• Surgery · Oct 2008

    Use of human acellular dermal matrix for hernia repair: friend or foe?

    • Raymond Candage, Keith Jones, Fred A Luchette, James M Sinacore, Darl Vandevender, and R Lawrence Reed.
    • Divisions of General Surgery and Plastic Surgery, Department of Surgery, Stritch School of Medicine, Loyola University Medical Center, Maywood, IL 60153, USA.
    • Surgery. 2008 Oct 1; 144 (4): 703-9; discussion 709-11.

    BackgroundSurgeons continue to search for the ideal prosthetic material to repair complex abdominal wall hernias. Recently, a new biologic material was introduced into the surgeon's arsenal. The purpose of this study is to review a single institution's experience with the use of human acellular dermal matrix (HADM [AlloDerm]) for repair of hernias.MethodsThis was a retrospective review of all patients who received HADM for repair of an abdominal wall hernia. Patient demographics, comorbidities, wound contamination, operative technique, complications, and hernia recurrence were analyzed.ResultsBetween May 2004 and October 2007, HADM was implanted in a total of 46 patients undergoing repair of a ventral hernia. The average age was 54 years (range, 26-77), with an average American Society of Anesthesiologists classification of 2.5 (range, 1-4). Indications for use of HADM included complex ventral hernia repair (n = 34), mesh infection/enterocutaneous fistula (n = 10), and peritonitis (n = 2). The incidences of comorbidities were hypertension in 47%, diabetes mellitus in 16%, and coronary artery disease in 11%. The majority (87%; n = 40) of the procedures were performed on an elective basis. Seventeen procedures were performed in contaminated wounds. The HADM was placed as reinforcement to the hernia repair in 26 patients and as a "bridge" between the fascial edges in 20 patients. The average follow-up was 12.1 months. Wound complications were frequent at 54%. There were 6 recurrent hernias and 8 patients with eventration of the bioprosthesis so that the recurrent hernia rate was 30%. None of the recurrences were associated with a postoperative wound infection. The majority (88%) of patients who developed eventration of the HADM had a repair using the bioprosthesis to "bridge" an abdominal wall defect. Hernia recurrence and eventration were not associated with use of HADM in a contaminated/infected wound.ConclusionsHADM is a suitable prosthesis for repair of complex and routine abdominal wall defects. This bioprosthesis can incorporate into contaminated tissue without becoming infected. Eventration occurs when HADM is utilized as a fascial replacement rather than as a reinforcement.

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