UNKNOWN LINER
Report
- Report Number
- 0009613350-2025-00299
- Event Type
- Injury
- Date Received
- April 15, 2025
- Report Date
- April 15, 2025
- Manufacturer
- ZIMMER GMBH
- Product Code
- LZO
- Adverse Event
- Yes
- Product Problem
- Yes
- Report Source
- Manufacturer report
- Reporter Location
- CA
- Reporter Occupation
- PHYSICIAN
- Health Professional
- Yes
Narratives
(B)(4): D6A. IMPLANT DATE: BETWEEN (B)(6) 2007 AND(B)(6) 2018. D10: ITEM # UNKNOWN, UNKNOWN HEAD, LOT # UNKNOWN. G2. REPORT SOURCE: CANADA. NO PRODUCT WAS RETURNED OR PICTURES PROVIDED; A PRODUCT EVALUATION COULD NOT BE PERFORMED. A REVIEW OF THE DEVICE MANUFACTURING RECORDS COULD NOT BE PERFORMED DUE TO MISSING LOT NUMBER. A REVIEW OF THE COMPLAINT HISTORY COULD NOT BE PERFORMED DUE TO MISSING REFERENCE AND LOT NUMBERS. BASED ON THE AVAILABLE INFORMATION, THE REPORTED EVENT CAN BE CONFIRMED. JOURNAL ARTICLE REPORTS THAT 46-YEAR-OLD FEMALE PATIENT WHO DISLOCATED AT 2 MONTHS POST-OP AND UNDERWENT REVISION SURGERY TO INCREASE FEMORAL HEAD OFFSET. NO ADDITIONAL COMPLICATIONS WERE REPORTED. THE INVESTIGATION FOCUSED ON THE JOINT DISLOCATION AND SUBSEQUENT REVISION SURGERY. A DEFINITIVE ROOT CAUSE CANNOT BE ESTABLISHED. ''LITERATURE: THE WAGNER CONE STEM FOR ATYPICAL FEMORAL ANATOMY IN TOTAL HIP ARTHROPLASTY. B. KAYANI, MICHAEL E. NEUFELD, M. BAUTISTA, L. C. HOWARD, M. ABDELMALEK, N. V. GREIDANUS, B. A. MASRI, D. S. GARBUZ. THE JOURNAL OF BONE AND JOINT SURGERY. PAGES (1-19).2024. HTTP://DX.DOI.ORG/10.2106/JBJS.23.00849''.
ON 17 MAR 2025, A JOURNAL ARTICLE WAS RETRIEVED FROM THE JOURNAL OF BONE AND JOINT SURGERY, INC. 2024 THAT REPORTED A STUDY FROM CANADA. THE PURPOSE OF THE STUDY WAS TO DETERMINE THE IMPLANT SURVIVORSHIP, PATIENT SATISFACTION, FUNCTIONAL OUTCOMES, OSSEOINTEGRATION AS SEEN RADIOGRAPHICALLY, IMPLANT SUBSIDENCE, AND COMPLICATIONS OF THA USING THE WAGNER CONE PROSTHESIS STEM AT INTERMEDIATE-TERM FOLLOW-UP. THE RETROSPECTIVE STUDY REVIEWED 302 PATIENTS WHO UNDERWENT A TOTAL OF 320 PRIMARY THAS USING THE WAGNER CONE PROSTHESIS BETWEEN JULY 2007 - FEBRUARY 2018. THE INDICATION FOR SURGERY WAS PROXIMAL FEMORAL DEFORMITIES, INCLUDING DEVELOPMENTAL HIP DYSPLASIA AND LEGG-CALVE-PERTHES DISEASE. THE STUDY POPULATION HAD A MEAN AGE OF 49.4 YEARS AT TIME OF SURGERY (RANGE 18.8-85.6); (NUMBER OF MALES/FEMALES). FOLLOW-UP WAS CONDUCTED POSTOPERATIVELY AT 6 WEEKS, 1 YEAR, AND THE TIME OF FINAL FOLLOW-UP WITH A MEAN LENGTH OF FOLLOW-UP FOR 10.1 YEARS (RANGE 5.2-15.5). IT WAS REPORTED THAT PATIENT UNDERWENT HIP REVISION APPROXIMATELY 2 MONTHS POST IMPLANTATION DUE TO A DISLOCATION. ATTEMPTS HAVE BEEN MADE AND ADDITIONAL INFORMATION ON THE REPORTED EVENT IS UNAVAILABLE AT THIS TIME.
Devices
| Seq | Brand | Generic | Product Code | Manufacturer | Model | Lot | UDI-DI |
|---|---|---|---|---|---|---|---|
| 112952 | UNKNOWN LINER | PROSTHESIS, HIP | LZO | ZIMMER GMBH | UNKNOWN |
Patients
| Seq | Age | Sex | Outcome | Treatment |
|---|---|---|---|---|
| 1 | 46 YR | Female | Required Intervention| H | SEE H11 NARRATIVE. |