Beasley, Allen, Crow, Methvin, Portis & Miles, P.C.

Much has been reported lately about chondrolysis of the shoulder, or Postarthroscopic Glenohumeral Chondrolysis (PAGCL). So what is chondrolysis and why is it getting so much face time? Chondrolysis is the destruction of the cartilage in a joint. It is generally a rare condition anywhere in the body, but it has been most often heard of in hip joints most often from birth defects. Before the 1990s, chondrolysis in the shoulder was never seen.

But beginning in the 1990s, orthopedic surgeons began seeing more and more patients who were complaining of limited range of mobility, pain and stiffness in their shoulder. Tests showed the cartilage was beginning to or had completely worn away causing bone to rub against bone, also known as chondrolysis. Doctors were baffled.

What they soon discovered is that all the patients who were developing or had developed chondrolysis had had shoulder surgery during which a pain pump was used to deliver anesthetics for 48 to 72 hours following surgery. The pain pumps were a new offering for surgeons who previously prescribed IV or oral painkillers to patients to help deaden the pain of shoulder surgery.

Pain pumps are balloon-like devices filled with anesthetic that rests outside the body. The anesthetic is administered directly into the joint space through a catheter, which is removed after the medication has been used. Pain pump manufacturers were quick to promote this new use of pain pumps to doctors in the 1990s even though the use was never approved by the Food and Drug Administration (FDA).

What doctors didn’t realize at the time is that the pain pumps, which dripped medicine directly into the joint space, were causing the cartilage in the shoulder to wear away. Doctors soon made the connection between pain pumps and shoulder chondrolysis. Last year, after studies on shoulder chondrolysis had been published in several medical journals, the FDA issued a warning to doctors informing them that pain pumps should not be used during shoulder surgery and that this use has never been approved by the agency.

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