Systems, assemblies and methods for spinal derotation

摘要

Systems, assemblies, components and methods for correcting alignment of one or more vertebrae of a spine are provided. A first elongate derotator member includes a first elongate element having a first proximal end portion and a first distal end portion. The first distal end portion is releasably engageable with a first implant implanted in one of the vertebrae. A second elongate derotator member comprising a second elongate element is releasably engageable with a second implant implanted in the same vertebra. A transverse member is engageable with the first and second elongate elements. A first channel extends axially through the first elongate element and a second channel extends axially through the second elongate element such that a proximal end portion of the first implant can be accessed from a proximal end portion of the first elongate element by inserting a tool through the first channel and a proximal end portion of the second implant can be accessed from a proximal end portion of the second elongate element by inserting the tool or another tool through the second channel.

主权项

1. A system for correcting alignment of one or more vertebrae of a spine, said system comprising:
a first elongate derotator member comprising a first elongate element having a first proximal end portion and a first distal end portion, said first distal end portion being releasably engageable with a first implant implanted in one of the vertebrae; a second elongate derotator member comprising a second elongate element having a second proximal end portion and a second distal end portion, said second distal end portion being releasably engageable with a second implant implanted in the one of the vertebrae; and a transverse member engageable with said first and second proximal end portions of said first and second elongate elements; wherein a first channel extends axially through said first elongate element and a second channel extends axially through said second elongate element such that a proximal end portion of the first implant can be accessed from a proximal end portion of said first elongate element by inserting a tool through said first channel when said first elongate derotator member is engaged with the first implant and a proximal end portion of the second implant can be accessed from a proximal end portion of said second elongate element by inserting the tool or another tool through said second channel when said second elongate derotator member is engaged with the second implant; and at least one tool configured for insertion through at least one of said first and second channels.