DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Knuckle joint replacement surgery. Close-up of trial prosthetic implants used in surgery to replace knuckle joints with a prosthetic implants. The head of the metacarpal (hand bone) and phalanx (finger bone) will be replaced with a pyrocarbon implant similar to these. These trial prostheses are used to assess the correct size implant needed for the patient.
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