Implant for total wrist replacement

A surgical implant assembly, comprising:

• a unitary carpal implant based on a received proximal carpal row (PCR) scan, the implant based on a fused and wrapped representation of the imaged skeletal structures including a scaphoid, lunate and triquetrum aggregated as a single solid shape, the implant further based on a contralateral, inverted image of a corresponding healthy skeletal structure of a patient anatomy;
• a radial implant based on a received radial scan, the radial implant having a bearing portion and an insertion portion arranged in a substantially perpendicular orientation,
• the insertion portion defining a stem engageable with a surgical recess formed in a truncated radius of the patient and having a length corresponding to a depth of the surgical recess;
• and
• the bearing portion having an underside adapted for abutting the truncated surface and a bearing surface for engaging the radial implant and a thickness based on a preoperative length of the radius, thereby approximating the natural radius length via the bearing portion.