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COMPLICATIONS OF SEPTIC ARTHRITIS IN THE ELDERLY



Abstract

Aim: An epidemiological analysis of spontaneous community acquired septic arthritis cases in an elderly population at a university teaching hospital

Method: We studied confirmed cases of spontaneous septic arthritis in the over 65 population. Patients with prosthetic joint infections were excluded from the study. We analysed data relating to initial presenting complaint and clinical examination, haematological and microbio-logical tests along with ultimate patient outcome.

Results: There were 7 confirmed cases of spontaneous septic arthritis in over 65 population in the last 6 months (2 hips, 5 knees). The mean age was 72.14 (range 65–82) with a mean length of stay of 49 days. Those with septic arthritis of the knee presented with swelling, pain and immobility. Hip cases presented with pain and immobility. All patients were systemically well at time of presentation, with no other foci of infection detected after septic screening. All patients had aspirate and arthroscopic/arthrotomy confirmed infection. Staphylococcus Aureus was isolated from 6 joint aspirations and Pseaudomonas Auruginosa from one patient. Complications of treatment included acute renal failure, cardio/respiratory failure, disseminated infection and death (1 case).

Conclusion: Septic arthritis must be considered as a differential diagnosis in all patients with joint pain, swelling and immobility. This diagnosis is not confined to the paediatric population. A backround of degenerative disease and the occult presentation in the elderly may delay diagnosis. Sepsis must be considered in the elderly with joint pathology, with treatment initiated in a prompt and aggressive manner to prevent the sequelae that ensues.

Correspondence should be addressed to Mr Richard Wallace at Musgrave Park Hospital, 20 Stockman’s Lane, Belfast BT9 7JB, Northern Ireland.