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Infected unstable Charcot ankle neuroarthropathy, any hope before amputation? A prospective study.
International Orthopaedics 2022 July
BACKGROUND: Charcot neuroarthropathy is a destructive disease characterized by progressive bony fragmentation as a result of the isolated or accumulative trauma in patients with decreased sensation that manifests as dislocation, periarticular fractures, and instability. In this study, we present the results of salvage procedure of the ankle Charcot neuroarthropathy using aggressive debridement and Ilizarov frame fusion with early weight bearing.
METHODS: Twenty-three patients with severely infected ulcerated and unstable Charcot neuroarthropathy of the ankle were treated between 2013 and 2018. The mean age was 63.5 ± 7.9 years; 16 males and seven females. Aggressive open debridement of ulcers and joint surfaces, with talectomy in some cases, was performed followed by external fixation with an Ilizarov frame along with early weight-bearing. The primary outcome was a stable plantigrade infection-free foot and ankle that allows weight-bearing in accommodative footwear.
RESULTS: Limb salvage was achieved in 91.3% of cases at the end of a mean follow-up time of 19 months (range: 17-29). Fifteen (71.4%) solid bony unions evident clinically and radiographically were achieved, while six (28.5%) patients developed stable painless pseudarthrosis. Two patients had below-knee amputations due to uncontrolled infection.
CONCLUSION: Aggressive debridement and arthrodesis using ring external fixation can be used successfully to salvage severely infected Charcot arthropathy of the ankle. Pin tract infection, delayed wound healing, and stress fracture may complicate the procedure but can be easily managed. Amputation may be the last resort in uncontrolled infection.
METHODS: Twenty-three patients with severely infected ulcerated and unstable Charcot neuroarthropathy of the ankle were treated between 2013 and 2018. The mean age was 63.5 ± 7.9 years; 16 males and seven females. Aggressive open debridement of ulcers and joint surfaces, with talectomy in some cases, was performed followed by external fixation with an Ilizarov frame along with early weight-bearing. The primary outcome was a stable plantigrade infection-free foot and ankle that allows weight-bearing in accommodative footwear.
RESULTS: Limb salvage was achieved in 91.3% of cases at the end of a mean follow-up time of 19 months (range: 17-29). Fifteen (71.4%) solid bony unions evident clinically and radiographically were achieved, while six (28.5%) patients developed stable painless pseudarthrosis. Two patients had below-knee amputations due to uncontrolled infection.
CONCLUSION: Aggressive debridement and arthrodesis using ring external fixation can be used successfully to salvage severely infected Charcot arthropathy of the ankle. Pin tract infection, delayed wound healing, and stress fracture may complicate the procedure but can be easily managed. Amputation may be the last resort in uncontrolled infection.
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