Psychological dysfunction associated with calcaneal fractures.

INTRODUCTION: The calcaneus is the most commonly fractured hindfoot bone, accounting for over 60% of all tarsal fractures. The aim of this study was to compare the mechanism of injury and psychological health status in patients presenting with calcaneal fractures to an age- and sex-matched control group with ankle fractures. PATIENTS AND METHODS: This retrospective study was undertaken within an orthopaedic unit at a tertiary hospital. An electronic medical record chart review was performed to identify eligible patients. Descriptive statistics were used to summarise the demographic and clinical characteristics of the patients. Between-group differences were analysed with the Mann-Whitney U test and Fisher's exact test for continuous and categorical variables, respectively. Multivariable binary logistic regression was used to determine the relationship between fracture type and underlying psychopathology, adjusting for mechanism of injury. RESULTS: Two-hundred and fifteen patients met the eligibility criteria for calcaneal fractures and these patients were subsequently matched to 215 ankle fracture patients. Men accounted for 154 (71.6%) of the patients in each group. Over half (51.2%) of all calcaneal fractures were due to an uncontrolled fall above one-metre, as opposed to 26.0% of ankle fractures, p < 0.001. Falling from a standing height was more common in the ankle fracture group, 37 (17.2%) versus 10 (4.7%), p < 0.001. Patients with calcaneal fractures were more likely to have a diagnosed psychological health complaint, 63 (29.3%) versus 32 (14.9%), p < 0.001. Suicidal ideation was significantly more common in the calcaneal fracture group 14 (6.5%) versus 3 (1.4%), p = 0.011. The presence of premorbid psychopathology was associated with calcaneal fracture, after adjusting for mechanism of injury (odds ratio 2.20, 95% confidence interval 1.32 to 3.65, p = 0.003). CONCLUSION: Calcaneal and ankle fractures display differences in both the mechanism of injury and the history of psychological health conditions. However, after adjusting for the mechanism of injury, diagnosed premorbid psychopathology remains twice as likely in someone with a calcaneal fracture as opposed to an ankle fracture. It may be prudent for orthopaedic surgeons to consider further investigations of psychological health when managing patients with a calcaneal fracture.

What happens to our amputees? The Darling Downs experience.

BACKGROUND: Major lower limb amputation is occasionally required in the management of end-stage pathology where other treatment options have failed. The primary aim of this study was to determine the 30-day and 1-year mortality rates of patients undergoing nontraumatic major lower limb amputation. Secondary aims were to investigate risk factors for poor outcomes, incidence of previous minor amputation, and the rate of subsequent major amputation. METHODS: All nontraumatic, major lower limb amputations performed at Toowoomba Hospital during an 18-year period were retrospectively reviewed. Mortality data were obtained from the Queensland Registry of Births, Deaths and Marriages. Kaplan-Meier analysis was performed to determine survival after amputation. RESULTS: A total of 147 patients were included in the study, with 104 undergoing below knee and 43 undergoing above knee amputations. Ten patients identified as having an Aboriginal and Torres Strait Islander background. For all patients, the 30-day mortality was 4.1% and 1-year mortality was 21.1%. For Indigenous patients, 30-day mortality was 10%. Previous minor amputation had occurred in 40 patients. Twenty-nine patients underwent further minor surgery after their initial major amputation, with thirteen requiring subsequent major amputation. Factors that increased mortality risk were the presence of peripheral vascular disease, an American Society of Anesthesiologists score of four and age greater than 65 years. CONCLUSION: The morbidity and mortality following major lower limb amputation is significant. The findings of this study highlight the importance of preventative measures to minimize the incidence of lower limb amputations in the future.

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction.

BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is a common orthopaedic procedure. We developed a novel, low dose computed tomography (LDCT) protocol to assess tunnel position post-operatively. The effective radiation dose of this protocol is < 0.5millisieverts (mSv), which is significantly less than the 2 mSv dose for a conventional CT protocol. The aim of this study was to assess the accuracy of the LDCT protocol for determining tunnel position. METHODS: Twenty-six patients who underwent primary ACL reconstruction were included in the study. A LDCT scan was performed 6 weeks post-operatively. Femoral and tibial tunnel positions were measured on three dimensional (3D) reconstructions using previously validated techniques. Measurements were performed independently by three observers at two time points, 4 weeks apart. RESULTS: There was excellent intra- and inter-rater reliability for all measurements using the images obtained from the LDCT protocol. Intra-class correlation coefficient (ICC) values were > 0.9 for all measurements. CONCLUSIONS: The LDCT protocol described in this study accurately demonstrates femoral and tibial tunnels post ACL reconstruction, while exposing the patient to a quarter of the radiation dose of a conventional CT. This protocol could be used by orthopaedic surgeons for routine post-operative imaging, in place of plain film radiographs.