Spinal construct and method

A spinal construct comprising:

• a fastener including a head and a shaft;
• an adaptor including an inner surface defining a groove and a cavity for disposal of the head, the adaptor comprising a threaded inner surface defining a first opening and an unthreaded inner surface defining a second opening, the openings being in communication with the cavity, the head having a maximum diameter greater than a maximum diameter of the first opening and less than a maximum diameter of the second opening to allow the head to be bottom loaded into the cavity;
• an expandable ring being disposable with the groove and engageable with the head to connect the fastener and the adaptor;
• a post threadably attachable with the adaptor, the post comprising a threaded outer surface engaged with the threaded inner surface, the post including opposite first and second ends and an intermediate portion between the first end and the second end, the first end including a first portion having a hexagonal geometry, the second end including a second portion having the threaded outer surface, the second portion having a diameter greater than a diameter of the first portion, the intermediate portion including a threaded section and a non-threaded section between the threaded section and the second portion;
• a crown disposable between the post and the head;
• a connector that defines a passageway for disposal of the post and being translatable relative thereto, the connector including a first extension disposed in spaced apart relation from a second extension, the extensions defining a U-shaped implant cavity in communication with the passageway;
• a set screw including a threaded outer surface engageable with threaded inner surfaces of the extensions;
• and
• a spinal rod disposed with the implant cavity such that the spinal rod engages the post and the set screw engages the spinal rod to fix the connector with the post, the spinal rod being spaced apart from the adaptor by the connector and the post.

A spinal implant system comprising:

• a plurality of alternate adaptors each including a cavity and a groove comprising a first channel and a second channel separated from the first channel by a protrusion;
• a fastener including a head engageable with a receiver such that the fastener is compatible with the plurality of adaptors, wherein an adaptor is selected for connection with the head to comprise a spinal construct having a selected movement;
• a ring disposed in one of the first channels and configured to translate over a respective one of the protrusions and into a respective one of the second channels to maintain the head in a respective one of the cavities;
• a longitudinal element connectable to the adaptor, the longitudinal element including opposite first and second ends and an intermediate portion between the first end and the second end, the first end including a first portion having a hexagonal geometry, the second end including a second portion having a diameter greater than a diameter of the first portion, the intermediate portion including a threaded section and a non-threaded section between the threaded section and the second portion;
• a body defining a passageway for disposal the longitudinal element, the body including a first extension disposed in spaced apart relation from a second extension, the extensions defining a U-shaped implant cavity in communication with the passageway;
• a coupling member including a threaded outer surface engageable with threaded inner surfaces of the extensions;
• and
• a spinal rod disposed with the implant cavity such that the spinal rod engages the longitudinal element and the coupling member engages the spinal rod to fix the body with the longitudinal element, the spinal rod being spaced apart from the adaptor by the body and the longitudinal element.