When a baby is born with Erb’s palsy, parents often feel isolated and unsure whether this is something rare or something doctors should have known how to prevent.
Erb’s palsy is uncommon enough that most families have never heard of it before their own child is diagnosed, but common enough that pediatric specialists, physical therapists, and hospitals across New York see it regularly.
Understanding how it happens, and how often, is the first step to understanding whether your child’s injury was preventable.
Prior results do not guarantee a similar outcome.
What Do the Numbers Actually Show?
Incidence figures vary across studies depending on methodology, but the most authoritative U.S. data comes from large national database studies.
Year | Finding |
|---|---|
Foad et al. analyzed over 11 million births and found 1.51 cases per 1,000 live births | |
A follow-up study tracking the same national database from 1997 to 2012 found the rate declined about 47%, from 1.7 to 0.9 per 1,000, tracking rising cesarean rates | |
Van der Looven et al. pooled 22 studies and nearly 29.4 million births, finding an overall incidence of 1.74 per 1,000 | |
Chauhan et al. reviewed 63 studies and estimated roughly 5,000 new U.S. cases per year, 580 to 1,050 involving permanent injury | |
The same review estimated that 63,000 American adults currently live with brachial plexus impairment dating back to their own birth | |
New York State recorded 202,667 live births statewide, per the Department of Health’s vital statistics |
New York doesn’t publish its own Erb’s palsy-specific statistics, but it’s not a hypothetical problem for New York courts.
In one Queens case, Matter of Tapia v. New York City Health & Hospitals Corp., a child bornl was diagnosed with shoulder dystocia and brachial plexus injury from the delivery itself.
What Exactly Is Erb’s Palsy?
Erb’s palsy is the most common type of brachial plexus birth injury, affecting the upper portion of the nerve bundle that runs from the neck through the shoulder and down the arm, specifically the C5 and C6 nerve roots.
When these nerves are stretched, compressed, or torn during a difficult delivery, the baby can lose the ability to move the shoulder and bend the elbow.
Parents often first notice the arm hanging limply at the baby’s side, with the elbow straight and the hand turned inward, sometimes called the “waiter’s tip” position.
Severity varies widely. In the mildest cases, called neuropraxia, the nerves are stretched and bruised but recover on their own within weeks or months. In more severe cases, the nerve fibers can be torn or separated from the spinal cord entirely, an injury that typically requires surgery and can result in permanent disability.
What Causes Erb’s Palsy During Delivery?
Erb’s palsy is strongly associated with a handful of identifiable risk factors, most of which are known or knowable before delivery even begins.
The same 2020 meta-analysis covering nearly 29.4 million births quantified just how strongly each factor is linked to the injury: shoulder dystocia carried an odds ratio of 115, macrosomia (a larger than average baby) an odds ratio of 9.75, gestational diabetes 5.33, instrument-assisted delivery with forceps or a vacuum extractor 3.8, and breech presentation 2.49.
The same analysis found cesarean delivery to be strongly protective, cutting the odds to roughly a tenth of what they’d otherwise be, which helps explain why rising cesarean rates have tracked with falling Erb’s palsy rates nationally.
Shoulder dystocia, when the baby’s shoulder becomes stuck behind the mother’s pubic bone after the head has already delivered, is by far the strongest risk factor. It’s a genuine obstetric emergency, but the technique used to resolve it makes all the difference between a safe delivery and a nerve injury.
Macrosomia, a larger than average baby, and maternal diabetes, whether pre-existing or gestational, are both strongly linked, often together, since diabetic pregnancies frequently produce babies with disproportionately large shoulders relative to their head size.
Instrument-assisted delivery with forceps or a vacuum extractor carries increased risk, particularly if the team continues pulling rather than moving to a cesarean delivery when progress stalls.
Prolonged labor, especially a long second stage, a prior delivery involving shoulder dystocia or a large baby, and breech presentation all raise the risk in ways that should prompt extra preparation.
What Is the Standard of Care for Managing Shoulder Dystocia?
Obstetric guidelines describe a specific sequence of maneuvers for freeing a stuck shoulder without pulling on the baby’s head and neck.
This typically starts with the McRoberts maneuver, hyperflexing the mother’s legs against her abdomen, combined with suprapubic pressure applied above the pubic bone.
If that doesn’t resolve it, more advanced techniques like manually rotating the baby’s shoulders or delivering the posterior arm first come next.
What these techniques have in common is that none of them involve pulling harder on the baby’s head, which is exactly the force that damages the brachial plexus.
When Does Erb’s Palsy Point to Medical Negligence?
Not every case of Erb’s palsy involves malpractice, shoulder dystocia is a real emergency, and even appropriate care can’t prevent every injury.
But a few patterns raise real questions about whether the standard of care was met.
Continuing to apply downward or lateral traction to the baby’s head and neck once the shoulder is stuck, rather than using the recognized maneuvers described above, is a common thread in these cases.
So is failing to plan ahead when multiple risk factors were already known, for instance, a mother with diabetes and an estimated fetal weight well above average, without a documented discussion of the risks or a plan for a possible cesarean delivery.
The delivery record itself often tells this story, whether the standard maneuvers were documented, how much traction was applied, and how the team responded once the shoulder became stuck are all central questions in evaluating whether the injury was preventable.
If you or a family member may have been harmed by a doctor's error in New York, the team at Porter Law Group can review the medical records and your options at no cost.
What Are the Key Deadlines in a New York Erb’s Palsy Case?
Situation | Deadline | Rule |
|---|---|---|
Child’s claim against a private hospital, doctor, or provider | The earlier of age 18 plus 2.5 years, or 10 years from the malpractice (in practice, almost always the 10-year cap for a birth injury) | CPLR 208, CPLR 214-a |
Notice of claim if a public or municipal hospital was involved | 90 days from the injury; no automatic toll just because the child is a minor, though courts can permit late notice in limited circumstances | |
Lawsuit itself against a public or municipal hospital, once notice is filed | Generally 1 year and 90 days, subject to the same infancy toll described above | General Municipal Law 50-i |
Parent’s own derivative claim | 2.5 years from the date of the malpractice, not extended by the child’s infancy | CPLR 214-a |
Two New York Court of Appeals decisions settle exactly how this 10-year cap is measured. Matter of Daniel J. v. New York City Health & Hospitals Corp. confirmed that the 10 years runs from the date of the negligent act itself, not from when treatment for the injury eventually ends.
Because Erb’s palsy is usually apparent right at birth, unlike some birth injuries that take months or years to become clear, families often have an earlier opportunity to start investigating what happened.
That’s still worth acting on promptly, since expert evaluation of the delivery records and the medical experts required to support a claim take real time to assemble well before any filing deadline arrives.
Summing It Up
Erb’s palsy is uncommon enough that most families have never encountered it before their own child’s diagnosis, but common enough that it affects an estimated several thousand babies nationwide each year, including hundreds in New York.
Porter Law Group has built its reputation on trial-tested representation for New York families in birth injury and medical malpractice cases, and our attorneys work on a contingency fee basis, meaning you pay nothing unless we win.
If your child was diagnosed with Erb’s palsy after a difficult delivery, reach out to discuss what happened and what your legal options look like.
Call 833-PORTER9 or email info@porterlawteam.com to schedule a free consultation.
Prior results do not guarantee a similar outcome.
Frequently Asked Questions
Will my baby fully recover from Erb’s palsy?
Many do, particularly with early physical therapy, but recent research suggests fewer babies fully recover than older estimates indicated, with a meaningful share experiencing lasting deficits. Ongoing monitoring through the first several months matters even if early symptoms seem mild.
Is Erb’s palsy always caused by medical negligence?
No. Shoulder dystocia is a genuine emergency, and not every case reflects a departure from the standard of care. Whether it does depends on factors like whether known risk factors were addressed beforehand and whether recognized maneuvers, rather than excessive traction, were used once the shoulder became stuck.
How long do I have to file an Erb’s palsy claim in New York?
Generally, the earlier of age 18 plus 2.5 years, or 10 years from the malpractice, under CPLR 208. Because the injury happens at birth, the 10-year cap is almost always the deadline that actually applies.
What records matter most in an Erb’s palsy case?
The delivery record documenting how shoulder dystocia was managed, including which maneuvers were attempted and how much traction was used, along with prenatal records showing whether risk factors like macrosomia or maternal diabetes were identified beforehand.
How much does a birth injury lawyer cost in New York?
Most plaintiff-side medical malpractice attorneys, including Porter Law Group, work on a contingency fee basis. You pay nothing upfront, and there is no fee unless the firm recovers compensation on your behalf.
This article is for informational purposes only and does not constitute legal advice. Attorney advertising. Prior results do not guarantee similar outcomes.
