FDA Adverse Event Injury Summary report: N

UNKNOWN LINER

MDR report key: 21838835 · Received April 15, 2025

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

Additional Manufacturer Narrative · 0

(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''.

Description of Event or Problem · 0

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.