Management of the infected shoulder prosthesis: a retrospective analysis and review of the literature.
Experience with infected shoulder arthroplasty is limited. Treatment options are either one- or two-stage reimplantation, débridement with retention of the prosthesis, resection arthroplasty or arthrodesis. We retrospectively analysed ten patients with an infected shoulder prosthesis and evaluated the diagnostic and therapeutic management as well as the clinical outcome, assessed by the Constant score, Neer's criteria and the mean abduction ability. We identified an infecting organism before surgery in nine patients. Four patients were treated by two-stage exchange reimplantation, five by resection arthroplasty and one underwent serial débridement combined with vacuum-irrigation therapy. Infection was eradicated in all patients of this series. The mean Constant score in resected patients was 32.7, in patients treated by stage exchange 40.1 (no difference) and we measured 90 points in the patient with retention of the implant. In patients treated by resection arthroplasty, merely the mean abduction yielded a better result (63 vs 31°) than in patients treated by two-stage exchange-with the pain level being identical in both groups. Treatment of infected shoulder implants in patients who often have to deal with concomitant diseases remains unsatisfactory. Two-stage exchange procedures yielded only slightly better functional results than resection arthroplasty, which should be considered in cases of elderly or chronically ill patients because it offers good pain relief. Serial débridement combined with irrigation therapy is a new method which offers good clinical results, however with an unknown risk of persisting infection. The authors recommend isolating the infecting organism prior to surgery to allow the administration of organism-specific antibiotics as early as possible during surgery in order to efficiently eradicate the infection.
Weber
Patrick
P
Department of Orthopaedic Surgery, Campus Grosshadern, Ludwig-Maximilians-University Munich, Marchioninistr. 15, 81377, Munich, Germany.
Utzschneider
Sandra
S
Sadoghi
Patrick
P
Andress
Hans-Joachim
HJ
Jansson
Volkmar
V
Müller
Peter E
PE
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D019643:Arthroplasty, Replacement / Q000009:adverse effects*; D001419:Bacteria / Q000302:isolation & purification; D005260:Female; D006801:Humans; D008297:Male; D008826:Microbial Sensitivity Tests; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery; D019736:Prostheses and Implants; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000188:drug therapy / Q000382:microbiology; D012189:Retrospective Studies; D012785:Shoulder Joint / Q000382:microbiology / Q000473:pathology / Q000601:surgery*
D000900:Anti-Bacterial Agents
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