Differentiation in an inclusive trauma system: allocation of lower extremity fractures

Mapping of Patellar Fracture Patterns: A Multicenter Study of 237 Patients

Background/Objectives: Patellar fractures are rare but clinically significant due to their impact on knee function. These injuries vary from simple transverse to complex comminuted patterns. Computed tomography (CT) offers superior visualization compared to radiographs, enabling accurate classification and surgical planning. This study utilized CT-based fracture mapping to analyze fracture patterns and evaluate the impact of age, trauma-center level, and AO/OTA classification. Methods: This retrospective study included 237 patients diagnosed with patellar fractures who underwent CT imaging. Fractures were classified using the AO/OTA system, and fracture mapping was performed by overlaying fracture lines onto a standardized template. Statistical analysis assessed correlations between patient demographics, trauma-center level, and fracture patterns. Results: The cohort comprised 107 males and 130 females with a mean age of 56.9 ± 20.9 years. Males were significantly younger than females (49.2 vs. 63.3 years, p < 0.001). Fractures were evenly distributed between the right (46%) and left (54%) patellae. Type C fractures were the most common (54.4%), followed by Type B (29.9%) and Type A (15.6%). Trauma-center level was inversely associated with fracture severity (p < 0.001), with complex fractures more common at lower-level centers. Age was positively correlated with fracture severity (p = 0.001). Fracture mapping revealed the central patella as the most frequently affected region, with transverse fractures extending medially and laterally, sparing the upper and lower poles. Conclusions: CT imaging enhances the classification and mapping of patellar fractures, highlighting the central patella as the primary site of injury. Fracture severity correlates with age and trauma-center level. These findings support CT-based mapping as a valuable tool for improving surgical planning and treatment outcomes.

Lower Extremity Trauma is Associated With an Increased Rate of New Mental Disorder Diagnosis and Suicide Attempt

OBJECTIVES

To evaluate the risk of developing a new mental disorder diagnosis within 2 years of lower extremity fracture.

METHODS

DESIGN

Retrospective cohort study.

SETTING

National insurance claims database.

PATIENT SELECTION CRITERIA

Patients between 18 and 65 years with lower extremity, pelvis, and acetabular fractures without prior mental disorders as defined using International Classification of Diseases, 9th and 10th revision diagnosis codes were included. Mental disorders evaluated included alcohol use disorder, generalized anxiety disorder, bipolar disorder, major depressive disorder, drug use disorder, panic disorder, posttraumatic stress disorder, and suicide attempt.

OUTCOME MEASURES AND COMPARISONS

The individual lower extremity fracture cohorts were matched 1:4 with nonfracture controls. The specific groups of interest were pelvis fractures, acetabulum fractures, proximal femur fractures, femoral shaft fractures, distal femur fractures, patella fractures, tibia plateau fractures, tibia shaft fractures, ankle fractures, pilon fractures, calcaneus fractures, and Lisfranc fractures. Rates of mental disorders after primary lower extremity fractures within 2 years were compared using multivariable logistic regression.

RESULTS

Overall, the 263,988 patient-fracture group was 57.2% female with an average age of 46.6 years. Compared with controls with no fracture, patients who sustained pelvis, acetabulum, proximal femur, femoral shaft, distal femur, patella, tibia plateau, tibia shaft, pilon, calcaneus, or Lisfranc fracture had a statistically significantly increased risk of being diagnosed with a queried mental disorder within 2 years of fracture. When comparing all fracture patients by location, those suffering from fractures proximal to the knee joint, including pelvis fractures [OR: 1.51, 95% confidence interval (CI): 1.39-1.64] and proximal femur fractures [odds ratio (OR): 1.36, 95% CI: 1.26-1.47], demonstrated greater risk of developing any of the queried mental disorders compared with fractures distal to the knee, including ankle fractures (OR: 0.99, 95% CI: 0.95-1.03) and pilon fractures (OR: 1.05, 95% CI: 0.81-1.36). When comparing specific fracture patients with patients without fracture by mental disorder, patients demonstrated an increased risk of suicide attempt following fracture of the pelvis, acetabulum, femoral shaft, distal femur, and calcaneus, as well as patients sustaining a Lisfranc fracture.

CONCLUSIONS

There is an increased risk of being diagnosed with a new mental disorder following lower extremity trauma in patients without prior mental disorder diagnosis compared with matched individuals without a lower extremity fracture. Among the fractures studied, those that were more proximal, such as pelvis and proximal femur fractures, carried greater risk compared with more distal fracture sites, including ankle and pilon fractures. Patients who experienced certain lower extremity fractures had a significantly higher rate of suicide attempt compared with patients without fracture. Physicians should consider increased mental health screening and potential referral for mental health evaluation for patients following lower extremity trauma.

LEVEL OF EVIDENCE

Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.

Epidemiology, management and survival outcomes of adult out-of-hospital traumatic cardiac arrest due to blunt, penetrating or burn injury

BACKGROUND

Survival from out-of-hospital traumatic cardiac arrest (TCA) is poor. Regional variation exists regarding epidemiology, management and outcomes. Data on prognostic factors are scant. A better understanding of injury patterns and outcome determinants is key to identifying opportunities for survival improvement.

METHODS

Included were adult (≥18 years) out-of-hospital TCA due to blunt, penetrating or burn injury, who were attended by Queensland Ambulance Service paramedics between 1 January 2007 and 31 December 2019. We compared the characteristics of patients who were pronounced dead on paramedic arrival and those receiving resuscitation from paramedics. Intra-arrest procedures were described for attempted-resuscitation patients. Survival up to 6 months postarrest was reported, and factors associated with survival were investigated.

RESULTS

3891 patients were included; 2394 (61.5%) were pronounced dead on paramedic arrival and 1497 (38.5%) received resuscitation from paramedics. Most arrests (79.8%) resulted from blunt trauma. Motor vehicle collision (42.4%) and gunshot wound (17.7%) were the most common injury mechanisms in patients pronounced dead on paramedic arrival, whereas the most prevalent mechanisms in attempted-resuscitation patients were motor vehicle (31.3%) and motorcycle (20.6%) collisions. Among attempted-resuscitation patients, rates of transport and survival to hospital handover, to hospital discharge and to 6 months were 31.9%, 15.3%, 9.8% and 9.8%, respectively. Multivariable model showed that advanced airway management (adjusted OR 1.84; 95% CI 1.06 to 3.17), intravenous access (OR 5.04; 95% CI 2.43 to 10.45) and attendance of high acuity response unit (highly trained prehospital care clinicians) (OR 2.54; 95% CI 1.25 to 5.18) were associated with improved odds of survival to hospital handover.

CONCLUSIONS

By including all paramedic-attended patients, this study provides a more complete understanding of the epidemiology of out-of-hospital TCA. Contemporary survival rates from adult out-of-hospital TCA who receive resuscitation from paramedics may be higher than historically thought. Factors identified in this study as associated with survival may be useful to guide prognostication and treatment.

Short-term outcome of isolated lateral malleolar fracture treatment is independent of hospital trauma volume or teaching status: a nationwide retrospective cohort study

Introduction

In light of current discussions about centralisation and teaching in medicine, we wanted to investigate the differences in in-hospital outcomes after surgical treatment of isolated ankle fractures, taking into account high-volume centres (HVCs) and low-volume centres (LVCs) and teaching procedures.

Methods

A retrospective analysis of malleolar fractures recorded in a National Quality Assurance Database (AQC) from the period 01-01-1998 to 31-12-2018 was carried out. Inclusion criteria were isolated, and operatively treated lateral malleolar fractures (ICD-10 Code S82.6 and corresponding procedure codes). Variables were sought in bivariate and multivariate analyses. A total of 6760 cases were included. By dividing the total cases arbitrarily in half, 12 HVCs (n = 3327, 49%) and 56 LVCs (n = 3433, 51%) were identified.

Results

Patients in HVCs were younger (48 vs. 50 years old), had more comorbidities (26% vs. 19%) and had more open fractures (0.48% vs. 0.15%). Open reduction and internal fixation was the most common operative treatment at HVCs and LVCs (95% vs. 98%). A more frequent use of external fixation (2.5% vs. 0.55%) was reported at HVCs. There was no difference in mortality between treatment at HVCs and LVCs. A longer hospitalisation of 7.2 ± 5 days at HVCs vs. 6.3 ± 4.8 days at LVCs was observed. In addition, a higher rate of complications of 3.2% was found at HVCs compared to 1.9% at LVCs. The frequency of teaching operations was significantly higher at HVCs (30% vs. 26%). Teaching status had no influence on mortality or complications but was associated with a prolonged length of stay and operating time.

Conclusion

We found significant differences between HVCs and LVCs in terms of in-hospital outcomes for ankle fractures. These differences could be explained due to a more severely ill patient population and more complex (also open) fracture patterns with resulting use of external fixation and longer duration of surgery. However, structural and organisational differences, such as an extended preoperative stays at HVCs and a higher teaching rate, were also apparent. No difference in mortality could be detected.

[Competence, creativity and communication: basics for quality improvement in traumatology : Reality and future challenges]

Interdisciplinary collaboration is one of the key factors for successful treatment of patients with complex injuries and diseases. Hence, several innovative concepts have been initiated to improve the treatment quality within the field of trauma surgery. The implementation of a ward pharmacist with the daily discussion of prescribed medications shows a reduction of side effects, costs for medicaments and the use of antibiotics. An interdisciplinary and multimodal delirium team was introduced and every patient over the age of 65 years was screened for the risk of perioperative and postoperative delirium, the medication was adjusted and expert advice was available in the case of acute delirium. Corresponding to the well-established tumor boards, an interdisciplinary musculoskeletal conference to decide on the treatment of complex interdisciplinary injuries of the musculoskeletal system should be established. The future challenges will include the digital connection of hospitals within the already existing trauma networks in order to provide rapid access to this interdisciplinary expertise also outside maximum care hospitals.

The evolution of trauma care in the Netherlands over 20 years

Introduction

In 1999 an inclusive trauma system was initiated in the Netherlands and a nationwide trauma registry, including all admitted trauma patients to every hospital, was started. The Dutch trauma system is run by trauma surgeons who treat both the truncal (visceral) and extremity injuries (fractures).

Materials and Methods

In this comprehensive review based on previous published studies, data over the past 20 years from the central region of the Netherlands (Utrecht) was evaluated.

Results

It is demonstrated that the initiation of the trauma systems and the governance by the trauma surgeons led to a region-wide mortality reduction of 50% and a mortality reduction for the most severely injured of 75% in the level 1 trauma centre. Furthermore, major improvements were found in terms of efficiency, demonstrating the quality of the current system and its constructs such as the type of surgeon. Due to the major reduction in mortality over the past few years, the emphasis of trauma care evaluation shifts towards functional outcome of severely injured patients. For the upcoming years, centralisation of severely injured patients should also aim at the balance between skills in primary resuscitation and surgical stabilization versus longitudinal surgical involvement.

Conclusion

Further centralisation to a limited number of level 1 trauma centres in the Netherlands is necessary to consolidate experience and knowledge for the trauma surgeon. The future trauma surgeon, as specialist for injured patients, should be able to provide the vast majority of trauma care in this system. For the remaining part, intramural, regional and national collaboration is essential