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MANAGEMENT OF CHRONIC OSTEOMYELITIS – ROLE OF COMBINED TOPICAL NEGATIVE PRESSURE DRESSINGS AND LOCAL INSTILLATION OF ANTIBIOTIC SOLUTION



Abstract

One of the most challenging cases encountered by orthopaedic surgeons is chronic osteomyelitis. The mainstays of successful treatment include: radical debridement, stabilisation of the bone if necessary; control of infection and finally skin cover or closure.

Negative pressure dressings have been used for over 10 years in the treatment of acute and chronic wounds with recognised benefits. Topical negative pressure wound therapy with instillation of solution in the local area (VAC Instill Therapy System®) is a new device available in the armamentarium of a limb reconstruction surgeon. This device automatically delivers instillation fluid into the infected wound, where this fluid is held for a while before application of topical negative pressure. This cycle helps remove infectious material leading to clean closed moist environment for better wound healing.

Senior authors (MGD and SLR) have used this VAC Instill therapy in 10 cases of chronic osteomyelitis from April 2007 to November 2008. All patients have been included in this study. All patients had (thorough) bony and soft tissue debridement followed by application of VAC Instill therapy with local delivery of antibiotics.

All patients were male with mean age of 39 years (range 20–56 years). There were eight cases of tibial osteomyelitis, one distal radial and one calcaneal osteomyelitis. Most had mixed growth, with Staphylococcus being most common infecting organism. Average duration for VAC Instill therapy was 32 days (range 20–71 days). Average hospital stay was 33 days (range 15–85 days) and average time to wound closure was 39 days (range 19–90). There were two failures of treatment one later had Lautenbach procedure and other had below knee amputation.

We conclude that VAC Instill therapy is very successful in the management of chronic osteomyelitis. These are the only early results available in the literature. Further studies are needed to back these findings.

Correspondence should be addressed to BLRS c/o BOA, at the Royal College of Surgeons, 35–43 Lincoln’s Inn Fields, London, WC2A 3PE, England.