Could Erb’s Palsy Have Been Prevented? Delivery Decisions That May Matter

When a newborn is diagnosed with Erb’s palsy, one of the first questions parents ask is whether the injury could have been prevented. The answer depends on what was known before and during labor, whether complications such as shoulder dystocia occurred, how the delivery team responded, and what the medical records show. Not every case of Erb’s palsy means something went wrong, but certain delivery decisions and documented events may be worth reviewing. This article explains what Erb’s palsy is, how it can happen during birth, which delivery choices may matter, and when families in New York may want to request medical records or speak with an attorney.

What Erb’s Palsy Is

Erb’s palsy is a type of brachial plexus birth palsy that affects nerves involved in shoulder and arm movement, and sometimes sensation. The brachial plexus is a network of nerves that runs from the spinal cord through the neck and into the arm. When those nerves are stretched, compressed, or torn during birth, the baby may have weakness or paralysis in the affected arm.

Erb’s palsy specifically involves injury to the upper portion of the brachial plexus, which controls shoulder and elbow movement. Babies with Erb’s palsy may have limited or no movement in the shoulder and upper arm, though hand and finger movement may be preserved. The severity can range from temporary nerve injury that improves over time to more serious nerve damage that may require specialist monitoring, therapy, or surgery.

The diagnosis is usually made shortly after birth when medical staff or parents notice that the baby is not moving one arm normally. A pediatrician, pediatric neurologist, orthopedic specialist, or brachial plexus clinic may examine the baby and decide whether imaging, therapy referral, or later nerve testing is needed.

How Erb’s Palsy Can Happen During Birth

Erb’s palsy is often associated with difficult deliveries, including deliveries complicated by shoulder dystocia, but the presence of Erb’s palsy alone does not prove exactly how or why the nerve injury occurred. This complication is called shoulder dystocia. When shoulder dystocia happens, the delivery team must act quickly to free the shoulder and deliver the baby safely. During shoulder dystocia, the baby’s neck and shoulder area may be exposed to traction or pressure as the delivery team works to free the shoulder. Whether those forces were appropriate, excessive, or unavoidable depends on the facts documented in the delivery record.

Not all brachial plexus injuries are caused by excessive traction. Medical literature recognizes that neonatal brachial plexus palsy can occur from more than one mechanism, including maternal or intrauterine forces, and is not always caused by clinician-applied traction. This is one reason why the presence of Erb’s palsy alone does not prove that medical negligence occurred.

However, the way a delivery team recognizes and manages shoulder dystocia can matter. If the delivery was complicated and the baby was diagnosed with Erb’s palsy, families may want to understand what happened in the delivery room and whether the standard of care was met.

What Is Shoulder Dystocia?

Shoulder dystocia is a delivery emergency in which the baby’s anterior shoulder does not pass under the mother’s pubic bone after the head is delivered. ACOG describes shoulder dystocia as an unpredictable and unpreventable obstetric emergency, and notes that known risk factors have poor predictive value.

Risk factors that may be considered include maternal diabetes, suspected large fetal size, prior shoulder dystocia, prolonged second stage of labor, and operative vaginal delivery with forceps or vacuum. However, many shoulder dystocia cases happen without any known risk factors, and many high-risk deliveries do not result in dystocia.

When shoulder dystocia occurs, the delivery team may use specific maneuvers to help free the shoulder, such as repositioning the mother’s legs, applying suprapubic pressure, or attempting internal rotational maneuvers. The goal is to deliver the baby as quickly and safely as possible while minimizing the risk of injury to both mother and baby.

The way these maneuvers are performed and documented can be important in understanding whether the injury may have been preventable. Medical records should include details about when dystocia was recognized, which maneuvers were used, how much time elapsed, and what the baby’s condition was immediately after birth.

Delivery Decisions That May Matter in an Erb’s Palsy Review

Several delivery decisions and actions may be reviewed when families ask whether Erb’s palsy could have been prevented. These decisions do not automatically prove negligence, but they may be relevant to understanding what happened and whether the medical team followed accepted standards of care.

Key areas that may be examined include:

• Whether shoulder dystocia was recognized promptly and managed according to clinical guidelines. Delays in recognizing dystocia or failure to use appropriate maneuvers may increase the risk of injury.

• The amount and direction of traction applied during delivery. Some traction may be part of delivery, but excessive downward or lateral traction on the baby’s head or neck may raise concern when a brachial plexus injury follows.

• The use of forceps or vacuum extraction. These instruments can assist delivery in certain situations, but improper use or continued attempts after failures may increase injury risk.

• Fetal monitoring during labor. Concerning fetal monitoring patterns may be relevant to whether the delivery team should have changed the delivery plan, escalated care, or considered urgent delivery.

• The decision to proceed with vaginal delivery versus performing a cesarean section. This is complex because not every difficult delivery requires a C-section, and hindsight can make it appear that a C-section was always the safer choice.

Medical experts often review delivery records to assess these areas and determine whether the actions taken were appropriate given the circumstances.

When a C-Section May Come Up in the Discussion

A cesarean section may reduce the risk of shoulder dystocia in selected high-risk situations, but it does not eliminate the possibility of brachial plexus injury and is not recommended for every pregnancy. However, C-sections carry their own risks and are not medically indicated in every delivery.

Whether a C-section should have been performed depends on the facts of the individual case. Factors that may make cesarean delivery part of the discussion include suspected macrosomia, maternal diabetes, prior shoulder dystocia, labor that is not progressing, or fetal monitoring concerns that suggest the baby may not be tolerating labor.

If the medical record shows significant risk factors, fetal monitoring concerns, or labor problems that were documented but not addressed, that may be worth reviewing with a medical expert. On the other hand, if the delivery appeared to be progressing normally and shoulder dystocia was sudden and unpredictable, the decision to proceed with vaginal delivery may have been appropriate.

It is important to understand that not every Erb’s palsy case would have been prevented by a C-section. Some brachial plexus injuries can occur even during cesarean deliveries, so the key question is whether the delivery decision and response to complications were reasonable based on what was known at the time. The key question is whether the decision-making process was reasonable based on what was known at the time.

What Medical Records Can Show

Medical records are the most important source of information when families want to understand what happened during delivery. Records that may be relevant include the labor and delivery notes, fetal monitoring strips, nursing notes, operative reports if instruments were used, and the newborn’s initial exam and discharge summary.

• Labor and delivery notes should document the progression of labor, any complications, and the steps taken to manage them. If shoulder dystocia occurred, the notes should describe when it was recognized, which maneuvers were performed, how long the dystocia lasted, and the baby’s condition after delivery.

• Fetal monitoring strips show the baby’s heart rate during labor and can reveal signs of distress. Concerning patterns before delivery may be relevant to whether earlier intervention was needed.

• Nursing notes may include observations about the mother’s condition, the baby’s position, and communications between the delivery team, providing context not always found in the physician’s note.

• The newborn exam and follow-up notes from pediatric specialists will document the Erb’s palsy diagnosis, the severity of the injury, and the treatment plan.

Families have the right to request copies of their medical records. In New York, patients and other qualified persons have the right to access patient information under Public Health Law Section 18, although some limits and procedures apply. Parents should request complete records, including all labor and delivery documentation and all newborn records.

Signs Parents May Notice After Birth

Parents may notice signs of Erb’s palsy in the hours or days after birth. The most common sign is that the baby does not move one arm normally. The affected arm may hang limp at the side, with the hand turned inward. The baby may not be able to lift the arm or bend the elbow on the affected side.

Some babies may also have a weakened grasp on the affected side, though hand and finger movement may be less affected than shoulder and elbow movement. Parents may notice that the baby startles asymmetrically, with one arm moving normally and the other staying still.

If the injury is mild, some movement may improve over time, but the recovery timeline depends on the type and severity of nerve injury. More severe injuries may show little or no improvement without treatment. Physical therapy or occupational therapy may be recommended to maintain range of motion, support function, and monitor recovery.

Parents should follow up with their pediatrician and may be referred to a pediatric neurologist, orthopedic specialist, or physical therapist. Early intervention can help maximize recovery and prevent complications such as joint contractures or muscle atrophy.

If parents have concerns about how the injury happened or whether it could have been prevented, they may want to request the medical records and speak with an attorney who handles birth injury cases in New York.

When Families May Want a Medical or Legal Review in New York

Not every case of Erb’s palsy is the result of medical negligence, but families may want a professional review if they have questions about what happened during delivery. A review may be appropriate if the medical records show that shoulder dystocia occurred, if the delivery was prolonged or difficult, if instruments were used, or if there were signs of fetal distress before delivery.

In New York, medical malpractice and birth injury claims are subject to specific legal rules and deadlines. The time period can depend on the facts of the case, the child’s age, and the type of claim, so families with concerns should seek legal guidance before waiting too long. Because these rules can be complex, it is important to speak with an attorney as soon as possible if a family is considering legal action.

An attorney who handles birth injury cases can review the medical records, consult with medical experts, and help the family understand whether the facts may support a claim. The attorney can also explain what evidence would be needed, what the legal process involves, and what the potential outcomes might be.

Medical experts play a key role in these cases. A qualified expert can review the labor and delivery records, assess whether the standard of care was met, and offer an opinion about whether the injury may have been preventable. The expert’s analysis is based on accepted medical guidelines and the specific facts of the case.

Families should understand that not every difficult delivery or bad outcome means malpractice occurred. The legal question is whether the medical team’s actions fell below the accepted standard of care and whether that deviation caused the injury. Understanding those elements usually requires careful review of the records and input from qualified medical experts.

New York Birth Injury Questions Parents Commonly Ask

What Is Erb’s Palsy?

Erb’s palsy is a type of brachial plexus birth palsy that affects nerves involved in shoulder and upper arm movement. It is often associated with difficult deliveries and shoulder dystocia, but it does not automatically prove that the delivery team did something wrong.

Is Erb’s Palsy Always Caused by Medical Negligence?

No. Erb’s palsy can occur even when the delivery team follows all appropriate guidelines and acts quickly to manage shoulder dystocia. Some brachial plexus injuries may result from forces that occur naturally during labor, before any delivery maneuvers are performed. However, in some cases, the injury may have been preventable if different decisions had been made or if the standard of care was not met. A review of the medical records and consultation with a medical expert can help determine whether negligence may have played a role.

What Is Shoulder Dystocia and Why Does It Matter?

Shoulder dystocia is a delivery emergency in which the baby’s shoulders do not deliver with the usual gentle traction after the head is born and additional maneuvers are needed. It matters because the response to shoulder dystocia, including the timing, maneuvers used, traction applied, and newborn exam findings, may be important when reviewing how an Erb’s palsy injury occurred.

Can a C-Section Prevent Erb’s Palsy?

In selected high-risk situations, cesarean delivery may be part of the discussion, especially when there are concerns such as suspected macrosomia, maternal diabetes, prior shoulder dystocia, stalled labor, or fetal monitoring concerns. However, C-section is not recommended for every pregnancy with risk factors, and it does not eliminate every possibility of brachial plexus injury.

What Records Should Parents Ask for After a Difficult Delivery?

Parents should request complete copies of the labor and delivery records, fetal monitoring strips, nursing notes, shoulder dystocia documentation, operative notes if forceps or vacuum were used, newborn exam records, discharge summary, and any pediatric neurology, orthopedic, therapy, or follow-up records.

How NYBI Can Help Families Understand Their Options

New York Birth Injury is an educational resource designed to help families understand birth injuries, medical care, and legal options. The site provides information about different types of birth injuries, how they are diagnosed and treated, and what families may want to consider if they have concerns about the care their child received.

NYBI does not provide medical or legal advice, but the site can help families learn about the issues that may arise in birth injury cases and the questions they may want to ask medical providers or attorneys. The goal is to give families clear, accurate information so they can make informed decisions about their child’s care and their legal options.

Families who want to speak with an attorney about a possible birth injury case can use NYBI to learn what to expect from the legal process, what kinds of records and information may be needed, and how to find a lawyer with experience in New York birth injury law.

Moving Forward After an Erb’s Palsy Diagnosis

If your child has been diagnosed with Erb’s palsy, focus first on medical follow-up with your pediatrician, specialists, and therapy team. At the same time, it is reasonable to request the labor and delivery records, fetal monitoring strips, shoulder dystocia documentation, and newborn exam records so you can better understand what happened and decide whether a medical or legal review is appropriate.

This article is for educational and informational purposes only. It is not medical advice and cannot replace evaluation from your child’s pediatrician, specialist, or therapy team. If you have questions about your child’s diagnosis, treatment, or recovery, speak with a qualified healthcare provider. This article is also not legal advice. If you have questions about whether your child’s Erb’s palsy may have been preventable, consider consulting an attorney who handles birth injury cases in New York.