Reduced extravasation of bone cement

摘要

The risk of bone cement extravaation can be reduced by delivering a calcium-dependent polymerizing sealant into a bone structure prior to delivery of bone cement into that structure. The polymerization of the sealant in response to the calcium within the bone structure can fill cracks and any other potential cement leakage paths, thereby minimizing the potential for subsequent extravaation. The benefits of the use of a calcium-dependent polymerizing sealant can be provided in any procedure involving the use of bone cement, such as spinal fixation, vertebroplasty, and kyphoplasty, among others.

主权项

1. A method for treating a bone structure, comprising:
providing a kit comprising:
a calcium-dependent polymerizing sealant comprising an alginate,a high pressure injection system for delivering the calcium-dependent polymerizing sealant,bone cement,a second injection system for delivering the bone cement, andinstructions for use of the kit; injecting the calcium-dependent polymerizing sealant into the bone structure; allowing the calcium-dependent polymerizing sealant to polymerize in the bone structure; and injecting the bone cement into the bone structure, wherein the calcium-dependent polymerizing sealant is injected into the bone structure before the bone cement is injected into the bone structure to prevent bone cement extravasation.