inforMED
MalfunctionHSH

I TOTAL

Received Aug 28, 2012 · Event occurred Jul 1, 2012

Report 3004153240-2012-00070 · MDR key 2729487

Device

Generic name

Total Knee Replacement System

Manufacturer

Conformis, Inc.

Catalog number

M57250600020

Product problems

  • Break

Patient

61 YR

  • No Information

Narrative

Description of Event or Problem

THE TAB THAT IS PART OF THE LOCKING MECHANISM ON THE LATERAL A POLY INSERT WAS DAMAGED DURING SURGERY. THE LATERAL B POLY INSERT WAS IMPLANTED. THE LATERAL B INSERT IS 1 MM THICKER THAN THE LATERAL A INSERT.

Additional Manufacturer Narrative

THE TAB THAT IS PART OF THE LOCKING MECHANISM ON THE LATERAL A POLY INSERT WAS DAMAGED DURING SURGERY. THE LATERAL B POLY INSERT WAS IMPLANTED. THE LATERAL B INSERT IS 1 MM THICKER THAN THE LATERAL A INSERT. REVIEW OF THE DEVICE HISTORY RECORD INDICATES THAT THE DEVICE WAS MANUFACTURED TO SPECIFICATION. DEVICE EVAL: THE A LATERAL INSERT WAS RETURNED FOR EVAL. EXAMINATION OF THE RETURNED A LATERAL INSERT CONFIRMS 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.

Remedial action

  • Notification