Intellijoint Navigation System, Software Application, IJK1 (P/N 000-0547) - Product Usage: The Intellijoint Navigation System is a computer-controlled, optical localizer intended to provide intra-operative measurements to a surgeon to aid in selection and positioning of orthopedic implant system components, where a reference to a rigid anatomical structure can be identified.

During total knee arthroplasty (TKA), the software may incorrectly calculate femur resection depth.

The firm notified the Intellijoint Surgical Sales Representatives that manage the affected sites. Communications were sent via email on 2/11/2020. Sales reps are responsible for verbally communicating the correction to affected users within their respective service areas. Users were to be advised of the following: (1) Until a Software update is provided, users should consult the Instructions for Use (Section 6.9.4 Lateral Femoral Condyle Definition (pg. 42) and Section 6.9.5 Medial Femoral Condyle Definition (pg. 42)) and follow the steps outlined for the acquisition of data used to calculate resection depth. (2) Resection depth should be verified by manual methods (calipers, angel wings etc.) for each case. (3) Due to the low risk and nature of the error, Intellijoint is not requesting that affected product be returned unless requested by the customer. Should the customer/user wish to return affected devices, please contact Sankavi Muralitharan ([email protected]) or Breanne Cuddington, Senior Regulatory Affairs Associate, at [email protected]; 1-888-232-2634 ex. 2234. A software update is under development to correct for this error. The expected release date for the update is February 29, 2020, at which time Intellijoint Sales Representatives will update all affected systems with the new software by March 30, 2020.