Geriatric patients with dementia show increased mortality and lack of functional recovery after hip fracture treated with hemiprosthesis.

Purpose: Operative timing, perioperative management and postoperative rehabilitation are rising challenges in orthopedic geriatric trauma. The aim of this study was to determine the outcome of patients with dementia or with a high number of comorbidities treated with hemiprosthesis after hip fracture. Literature regarding patients with high comorbidities is scarce, leaving nothing but endoprosthetic treatment for even the sickest, immobile patients.

Methods: A retrospective chart review of 326 patients (mean age 81 ± 9 years; 230 women and 96 men) with hip fractures treated between 2012 and 2017 with a hemiprosthesis was performed. Primary outcome measures were surgical and nonsurgical complication rates, best achievable mobilisation during the hospital stay and mortality.

Results: Patients with dementia had 20-fold increased risk to be bedridden after surgery and ninefold increased risk of dying (p < 0.005). Furthermore, they needed significantly more revision surgeries because of surgical complications. Patients classified ASA IV and V had significantly lower postoperative mobilization levels with only 10% able to walk with crutches and 53% bedridden. They also had significantly more non-surgical complications while dementia had no effect on non-surgical complication rate.

Conclusion: Patients classified ASA IV and V or suffering dementia show poor outcome after hip fracture treated with hemiprosthesis. Multidisciplinary approaches including surgeons, geriatricians, physiotherapists and psychiatrists are needed to improve the outcome of these patients. Especially in a subgroup of patients, where no mobilization is expected, alternative treatment options may be considered.