Abstract
BackgroundThe management of diabetic foot osteomyelitis (DFO) is complex. The targeted use of adjuvant local antibiotics, in the form of biocomposite bone void filler, in DFO, can enhance patient outcomes while minimising the adverse effects associated with systemic antibiotic therapy and its shortcomings.MethodsWe reviewed a series of 105 consecutive patients who underwent surgical management for diabetic foot osteomyelitis. In the NLAB group, (no adjuvant local antibiotic use), 49 patients, received the current standard of care treatment with no use of adjunctive local antibiotic therapy. In group LAB, (adjuvant use of local antibiotics), 56 patients received additional adjuvant local antibiotic therapy. Patient outcomes were compared between both groups.ResultsInfection healing was demonstrated in 10 (20.41%) patients from group NLAB and 41 (73.21%) from group LAB (p < 0.0001). Persistence of infection with no evidence of wound healing, 6 months from surgery, was observed in 15 (30.61%) patients in group NLAB. Among the LAB group, only 4 (7.14%) patients demonstrated infection persistence (p = 0.00183). Reinfection was observed in 24 of 49 patients in group NLAB (49%) and in only 11 out of 56 patients in group LAB (20%) (p = 0.001466). 7 (6.67%) patients required major amputation with 6 (12.24%) belonging to group NLAB. Only 1 (1.78%) patient in group LAB underwent major amputation. A higher 5-year mortality rate was noted within patients in group NLAB, 27 (55.1%). The mortality rate in group LAB was (12.5%).ConclusionThe adjuvant use of antibiotic loaded bio-composite bone void filler locally was associated with increased infection clearance rates regarding diabetic foot osteomyelitis when compared with the standard care of treatment while achieving lower rates of infection persistence and recurrence. It also has the potential to reduce amputation and mortality rates with further research.
Published Version
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