Abstract
Introduction and Aims: Patients with proximal femoral fracture are frail with multiple comorbidities and the anaesthesia often proves a greater challenge than the surgery itself. The aim was firstly, to determine whether general, compared to regional anaesthesia, caused a decrease in the mental test score (MTS) of patients with proximal femoral fracture. Secondly, what effect does a reduced MTS have on the general outcome for such patients.
Method: A prospective observational study was conducted in a regional trauma centre. One hundred and seventy consecutive patients over 60 years of age (mean age 82.6 years) were included. Age under 60 years was the only exclusion criterion. Pre- and post-operative (day five) MTS values were recorded by the same clinician.
Results: The MTS decreased by 2.43 points when general anaesthesia was administered compared to 1.5 for regional anaesthesia (p< 0.01 Mann Whitney). Lower post-operative MTS values were associated with increased mortality (p< 0.001 Mann Whitney). The greater the decrease in MTS (between pre- and postoperative values) the more likely it is that the patient will be institutionalised (p< 0.01 Mann Whitney).
Conclusion: Reduced mental function as observed after general anaesthesia is associated with increased mortality and institutionalisation. Thus the increased use of regional anaesthesia is advocated.
These abstracts were prepared by Editorial Secretary, George Sikorski. Correspondence should be addressed to Australian Orthopaedic Association, Ground Floor, The William Bland Centre, 229 Macquarie Street, Sydney, NSW 2000, Australia.
At least one of the authors is receiving or has received material benefits or support from a commercial source.
