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Updated: May 2, 2026

Development of a Neonatal Rat Model for Brachial Plexus Birth Injury
Published on: March 27, 2026
The relationship between medical malpractice litigation and parent reports of patient function following neonatal
Emily A Eismann1, Andrea Bauer2, Scott H Kozin3
1Division of Orthopaedic Surgery, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue MLC 2017, Cincinnati, OH 45229. E-mail address for R. Cornwall: roger.cornwall@cchmc.org.
Insights
Medical malpractice litigation negatively impacts parent-reported outcomes for children with neonatal brachial plexus palsy, affecting function and pain perception. This highlights litigation as a key confounder in research.
Area of Science:
- Pediatric Orthopedics
- Medical Malpractice Law
- Patient-Reported Outcomes
Background:
- Patient-reported outcome measures (PROMs) are increasingly used in clinical research and care.
- Nonclinical variables can influence PROMs, necessitating careful consideration in data interpretation.
- Medical malpractice litigation, particularly following neonatal brachial plexus palsy, may confound parent or patient-reported outcomes.
Purpose of the Study:
- To investigate the impact of medical malpractice litigation on parent-reported outcomes in children with neonatal brachial plexus palsy.
- To determine if litigation status is an independent confounding variable in assessing functional outcomes.
Main Methods:
- A multicenter, case-control study involving patients aged 2-18 years with neonatal brachial plexus palsy.
- Matching of families with and without litigation based on age and injury severity.
- Comparison of parent-reported outcomes (Pediatric Outcomes Data Collection Instrument) between litigation and non-litigation cohorts.
Main Results:
- Twenty-two percent of patients were involved in medical malpractice lawsuits.
- Parents in the litigation cohort reported worse mobility, sports/physical function, and global function compared to the non-litigation cohort.
- Parents in active lawsuits reported greater pain; parent and patient reports differed significantly in the litigation cohort regarding upper-extremity and global function.
Conclusions:
- Litigation is associated with worse parent-reported functional outcomes and pain in children with neonatal brachial plexus palsy.
- Litigation status should be considered a confounding variable in neonatal brachial plexus palsy research utilizing parent-reported outcomes.
- Parents involved in litigation may require additional support to mitigate potential biases in outcome reporting.
Background:
The increasing use of patient-reported outcome measures in clinical research and care across all medical disciplines requires an understanding of the nonclinical variables that affect these measures. Participation in medical malpractice litigation, as is common following neonatal brachial plexus palsy, may be an important confounder of parent or patient-reported outcomes.
Methods:
This multicenter, case-control study includes patients two to eighteen years of age with neonatal brachial plexus palsy seen at three tertiary brachial plexus centers from January 1990 to December 2011. Public court records were searched for litigation details. Families with and without medical malpractice litigation were matched on age and injury severity (by Raimondi scale and Mallet classification). Parent or patient-reported outcomes, measured by the Pediatric Outcomes Data Collection Instrument, were compared between litigation and non-litigation cohorts.
Results:
Of 334 patients from eighteen states, seventy-five (22%) were plaintiffs in medical malpractice lawsuits. When matched on patient age and injury severity, parents reported their children to have worse mobility (p = 0.04), sports or physical function (p = 0.003), and global function (p = 0.02) in the litigation cohort compared with the non-litigation cohort. Parents in active lawsuits reported their children to have greater pain (p = 0.046) compared with children of parents in closed lawsuits, when controlling for patient age and injury severity. Outcomes scores simultaneously obtained from patients and parents differed in the litigation cohort, with parents reporting their children to have worse upper-extremity function (p = 0.03) and global function (p = 0.008) than their children reported.
Conclusions:
Litigation is associated with worse parent reports of children's function and pain following neonatal brachial plexus palsy, independent of age, injury severity, and the patients' own report of their function. Litigation status should be considered a confounding variable in the use of parent-reported outcomes in neonatal brachial plexus palsy research. Parents involved in litigation may benefit from additional support.

