Abstract
Introduction
The primary goal of treatment of an ankle fracture is to obtain a stable anatomic fixation to facilitate early mobilisation and good functional recovery. However, the need for open reduction and internal fixation must be weighed against poor bone quality, compromised soft tissues, patient co-morbidities and potential wound-healing complications.
Materials and Methods
We reviewed two matched groups of 18 patients each, who underwent fixation for unstable Weber-B ankle fractures with intramedullary fibular nail (Group 1) and Standard AO semi-tubular plate osteo-synthesis technique (Group 2) to achieve fracture control and early mobilisation. Clinical and radiological fracture union time, and the time at mobilisation with full weight bearing on the ankle were used as outcome measures.
Results
The mean age of patients in both the groups was 53.6 yrs and 55.5 yrs respectively. The mean follow-up period was 5.4 months (Group 1) and 6.9 months (Group 2) before discharge. Clinical and radiological union was achieved earlier in patients treated with intramedullary fibular nail (7.3 weeks & 8.7 weeks respectively) compared with plate osteo-synthesis treatment (8.2 weeks & 9.8 weeks respectively) and this was statistically insignificant (p=0.66 & p=0.54 respectively).
Patients achieved full weight bearing at 8.4 weeks in nailing group compared to 8.2 weeks in plate osteo-synthesis group (p=0.40). One patient in the plate osteo-synthesis group had wound infection, requiring removal of hardware after fracture union. There were no wound complications in the nailing group.
Conclusion
Open reduction and internal fixation with the use of plates and screws based on the AO osteo-synthesis technique remains gold standard for treatment of ankle fracture. Advantages of fibular nail include a minimally invasive procedure with respect to fracture biology, feasibility of its use in compromised soft tissue states and negligible wound healing complications and can be used as a viable alternative.
