Role of Computed Tomography in the Classification of Pediatric Pelvic Fractures-Revisited

Paediatric pelvic fractures - an updated literature review

BACKGROUND

Pelvic fractures in children are indicative of significant trauma. Patients will often have associated injuries - some of which require urgent intervention to prevent death and disability. Paediatric and adult pelvises respond to traumatic forces differently and distinct approaches are required for each population. Historically, pelvic fractures have been treated conservatively, but this trend is changing with a better understanding of the pelvis' inability to remodel significant deformity, as well as new techniques for operative fixation.

METHODS

A comprehensive search of the literature was conducted for articles published between 2000 and 2020 on paediatric pelvic fractures using medical databases including PubMed, Embase and the Cochrane Library.

RESULTS

We included 143 studies in our literature review and summarized the incidence, pathophysiology, assessment, management and complications associated with paediatric pelvic fractures.

CONCLUSIONS

The rarity of paediatric pelvic fractures corresponds with a paucity of randomized clinical trials covering this topic. Trends such as the screening pelvic x-ray are derived from adult populations but are now questioned in children. Other aspects of assessment and management of these children warrant such levels of scrutiny.

Clinical characteristics, injury pattern and management of pediatric pelvic fracture: An observational retrospective study from a level I trauma center

Background

Pediatric pelvic fractures (PPF) are uncommon among children requiring hospitalization after blunt trauma. The present study explored our experience for the prevalence, patients demographics, clinical characteristics, injury pattern and management of pediatric pelvic fractures in a level I trauma center.

Methods

This is a retrospective review of prospectively collected data obtained from trauma registry database for all pediatrics trauma patients of age ≤18 years. Data were analyzed according to different aspects relevant to the clinical applications such as Torode classification for pelvic ring fracture (Type I–IV), open versus closed triradiate cartilage, and surgical versus non-surgical management.

Results

During the study period (3 and half years), a total of 119 PPF cases were admitted at the trauma center (11% of total pediatric admissions); the majority had pelvic ring fractures (91.6%) and 8.4% had an acetabular fracture. The mean age of patients was 11.5 ± 5.7, and the majority were males (78.2%). One hundred and four fractures were classified as type I (5.8%), type II (13.5%), type III (68.3%) and type IV (12.5%). Patients in the surgical group were more likely to have higher pelvis AIS (p = 0.001), type IV fractures, acetabular fractures and closed triradiate cartilage as compared to the conservative group. Type III fractures and open triradiate cartilage were significantly higher in the conservative group (p < 0.05). Patients with closed triradiate cartilage frequently sustained spine, head injuries, acetabular fracture and had higher mean ISS and pelvis AIS (p < 0.01) than the open group. However, the rate of in-hospital complications and mortality were comparable among different groups. The overall mortality rate was 2.5%.

Conclusion

PPF are uncommon and mainly caused by high-impact trauma associated with multisystem injuries. The majority of PPF are stable, despite the underlying high-energy mechanism. Management of PPF depends on the severity of fracture as patients with higher grade fractures require surgical intervention. Furthermore, larger prospective study is needed to understand the age-related pattern and management of PPF.

[Pediatric pelvic trauma]

The main injury mechanism of rare pelvic girdle injuries in children is high-energy trauma with a high rate of accompanying injuries and a mortality up to 6%. Anatomical features often result in complex pelvic trauma. Emergency treatment is based on established standards in adults. Definitive treatment is mostly conservative and implants adapted for children are increasingly used. Long-term consequences have to be considered, especially after unstable pelvic ring injuries. A correlation exists between clinical and radiological results. Due to the difficult radiological assessment, acetabular injuries are easily overlooked. The Salter-Harris classification appears to be prognostically useful. Most acetabular injuries can be treated conservatively. Considerable displacement or additional intra-articular injuries necessitate open reduction and internal fixation. Frequent follow-up examinations up to the end of the growth phase avoid posttraumatic acetabular dysplasia being overlooked.

Outcomes of Pediatric Pelvic Fractures: A Level I Trauma Center's 20-Year Experience

BACKGROUND

Pediatric pelvic fractures are rare. The contribution of pelvic fracture pattern, risk factors for associated injuries, and mortality are poorly defined in this population.

METHODS

Patients aged 0-17 with pelvic fractures at a level I trauma center over a 20-y period were reviewed. Fracture patterns were classified according to the Young-Burgess classification when applicable. Fractures were analyzed for location, pubic symphysis or sacroiliac widening, and contrast extravasation.

RESULTS

There were 163 pelvic fractures in 8758 admissions (incidence 2%). The most common associated injures were extremity fractures (60%, n = 98), abdominal solid organ (55%, n = 89), and chest (48%, n = 78), with the majority (61%, n = 99) sustaining injuries to multiple organs. Unstable fractures were associated with injures to the thorax (70% versus 40%), heart (15% versus 2%), and spleen (40% versus 18%), all P < 0.05. Nonpelvic operative interventions were required in 45% (n = 73) and were more common in unstable fractures (36% versus 19%), contrast extravasation (63% versus 26%), sacroiliac widening (36% versus 20%), and sacral fractures (39% versus 13%), all P < 0.05. Mortality was 13% and higher in males versus females (18% versus 5%), contrast extravasation (50% versus 3%), or sacroiliac/pubic symphysis widening (13% versus 2%) (all P < 0.05). Male gender (OR 6.03), brain injury (OR 6.18), spine injury (OR 5.06), and cardiac injury (OR 35.0) were independently associated with mortality (all P < 0.05).

CONCLUSIONS

Pediatric pelvic fractures are rare but critical injuries associated with significant morbidity and need for interventions. Increasing fracture severity corresponds to injuries to other body systems and increased mortality.