VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, IT WAS OBSERVED THAT WHILE USING THE ROBOTIC-ASSISTED SOLUTION SATELLITE STATION DEVICE A CUT WAS MADE "THAT WAS NOT APPROPRIATE." IT WAS REPORTED THAT WHILE PLACING THE IMPLANT THE ANTERIOR CUT WAS OFF. IT WAS REPORTED THAT A REVISION HAD TO BE MADE TO THE IMPLANT AND THE CONDYLE WAS FRACTURED DURING THE CASE. IT WAS REPORTED THAT THE POINTER HAD NOT BEEN USED FOR VERIFICATION. IT WAS REPORTED THAT THE CUT ON THE FEMUR HAD NOTCHED THE ANTERIOR CORTEX. IT WAS REPORTED THAT THE DEVICE WAS BEING USED WITH A ROBOTIC ASSISTED BASE STATION DEVICE. THERE WERE NO DELAYS IN THE PROCEDURE. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY. THIS IS REPORT 1 OF 2 FOR (B)(4).

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, IT WAS OBSERVED THAT WHILE USING THE ROBOTIC-ASSISTED SOLUTION SATELLITE STATION DEVICE A CUT WAS MADE "THAT WAS NOT APPROPRIATE". IT WAS REPORTED THAT WHILE PLACING THE IMPLANT THE ANTERIOR CUT WAS OFF. IT WAS REPORTED THAT A REVISION HAD TO BE MADE TO THE IMPLANT AND THE CONDYLE WAS FRACTURED DURING THE CASE. IT WAS REPORTED THAT THE POINTER HAD NOT BEEN USED FOR VERIFICATION. IT WAS REPORTED THAT THE CUT ON THE FEMUR HAD NOTCHED THE ANTERIOR CORTEX. IT WAS REPORTED THAT THE DEVICE WAS BEING USED WITH A ROBOTIC ASSISTED BASE STATION DEVICE. THERE WERE NO DELAYS IN THE PROCEDURE. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY. THIS IS REPORT 2 OF 2 FOR (B)(4).

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, IT WAS OBSERVED THAT ¿INCORRECT CUTS WERE MADE¿ WHILE USING THE ROBOTIC-ASSISTED SOLUTION SATELLITE STATION DEVICE. ACCORDING TO THE REPORT, THE SURGEON INITIALLY CUT FOR A SIZE 6 FEMUR AND WANTED TO RECUT TO A SIZE 5 FEMUR TO OPEN FLEXION SPACE. THE REPORTER STATED THAT THE ROBOT WAS SET TO ¿ANTERIOR REFERENCING¿, SO THE SURGEON CHANGED TO A SIZE 5 AND RECUT FEMUR. IT WAS REPORTED THAT THE CUTS WERE OFF BY OVER ¿ONE FULL SIZE AND THE CHAMFER CUTS WERE ANGLED WAY OFF.¿ THE REPORTER STATED THAT THE SURGEON DID NOT OBSERVE PIN OR ARRAY MOVEMENT, BUT IT COULD HAVE HAPPENED. THE SURGEON SWITCHED FROM PRESS FIT TO CEMENTED CRS REVISION FEMUR WITH 30MM STEM AND A RP REVISION TIBIA WITH A CONSTRAINED CRS FEMUR DUE TO CUTS NOT MATCHING. ADDITIONALLY, IT WAS REPORTED THAT THE PATIENT STARTED WITH 15 DEGREES OF FLEXION CONTRACTURE. AFTER THE INITIAL CUTS, THE PATIENT HYPER EXTENDED BY 15 DEGREES AND WAS ANOTHER REASON TO USE CRS REVISION COMPONENTS. IT WAS REPORTED THAT THERE WAS A SURGICAL DELAY OF 35 MINS. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BE

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, IT WAS OBSERVED THAT WHILE USING THE ROBOTIC-ASSISTED SOLUTION SATELLITE STATION DEVICE THE MEDICAL CRUCIATE LIGAMENT WAS UNINTENTIONALLY CUT. IT WAS REPORTED THAT REVISION COMPONENTRY WAS REQUIRED. THE LIGAMENT WAS REPAIRED AND IMPLANTED COMPONENTS LOOKED GOOD. IT WAS REPORTED BY THE SURGEON THAT THE RETRACTORS SHOULD HAVE BEEN PLACED BETTER. IT WAS REPORTED THAT THE DEVICE WAS BEING USED WITH A ROBOTIC ASSISTED BASE STATION DEVICE. THERE WERE NO DELAYS IN THE PROCEDURE REPORTED. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY.

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT THE SAW BLADE DETACHED FROM SAW HAND PIECE WHILE CUTTING FEMUR, SAW BLADE STAYED EMBEDDED IN THE FEMUR. BLACK LIQUID WAS NOTED AROUND WHERE THE SAW BLADE ATTACHES TO THE SAW HAND PIECE. WAS SURGERY DELAYED DUE TO THE REPORTED EVENT? YES. IF YES, NUMBER OF MINUTES: 5.

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT PRIOR TO A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, THE ROBOTIC-ASSISTED SOLUTION SAW HANDPIECE DEVICE WAS OPENED FOR THE PROCEDURE PRIOR TO THE PATIENT COMING INTO THE ROOM. THE DEVICE HAD A LEAK WHICH APPEARED TO BE OIL. IT WAS REPORTED THAT THE SAME WAS TRUE WITH THE SECOND HANDPIECE. THE HANDPIECES WERE RETURNED TO STERILE PROCESSING FOR CLEANING AND STERILIZATION. WHEN IN STERILE PROCESSING THE DEVICE WAS HAND WASHED AND IT WAS MADE SURE THAT ALL RESIDUE WAS REMOVED FROM BOTH HANDPIECES AND RE-STERILIZED. AFTER THE STERILIZED PACKAGES WERE RE-OPENED, THE OIL RE-APPEARED AND THE CASE HAD TO BE CANCELLED. IT WAS REPORTED THAT THE PATIENT RECEIVED A REGIONAL ANESTHETIC PRIOR TO THE PROCEDURE BEING CANCELLED. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY. THIS IS REPORT 2 OF 2 FOR (B)(4).

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT PRIOR TO A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, THE ROBOTIC-ASSISTED SOLUTION SAW HANDPIECE DEVICE WAS OPENED FOR THE PROCEDURE PRIOR TO THE PATIENT COMING INTO THE ROOM. THE DEVICE HAD A LEAK WHICH APPEARED TO BE OIL. IT WAS REPORTED THAT THE SAME WAS TRUE WITH THE SECOND HANDPIECE. THE HANDPIECES WERE RETURNED TO STERILE PROCESSING FOR CLEANING AND STERILIZATION. WHEN IN STERILE PROCESSING THE DEVICE WAS HAND WASHED AND IT WAS MADE SURE THAT ALL RESIDUE WAS REMOVED FROM BOTH HANDPIECES AND RE-STERILIZED. AFTER THE STERILIZED PACKAGES WERE RE-OPENED, THE OIL RE-APPEARED AND THE CASE HAD TO BE CANCELLED. IT WAS REPORTED THAT THE PATIENT RECEIVED A REGIONAL ANESTHETIC PRIOR TO THE PROCEDURE BEING CANCELLED. THERE WAS PATIENT INVOLVEMENT. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY. THIS IS REPORT 1 OF 2 FOR (B)(4).

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT DURING A TOTAL KNEE ARTHROPLASTY SURGICAL PROCEDURE, IT WAS OBSERVED THAT WHILE USING THE ROBOTIC-ASSISTED SOLUTION SATELLITE STATION DEVICE IT WAS NOTICED THAT THE ANTERIOR CUT WAS OFF. IT WAS ALSO REPORTED THAT THE ROBOTIC ASSISTED BASE STATION DEVICE WAS TAKING A LONG TIME TO BOOT UP AND THE POWER CORD WOULD NOT STAY SECURELY ATTACHED TO THE BASE STATION. IT WAS REPORTED THAT THE SYSTEM WAS WORKING HOWEVER THE POWER CORD IS CAUSING FRUSTRATION WITH THE SYSTEM SHUTTING DOWN. THERE WERE NO DELAYS IN THE PROCEDURE. THERE WAS PATIENT INVOLVEMENT. THERE WERE NO INJURIES, MEDICAL INTERVENTION OR PROLONGED HOSPITALIZATION. ALL AVAILABLE INFORMATION HAS BEEN DISCLOSED. IF ADDITIONAL INFORMATION SHOULD BECOME AVAILABLE, A SUPPLEMENTAL MEDWATCH WILL BE SUBMITTED ACCORDINGLY.

VELYS — Injury report filed with FDA (MAUDE). A MAUDE report does not establish that the device caused the outcome. Reported narrative: IT WAS REPORTED THAT WHEN VERIFYING THE CUTS ON THE FEMUR, IT APPEARED THAT THE LATERAL POSTERIOR CUT HAD BEEN OVER RESECTED BY 1MM WHEN USING VELYS. WHEN SURGEON PUT TRIALS ON, HE NOTICED CONSIDERABLE 1-2MM GAPS BETWEEN BONE AND TRIAL FEMUR FOR THE: POSTERIOR, ANTERIOR, ANTERIOR CHAMFER AND DISTAL. LEFT TKR USING VELYS ATTUNE PS FB CONSTRUCT.