The impact of the Major Trauma Network: will trauma units continue to treat complex foot and ankle injuries?

INTRODUCTION: April 1st 2012 saw the introduction of National Trauma Networks in England. The aim to optimise the management of major trauma. Patients with an ISS≥16 would be transferred to the regional Major Trauma Centre (level 1). Our premise was that trauma units (level 2) would no longer manage complex foot and ankle injuries thereby obviating the need for a foot and ankle specialist service. METHODS: Retrospective analysis of the epidemiology of foot and ankle injuries, using the Gloucestershire trauma database, from a trauma unit with a population of 750,000. Rates of open fractures, complex foot and ankle injuries and requirement for stabilisation with external fixation were reviewed before and after the introduction of the regional Trauma Network. Secondly, using the Trauma Audit & Research Network (TARN) database, all foot and ankle injuries triaged to the regional Major Trauma Centre (MTC) were reviewed. RESULTS: Incidence of open foot and ankle injuries was 2.9 per 100,000 per year. There were 5.1% open injuries before the network and 3.2% after (p>0.05). Frequency of complex foot and ankle injuries was 4.2% before and 7.5% after the network commenced, showing no significant change. There was no statistically significant change in the numbers of patients with complex foot and ankle injuries treated by application of external fixators. Analysis of TARN data revealed that only 18% of patients with foot and ankle injuries taken to the MTC had an ISS≥16. The majority of these patients were identified as requiring plastic surgical intervention for open fractures (69%) or were polytrauma patients (43%). Only 4.5% of patients had isolated, closed foot and ankle injuries. CONCLUSION: We found that at the trauma unit there was no decrease in the numbers of complex foot and ankle injuries, open fractures, or the applications of external fixators, following the introduction of the Trauma Network. These patients will continue to attend trauma units as they usually have an ISS<16. Our findings suggest that there is still a need for foot and ankle specialists at trauma units, in order to manage patients with complex foot and ankle injuries.

The reliability and variation of measurements of the os calcis angles in children.

The databases of the Picture Archiving and Communication Systems of two hospitals were searched and all children who had a lateral radiograph of the ankle during their attendance at the emergency department were identified. In 227 radiographs, Bohler's and Gissane's angles were measured on two separate occasions and by two separate authors to allow calculation of inter- and intra-observer variation. Intraclass correlation coefficients were used to assess the reliability of the measurements. For Bohler's angle the overall inter-observer reliability, the intraclass correlation coefficient was 0.90 and the intra-observer reliability 0.95, giving excellent agreement. This reliability was maintained across the age groups. For Gissane's angle, inter- and intra-observer reliability was only fair or poor across most age groups. Further analysis of the Bohler's angle showed a significant variation in the mean angle with age. Contrary to published opinion, the angle is not uniformly lower than that of adults but varies with age, peaking towards the end of the first decade before attaining adult values. The age-related radiologic changes presented here may help in the interpretation of injuries to the hindfoot in children.

The "Good, Bad and Ugly" pin site grading system: A reliable and memorable method for documenting and monitoring ring fixator pin sites.

Although there is much in the literature regarding pin site infections, there is no accepted, validated method for documenting their state. We present a system for reliably labelling pin sites on any ring fixator construct and an easy-to-remember grading system to document the state of each pin site. Each site is graded in terms of erythema, pain and discharge to give a 3-point scale, named "Good", "Bad" and "Ugly" for ease of recall. This system was tested for intra- and inter-observer reproducibility. 15 patients undergoing elective limb reconstruction were recruited. A total of 218 pin sites were independently scored by 2 examiners. 82 were then re-examined later by the same examiners. 514 pin sites were felt to be "Good", 80 "Bad" and 6 "Ugly". The reproducibility of the system was found to be excellent. We feel our system gives a quick, reliable and reproducible method to monitor individual pin sites and their response to treatment.