This invention provides a 3D-printed, height-adjustable integrated reconstruction
prosthesis for spinal tumors, belonging to the field of orthopedic
medical device technology. It includes a support frame with two first prostheses symmetrically fixedly connected to its top and bottom. Each first
prosthesis has a hollow internal structure. An adjusting ring is rotatably connected to the inner wall of the support frame, and an adjusting
threaded rod is fixedly connected to the inner wall of the adjusting ring. The adjusting
threaded rod is rotatably connected to the interior of the first
prosthesis. A second prosthesis is threadedly connected to the outer wall of the adjusting
threaded rod, and the second prosthesis is slidably connected to the inner wall of the first prosthesis. The support frame, first prosthesis, and second prosthesis are formed by 3D printing. The prosthesis as a whole is a
porous titanium alloy structure with a
porosity of 60%–80% and a pore size of 300μm–800μm. This invention has the advantages of strong adaptability, high surgical efficiency,
structural stability, few complications, good
biocompatibility, high safety, individualized customization, and strong clinical adaptability.