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ANKLE FRACTURES IN THE GERIATRIC POPULATION: OPERATIVE OR NON-OPERATIVE TREATMENT



Abstract

Introduction: The optimal management of ankle fractures in the elderly is controversial, with wide variation in the complication rates reported in the literature. Achieving a satisfactory outcome is essential as reduced mobility exacerbates pre-existing morbidity and diminishes the likelihood of independent living. However, in elderly patients surgery carries increased risks due to osteoporosis, poor skin condition and decreased vascularity.

Methods: We performed a retrospective review of outcome and complications in patients over 70 years of age with ankle fractures. Patients were admitted for manipulation under anaesthetic and application of cast (MUA) or open reduction and internal fixation (ORIF). Data were retrieved from medical and nursing notes relating to pre-operative functioning, type of injury, operative procedure and outcome. All X-rays were also reviewed to confirm fracture grade and union.

Results: A total of 134 patients over the age of 70 were admitted for management of ankle fractures during January 1995 and December 2003 and 117 of these were included in the study. 84 were operatively treated for ankle fractures and a further 27 patients underwent MUA. The mean age in both groups was 76 and there was a female predominance in both groups (89% in MUA, 79% in ORIF). 14.8% of the conservatively managed group were nursing home residents compared to 2.4% of the operatively treated group. The groups were similar with respect to ASA grade and co-morbidities. The median length of stay was shorter for the conservatively managed group (4 vs. 6 days). 7.5% of the MUA group required a second intervention compared to 4.5% of the operatively managed group. There were two below knee amputations in the operatively managed group, both related to open fractures, and one arthrodesis in each group. There were three wound complications in the operatively managed group. The rate of postoperative medical complications was the same in both cohorts. 7.4% of patients treated with MUA and 1.1% of patients treated operatively had reduced mobility at final follow-up.

Conclusion: The decision-making process for treatment of ankle fractures in the geriatric population is challenging. We observed significantly better functional results in the ORIF group than the MUA group. These results indicate that open reduction and internal fixation of ankle fractures in geriatric patients is efficacious and safe in selected patients

The abstracts were prepared by Emer Agnew, Secretary to the IOA. Correspondence should be addressed to him at Irish Orthopaedic Association Secretariat, c/o Cappagh National Orthopaedic Hospital, Finglas, Dublin 11, Ireland.