The aim of this study was to evaluate the diagnostic value of preoperative serum CRP, white blood cell count (WBC), percentage of neutrophils (%N), and neutrophil to lymphocyte ratio (NLR) when using the fracture-related infection (FRI) consensus definition. A cohort of 106 patients having surgery for suspected septic nonunion after failed fracture fixation were studied. Blood samples were collected preoperatively, and the concentration of serum CRP, WBC, and differential cell count were analyzed. The areas under the curve (AUCs) of diagnostic tests were compared using the z-test. Regression trees were constructed and internally cross-validated to derive a simple diagnostic decision tree.Aims
Methods
This is a retrospective study of survivors of
recent conflicts with an open fracture of the femur. We analysed
the records of 48 patients (48 fractures) and assessed the outcome.
The median follow up for 47 patients (98%) was 37 months (interquartile
range 19 to 53); 31 (66%) achieved union; 16 (34%) had a revision
procedure, two of which were transfemoral amputation (4%). The New Injury Severity Score, the method of fixation, infection
and the requirement for soft-tissue cover were not associated with
a poor outcome. The degree of bone loss was strongly associated
with a poor outcome (p = 0.00204). A total of four patients developed
an infection; two with This study shows that, compared with historical experience, outcomes
after open fractures of the femur sustained on the battlefield are
good, with no mortality and low rates of infection and late amputation.
The degree of bone loss is closely associated with a poor outcome. Cite this article:
We reviewed 13 patients with infected nonunion of the distal femur and bone loss, who had been treated by radical surgical debridement and the application of an Ilizarov external fixator. All had severely restricted movement of the knee and a mean of 3.1 previous operations. The mean length of the bony defect was 8.3 cm and no patient was able to bear weight. The mean external fixation time was 309.8 days. According to Paley’s grading system, eight patients had an excellent clinical and radiological result and seven excellent and good functional results. Bony union, the ability to bear weight fully, and resolution of the infection were achieved in all the patients. The external fixation time was increased when the definitive treatment started six months or more after the initial trauma, the patient had been subjected to more than four previous operations and the initial operation had been open reduction and internal fixation.
