The notice to patients was part of a recent announcement by the FDA warning health care professionals of the a painful and debilitating condition known as chondrolysis reported in patients who have had surgery followed by continuously infused local anesthetics for 48 to 72 hours through a pain pump device. The anesthetics involved are marketed as bupivacaine, chlorprocaine, lidocaine, mepivacaine, procaine and ropivacaine.

While the local anesthetics are approved by the FDA as injections for the production of local or regional anesthesia or analgesia, the approved drug labels for local anesthetics do not include an indication for continuous intra-articular postoperative infusions or use of infusion devices, such as pain pump devices, or elastomeric pumps.

Chondrolysis was diagnosed within a median of 8.5 months after infusion. Almost all of the reported cases (97 percent) occurred following shoulder surgeries. Joint pain, stiffness and loss of motion were reported as early as the second month after receiving the infusion. In more than half of these reports, the patients required additional surgery, including arthroscopy or arthroplasty, also known as joint replacement.

The numerous reported cases of chondrolysis following use of intra-articular infusion with local anesthetics has prompted the FDA to require the drug manufacturers to update their product labels to warn healthcare professionals about the potential serious adverse effect.

SOURCE: Pain Pumps › Orthopedic surgery patients urged to monitor symptoms