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DEEP INFECTION AFTER ROTATOR CUFF REPAIR



Abstract

Purpose: Currently, there is little information available concerning the outcome of patients with infection following rotator cuff repair. Therefore, the purpose of this study was to review the incidence, management and outcomes of patients with rotator cuff repair complicated with deep infection.

Methods: Between 1975 and 2003, 39 cases of deep infection following rotator cuff repair were identified. The medical records and radiographs were retrospectively examined. At a mean follow-up of 8.2 years, seven patients had died and two patients had been lost to follow-up leaving 30 cases for outcome evaluation.

Results: The incidence of deep infection after rotator cuff repairs that were performed at our institution was 0.43% (21 of 4886 cases). The mean interval from rotator cuff repair to the time of infection diagnosis was 49 days. ESR and C-reactive protein were elevated in only 60% and 50% of patients, respectively. Propionibacterium was the most common organism isolated, infecting 51% of cases. A mean of 3.3 surgical debridements were necessary for the eradication of infection. At final follow-up, mean active abduction was 121° and mean external rotation was 44°. The ASES score averaged 67 points and the Simple Shoulder Test score averaged 7.3 points.

Conclusions: The data from this study suggests that the eradication of deep infection following rotator cuff repair is possible, however, substantial functional limitations are not unusual. Additionally, the treating surgeon should be aware of the high incidence of Propionibacterium and the importance of allowing a minimum of seven days of culture to identify this organism.

Correspondence should be addressed to Cynthia Vezina, Communications Manager, COA, 4150-360 Ste. Catherine St. West, Westmount, QC H3Z 2Y5, Canada