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Description & Technology

The HammerLock® is the most advanced intramedullary implant system for hammertoe fusions. Made of the shape memory alloy Nitinol, the HammerLock implant provides secure and stable form of compressive fixation without the need to disrupt adjacent joints nor the need risk infection due to exposed wires. In addition, our proprietary insertion system ensures the procedure is simple, fast and reproducible saving time and costs in the operating room.



  • New linear body results in a greater bone fusion area at the joint interface, enhanced flexibility in positioning and easier reduction compared to the original HammerLock®.
  • Patent-pending HammerBlockTM with Squeeze TabTM delivery system ensures precise positioning of the implant in the proximal canal during insertion and locks the implant in place during bone reduction to prevent proximal migration.
  • Flat-body design resists rotation during healing while taking up minimal canal space.
  • Distal and proximal barbed legs provide secure active fixation by continuously adjusting to the width of the canal.
  • The HammerLock® implant’s thicker, yet flexible, barbed legs are designed to resist breakage and provides secure fixation while minimizing stress on the cortical walls.
  • Shape memory design provides continuous active compression of bones during the entire healing process.

Common Procedures Using the HammerLock®

  • Hammertoe Arthrodesis
  • Mallet Toe Correction


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Adjunct Product for MPJ Instability