s from the 2015 Meeting of the British Trauma Society, 4th–5th November 2015 The following abstracts, presented during the 2015 Annual Meeting of the British Trauma Society, were the winners of the Injury Journal Awards. 1st Best Clinical Presentation Abstract 14 Follow-up of 810 consecutive titanium hydroxyapatite coated uncemented stem hemiarthoplasties14 Follow-up of 810 consecutive titanium hydroxyapatite coated uncemented stem hemiarthoplasties Syed Nawaz*, Sophie Wrigley, Young-Seok Cho, Andrew Keightley, Arshad Khaleel St Peter’s Hospital, Chertsey, United Kingdom *Corresponding author. Objectives: To review outcome measures (intra-operative complications, mortality and revision surgery) in a prospective series of uncemented HAC stem Hemiarthroplasties. Methods: A review of a consecutive series of uncemented hip hemiarthroplasties entered prospectively into a database between January 2008 and June 2014. Medical records and radiographic review. Results: 810 consecutive Taperloc uncemented hemiarthroplasties with monopolar heads were performed in 763 patients, with minimum 12 month (12–90) follow-up. Mean age 83 years; 71% female. Mean time to operation was 28.5 h. 30-day mortality: 4.4% (33/763). One-year mortality: 11.2% (89/763). 2.5% (20/810) were readmitted at separate admission with a Periprosthetic fracture; 0.9% (7/810)were complicated by dislocation and 0.7% (6/ 810) were revised to THR for subsidence and associated pain. 2.5% (20/810 including those above) were converted to THR at a later date. Only 0.6% (5/810) had intraoperative calcar cracks or fractures, all of which were treated with intra-operative cabling. Conclusions: Parker et al. (2010) demonstrated cemented hemiarthroplasty were associated with a 25% one-year mortality; 5.3% further surgery rate. Although our follow-up period is minimally shorter, our results are comparable. We believe that uncemented proven stem design hemiarthroplasty remains a safe and reasonable surgical option. http://dx.doi.org/10.1016/j.injury.2015.12.004 2nd Best Clinical Presentation Abstract 13 Head injuries and warfarin: When are patients safe to be discharged? Aranghan Lingham*, Yashashwi Sinha, Saleem Riaz13 Head injuries and warfarin: When are patients safe to be discharged? Aranghan Lingham*, Yashashwi Sinha, Saleem Riaz Royal Stoke University Hospital, United Kingdom Keele University Medical School, United Kingdom *Corresponding author. Objectives: It is widely accepted that anticoagulation increases the risk of intracerebral haemorrhage (ICH) in head injury (HI). NICE guidelines 2014 recommend early CT scanning and correction of over-anticoagulation in all anticoagulated HI patients. There is however no consensus on suitable observation time. BestBETs systematic review reported a rate of 1% for developing a delayed ICH given a normal CT and an INR <3. The delayed ICH’s that occurred were not clinically significant. Therefore best practise dictates no observation is required. Our current protocol is: early head CT, correction of over-anticoagulation, and observation for 24 h. What are the outcomes for our patients with HI on anticoagulation and how do they compare to the evidence? Methods:We reviewed CDU (clinical decision unit) admissions between 10/12/2012 and 08/09/2013 included patients with HI, on anticoagulation, and no ICH on early CT Inclusion. We reviewed electronic patient records for subsequent hospital presentations to determine if they had a delayed ICH. Results: 66 patients met inclusion criteria between 10/12/2012 and 08/09/2013. No patient had a delayed intracerebral haemorrhage. 55/66were observed for 24 h, then discharged. 29/66 had no CT head. 3/66 had no INR check. 12/66 had supra-therapeutic and 17/66 had sub-therapeutic INR. Conclusions: We must ensure early CT scanning and INR is checked in all anticoagulated HI patients. Literature states that the rate of delayed ICH is 1% if the early CT scan is normal and INR is<3 which is in accordance with our results. There is a low risk of delayed ICH in our patients with a normal CT and an INR <3. We should decrease or eliminate the observation period for patients not meeting NICE criteria for observation, have a HI, are anticoagulated, with a normal CT and INR <3. http://dx.doi.org/10.1016/j.injury.2015.12.005 Injury, Int. J. Care Injured 47 (2016) 293–295