The U.S Food and Drug Administration (FDA) is informing health care professionals of a Class I Recall of the M/L Taper with Kinectiv Technology Prosthesis by Zimmer. A process monitoring failure led to higher than expected amounts of manufacturing residues left on the Zimmer M/L Taper with Kinectiv Technology Femoral Stems and Necks. These residues can cause serious adverse health issues including allergic reactions, pain, infections, or death. Use of these products may require the need for a revision surgery to replace the affected implant.