Shoulder dystocia is an obstetric emergency that occurs when the fetal shoulder becomes impacted behind the maternal pubic symphysis after delivery of the fetal head, preventing the normal completion of delivery. Shoulder dystocia expert witness cases typically center on two related questions: whether the clinical team recognized and responded to the emergency appropriately, and whether the brachial plexus injury claimed by the plaintiff was caused by the delivery maneuvers used or represents a naturally occurring injury that can arise during any shoulder dystocia regardless of the quality of care.
Both questions require nuanced analysis. Shoulder dystocia is largely unpredictable — it can occur without warning in patients with no identifiable risk factors — and brachial plexus injuries can result from maternal expulsive forces alone, prior to or independent of any traction applied by the delivering physician. An objective expert evaluation must address both the standard of care for managing the emergency and the biomechanics of brachial plexus injury.
Medical and Standard-of-Care Considerations
The standard of care for shoulder dystocia management focuses on systematic application of recognized maneuvers in a calm and organized manner. Clinical considerations include:
- Recognition of shoulder dystocia — the "turtle sign," inability to complete delivery of the body after delivery of the head, and documentation of the emergency
- First-line maneuvers — McRoberts maneuver (hyperflexion of maternal thighs) and suprapubic pressure, which together resolve the majority of shoulder dystocia cases
- Second-line maneuvers — Rubin II, Woods screw, Gaskin (all-fours) maneuver, and deliberate posterior arm delivery
- Last-resort maneuvers — Zavanelli maneuver and intentional clavicle fracture in cases unresponsive to other techniques
- The importance of avoiding fundal pressure during shoulder dystocia management, which can worsen impaction
- Episiotomy — its role (primarily for access and maneuvering, not for bony dystocia itself)
- Head-to-body delivery interval and its clinical significance in the context of fetal oxygenation during the emergency
- Documentation of the emergency — time of recognition, maneuvers performed, sequence and response
Issues Commonly Evaluated in Shoulder Dystocia Litigation
Claims involving shoulder dystocia and brachial plexus injury frequently raise the following questions requiring expert review:
- Whether the delivering physician correctly identified shoulder dystocia and called for additional assistance promptly
- Whether the appropriate maneuvers were performed in a reasonable sequence and with appropriate technique
- Whether fundal pressure was applied during the shoulder dystocia, which is considered a deviation from accepted practice
- Whether excessive lateral traction was applied to the fetal head — a disputed and technically difficult question that often generates conflicting expert opinions
- Whether the brachial plexus injury was caused by clinician traction or resulted from intrinsic maternal expulsive forces, which is a central biomechanical debate in this area of litigation
- Whether risk factors for macrosomia or shoulder dystocia were identified antepartum and whether counseling or alternative delivery planning was appropriate
Medical Records Commonly Reviewed
- Prenatal records including third-trimester growth ultrasound and estimated fetal weight documentation
- Labor and delivery records including second-stage progress notes
- Delivery note documenting the shoulder dystocia event, maneuvers attempted, and timing
- Nursing notes documenting their observations and actions during the emergency
- Neonatal records including physical examination findings at birth
- Pediatric orthopedic and neurologic evaluation records
- Physical and occupational therapy records relevant to brachial plexus recovery
Expert Review of the Case
Dr. Yusria Malik, MD, MPH, FACOG reviews shoulder dystocia cases with an understanding of both the clinical standard for emergency management and the medical literature on brachial plexus injury causation. Her analysis addresses:
- Whether the emergency was recognized and managed in accordance with accepted obstetric practice
- Whether the documentation of the delivery is internally consistent and consistent with the claimed sequence of events
- The clinical plausibility of the alleged mechanism of injury given the documented maneuvers and delivery course
- Causation within the scope of obstetric expertise, noting where additional specialty opinions may be relevant
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