Instruments and methods for reduction of vertebral bodies

a vertebral body and instrument technology, applied in the field of spine surgery, can solve the problems of destabilizing bone and affecting surrounding structures, pain and/or nerve damage, and altering the natural spacing between adjacent vertebrae, so as to minimize the damage to surrounding tissue

Inactive Publication Date: 2006-05-04
ZIMMER SPINE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] A spinal stabilization system may be used to achieve rigid pedicle fixation while minimizing the amount of damage to surrounding tissue. In some embodiments, a spinal stabilization s

Problems solved by technology

Degeneration may destabilize bone and affect surrounding structures.
For example, destabilization of a spine may result in alteration of a natural spacing between adjacent vertebrae.
Pressure applied to the nerves may cause pain and/or nerve damage.
Conventional procedures may result in trauma to the soft tissue, for example, due to muscle stripping.
Dissec

Method used

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  • Instruments and methods for reduction of vertebral bodies
  • Instruments and methods for reduction of vertebral bodies
  • Instruments and methods for reduction of vertebral bodies

Examples

Experimental program
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Embodiment Construction

[0050] A spinal stabilization system may be installed in a patient to stabilize a portion of a spine. Spinal stabilization may be used, but is not limited to use, in patients having degenerative disc disease, spinal stenosis, spondylolisthesis, pseudoarthrosis, and / or spinal deformities; in patients having fracture or other vertebral trauma; and in patients after tumor resection. A spinal stabilization system may be installed using a minimally invasive procedure. An instrumentation set may include instruments and spinal stabilization system components for forming a spinal stabilization system in a patient and for facilitating reduction of one or more vertebral bodies.

[0051] A minimally invasive procedure may be used to limit an amount of trauma to soft tissue surrounding vertebrae that are to be stabilized. In some embodiments, the natural flexibility of skin and soft tissue may be used to limit the length and / or depth of an incision or incisions needed during the stabilization pro...

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PUM

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Abstract

A spinal stabilization system may be formed in a patient. In some embodiments, a minimally invasive procedure may be used to form a spinal stabilization system in a patient. Bone fastener assemblies may be coupled to vertebrae. Each bone fastener assembly may include a bone fastener and a collar. The collar may be rotated and/or angulated relative to the bone fastener. Extenders may be coupled to the collar to allow for formation of the spinal stabilization system through a small skin incision. The extenders may allow for alignment of the collars to facilitate insertion of an elongated member in the collars. An elongated member may be positioned in the collars and a closure member may be used to secure the elongated member to the collars. A reducer may be used to achieve reduction of one or more vertebral bodies coupled to a spinal stabilization system.

Description

BACKGROUND [0001] 1. Field of the Invention [0002] The present invention generally relates to instruments and methods used during a spinal stabilization procedure to join vertebrae together. More particularly, the present invention generally relates to spinal surgical procedure that may use instruments and methods for reducing adjacent vertebrae. [0003] 2. Description of Related Art [0004] Bone may be subject to degeneration caused by trauma, disease, and / or aging. Degeneration may destabilize bone and affect surrounding structures. For example, destabilization of a spine may result in alteration of a natural spacing between adjacent vertebrae. Alteration of a natural spacing between adjacent vertebrae may subject nerves that pass between vertebral bodies to pressure. Pressure applied to the nerves may cause pain and / or nerve damage. Maintaining the natural spacing between vertebrae may reduce pressure applied to nerves that pass between vertebral bodies. A spinal stabilization proc...

Claims

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Application Information

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IPC IPC(8): A61B17/60
CPCA61B17/7011A61B17/7032A61B17/7037A61B17/7091A61B2017/90A61B17/7086A61B17/90
Inventor JONES, ROBERT J.FORTON, CHARLES R.
Owner ZIMMER SPINE INC
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