CONSERVE® 38AM4000Recalls & reported problems
Microport Orthopedics Inc. · CONSERVE® A-CLASS® BFH® HEAD MEDIUM NECK 40MM · Class 3 · Implant
- Adverse event reports
- 6
- Deaths reported
- 0
- Injuries reported
- 6
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 6 adverse event reports that list this exact device (DI M68438AM40001), received between Jul 2, 2019 and Dec 10, 2025 — classified as 6 injuries.
The most frequently reported specific device problem is “Insufficient Device Problem Information” (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. How this data works · Data updated Oct 13, 2026.
Reports received per month
Most reported problems
Device problems
- Insufficient Device Problem Information2
- Material Disintegration2
- Appropriate Device Problem Term/Code Not Available1
- Corroded1
Patient problems
- Metal Related Pathology3
- Loss of Range of Motion2
- Pain2
- Reaction2
- Insufficient Information1
- No Clinical Signs, Symptoms or Conditions1
Recent adverse event reports
The 6 most recent of 6 reports, in the reporter's own words as published by the FDA.
InjuryDec 10, 2025Insufficient Device Problem Information; Insufficient Device Problem Information
ALLEGEDLY, PATIENT HAD A MOD Z STEM & NECK, DYNASTY METAL ON METAL ACETABULUM. SURGEON WANTED TO REMOVE THE METAL ON METAL (MOM) INCLUDING THE STEM. HE RETAINED THE DYNASTY SHELL. INSERTED A DUAL MOBILITY LINER AND INSERT. HE REPLACED THE STEM WITH A ZIMMER REVISION STEM AND 28MM CERAMIC HEAD.
Patient problems: Metal Related Pathology; No Clinical Signs, Symptoms or Conditions
MAUDE report 23768615 ↗InjuryAug 4, 2023Insufficient Device Problem Information; Insufficient Device Problem Information
ALLEGEDLY, THE PATIENT HAD A WRIGHT MEDICAL HIP IMPLANTED ON (B)(6) 2011. SHE STATED THAT SHE HAD GONE BACK TO THE DOCTOR OVER THE YEARS AND WAS TOLD SHE HAD NO ISSUES AND RECENTLY FOUND OUT SHE HAD METALLOSIS. ADDITIONAL INFORMATION RECEIVED ON 2023-07-11. THE PATIENT IS ALLEGING PAIN, CAN'T WALK, ELEVATED BLOOD COBALT THAT IS AFFECTING HER OTHER ORGANS. AS OF THIS DATE SHE HAS NOT BEEN REVISED.
Patient problems: Loss of Range of Motion; Metal Related Pathology; Pain
MAUDE report 17461224 ↗InjuryJun 2, 2023Corroded; Corroded
ALLEGEDLY, COMPONENTS REVISED DUE TO CORROSION.
Patient problems: Insufficient Information
MAUDE report 17049605 ↗InjuryAug 31, 2020Material Disintegration; Material Disintegration
ALLEGEDLY, PATIENT UNDERWENT A LEFT TOTAL HIP REPLACEMENT AND RECEIVED A METAL ON METAL HIP SYSTEM IMPLANTS. PATIENT SUFFERED PAIN, DEBILITATING LACK OF MOBILITY, AND HIGH LEVELS OF TOXIC METAL LEVELS. ADDITIONAL INFORMATION RECEIVED ON 08/11/2021 FROM LEGAL DEPARTMENT: ADDING REVISION SURGERY DATE FOR RIGHT HIP ON (B)(6) 2020).
Patient problems: Loss of Range of Motion; Metal Related Pathology; Pain
MAUDE report 10474403 ↗InjuryMar 23, 2020Appropriate Device Problem Term/Code Not Available
ALLEGEDLY, PATIENT WAS REVISED DUE TO METAL ON METAL COMPLICATIONS.
Patient problems: Reaction
MAUDE report 9869257 ↗InjuryJul 2, 2019Material Disintegration; Material Disintegration
ALLEGEDLY THE PATIENT WAS REVISED DUE TO MOM COMPLICATIONS: METALLOSIS; PSEUDO-TUMOR. (LEFT). LINER AND HEAD WERE REMOVED AND REPLACED WITH A CERAMIC HEAD AND POLY LINER (36MM).
Patient problems: Reaction
MAUDE report 8754945 ↗
Other Prosthesis, Hip, Semi-Constrained (Metal Uncemented Acetabular Component) devices
- BIOLOX DELTA 1365-32-730Depuy Orthopaedics, Inc. · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)93 reports
- RingLoc® Hip System 103531Biomet Orthopedics, LLC · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)1 recall0 reports
- BIOLOX DELTA 1365-28-710Depuy Orthopaedics, Inc. · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)43 reports
- ASPHERE 1365-52-100Depuy (Ireland) · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)39 reports
- ASPHERE 1365-05-100Depuy (Ireland) · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)29 reports
- ASPHERE 1365-06-100Depuy (Ireland) · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)29 reports
- Taperloc Complete Micro Primary Femoral 51-107130Biomet Orthopedics, LLC · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)23 reports
- Taperloc Complete Micro Primary Femoral 51-107120Biomet Orthopedics, LLC · Prosthesis, hip, semi-constrained (metal uncemented acetabular component)19 reports
Sources: FDA GUDID, MAUDE and Medical Device Recalls via openFDA. openFDA data is not validated for clinical or regulatory use.