Factors Associated With Nonaccidental Trauma Evaluation Among Patients Below 36 Months Old Presenting With Femur Fractures at a Level-1 Pediatric Trauma Center

Investigating the Determinants of Nonaccidental Trauma Evaluation in Pediatric Femur Fractures

BACKGROUND

Femoral fractures in children have the highest probability for abuse after skull fractures and humeral shaft fractures. However, the reported proportion of pediatric femur fractures that result from nonaccidental trauma (NAT) varies in the literature from 2% to 60%. The purpose of this study was to determine the patient characteristics associated with a physician's decision to conduct a NAT workup and challenge universal clinical practice guidelines stating that all children younger than 3 years with a diaphyseal femur fracture be evaluated for NAT.

METHODS

A retrospective review was conducted on patients aged 0 to 36 months diagnosed with a femur fracture between January 1, 2004, and April 9, 2019, at our institution. NAT was defined as a diagnosis of trauma that was nonaccidental in the medical chart after a positive workup by skeletal survey, ophthalmological examination, or other appropriate referral made by the institution's child abuse and neglect team. Patients with incomplete medical records were excluded.

RESULTS

A total of 299 patients were identified, and 22 were excluded. 71% (197/277) were screened for NAT. Patients younger than 1 year were significantly more likely to undergo a NAT workup (P = 0.009; Odds Ratio [OR], 2.3; 95% CI, 1.2 to 4.4) and receive a positive result from the NAT workup (P < 0.0005; OR, 11.3; 95% CI, 4.6 to 27.4). Additional injuries were also a significant predictor of a positive NAT workup (P < 0.001; OR, 5.3; 95% CI, 2.4 to 11.9). Patient race/ethnicity, sex, and fracture type were not markedly associated with the physician's decision to conduct a NAT workup.

CONCLUSIONS

Infants younger than 1 year with a femur fracture and children younger than 3 years presenting with a femur fracture and another injury are at increased risk of possible NAT. While clinical practice guidelines may minimize racial bias in NAT evaluation, this study demonstrates that universal NAT workups for walking-age children in the absence of other evidence of abuse may be unnecessary.

LEVEL OF EVIDENCE

This is a Level III retrospective cohort study.

Evidence From the USPSTF and New Approaches to Evaluate Interventions to Prevent Child Maltreatment

Importance

The United States Preventive Services Task Force (USPSTF) has considered the topic of prevention of child maltreatment multiple times over its nearly 40-year history, each time reaching the conclusion that the evidence is insufficient to recommend for or against interventions aimed at preventing this important health problem with significant negative sequelae before it occurs. In the most recent evidence review, which was conducted from August 2021 to November 2023 and published in March 2024, the USPSTF considered contextual questions on the evidence for bias in reporting and diagnosis of maltreatment in addition to key questions regarding effectiveness of interventions to prevent child maltreatment.

Observations

A comprehensive literature review found evidence of inaccuracies in risk assessment and racial and ethnic bias in the reporting of child maltreatment and in the evaluation of injuries concerning for maltreatment, such as skull fractures. When children are incorrectly identified as being maltreated, harms, such as unnecessary family separation, may occur. Conversely, when children who are being maltreated are missed, harms, such as ongoing injury to the child, continue. Interventions focusing primarily on preventing child maltreatment did not demonstrate consistent benefit or information was insufficient. Additionally, the interventions may expose children to the risk of harm as a result of these inaccuracies and biases in reporting and evaluation. These inaccuracies and biases also complicate assessment of the evidence for making clinical prevention guidelines.

Conclusions and Relevance

There are several potential strategies for consideration in future efforts to evaluate interventions aimed at the prevention of child maltreatment while minimizing the risk of exposing children to known biases in reporting and diagnosis. Promising strategies to explore might include a broader array of outcome measures for addressing child well-being, using population-level metrics for child maltreatment, and assessments of policy-level interventions aimed at improving child and family well-being. These future considerations for research in addressing child maltreatment complement the USPSTF's research considerations on this topic. Both can serve as guides to researchers seeking to study the ways in which we can help all children thrive.

Orthopaedic Diagnoses in the Black Pediatric Population

The Black pediatric population is one that has been historically underserved and continues to have unmet needs. Factors including lack of diversity in orthopaedic studies and in historical standards, such as bone age, may inadvertently lead to inferior care. There are certain conditions in this population for which the practicing orthopaedic surgeon should have a higher degree of suspicion, including slipped capital femoral epiphysis, Blount disease, and postaxial polydactyly. Systemic diseases with higher rates in this population have orthopaedic manifestations, including sickle cell disease, vitamin D deficiency, and obesity. Racial discrepancies in access to prenatal care can have orthopaedic consequences for babies, especially cerebral palsy and myelodysplasia. Racial discrepancy exists in evaluation for nonaccidental trauma. Increased awareness of these issues better prepares practitioners to provide equitable care.

Factors Associated With Referral of Children With a Femur Fracture to a Social Worker by an Orthopedist for Suspected Child Abuse

OBJECTIVES

This article explores factors associated with referral of children with a femur fracture to a social worker by an orthopedist for suspected child abuse.

METHODS

This retrospective chart review study included 131 children younger than 5 years who sustained a femur fracture and were hospitalized in a major 495-bed hospital located in the northern-central Israel from 2009 to 2021. Data on children who were referred to a social worker by the treating orthopedist and those who were not were compared.

RESULTS

More than half the children studied (58.8%, n = 77) were referred to a social worker by an orthopedist for suspected child abuse. However, only a fifth of these cases were eventually reported to the authorities. Male sex (odds ratio [OR], 2.44), younger age of the child (OR, 0.95), and spiral femur fracture type (OR, 5.30) increased the likelihood of referral. In addition, treatment of the child by an orthopedic specialist (as compared with an orthopedic resident; OR, 3.12) and lengthier professional experience of the treating orthopedist (OR, 1.08) increased the likelihood of referral.

CONCLUSIONS

Younger male children presenting with a spiral femur fracture have a higher likelihood to be referred to a social worker because of suspected child abuse by treating orthopedic specialists with lengthier professional experience. The findings point to the need to improve the capacity of orthopedic residents to report child abuse.

Detection of Elder Abuse Among Orthopedic Patients

Approximately 10% of US adults experience elder abuse, which often manifests as musculoskeletal and soft tissue injuries. The goal of our study was to determine the rate of elder abuse among orthopedic surgery patients and characterize which patients may be at an increased risk. National Inpatient Sample Healthcare Cost and Utilization Project data from 2001 to 2015 were parsed with the Clinical Classifications Software tool. Patients 60 years and older were identified by International Classification of Diseases, Ninth Revision (ICD-9), code for elder abuse. Primary orthopedic procedures and subsequent inpatient diagnoses and comorbidities were used to develop a binary logistic regression model to predict an elder's risk of abuse. Of a total of 20,532,211 admissions for an orthopedic procedure, 0.010% (2084) were classified as elder abuse. Patients with a classification of abuse more commonly were women (74.8% vs 60.6%) and from the lowest socioeconomic quartile by income (28.5% vs 21.7%). In addition, these patients had hospital stays that were twice as long (10.2 vs 5.3 days) and had higher admission mortality rates (4.4% vs 1.2%). No primary orthopedic procedures were associated with a higher risk of elder abuse. Nonorthopedic diagnoses made during admission that were associated with increased risk of abuse included superficial injury or contusion (odds ratio [OR], 3.252), chronic skin ulcer (OR, 3.119), nutritional deficiency (OR, 3.418), fluid and electrolyte disturbances (OR, 1.729), and delirium or dementia (OR, 2.210). The incidence of elder abuse among orthopedic surgery patients is significantly lower than national estimates. This finding warrants further investigation to determine whether it is a function of underreporting or differences in patient populations, given the 4-fold increase in mortality risk. [Orthopedics. 2022;45(1):50-56.].

Biomechanics of immature human cortical bone: A systematic review

The whole bone geometry, microstructure, and mechanical properties of mature human bone are widely reported; however, immature bone (0-18 years) has not been similarly robustly characterized. There is an interest in analyzing and predicting the mechanical loading conditions associated with long bone diaphyseal fractures attributed to trauma in children. Thus, understanding the mechanical properties of immature bone in a temporal reference frame is an essential first step to understand diaphyseal fractures of pediatric long bones. The purpose of this systematic review was to ask, what is the state of knowledge regarding the 1) evolution of whole bone geometry and microstructure of immature pediatric bone as a function of maturation and 2) cortical bone density and experimental quasi-static mechanical properties at the tissue level in the diaphyseal region of immature pediatric long bones? The systematic search yielded 36 studies of the whole bone geometry, microstructure, and mechanical properties of immature pediatric long bones. The elastic modulus, yield stress, and ultimate stress were shown to generally increase with maturation, whereas the yield strain was approximately invariant; however, the specific year-to-year progression of these properties could not be characterized from the limited studies available. The results of this systematic search indicate there is a dearth of knowledge associated with the biomechanics of cortical bone from immature pediatric long bones; it also provides a basis for computational studies of immature human long bones. Additional biomechanical studies of immature human bone are necessary to develop a robust catalogue, which can be used in broad applications to understand fracture mechanics, bone pathologies, and athletic injury in the pediatric setting.