Pediatric “Off-Road Vehicle” Trauma

Objective To study the relationship between the fractured scapular location, the number of fractured scapular regions and the distribution and severity of associated injuries in patients with multiple trauma. Methods One hundred and fifteen consecutive patients with fractured scapula were retrospectively studied between August 2006 and March 2008. There were 96 males and 19 female with an average age of 37.9 years. Mechanism of injury, associated injuries, abbreviated injury soore (AIS) for each part, injury severity score (ISS), and the location and the number of anatomic scapular regions involved in each fracture were studied. Patients were divided into single-region fracture (SRF) group and multiple-region fracture (MRF) group. Furthermore, the SRF group was subdivided into three groups according to their anatomic location: 1) the muscle covered part, 2) the apophyseal part and 3) the glenoid part. Computer tomography and plain radiographs was used for fracture classification in all patients. Results Most scapular fractures were a part of severe multiple trauma, with mean ISS 14.0 among them 42 cases (36.5%) were greater than 16. Road traffic accident was the most common cause for scapular fracture. Ninety-eight patients (85.2%) sustained associated injury. The most frequent part involved was chest(85/115, 73.9%). ISS and AIS for the chest injuries were higher in patients with multiple scapular fractures or scapular fractures in muscle covered part. Conclusion Scapular fractures are usually caused by directly high energy trauma, accompanied by associated injuries. The most frequent region was chest injury. MRF may serve as an external skeletal marker of severe chest injury. Key words: Shoulder fractures; Scapula; Wounds and injuries; Thorax

BACKGROUND: Craniofacial injuries contribute substantially to morbidity after blunt trauma, with orbital fractures seen in approximately 10–25% of all traumatic facial fractures. Orbital blow-out fractures occur when an orbital wall is fractured with an intact orbital rim, and usually occurs after significant blunt trauma from an object larger than the orbital aperture. The aim of this study is to determine the impact of age, injury severity, and mechanism of injury on orbital blow-out fracture patterns. METHODS: We retrospectively reviewed all patients admitted to a regional Level 2 Trauma Center, who sustained blunt orbital fractures, over an 11-year period, from January 2006 to December 2016. We excluded all patients who had orbital rim fractures and all penetrating trauma. Only patients who had a computed tomography scan of their face on presentation were included. There were 825 patients who met inclusion criteria. Individual charts were reviewed for demographics, length-of-stay(LOS), mechanism of injury(MOI), injury severity score(ISS), and mortality. Individual facial CT scans were reviewed along with the formal radiologist report to determine fracture locations. Statistical significance was set at a p value ≤0.05. This study was approved by our Institutional Review Board. RESULTS: Our cohort consisted of 825 patients, with 42 mortalities (5.1%). The mean age was 40.4 years old (range 1–97) and there was an approximate 4:1 male:female ratio. The mean LOS was 5.4 days (range 0–78) and the mean ISS was 14.7(range 1–50). The most common MOI was motor vehicle collisions(MVC) in 211 patients, followed by assault, ground-level mechanical falls, All-Terrain Vehicle(ATV) accidents, motorcycle collisions(MCC), and other mechanisms in 171, 151, 112, 53, and 127 patients, respectively. Overall, the most common orbital blow-out fracture involved the orbital floor in 567 patients (68.7%), followed by the lateral, medial, superior(roof), and posterior walls in 310(37.6%), 183(22.2%), 160(19.3%), and 16(1.8%) patients, respectively. The most common fracture pattern combination was orbital floor and lateral wall fractures in 202 patients (24.5%). The mean number of orbital blow-out fractures per patient in the entire cohort was 1.50. Orbital floor fractures remained the most common blow-out fracture in all age groups, accounting for 72.4% in pediatrics (1–17 years old), 66.4% in adults (18–64 years), and 77.7% in the elderly (age ≥65 years). Patients with ISS <15 were significantly more likely to have an orbital floor fracture when compared to patients with ISS ≥15, with fractures present in 81.1% and 56.9% of patients, respectively(p<0.05). MCC resulted in the highest mean number of orbital blow-out fractures per patient (1.83), which was significantly higher than other mechanisms(p<0.05). Patients who had ground-level mechanical falls were most likely to have orbital floor blow-out fractures (90.0%) compared with other mechanisms(p<0.05). CONCLUSION: Orbital blow-out fractures are a common injury after significant blunt craniofacial trauma. The orbital floor is most frequently involved, and patients who have mechanical falls seem particularly prone to this injury. Patients with lower ISS in our cohort likely had more concentrated craniofacial injuries, explaining their worse fracture patterns. MCC appears to confer the greatest craniofacial trauma with the most severe orbital blow-out fracture patterns. Age did not independently predict fracture patterns.

Background:The incidence of abdominal trauma is still underreported from the Arab Middle-East. We aimed to evaluate the incidence, causes, clinical presentation, and outcome of the abdominal trauma patients in a newly established trauma center.Materials and Methods:A retrospective analysis was conducted at the only level I trauma center in Qatar for the patients admitted with abdominal trauma (2008-2011). Patients demographics, mechanism of injury, pattern of organ injuries, associated extra-abdominal injuries, Injury Severity Score (ISS), Abbreviated Injury Scale, complications, length of Intensive Care Unit, and hospital stay, and mortality were reviewed.Results:A total of 6888 trauma patients were admitted to the hospital, of which 1036 (15%) had abdominal trauma. The mean age was 30.6 ± 13 years and the majority was males (93%). Road traffic accidents (61%) were the most frequent mechanism of injury followed by fall from height (25%) and fall of heavy object (7%). The mean ISS was 17.9 ± 10. Liver (36%), spleen (32%) and kidney (18%) were most common injured organs. The common associated extra-abdominal injuries included chest (35%), musculoskeletal (32%), and head injury (24%). Wound infection (3.8%), pneumonia (3%), and urinary tract infection (1.4%) were the frequently observed complications. The overall mortality was 8.3% and late mortality was observed in 2.3% cases mainly due to severe head injury and sepsis. The predictors of mortality were head injury, ISS, need for blood transfusion, and serum lactate.Conclusion:Abdominal trauma is a frequent diagnosis in multiple trauma and the presence of extra-abdominal injuries and sepsis has a significant impact on the outcome.

ABSTRACTBackgroundThe Injury Severity Score (ISS) is a commonly used trauma assessment tool. An accurately calculated ISS is fundamental when used for the classification of the injury severity of trauma patients and subsequent evaluation of a trauma center's performance. This study aimed to analyze the accuracy of a preliminary ISS of trauma patients in the resuscitation room.MethodsA preliminary ISS assessed by clinicians during the primary assessment of trauma patients at the Trauma Center of Rigshospitalet, Denmark in the time period January 2019–May 2024 was recorded in a trauma database and compared with definitive ISS assessed by certified Abbreviated Injury Scale (AIS) coders. Clinicians were not AIS‐certified. All trauma patients were clinically assessed by a trauma team. The primary outcome of the study was the interrater agreement of the preliminary and definitive ISS, evaluated using Cohen's Kappa and a Bland–Altman plot for visual representation. Cases with missing or invalid data were excluded.ResultsIn total, 3623 trauma patients with preliminary and definitive ISS were registered. The majority of trauma patients were adult 2858 (79%), and male 2433 (67%). Penetrating trauma was sustained by 588 (16%) patients while 3032 (84%) suffered blunt trauma. The Cohen's Kappa between the preliminary and the definitive ISS value was 0.51 (95% CI 0.50–0.53), suggesting a moderate overall agreement. The lowest agreement was found in the subgroup of seriously (ISS 15–24) injured patients, 0.31 (95% CI 0.27–0.35). The Bland–Altman plot showed acceptable agreement, although it seemed there was an increasing difference in ISS with increasing mean ISS. No indication of other bias or systematic mistakes was identified.ConclusionThis study found a moderate but overall acceptable level of agreement between preliminary and definitive ISS in trauma patients. In the most severe cases, the preliminary ISS showed a tendency to underestimate injury severity. These findings suggest that the accuracy of preliminary ISS diminishes in cases of severe trauma, highlighting the need for cautious interpretation in critically injured patients. Preliminary ISS remains a valuable tool in clinical settings for trauma severity classification.

Because of the unique physiology and comorbidities of injured geriatric patients, specific interventions are needed to improve outcomes. The purpose of this study was to assess the effect of a change in triage criteria for injured geriatric patients evaluated at an American College of Surgeons Level I trauma center. As of October 1, 2013, all injured patients 70 years or older were mandated to have the highest-level trauma activation upon emergency department (ED) arrival regardless of physiology or mechanism of injury. Patients admitted before that date were designated as PRE; those admitted after were designated as POST. The study period was from October 1, 2011, through April 30, 2015. Data collected included demographics, mechanism of injury, hypotension on admission, comorbidities, Injury Severity Score (ISS), ED length of stay (LOS), complications, and mortality. Bivariate and multivariable analyses were used to compare outcomes between the study groups (p < 0.05 was considered significant). χ or Fisher's exact test was used as appropriate for bivariate analyses of categorical variables; patients' ages were compared using the Wilcoxon rank-sum test. A total of 2,269 patients (mean, 80.63 years; mean ISS, 12.2; PRE, 1,271; POST, 933) were included in the study. On multivariable analysis, increasing age, higher ISS, and hypotension were associated with higher mortality. POST patients were more likely to have an ED LOS of 2 hours or shorter (odds ratio, 1.614; 95% confidence interval, 1.088-2.394) after controlling for hypotension, ISS, and comorbidities. POST mortality significantly decreased (odds ratio, 0.689; 95% confidence interval, 0.484-0.979). Based on age alone, the focused intervention of a higher level of trauma activation decreased ED LOS and mortality in injured geriatric patients. Therapeutic/care management study, level IV.

BackgroundThoracic and extremity injuries are common in polytraumatized patients. The clavicle limits the upper thoracic cage and connects the body and upper extremities. It is easy to examine and is visible on standard emergency room radiographs. We hypothesize that clavicular fracture in polytrauma patients indicates the presence of further injuries of the upper extremities, head, neck and thorax.Material and methodsRetrospective study including patients admitted between 2008 and 2012 to a level-I trauma center. Inclusion criteria: ISS > 16, two or more injured body regions, clavicular fracture. Control group: patients admitted in 2011, ISS > 16, two or more injured body regions, no clavicular fracture. Patient information was obtained from the patients’ charts; evaluation of radiographic findings was performed; scoring was based on the Abbreviated Injury Scale (AIS) and Injury Severity Score (ISS) AIS/ISS; data were analyzed using Pearson’s correlation and the Mann–Whitney U-test in SPSS (version 11.5.1); graphs were drawn using EXCEL®.ResultsThirty-four patients with clavicular fracture (C+) and 40 without (C-) were included; the mean ISS was 25 (range 16–57), m = 70%, f = 30%; age 43.3 years (range 9–88); clavicular fractures were positively correlated with severe thoracic (p = 0.011, OR 4.5: KI 1.3–15.3), external (p < 0.001, OR 9.2: KI 2.7–30.9) and upper extremity injuries (p < 0.001, OR 33.2: KI 6.9–16.04 resp. p = 0.004, OR 12.5: KI 1.5–102.9). C + showed a lower head/neck AIS (p = 0.033), higher thorax AIS (p = 0.04), arm/shoulder AIS (p = 0.001) and external AIS (0.003) than C-. Mean hospital stay and ICU treatment time were longer in the C + group (p = 0.001 and p = 0.025 respectively).ConclusionA clavicular fracture can be diagnosed easily and may be used as a pointer for further thoracic and upper extremity injuries in polytrauma patients that might have been otherwise missed. Special attention should be paid on second and tertiary survey.

To correlate the simple triage and rapid treatment (START) colors to trauma injury severity scores (ISS). Six volunteer healthcare providers unfamiliar with START were trained to triage. Each chart was designated a START color by a volunteer healthcare provider and the "expert" trainer. The colors and corresponding ISS were recorded. Level I trauma center at a suburban tertiary care hospital. One hundred charts of patients at least 65 years old who appear in Christiana Hospital's Trauma Registry were randomly chosen for the study, and 98 charts with complete data were included. Cohen's Kappa score measures the level of agreement between the "volunteer" and "expert" reviewers. Pearson correlation determines the association between the START colors and mean ISS. The Cohen's Kappa score between the volunteer and expert reviewers was 0.9915, indicating a highly significant agreement between the reviewers on the triage category of the patients. The mean ISS for each color was as follows: green = 11, yellow = 12, red = 20, black = 24. The mean ISS increases as the acuity of the triage category increases, with a Pearson correlation of 0.969. The START method is a simple technique used to triage quickly a large number of patients. Healthcare providers can undergo just-in-time training to learn this technique and use it effectively. The START colors also imply a correlation with the trauma ISS, with higher ISS more likely to be triaged "red" or "black."

Detecting severe injuries of the upper body in multiple trauma patients

Injury in childhood is a major cause of potentially preventable morbidity and mortality. In order to implement effective preventive strategies, epidemiological data on mechanisms of injury and outcome are essential. To assess the causation, severity of injury, morbidity and mortality of paediatric trauma admitted to a level 1 trauma intensive care unit (TICU). Children were defined as being <16 years of age. The study covered the 5-year period January 2008-December 2012. Eligible patients were identified from a prospective database maintained in the level 1 TICU at Inkosi Albert Luthuli Central Hospital, Durban, South Africa. Data extracted were referral source, mechanism of injury, age and gender distribution, injury severity score (ISS), anatomical distribution of injury and mortality. A total of 181 patients admitted during the study period accounted for 15.9% of all admissions. There were 84 females (46.4%) and 97 males (53.6%), with a median age of 7 years (interquartile range (IQR) 4-10). Sources of admission were directly from the scene in 38 cases (21.0%), from a primary healthcare facility in 47 (26.0%), from a regional hospital in 56 (31.0%) and from a tertiary facility in 40 (22.0%). Mortality rates according to location of transfer were regional hospital 8 deaths (30.8%), tertiary facility 7 (26.9%), primary health clinic 7 (26.9%), and from the scene 4 (15.4%). Mechanisms of injury were pedestrian-motor vehicle collision (PMVC) in 105 cases (58.0%), motor vehicle passenger in 38 (21.0%), non-vehicular blunt trauma in 18 (10.0%), gunshot wounds (GSWs) in 12 (6.6%), stab wounds in 6 (3.3%), bull goring in 1 (0.5%) and bicycle accident 1 (0.5%). The median ISS for all admissions was 25 (IQR 16-38). ISSs were >25 in 98 patients (54.1%), 16-25 in 51 (28.2%), 9-15 in 9 (4.9%) and <9 in 13 (7.2%); 61.9% of patients had head injuries, 48.1% injuries to the extremities, 41.4% abdominal trauma, 40.3% thoracic trauma, 20.4% external soft-tissue trauma, 9.9% cervical injury and 9.4% facial trauma. There were 26 deaths (14.4%), of which PMVCs accounted for 16 (61.5%), motor vehicle passengers for 7 (26.9%), blunt trauma for 2 (7.7%) and GSWs for 1 (3.8%). The majority of deaths (92%) were of patients with an ISS>25. Of the 26 patients who died, 88.4% had a head injury, 46.2% an extremity injury, 38.5% an external injury, 34.6% abdominal or chest injuries, 19.2% neck injury and 11.5% facial injury. Motor vehicle-related injuries, especially PMVCs, dominate severe paediatric trauma and there is an urgent need for more road traffic education and stringent measures to decrease the incidence and associated morbidity and mortality.

Combat-related acetabular fractures: Outcomes of open versus closed injuries

The Injury Severity Score (ISS) is widely used in trauma research worldwide. An ISS cutoff value of ≥16 is frequently used as the definition of severe injury in Japan. The mortality of patients with ISS ≥16 has decreased in recent years, owing to the developing the trauma care system. This study aimed to analyze the prevalence, in-hospital mortality, and odds ratio (OR) for mortality in Japanese injured patients by age, injury mechanism, injury region, and injury severity over 10 years. This study used the Japan Trauma Data Bank (JTDB) dataset, which included 315,614 patients registered between 2009 and 2018. 209,290 injured patients were utilized. This study evaluated 10-year trends of the prevalence and in-hospital mortality and risk factors associated with in-hospital mortality. The overall in-hospital mortality was 10.5%. During the 10-year study period in Japan, the mortality trend among all injured patient groups with ISS 0–15, 16–25, and ≥26 showed significant decreases (p <0.001). Moreover, the mortality risk of patients with ISS ≥26 was significantly higher than that of patients with ISS 0–15 and 16–25 (p <0.001, OR = 0.05 and p<0.001, OR = 0.22). If we define injured patients who are expected to have a mortality rate of 20% or more as severely injured, it may be necessary to change the injury severity definition according to reduction of trauma mortality as ISS cutoff values to ≥26 instead of ≥16. From 2009 to 2018, the in-hospital mortality trend among all injured patient groups with ISS 0–15, 16–25, and ≥26 showed significant decreases in Japan. Differences were noted in mortality trends and risks according to anatomical injury severity.

Blunt thoracic aortic injury (BTAI) is highly lethal and its management has evolved with the advent of endovascular approaches. We hypothesized that endovascular repair (ER) would have equivalent/improved survival compared to open repair (OR). The aim of our study was to review our center's morbidity and mortality after BTAI. Our Level I trauma center registry was queried for BTAI between 2002-2015. This cohort was stratified into three groups: ER, OR and those patients managed non-operatively (NOP). Primary endpoint was mortality and secondary endpoints included complications after repair and freedom from re-intervention at follow-up. Among 81 patients with BTAI, there was a 58% mortality at presentation with a mean Injury Severity Score (ISS) of 65. From the remaining 34 patients alive after initial resuscitation, 12 (35%) patients were managed via OR, 12 (35%) via ER and 10 (30%) NOP. The mean ISS among these groups was 31, 44, and 30 respectively (P=0.6). 42% of patients in ER underwent coverage of the left subclavian artery without sequelae. There was one death in the OR and ER groups. Postoperative complications included one paraplegia after ER and one lower extremity weakness and vocal cord paralysis after OR. There was a shift in the year 2007 in the treatment of BTAI for ER instead of OR. Mean follow-up was 59.7±48.5months. None of the patients on follow-up required re-interventions. Although BTAI still carries a high mortality rate, data from our trauma center suggest that ER has equivalent survival when compared to OR.

BackgroundRoad traffic crashes related (RTCR) chest traumas remain important global public health challenge. The impact of boosting market of automobile vehicles in China during last decade on thoracic injury needs to be defined. This study aimed to review and analyze the demographic and clinical characteristics of RTCR thoracic injuries in China.MethodsClinical records of patients with thoracic trauma admitted to thoracic surgery department between January 2003 and June 2020 were retrospectively retrieved and reviewed. Patients’ profiles and clinical characteristics were comparatively analyzed between road traffic crashes caused injury and other injury mechanisms, and in RTCR chest trauma patients before January 2011 (2003 group), and after January 2011 (2011 group), when is considered as the beginning year of Chinese household vehicle era.ResultsThe study included 5095 thoracic trauma patients with mean age of 50.2 years, of whom 79.4% were male. Most of the patients (70.3%, n = 3583) had rib fractures. Associated injuries were present in 52.0% of the patients, of them 78.5% (n = 2080) were extremity fractures. Road traffic crashes accounted for 41.4% (n = 2108) of the injuries, most of them (98.0%) were related to motor vehicles. In comparison with other chest trauma mechanisms, RTCR chest injuries affected females and older males more frequently, with a higher incidence of rib fractures and sternum fractures, and higher injury severity scores (ISS) (all p < 0.05). Surgeries were required in 1495 (70.9%) patients of the RRTCR chest traumas, while the majority of non-RTCR thoracic injuries were managed conservatively or with tube thoracostomy (30.2%, n = 901). RTCR chest traumas caused longer hospital stay (13.0 ± 9.6 days vs. 11.8 ± 7.4 days, p = 0.001), higher ICU usage (30.7% vs. 19.6%, p = 0.001), higher rate of ventilator support (12.9% vs. 7.5%, p = 0.001), and higher mortalities (3.8% vs. 1.6%, p = 0.005) than that of non-RTRA chest injuries. For RTCR patients, when compared with 2003 group, 2011 group had similar patterns in terms of accident category, associated injury and treatment. However, 2011 group had more females (38.5% vs. 18.0%, p = 0.001) and older males (50.6 ± 9.7 vs. 47.9 ± 17.2, p = 0.001), with a higher ISS (18.3 ± 10.2 vs. 17.1 ± 8.9, p = 0.004), and fewer were managed with chest tubes (25.0% vs. 29.2%, p = 0.031). Clinical outcomes were not significantly different between the groups in terms of hospital length of stay, intensive care unit (ICU) usage, ICU length of stay, duration of ventilator hours and mortality. However, the 2011 group had more patients requiring ventilator support (14.4% vs. 10.6%, p = 0.011).ConclusionsRoad traffic crashes remain to be the major etiology of thoracic injuries in China, which usually affects middle-aged males, causing rib fractures with concomitant injuries frequently occurring to other organ systems. Treatments mainly include tube thoracotomy and surgical procedures. Although the clinical characteristics and outcomes of traffic accident related chest traumas are largely unchanged in spite of the rapid increasing numbers of motor vehicles, variations in the pattern of injuries by gender, age, injury severity and ventilator usage may still provide important information for targeted management.

Chest trauma is one of the most prevalent subgroups of trauma, accounting for 1 out of 4 deaths relating to trauma. Gaining insights into the trends of chest trauma is crucial in tackling its significant role in causing injuries and fatalities, particularly in low- and middle-income nations. Therefore, we aimed to investigate the prevalence of chest trauma, the types of injuries, mechanisms of injury, and predictors of mortality in the largest level one trauma center in southern Iran. This retrospective study included 4257 patients who were admitted to a tertiary medical center in southern Iran with chest trauma as the primary diagnosis from March 2019 to March 2022. All patients were divided into survived (n = 3505) and deceased (n = 752) groups. Data were analyzed by IBM SPSS statistics version 26, using independent samples t-test, Chi-Square test, and multivariate logistic regression. The mean age was 37 ± 16.1 and 50.15 ± 21.5 in survived group and deceased group, respectively. Most of the population were men in both groups. The mean of the injury severity score (ISS) was higher in the deceased group (37.22 ± 25.32) than in the survived group (15 ± 10.4). All on-arrival vital signs show significant differences between the two groups. Among various types of thoracic injuries, pneumothorax (OR 2.04, CI 1.52–2.73, P = 0.001) and rib fracture (OR 1.34, CI 1.00–1.79, P = 0.04) increases the odds of mortality. Multivariate logistic regression analysis showed that age, gender, ISS, types of thoracic injury, and some on-arrival vital signs are proper mortality predictors in patients with chest wall injury. Multiple risk factors including age, gender, ISS, type of injury, and on-arrival vital signs have been indicated for predicting mortality in chest trauma patients. Proper care and immediate management of these risk factors could lower the mortality morbidity among these patients.

Traumatic cardiac and thoracic aortic injuries are hypothesized to result from rapid deceleration of occupants during a motor vehicle crash. The purpose of this study was to identify potential risk factors for motor vehicle-related cardiac and thoracic aortic (HTA) injury using the Crash Injury Research Engineering Network (CIREN) database. CIREN data were used to test the hypothesis that there is no difference between occupants with HTA injury and occupants with thoracic injury other than the heart or aorta (non-HTA). Occupant variables (restraint use, airbag deployment, Glasgow Coma Scale score, Injury Severity Score, concomitant injuries, driver versus passenger status, height, and comorbidity) and crash variables (principal direction of force, change in velocity, vehicle crush, intrusion, and vehicle type) were compared for these two groups. Odds ratios were used to quantify the potential risk factors for HTA injury compared with non-HTA injury. There were 168 occupants with an HTA injury and 731 with a non-HTA injury. Greater crash severity (based on vehicle crush and change in velocity), improper safety belt use, and lack of safety belt use were significantly associated with HTA injury. Unrestrained occupants had almost three times the chance of having an HTA injury (odds ratio = 2.86; p < 0.05). For restrained drivers, 41.4% of HTA injuries were caused by vehicle interior components. When not protected by both safety belts and air bags, 45.7% of driver HTA injuries were caused by the steering wheel. For passengers, the vehicle interior (armrests, side interior, and B-pillars) accounted for most HTA injuries regardless of safety system status. More than half of all occupants wearing safety belts who sustained an HTA injury were improperly wearing their safety belts. The high mortality associated with cardiac and aortic injuries supports the need to prevent these injuries from occurring during motor vehicle crashes. These results suggest proper use of safety belts is necessary to prevent cardiac and thoracic aortic injuries. However, other important potential risk factors, such as motor vehicle size and crash severity, might continue to present a challenge to motor vehicle safety professionals.