Intracapsular hip fractures in the elderly. Do we know what is important?

Hip fractures in the elderly are a common reason for admission to the department of orthopaedic surgery, this condition asks an important part of health resources and is associated with high levels of co-morbidity and mortality. Many improvements have been introduced in the treatment of these patients, preoperative regional analgesia, intensive physical therapy, interdisciplinary care program; but still remain unresolved gaps. The aim of this study is to document the natural history of early versus delayed surgical intervention in elderly patients with hip fractures and to establish the prognostic factors of mortality and walking ability after discharge.

A sample of 499 patients admitted in our Institution was prospectively reviewed between February 2008 and February 2013. Preoperatively characteristics and functional data were assessed in relation with time to surgery (focused on mortality and ability to walk at first year).

The ability to walk and activities of daily living (functional results) were not associated with surgical delays (surgery before 24h from admission, surgery among 24h and 72h from admission and surgery later than 72h). However, ASA class, Parkinson disease and age were significantly associated with poor functional results. In the same way, mortality at 1year was not associated with time to surgery, but ASA class was associated with significant risk factor of 1 year-mortality.

ASA class, Parkinson disease and age are independent predictor of poor functional outcomes after intracapsular hip fracture. In addition, ASA class is an independent predictor of mortality. Patients with poor functional status before fracture and older than 75 years would benefit from geriatric and rehabilitation intervention immediately after surgery.