SIGMA 94-0025Recalls & reported problems
Depuy (Ireland) · SIGMA FEMORAL CRUCIATE RETAINING POROCOAT SIZE 5 RIGHT · Class 2 · Implant
All models of SIGMA (380)
Data updated Oct 16, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 7
- Deaths reported
- 0
- Injuries reported
- 7
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 7 adverse event reports that list this exact device (DI 10603295223498), received between Jul 5, 2018 and Nov 25, 2024 — classified as 7 injuries.
The most frequently reported specific device problem is “Loss of Osseointegration” (2 reports).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 16, 2026.
Reports received per month
Most reported problems
Device problems
- Adverse Event Without Identified Device or Use Problem5
- Loss of Osseointegration2
- Osseointegration Problem1
Patient problems
- Inadequate Osseointegration3
- Pain3
- Swelling/ Edema3
- Unspecified Infection3
- Ambulation or Postural Difficulties2
- Hemorrhage/Blood Loss/Bleeding2
- Joint Laxity2
- No Code Available2
Recent adverse event reports
The 7 most recent of 7 reports, in the reporter's own words as published by the FDA.
InjuryNov 25, 2024Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
CLINICAL NOTE AD (B)(6) 2024 REVIEWED BY A CLINICIAN. THE PATIENT PRESENTS AT A FOLLOW-UP APPOINTMENT. HE PREVIOUSLY HAD BILATERAL TOTAL KNEE REPLACEMENTS 17 YEARS AGO. 2 WEEKS PRIOR, THE PATIENT WAS RISING FROM A SEATED POSITION AND FELT A TWINGE IN HIS RIGHT KNEE WITH SOME MEDIAL BASED PAIN AND SWELLING. THE PATIENT HAS DIFFICULTY WALKING. A KNEE ASPIRATION WAS COMPLETED AND SENT FOR CULTURE AND HE WAS GIVEN A PROPHYLACTIC DOSE OF ANTIBIOTICS. HOWEVER, IT IS STATED "THIS IS MOST LIKELY A PINCH OF HIS SYNOVIUM." THE SYNOVIAL FLUID DID HAVE SOME BLOOD THAT WILL GO AWAY ON ITS OWN.
Patient problems: Ambulation or Postural Difficulties; Hemorrhage/Blood Loss/Bleeding; Pain; Swelling/ Edema; Unspecified Infection
MAUDE report 20773622 ↗InjuryDec 28, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
PATIENT UNDERWENT PRIMARY TOTAL KNEE REPLACEMENT SURGERY ON THEIR RIGHT KNEE ON (B)(6) 2011. PATIENT UNDERWENT A TWO-STAGE REVISION FOR INFECTION ON (B)(6) 2013. NO FURTHER INFORMATION IS AVAILABLE. DOI: (B)(6) 2011. DOR: (B)(6) 2013. RIGHT KNEE.
Patient problems: Unspecified Infection
MAUDE report 16059914 ↗InjuryJun 14, 2021Adverse Event Without Identified Device or Use Problem; Osseointegration Problem; Adverse Event Without Identified Device or Use Problem; Osseointegration Problem
1.IT WAS INDICATED IN THE EVENT DESCRIPTION THAT ALL COMPONENTS APPEARED WELL FIXED BUT IT ALSO STATED THAT, "THERE WAS LITTLE IF ANY BONEY INGROWTH INTO THE POROUS COATING" WHEN THE FEMUR WAS REMOVED. PLEASE CLARIFY IF THERE WAS LOOSENING INVOLVED IN THIS EVENT. ANSWER: THE FEMORAL COMPONENT APPEARED WELL FIXED AND WAS NOT OVERTLY LOOSE ¿ NO MOVEMENT WAS DETECTED ¿ WHEN THE SURGEON WORKED AROUND THE FEMUR TO FREE THE FEMORAL COMPONENT ¿ THE FEMUR FINALLY WAS REMOVED AND THE UNDERSIDE OF THE FEMUR EXAMINED ¿ THE POROCOAT DID NOT SHOW ANY SIGNS OF BONEY INGROWTH, BUT RATHER A FIBROUS TISSUE INGROWTH ¿ SO I CAN ASSUME THEN THAT THE FEMUR MY HAVE BEEN LOOSE FROM THE TIME OF THE ORIGINAL INDEX REVISION AND THAT THE FIBROUS TISSUE INGROWTH WAS THE RESULT! 2. IT WAS REPORTED THAT THE KNEE HAS BEEN SCOPED IN THE PAST AND THAT SAMPLES WERE TAKEN. PLEASE VERIFY IF ANY OF THE PRODUCTS WERE REVISED/EXPLANTED DURING THIS EVENT. ANSWER: NO, NO IMPLANTS WERE REVISED AND AT THIS STAGE, AND I WAS NOT MADE AWARE OF THE SCOPE PROCEDURE. 3. WAS THE CEMENT PRODUCT MANUFACTURED BY DEPUY? IF YES, PLEASE PROVIDE THE QUANTITY, PART AND LOT NUMBERS OF THE CEMENT. ANSWER: NO, THE CEMENT WAS NOT A DEPUY PROD
Patient problems: Adhesion(s); Inadequate Osseointegration; Joint Laxity; Loss of Range of Motion; Pain; Swelling/ Edema
MAUDE report 11995832 ↗InjuryMay 24, 2021Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
SUBJECT ID: (B)(6). STUDY: DOTS. CLINICAL ADVERSE EVENT RECEIVED FOR RIGHT KNEE RUPTURE OF PATELLAR TENDON. EVENT NOT SERIOUS AND IS CONSIDERED SEVERE. EVENT IS DEFINITELY NOT RELATED TO DEVICE AND THERE IS A REMOTE POSSIBILITY IT IS RELATED TO PROCEDURE. DATE OF IMPLANTATION: (B)(6) 2021. DATE OF EVENT (ONSET): (B)(6) 2021. (RIGHT KNEE). TREATMENT: AWAITING SURGICAL INTERVENTION. MEDICAL RECORDS RECEIVED WERE REVIEWED TO IDENTIFY PATIENT HARMS/PRODUCT ISSUES. ON (B)(6) 2021, THE PATIENT UNDERWENT A PRIMARY RIGHT KNEE ARTHROPLASTY DUE TO OSTEOARTHRITIS WITH SEVERE VARUS DEFORMITY. DEPUY PFC SIGMA ROTATING PLATFORM KNEE WAS IMPLANTED WITH DEPUY CEMENT. THERE WERE NO INDICATED INTRA-OPERATIVE COMPLICATIONS. ON 3 MAY 2021, THE PATIENT UNDERWENT A RIGHT KNEE REVISION TO ADDRESS PAIN, SWELLING, EFFUSION, DIFFICULTY WALKING, BRUISING, INSTABILITY, WITH BLEEDING AND ECCHYMOSIS DEVELOPING. IT WAS INDICATED TWO DAYS PRIOR, THE PATIENT WAS GOING DOWN A LADDER AND MISSED THE RUNG WITH HIS LEFT FOOT, CAUSING A HYPERFLEXION EPISODE TO THE RIGHT KNEE AND RESULTING IN AN ACUTE PATELLAR TENDON DISRUPTION. THE SURGEON NOTED THE ABSENCE OF THE PATELLAR TENDON AND HIS KNEECAP WAS IN THE PATELLAR ALTA
Patient problems: Ambulation or Postural Difficulties; Hemorrhage/Blood Loss/Bleeding; Joint Laxity; Muscle/Tendon Damage; Pain; Swelling/ Edema
MAUDE report 11871035 ↗InjuryJan 23, 2020Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
CLINICAL ADVERSE EVENT RECEIVED FOR ILEUS, GASTROINTESTINAL : HOSPITALIZED 4-5-WEEKS COLECTOMY AND ILEOSTOMY. EVENT IS SERIOUS AND IS CONSIDERED SEVERE. EVENT IS DEFINITELY NOT RELATED TO DEVICE AND IS POSSIBLY RELATED TO PROCEDURE. DATE OF IMPLANTATION: (B)(6) 2019; DATE OF EVENT (ONSET): (B)(6) 2019; (RIGHT KNEE).
Patient problems: No Code Available
MAUDE report 9623707 ↗InjuryJun 3, 2019Loss of Osseointegration; Loss of Osseointegration
THE PATIENT WAS REVISED TO ADDRESS TIBIAL SUBSIDENCE AND LOOSENING OF THE FEMORAL COMPONENT AT THE BONE TO IMPLANT INTERFACE. FULL DEPUY SIGMA REVISION WAS RE-IMPLANTED. NO PARTS WERE BROKEN DURING THE SURGERY. DOI: UNKNOWN. DOR: (B)(6) 2019. RIGHT KNEE.
Patient problems: Inadequate Osseointegration; No Code Available
MAUDE report 8662354 ↗InjuryJul 5, 2018Loss of Osseointegration; Loss of Osseointegration
THE PATIENT WAS REVISED TO ADDRESS INFECTION AND LOOSENING OF THE FEMORAL COMPONENT AT THE BONE TO IMPLANT INTERFACE. ALL IMPLANTS WERE REMOVED. DOI: (B)(6) 2017; DOR: (B)(6) 2018; RIGHT KNEE.
Patient problems: Inadequate Osseointegration; Unspecified Infection
MAUDE report 7663791 ↗
Other PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER devices
- ATTUNE 1512-14-050Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER106 reports
- ATTUNE 1504-40-205Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall53 reports
- ATTUNE 1504-40-105Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall46 reports
- ATTUNE 1547-06-001Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall37 reports
- ATTUNE 1513-12-060Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER72 reports
- Triathlon 5531-G-709-EHowmedica Osteonics Corp. · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall19 reports
- Triathlon 5521-B-300Howmedica Osteonics Corp. · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall19 reports
- Triathlon 5531-G-610-EHowmedica Osteonics Corp. · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall16 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 16, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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