Less Invasive Technology Uses Mirror Image for
Exact Bone Replacement in Wrists

Exact Bone takes a 3D image of the bone on the opposing hand or foot. Then it makes a model based on the mirror image of that specific bone. Thus, you know the bone replacement will be the exact size and shape needed to replace the damaged bone.

Technology Capabilities

  • Modify the surface areas of the synthetic bone. You can insure the articulating areas are smooth and functional.
  • Create smooth surfaces or partial bone for the bones surrounding the damaged bone. Thus, you can remove the arthritic joint and replace it with a smooth, functioning joint.
  • Make precise cuts in the bone so that the partial bone replacement fits exactly and precisely onto the cut bone.
  • Create custom attachment holes to affix the partial bone.
  • Use a pattern for specific cutting slots to excise a sliver of bone and support the bone when received in the bore.
  • Make attachment places in the replacement bone such as holes so the bones can be easily fixed in place with nails or screws.

It’s possible to attach ligaments through holes in the bone replacement. You could attach a dorsal interior circular muscle unit (DIC) ligament to a flexor carpi radialis (FCR) tendon through a first implant opening, and attach a scapholunate ligament (SL) to a volar capsule through a second implant opening.

Exact Bone was initially designed to solve problems with the particularly difficult scaphoid bone. It is one of the most common fractures and one of the hardest to resolve due to low blood flow. However, the technique can be equally effective on all wrist, hand, ankle, and foot bones.

Because the replacement bone can be constructed quickly, surgery can be performed soon after an accident, thus reducing the likelihood of the patient developing arthritis later in life. Surgery can be performed sooner than with a Herbert screw, wrist fusion or replacement.