In-situ additive expandable implants

An additive-manufacturing system for printing spinal implants in-situ, within a patient, comprising:

• a robotic subsystem including:
• scanning and imaging equipment configured to scan a patient's anatomy;
• and
• an armature including a dispensing component configured to dispense at least one printing material;
• a controller apparatus having a processor and a non-transitory computer-readable medium storing computer-executable instructions configured to, when executed by the processor, cause the controller to:
• control the scanning and imaging equipment to determine a target alignment of a patients spine;
• develop in-situ-forming instructions including an in-situ relocation plan based on the target alignment of the patients spine, an interbody access space, and a disc space between adjacent vertebra of the patients spine;
• execute the in-situ-forming instructions to:
• control the armature to dispense the at least one printing material to form at least one interbody cage, the at least one interbody cage corresponding to the interbody access space;
• and
• control the armature to position and/or reposition the at least one interbody cage within the disc space.