More than 600,000 knee replacements are performed each year in the United States. Unfortunately, thousands of knee replacement lawsuits alleging injuries from defective knee replacements are also filed across the country. Two devices commonly subject to a knee replacement lawsuit are the DePuy Attune and the Zimmer NexGen Implant.  For years, total knee replacements have been one of the most successful and life-enhancing surgical procedures. Almost 90% of patients who have the procedure report relief from pain, allowing them to return to a close-to-normal lifestyle.

Knee replacements are usually a last resort after a person has tried medications, corticosteroid injections or other non-invasive forms of treatment. For most, knee replacements become necessary when knee osteoarthritis progresses to a point where a person can no longer walk, climb stairs or even sit without pain.

Some of the most recent data concerning knee replacements show that the success rates are extremely high. Most statistics show that if you have a total knee replacement surgery today, there is a 90-95% chance that your implant will last 10 years, and an 80-85% chance that it will last up to 20 years.


The DePuy Synthes Attune Knee System is a total knee replacement solution that was approved by the FDA in 2013. Recently, however, there have been numerous adverse event reports made to the FDA concerning various problems with the device.

One of the most common issues involves the tibial plate loosening. The knee joint is formed where the thigh bone (femur) meets the shinbone (tibia). The tibial component (bottom portion) of a knee replacement prosthetic replaces the top surface of the lower bone (the tibia). In fact according to Orthopedic Design & Technology, “9 prominent orthopedic surgeons reported they have encountered an unusually high-rate of premature failures of the system.” (Orthopedic Design & Technology, September 9, 2017)
Our lawyers are investigating issues with loosening of the DePuy Synthes Attune Knee System’s tibial plate. Unfortunately, there have been many reports of the tibial plate coming loose within 6 months of having the surgery done, and many more within 2 years of the procedure. This causes extreme pain in the patient and will almost often require a revision surgery to be done with all or part of the original prosthesis having to be replaced.

Additionally, our lawyers are investigating issues with other manufactures of knee replacement. If you are having problems with your knee replacement, please give our office a call so that we can evaluation your matter.


The Zimmer NexGen Knee Implant was advertised as a product designed to accommodate resumption of high levels of activity. Unfortunately, as of July 2018, over 1,500 individual lawsuits have been filed against Zimmer. These lawsuits allege NexGen is defective due to loosening of the implant which often leads to knee replacement revision surgery.

Common Zimmer NexGen knee devices prone to failure include:

  • CR-Flex Porous Femoral Component
  • LPS-Flex Mobile and Bearing Knee
  • Complete Knee Solution LPS Flex Gender Femoral Component
  • Complete Knee Solution MIS Tibial Components
  • CR-Flex Knee Replacement
  • Complete Knee Solution LPS Femoral Component


When a patient is injured by a defective medical device, that patient is faced with the decision of whether or not to pursue a lawsuit. Our lawyers are here to help you make that decision and explain what your options are. If you have a viable case, our firm will represent you on a contingency fee basis meaning you don’t pay anything until we obtain compensation for you. Anyone that files a knee replacement lawsuit may receive compensation for the following:

  • Medical expenses
  • Loss of income due to extended recovery times
  • Loss of companionship with family members
  • Corrective surgery to either repair or replace the existing elbow implant
  • Pain and suffering
  • Emotional distress


Di Pietro Partners has an experienced staff of product liability lawyers who work with board certified medical professionals. If you or a loved one needs any assistance, please call our office today for a free consultation to explore your options. Our number is (800) 712-8462.