• Gavin Baker, Samuel E McMahon, Michael Warnock, Andrew Johnston, and Laurence A Cusick.
• Trauma and orthopaedics, Fracture Clinic, Level 2, Royal Victoria Hospital, Grosvenor Road, Belfast BT12 6 BA, Northern Ireland. Electronic address: gbaker_16@hotmail.co.uk.
• Injury. 2020 Feb 1; 51 (2): 347-351.

BackgroundAcetabular fractures in the elderly are associated with high levels of morbidity and mortality. Despite advances in operative techniques, there remains a cohort of elderly, extremely frail patients with comminuted fractures who are considered unfit for surgery and are treated conservatively. We aim to assess mortality, mobility and radiological outcomes one-year post injury in this challenging cohort.MethodsWe performed a review of the regional Fracture Outcome and Research Database for patients over 65 with associated type acetabular fractures which were treated conservatively. We collected data on demographics, fracture classification, pre-injury mobility and habitation, and length of acute hospital stay. Mobility status, habitation, radiographic result and mortality were also recorded at one-year post injury.ResultsThere were 49 patients with a mean age of 80 years. The mean estimated American Society of Anaesthesiologist (ASA) score was 3.1. 92% sustained a low energy injury, and the most common fracture pattern was anterior posterior hemi-transverse (84%). Mean acute hospital stay was 20 days and mortality was 24% at one year. 56% of patients maintained habitation in their own home and 35% returned to their premorbid level of mobility. Of the surviving patients, 30% had an 'excellent/good' reduction on x-ray at one year, 70% had a 'fair/poor' reduction. There was no correlation between fracture reduction and either one year mobility status or maintenance of mobility.ConclusionsThe data confirms that conservatively managed complex acetabular fractures in the elderly, frail patient are associated with a significant reduction in mobility and living independence, a high level of mortality and poor radiological outcomes.ImplicationsConservative management of this cohort is associated with poor outcomes and current operative solutions are unsuitable for this frail cohort of patients. Future developments should focus on minimising surgical insult and allowing weight bearing mobilisation to maximise the rehabilitation potential in this frail cohort.Copyright © 2019 Elsevier Ltd. All rights reserved.

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