Shoulder Dystocia Birth Injury

What Is Shoulder Dystocia?

Shoulder dystocia is a birth complication that occurs during vaginal delivery when the baby's anterior shoulder becomes impacted behind the mother's pubic bone after the head has been delivered. When this happens, routine delivery is impossible, and the obstetrician must perform specific emergency maneuvers to free the shoulder and complete the delivery. Shoulder dystocia is a time-critical emergency — every minute of delay increases the risk of permanent nerve injury or brain damage to the baby.

In New York City hospitals, where tens of thousands of babies are delivered each year, shoulder dystocia occurs in approximately 0.5% to 1.5% of vaginal deliveries. While many cases are managed without lasting harm, improper management can result in devastating, lifelong injuries including brachial plexus injury (Erb's palsy), cerebral palsy, and even neonatal death.

How Shoulder Dystocia Causes Birth Injuries

Brachial Plexus Injury and Erb's Palsy

The brachial plexus is a network of nerves that originates in the spinal cord (C5-T1) and travels through the neck and shoulder into the arm. These nerves control movement and sensation in the shoulder, arm, and hand. When excessive lateral traction (sideways pulling) is applied to the baby's head and neck during a shoulder dystocia delivery, the brachial plexus nerves can stretch, rupture, or avulse (tear from the spinal cord).

The most common brachial plexus injury is Erb's palsy (upper trunk injury), which affects the shoulder and upper arm — the baby's arm hangs limp at the side with the palm rotated backward. Klumpke's palsy (lower trunk injury) affects the lower arm, wrist, and hand. In the most severe cases, total plexus injury paralyzes the entire arm.

While some brachial plexus injuries resolve within 3-6 months as nerves heal naturally, others cause permanent disability requiring nerve graft surgery, tendon transfers, and years of occupational and physical therapy. The cost of lifelong care for a child with permanent brachial plexus injury can exceed $1 million.

Brain Damage from Oxygen Deprivation

If shoulder dystocia is not resolved quickly, the baby may suffer oxygen deprivation. The umbilical cord can become compressed between the baby's body and the mother's pelvis, cutting off blood and oxygen supply. Prolonged hypoxia (oxygen deprivation) can cause hypoxic-ischemic encephalopathy (HIE) — brain damage that can lead to cerebral palsy, developmental delays, cognitive impairment, and seizure disorders.

The risk of permanent brain damage increases significantly when shoulder dystocia lasts more than 5-7 minutes. This is why obstetricians are trained to resolve shoulder dystocia rapidly using standardized maneuvers.

Bone Fractures and Other Injuries

During shoulder dystocia delivery, the baby's clavicle (collarbone) or humerus (upper arm bone) may fracture — either from the impaction itself or from the delivery maneuvers. While many fractures heal without long-term complications, some require surgical intervention and can cause nerve damage.

Risk Factors for Shoulder Dystocia

Obstetricians are trained to identify risk factors for shoulder dystocia before delivery. When these risk factors are present, the physician should counsel the patient about the risks and consider whether an elective cesarean section is appropriate. Key risk factors include:

• Fetal macrosomia: Baby estimated to weigh more than 4,000-4,500 grams (8.8-9.9 lbs)
• Maternal diabetes: Diabetic mothers have babies with larger shoulder-to-head ratios, increasing dystocia risk
• Post-term pregnancy: Delivering after 40 weeks increases baby size
• Prior shoulder dystocia: History of shoulder dystocia increases recurrence risk by 10-15%
• Prolonged second stage of labor: Extended pushing time
• Operative vaginal delivery: Use of forceps or vacuum extraction during delivery
• Maternal obesity: BMI greater than 30
• Excessive weight gain during pregnancy

Failure to identify these risk factors, failure to counsel the patient about the option of elective C-section, or failure to have appropriate personnel present for a high-risk delivery may constitute medical negligence.

Proper Management: Standard of Care for Shoulder Dystocia

The standard of care for managing shoulder dystocia is well-established. The obstetrician should:

1. Recognize the dystocia immediately — the "turtle sign" (the baby's head retracts back into the birth canal after emerging) is a classic indicator.

2. Call for help — summon additional obstetricians, nursing staff, anesthesia, and a neonatologist.

3. Perform the McRoberts maneuver — hyperflex the mother's hips toward her abdomen to flatten the sacrum and rotate the pubic symphysis, which can free the impacted shoulder.

4. Apply suprapubic pressure — an assistant applies pressure above the pubic bone to rotate the baby's anterior shoulder.

5. Perform rotational maneuvers — the Rubin maneuver (internally rotating the anterior shoulder) or the Woods' corkscrew maneuver (rotating the posterior shoulder to anterior).

6. Deliver the posterior arm — reach in and sweep the posterior arm across the baby's chest to deliver it first, which reduces the shoulder diameter.

7. Last-resort maneuvers — if all else fails, perform a symphysiotomy, intentional clavicle fracture, or emergency Zavanelli maneuver (pushing the head back in and performing a C-section).

What Should Never Be Done

• Excessive traction (pulling) on the baby's head — this is the primary cause of brachial plexus injury
• Fundal pressure (pushing on the top of the uterus) — this worsens the impaction and can cause uterine rupture
• Excessive force during maneuvers — nerve injuries result from excessive force, not the dystocia itself

When Shoulder Dystocia Constitutes Medical Malpractice

Shoulder dystocia malpractice claims in New York typically involve one or more of the following:

• Failure to anticipate: Not identifying risk factors (macrosomia, diabetes, prior history) that should have prompted C-section counseling
• Improper delivery technique: Applying excessive traction or fundal pressure instead of the standard McRoberts and Rubin maneuvers
• Delayed response: Not recognizing the dystocia quickly or not calling for help promptly
• Inadequate team preparation: Not having anesthesia or a neonatologist available for a high-risk delivery
• Failure to document: Not documenting the time of diagnosis, maneuvers performed, and personnel present

New York Legal Framework

Statute of Limitations — CPLR § 208 (Infancy Toll)

Under New York law, the statute of limitations for medical malpractice is generally 2.5 years under CPLR § 214-a. However, for injuries to infants (children under 18), CPLR § 208 tolls the statute of limitations until the child's 18th birthday — but cannot extend the filing deadline beyond the child's 10th birthday in most cases.

This means that for shoulder dystocia injuries, families may have up to 10 years from the date of birth to file a claim. However, earlier filing is always recommended to preserve evidence and witness testimony.

Certificate of Merit — CPLR § 3012-a

Every medical malpractice complaint in New York must be accompanied by a Certificate of Merit under CPLR § 3012-a, confirming that the plaintiff's attorney has reviewed the case with a board-certified obstetrician and found a reasonable basis for the claim.

Wrongful Death — EPTL § 5-4.1

If the baby died as a result of shoulder dystocia complications, the family has 2 years from the date of death to file a wrongful death claim under EPTL § 5-4.1.

MDLaw Firm Results

MDLaw Firm has successfully represented families in shoulder dystocia and brachial plexus injury cases across New York City. Our results include:

• $4.5 million settlement for a child with permanent Erb's palsy caused by excessive traction during delivery at a Brooklyn hospital
• $3.2 million verdict against a Manhattan obstetrician who failed to identify fetal macrosomia and recommend C-section
• $2.8 million settlement for a baby who suffered HIE and cerebral palsy after a prolonged shoulder dystocia at a Bronx municipal hospital

(Prior results do not guarantee a similar outcome. Each case is evaluated on its individual facts.)

Why Choose MDLaw for Your Shoulder Dystocia Case

MDLaw Firm has extensive experience handling shoulder dystocia and brachial plexus injury cases in New York. Our team:

• Works with board-certified obstetricians and maternal-fetal medicine specialists to review delivery records
• Understands the clinical standards for shoulder dystocia recognition and management
• Has a proven track record of securing substantial settlements and verdicts
• Handles all birth injury cases on a contingency fee basis — you pay nothing unless we recover compensation

If your child suffered a brachial plexus injury, Erb's palsy, or brain damage during a shoulder dystocia delivery in New York, contact MDLaw Firm at 347-524-5777 for a free consultation.