inforMED
MalfunctionHSH

ITOTAL G2

Received Nov 7, 2012 · Event occurred Oct 1, 2012

Report 3004153240-2012-00100 · MDR key 2877477

Device

Generic name

Total Knee Replacement System

Manufacturer

Conformis

Catalog number

M57250600010

Product problems

  • Device Operates Differently Than Expected

Patient

84 YR

  • No Known Impact Or Consequence To Patient

Narrative

Description of Event or Problem

THE LATERAL A TIBIAL POLY INSERT DID NOT LOCK INTO THE TIBIAL TRAY DURING THE PROCEDURE. THE LATERAL B POLY INSERT WAS IMPLANTED SUCCESSFULLY. THE LATERAL B POLY INSERT IS 1MM THICKER THAN THE LATERAL A POLY INSERT.

Additional Manufacturer Narrative

REVIEW OF THE DEVICE HISTORY RECORD INDICATES THAT THE DEVICE WAS MANUFACTURED TO SPECIFICATION. RETURNED DEVICE EVALUATION: THE LATERAL A POLY INSERT WAS RETURNED FOR EVALUATION. PHYSICAL EXAMINATION OF THE RETURNED INSERT SHOWED SIGNIFICANT DAMAGE TO THE SNAP FEATURE OF THE LOCKING MECHANISM. EXAMINATION INDICATES THAT THE POLY INSERT MAY NOT HAVE BEEN ALIGNED PROPERLY AT THE TIME OF IMPACTION DURING THE PROCEDURE. WITH THE INSERT DAMAGED IN THIS MANNER, IT IS LIKELY THAT THE INSERT WAS NOT ABLE TO LOCK INTO THE TRAY.