Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 4mm, 90° Up, Stainless Steel, Requires 70-2390 Micro

Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 4mm, 90° Up, Stainless Steel – Requires 70-2390 Micro Handle is a professional-grade modular surgical instrument engineered for spinal decompression, neurosurgical procedures, and orthopedic bone resection. Designed as a shaft-only component within a modular Kerrison Rongeur system, this instrument must be used with the compatible 70-2390 Micro Handle to create a complete functional surgical instrument.

The shaft features a 4mm bite size, providing an ideal combination of precision and efficient tissue removal. The larger bite profile allows surgeons to remove greater amounts of bone and ligamentous tissue with each activation while maintaining excellent control, making it suitable for both routine and advanced decompression procedures.

Its 90° upward-facing footplate is specifically designed to facilitate controlled bone resection beneath overlying anatomical structures. This configuration provides optimal access to the spinal canal and neural foramina, allowing surgeons to perform decompression procedures efficiently while preserving surrounding tissues.

The specialized bayonet design offsets the working tip from the handle, keeping the surgeon’s hand out of the direct line of sight. This enhances visualization of the operative field and is particularly beneficial during microscopic, minimally invasive, and spinal decompression procedures where unobstructed visibility is essential.

A key feature of this instrument is its rotating shaft mechanism, which allows surgeons to adjust the orientation of the cutting tip without repositioning the entire instrument. This functionality improves maneuverability, enhances access to difficult anatomical locations, and supports greater procedural efficiency during complex spinal surgeries.

With a 7-inch (175mm) shaft length, the instrument offers an excellent balance between reach and precision. The length is particularly suited for cervical, thoracic, and lumbar spine procedures where controlled bone removal is required within deep but confined surgical fields.

The Kerrison shaft is particularly effective for laminectomy, laminotomy, spinal decompression, foraminotomy, spinal stenosis surgery, cervical decompression, lumbar decompression, thoracic spine procedures, and neurosurgical interventions. It is commonly used for removing lamina, hypertrophic bone, osteophytes, ligamentum flavum, and other structures contributing to neural compression.

The precision-engineered cutting mechanism delivers smooth and controlled bone resection while providing excellent tactile feedback. This allows surgeons to perform decompression procedures confidently and accurately while minimizing unnecessary tissue trauma.

Manufactured from premium surgical-grade stainless steel, the shaft offers exceptional durability, corrosion resistance, and long-term clinical reliability. Precision manufacturing ensures smooth rotational performance, dependable cutting action, and consistent functionality through repeated sterilization cycles and routine surgical use.

The polished surgical finish facilitates efficient cleaning and supports compatibility with standard hospital sterilization protocols. Fully reusable and autoclavable, the Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 4mm, 90° Up, Stainless Steel is suitable for hospitals, spine centers, orthopedic departments, neurosurgical facilities, and teaching institutions worldwide.

Trusted by spine surgeons, orthopedic specialists, and neurosurgeons, this modular instrument component delivers efficient bone removal, superior surgical visibility, and professional-grade clinical reliability for advanced spinal and neurosurgical procedures.

Specifications

Frequently Asked Questions

What is this Kerrison shaft used for?

It is used for controlled bone removal and spinal decompression during spine surgery, neurosurgery, and orthopedic procedures.

What advantage does the 4mm bite size provide?

The 4mm bite size offers a balance of precision and efficiency, allowing surgeons to remove larger amounts of bone while maintaining excellent control during decompression procedures.

What is the purpose of the 90° upward footplate?

The 90° upward-facing footplate provides improved access beneath bony structures and facilitates controlled decompression within confined spinal spaces.

Why is the bayonet design beneficial?

The bayonet configuration improves visualization by keeping the surgeon’s hand away from the direct viewing path, providing a clearer and less obstructed view of the operative field.

Why is the shaft rotatable?

The rotating mechanism allows adjustment of the cutting tip orientation without repositioning the entire instrument, improving maneuverability, flexibility, and surgical precision.

Does this product include a handle?

No. This is a shaft-only component and requires the compatible 70-2390 Micro Handle to function as a complete Kerrison Rongeur.

Is the instrument reusable?

Yes. The Rotating Kerrison Shaft, 7″ (175mm) Bayonet, 4mm, 90° Up, Stainless Steel is fully reusable, autoclavable, and designed to maintain precision, durability, and performance through repeated sterilization and long-term clinical use.