• Brent P Hansen, Charles L Beck, Elizabeth P Beck, and Robert W Townsley.
• Advanced Joint Care and Orthopedic Sports Medicine, 4344 West Bell Road, Suite 102, Glendale, AZ 85308, USA. orthoboy1do@yahoo.com
• Am J Sports Med. 2007 Oct 1; 35 (10): 1628-34.

BackgroundRecent reports have noted the appearance of postarthroscopic glenohumeral chondrolysis. Although this devastating process has been identified, no cause has been directly identified.HypothesisA cause of postarthroscopic glenohumeral chondrolysis will be associated with a specific factor (ie, implanted device, surgical technique, etc), and this factor can be identified by a review and comparison of cases seen in the senior author's office.Study DesignCase series; Level of evidence, 4.MethodsAnalyze possible etiologic factors with imaging studies, demographics, history, and physical examinations of 10 patients (12 shoulders) with postarthroscopic glenohumeral chondrolysis, and then compare perisurgical information with a focused chart review and comparison with the rest of the 177 arthroscopic shoulder surgeries in the same period of time.ResultsThere were 12 cases of postarthroscopic glenohumeral chondrolysis (all were the senior author's patients). Four common factors were identified, and only high-flow intra-articular pain pump catheters filled with bupivacaine and epinephrine were a new addition to years of shoulder surgery by the senior author; 177 shoulders underwent arthroscopy in the identified time frame, and only 19 shoulders, of 30 with capsular procedures, had intra-articular pain pump catheters filled with bupivacaine and epinephrine. Of these, 12 have been identified with chondrolysis.ConclusionUse of intra-articular pain pump catheters eluting bupivacaine with epinephrine appear highly associated with postarthroscopic glenohumeral chondrolysis.Clinical RelevanceIntra-articular pain pump catheters, especially those eluting bupivacaine with epinephrine, should be avoided until further investigation.

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