites without awkward repositioning or hand fatigue. Traditional Kerrisons often require the surgeon to angle their wrist unnaturally or rotate their body around the patient to reach posterior structures, especially during decompressions. This down-biting design eliminates that need by naturally aligning with the anatomy, enabling smooth, efficient backward bites while maintaining a comfortable, neutral hand position.
In lumbar spine surgery, where exposure can be limited and the anatomy often requires working from multiple angles, especially around the lamina and facets—this Kerrison shines. Its ability to approach the bone from a reverse angle without the need to reposition the surgeon or compromise hand placement is particularly beneficial at deeper levels, such as L4–L5 or L5–S1, where traditional instruments may fall short. It allows for precise decompression around nerve roots and undercutting of facets with minimal disruption to surrounding tissues.
To accommodate varying preferences and surgical demands, the Down Biting Kerrison is available in both 40° and 90° angles, with a choice of thin or standard footplates. Bite widths range from 1mm to 4mm, providing the precision needed for fine bony work and the strength for more aggressive removal. Additionally, surgeons can choose models with or without an ejector, depending on preference for debris clearance during continuous use. Every detail is engineered to support speed, accuracy, and safety in high-stakes surgical environments.
Built from high-grade surgical materials and finished with our proprietary PVD (Black Coat) coating, this Kerrison offers superior durability, resistance to wear, and reduced glare under operating lights. The instrument’s balance, feel, and precision cutting action make it a natural extension of the surgeon’s hand. Trusted by spine specialists for its ergonomic design and unmatched utility, the Down Biting Kerrison is a must-have instrument for lumbar decompression and fusion procedures where control and efficiency matter most.
