IT WAS REPORTED THAT DURING AN ACHILLES TENDON REPAIR SURGERY, THE ANCHOR SLIPPED OUT AND IT CAN'T SCREW-IN. IT IS UNKNOWN IF THERE WAS AN AVAILABLE BACKUP DEVICE OR A SIGNIFICANT DELAY DURING THE PROCEDURE. NO PATIENT INJURY OR OTHER COMPLICATIONS WERE REPORTED. RESULTS OF INVESTIGATION HAVE CONCLUDED THAT UNIT THREADS WERE DAMAGED (BURNISHED AND SCALLOPED) WHICH MAKES IT A REPORTABLE EVENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL REPORT WILL BE SUBMITTED ACCORDINGLY.