MAUDE Adverse Event Report: ZIMMER BIOMET, INC. Z1 HO COL CMTLESS SZ 7; PROSTHESIS, HIPS

Model Number	N/A
Medical Device Problem Code	Positioning Failure (1158)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	08/26/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(4).Suggested component code: mechanical (g04) - stem.Customer has indicated that the product will not be returned to zimmer biomet for investigation.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.
Event or Problem Description
It was reported the z1 stem was perched and is a repeated event.The surgeon feels the stem to broach ratio is inaccurate regarding the pps coating.The z1 coating is too thick and does not allow for true seating of the broach.No known impact or consequence to the patient.
Additional Manufacturer Narrative
This follow-up report is being submitted to relay additional information.The following sections were updated: b4, b5, d4, g3, g6, h2, h3, h4, h6, h11.The reported event was confirmed by review of x-rays.Radiographs were provided and reviewed by a health care professional.Review of the available records identified the following: intraoperative imaging during total hip arthroplasty.The images show a small gap between the proximal femoral metaphysis at the osteotomy site and collar of the femoral stem.The device history record was reviewed and no discrepancies relevant to the reported event were found.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
Event or Problem Description
Attempts have been made and no further information has been provided.

• Brand Name: Z1 HO COL CMTLESS SZ 7
• Common Device Name: PROSTHESIS, HIPS
• Manufacturer (Section D): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• Manufacturer (Section G): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• Manufacturer Contact: jennifer rapsavage ; 56 e. bell dr.; warsaw, IN 46582 ; 5745260384
• MDR Report Key: 23094962
• Report Number: 0001822565-2025-03496
• Device Sequence Number: 9347250
• Product Code: LZO
• UDI-Device Identifier: 00887868575655
• UDI-Public: (01)00887868575655(17)300121(10)ZB2400446
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: K233476
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 01/13/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Model Number: N/A
• Device Catalogue Number: 611202070
• Device Lot Number: ZB2400446
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/26/2025
• Supplement Date Received by Manufacturer: 01/02/2026
• Initial Report FDA Received Date: 09/19/2025
• Supplement Report FDA Received Date: 01/13/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 01/21/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Male