Civilian fractures have been extensively studied with in an attempt to develop classification systems, which guide optimal fracture management, predict outcome or facilitate communication. More recently, biomechanical analyses have been applied in order to suggest mechanism of injury after the traumatic insult, and predict injuries as a result of a mechanism of injury, with particular application to the field so forensics. However, little work has been carried out on military fractures, and the application of civilian fracture classification systems are fraught with error. Explosive injuries have been sub-divided into primary, secondary and tertiary effects. The aim of this study was to 1. determine which effects of the explosion are responsible for combat casualty extremity bone injury in 2 distinct environments; a) in the open and b) enclosed space (either in vehicle or in cover) 2. determine whether patterns of combat casualty bone injury differed between environments Invariably, this has implications for injury classification and the development of appropriate mitigation strategies. All ED records, case notes, and radiographs of patients admitted to the British military hospital in Afghanistan were reviewed over a 6 month period Apr 08-Sept 08 to identify any fracture caused by an explosive mechanism. Paediatric cases were excluded from the analysis. All radiographs were independently reviewed by a Radiologist, a team of Military Orthopaedic Surgeons and a team of academic Biomechanists, in order to determine the fracture classification and predict the mechanism of injury. Early in the study it became clear that due to the complexity of some of the injuries it was inappropriate to consider bones separately and the term ‘Zone of Insult’ (ZoI) was developed to identify separate areas of injury.Introduction
Method
Instability was a problem with 10 fixators (67%). Seven fixators were revised and 3 were removed. Pin loosening was noted with 5 fixators (33%) involving twelve pins. The cause was multifactorial, but was related to injury severity and frame design. A significant pin track infection developed at 14 pin sites (3 fixators – 20%). All 3 fixators were removed after a mean of 15.5 days (range 14–19). Only 2 fixators did not require early removal or revision.
A retrospective review of all patients presenting to the multinational integrated medical unit at Sipovo in Bosnia-Herzegovina during the period 1 June 2000 to 30 November 2000 was carried out. During this 6-month period, 203 new patients presented to the orthopaedic surgeon; these patients form the basis of this study. Of the 203 patients, 54 (26.6%) presented with chronic problems, but of these 18 (33.3%) had been exacerbated by sporting activities during the tour. The remaining 149 (73.4%) presented with acute problems, and of these sports injury was the most common cause. Traffic accidents, military training injuries, non-specific trauma (falls, crush injures etc) and acute orthopaedic problems such as sciatica accounted for the remainder of the causes. These data are presented in table 1. Football was again the most common cause of injury accounting for 34.4% of all sporting injuries, and the lower limb, particularly the ankle, was the most common site of injury. The wisdom of allowing this sport, during operational tours, must be questioned. Only 5 (8.2%) of the patients presenting with sports injuries were discharged straight back to full duties. The majority (70.5%) received light duties (mean 14.4 days), but 13 patients (21.3%) required admission to hospital of which 9 were subsequently evacuated out of theatre. The total number of patients used for this review was 203 of which 13 were trauma from traffic accidents, 61 were sporting injuries, 7 from military training, 52 were non specific trauma, 11, the cause was not recorded, 5 were acute non traumatic orthopedic problems, 18 were chronic and exacerbated by sport and 36 were not related to sport at all.