Apparatus and method for percutaneously extending an existing spinal construct

A rod connector for attachment to a spinal rod in an existing spinal construct implanted in a patient, comprising:

• a first portion having a rod receiving opening for receiving said existing spinal rod in an unlocked position, wherein said first portion comprises a pair of spaced hooks defining said rod receiving opening, each of said hooks including a projecting rod engagement member that is configured to engage said existing spinal rod upon rotation of said first portion relative to said existing spinal rod about an axis of engagement;
• a second portion attached to said first portion in a first unlocked position in which said second portion rotates and articulates relative to said first portion and in a second locked position in which said second portion is fixed relative to said first portion, said second portion including a connecting portion projecting therefrom;
• said first portion and said second portion being coupled for relative articulation by a ball and socket structure;
• and
• a locking element separate from said first element and supported by and engaging said second portion, said locking element being operable to securely lock said first portion to said second portion in said second locked position.

A rod connector for attachment to a spinal rod in an existing spinal construct implanted in a patient, comprising:

• a first portion having a first opening extending therethrough defining an axis, said first portion having a rod receiving opening configured to receive said existing spinal rod;
• a second portion attached to said first portion, said second portion having a second opening defining an axis, said second opening having an internal spherical surface, said first portion being configured to attach to said existing spinal rod, said second portion including a connecting portion projecting therefrom;
• an insert having an external spherical surface supported by said first portion, said external spherical surface extending into said second opening and cooperating with said internal spherical surface to allow articulating movement between said first portion and said second portion, and
• a locking element supported for rotation in said second opening along said axis, said locking element being movable axially upon rotation within said second opening to securely lock said first portion to said second portion.