Corpectomy device and methods of use thereof

A kit for spinal surgery comprising:

• a spinal fixation device including:
• a housing defining a chamber;
• a first end plate assembly operatively coupled with the housing, the first end plate assembly including a first end plate configured to engage a vertebral body and first and second support assemblies operatively coupled to the first end plate, the first support assembly selectively movable between a first position in which the first end plate is spaced apart from the housing and a second position in which the first end plate is adjacent the housing, the second support assembly movable between a first state in which the first end plate has a first angular orientation and a second state in which the first end plate has a second angular orientation;
• and
• a second end plate assembly interchangeable with the first end plate assembly, the second end plate assembly including a second end plate having dimensions different from the first end plate, and third and fourth support assemblies, wherein the third support assembly is selectively movable between a third position different from the first or second position of the first support assembly and a fourth position different from the first or second position of the first support assembly, and the fourth support assembly
• is movable between a third in which the second end plate has a third angular orientation different from the first or second angular orientation of the first end plate and a fourth state in which the second end plate defines a fourth angular orientation different from the first or second angular orientation of the first end plate;
• and
• a surgical instrument including an engaging portion configured to securely engage the housing of the spinal fixation device.

A method of spinal surgery comprising:

• positioning a spinal fixation device between adjacent vertebral bodies, the spinal fixation device including:
• a housing defining a longitudinal axis;
• and
• an end plate assembly operatively coupled with the housing, the end plate assembly including a first end plate configured to engage a vertebral body and first and second support assemblies operatively and concentrically coupled about the longitudinal axis to the first end plate;
• adjusting a length of the spinal fixation device by transitioning the first support assembly from a first position in which the first end plate and the housing define a first distance to a second position in which the first end plate and the housing define a second distance different from the first distance;
• and
• varying an angular orientation of the first end plate with respect to a longitudinal axis defined by the spinal fixation device by transitioning the second support assembly from a first state in which the first end plate defines a first angular orientation to a second state in which the first end plate defines a second angular orientation.