MAUDE Adverse Event Report: KERI MEDICAL SA TOUCH® - CMC1 PROSTHESIS; TOUCH® - CMC1 PROSTHESIS SPHERICAL CUP Ø9MM / OFFSET NECK 15° - 6MM - S

Model Number	CTO09 / NTO156
Medical Device Problem Codes	Loss of Osseointegration (2408); Migration (4003)
Health Effect - Clinical Codes	Osteolysis (2377); Metal Related Pathology (4530); Implant Pain (4561)
Date of Event	02/27/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The reported event could be confirmed since the affected device was returned for investigation.After a thorough investigation (returned device, device history review record, medical imaging, complaint history review and surgeon assessment), it appears that the failure is primarily related to osteolysis.The progressive bone loss likely compromised the support of the implant, which in turn led to cup unsealing.Osteolysis is listed as a probable adverse effect in the device ifu, and therefore is an anticipated potential outcome.The identified root cause represents the most likely explanation based on current evidence and does not constitute definitive proof of causality.
Event or Problem Description
It was reported that a patient underwent total joint arthroplasty of touch cmc1 prosthesis on (b)(6) 2025.Subsequently, the patient reported pain and osteolysis was observed on x-ray.The patient underwent a revision surgery on (b)(6) 2026; the surgeon removed bone from the trapezium and positioned the new cup at a deeper level.Metallosis was present in trapezium.

• Brand Name: TOUCH® - CMC1 PROSTHESIS
• Common Device Name: TOUCH® - CMC1 PROSTHESIS SPHERICAL CUP Ø9MM / OFFSET NECK 15° - 6MM - S
• Manufacturer (Section D): KERI MEDICAL SA; chemin du pre-fleuri 5; plan-les-ouates, 1228 ; SZ 1228
• Manufacturer (Section G): KERI MEDICAL FRANCE; 34 rue antoine redier; archamps, 74160 ; FR 74160
• Manufacturer Contact: camille miletto ; chemin du pre-fleuri 5; plan-les-ouates, 1228 ; SZ 1228
• MDR Report Key: 24899120
• Report Number: 3024706750-2026-00028
• Device Sequence Number: 12952797
• Product Code: SFA
• UDI-Device Identifier: 07640181160075
• UDI-Public: 07640181160075
• Combination Product (Y/N): N
• Initial Reporter Country: BE
• PMA/510(K) Number: P240020
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Company Representative
• Initial Reporter Occupation: Physician
• Remedial Action: Replace
• Type of Report: Initial
• Report Date (Section B): 04/14/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Model Number: CTO09 / NTO156
• Device Catalogue Number: CTO09 / NTO156
• Device Lot Number: 5961 / 8706
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/02/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/26/2026
• Initial Report FDA Received Date: 04/16/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 63 YR
• Patient Sex: Male