What is a Brachial Plexus Injury?

Written By Justin A. Villeneuve

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Updated June 13, 2024

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In Ontario, brachial plexus injuries can occur during birth, motor vehicle accidents, and sports activities. According to the Ontario Ministry of Health and Long-Term Care, there were 270 reported cases of brachial plexus injuries in Ontario hospitals in 2019-2020. Additionally, the Canadian Institute for Health Information reports that between 2015 and 2019, there were 1,067 hospitalizations for brachial plexus injuries in Ontario. It is important for individuals who have suffered a brachial plexus injury to seek medical attention as soon as possible to prevent further damage and to receive proper treatment.

What is a Brachial Plexus Injury?

The brachial plexus is a network of nerves that originates from the spinal cord and extends through the neck and shoulder region into the arm. It is responsible for providing sensory and motor function to the muscles and skin of the upper limbs. The brachial plexus is comprised of five major nerves, each with its own specific function. These nerves include the axillary nerve, the musculocutaneous nerve, the radial nerve, the median nerve, and the ulnar nerve.

Various factors can cause damage to the brachial plexus, including trauma, inflammation, and tumors. The most common cause of brachial plexus injury is trauma, which can occur during birth, sports, or accidents. Other factors that can increase the risk of brachial plexus injury include obesity, smoking, and repetitive motions.

The associated risks of brachial plexus injury depend on the severity and location of the damage. Mild injuries may cause temporary weakness or numbness, while more severe injuries can result in permanent paralysis of the affected limb. Treatment options for brachial plexus injury vary depending on the severity of the damage, but may include physical therapy, surgery, or a combination of both. If you suspect that you have sustained a brachial plexus injury, it is essential to seek medical attention immediately to prevent further damage and to receive appropriate treatment.

Brachial Plexus Injuries During Birth

Brachial plexus injuries can occur in various ways during childbirth. Some common risk factors include:

  1. Shoulder Dystocia: This occurs when the baby’s shoulders get lodged behind the mother’s pubic bone during delivery, causing excessive pressure on the brachial plexus.
  2. Prolonged Labor: Lengthy labor and difficult deliveries may increase the chances of brachial plexus injuries.
  3. Assisted Delivery: The use of forceps or vacuum extraction during delivery can potentially lead to brachial plexus injuries if excessive force is applied.

In Ontario, the prevalence of brachial plexus injuries varies each year. According to the Canadian Medical Protective Association, approximately 0.3% to 1% of live births in Canada are affected by brachial plexus injuries. While specific statistics for Ontario may not be readily available, it is crucial to recognize that even a small percentage represents a significant number of affected families.

Shoulder Dystocia Caused by Brachial Plexus at Birth

Shoulder dystocia is a complication that can occur during childbirth when one or both of the baby’s shoulders get stuck behind the mother’s pubic bone. This can lead to a difficult delivery and potentially serious health risks for both the mother and baby. 

According to the Canadian Medical Association Journal, shoulder dystocia occurs in approximately 0.6% to 1.4% of all vaginal deliveries. In Canada, there are an estimated 380,000 births per year, which means that between 2,280 and 5,320 cases of shoulder dystocia occur annually. 

It is important to note that the incidence of shoulder dystocia can vary depending on various factors such as maternal age, weight, and gestational diabetes. Additionally, healthcare providers can take preventive measures to reduce the risk of shoulder dystocia during childbirth.

Medical Malpractice and Brachial Plexus

Determining whether a brachial plexus injury is caused by medical malpractice requires a thorough investigation of the circumstances surrounding the delivery. Not every case of brachial plexus injury can be attributed to negligence, as natural complications can also occur during childbirth. However, medical malpractice may be considered if there is evidence of:

  • Failure to anticipate or respond to risk factors: Healthcare providers have a duty to identify and manage potential risk factors during labor and delivery. Negligence may arise if they fail to recognize and take appropriate action when faced with known risk factors for brachial plexus injuries.
  • Improper delivery techniques: Improper use of forceps, vacuum extraction, or excessive force during delivery can contribute to brachial plexus injuries. Healthcare providers must be trained and proficient in these techniques to minimize the risk of harm to the infant.
  • Inadequate prenatal care: In some cases, negligence or inadequate prenatal care may contribute to brachial plexus injuries. Failure to identify and address known risk factors during prenatal visits can be grounds for a medical malpractice claim.

Prevention and Proper Medical Practices:

Preventing brachial plexus injuries requires a proactive approach from healthcare providers. Obstetricians, midwives, and other medical professionals involved in childbirth can take several measures to reduce the risk of these injuries, including:

  1. Conducting thorough prenatal evaluations: Identifying risk factors early on and developing appropriate management plans can help mitigate the risk of brachial plexus injuries.
  2. Proper training in delivery techniques: Healthcare providers must undergo rigorous training to ensure they possess the necessary skills and competence in various delivery techniques, such as forceps and vacuum extraction.
  3. Clear communication during delivery: Effective communication among the medical team is crucial to ensure a coordinated and safe delivery. Clear instructions and shared knowledge can help prevent excessive force and potential complications.

Here are some online resources discussing the prevent brachial plexus injuries during childbirth:

  • The American College of Obstetricians and Gynecologists (ACOG) provides a comprehensive guide on the management of shoulder dystocia, a common cause of brachial plexus injuries. You can access the guide here: https://www.acog.org/clinical/clinical-guidance/committee-opinion/articles/2018/03/management-of-shoulder-dystocia
  • The American Academy of Pediatrics (AAP) also has a helpful guide on the prevention and management of brachial plexus injuries in newborns. You can find it here: https://www.aap.org/en-us/Documents/clinical_guidance/Brachial_Plexus_Injuries.pdf
  • The National Institute of Neurological Disorders and Stroke (NINDS) provides detailed information on the anatomy of the brachial plexus and the types of injuries that can occur during childbirth. You can access the information here: https://www.ninds.nih.gov/Disorders/All-Disorders/Brachial-Plexus-Injuries-Information-Page

Diagnosis and Legal Considerations:

If your child is diagnosed with a brachial plexus injury following birth, it is essential to seek medical attention promptly. Early intervention, such as physical therapy and occupational therapy, can greatly improve outcomes and maximize the child’s potential for recovery.

Furthermore, consulting with an experienced personal injury lawyer specializing in medical malpractice can help assess the circumstances surrounding the injury. They can guide you through the legal process, evaluating the potential for a medical malpractice claim and advocating for fair compensation to cover medical expenses, rehabilitation costs, and future care needs.

Brachial plexus injuries at birth can have a lasting impact on the affected child and their family. While not all cases result from medical malpractice, it is crucial to understand the risks, statistics, and preventative measures associated with these injuries. If your child has been diagnosed with a brachial plexus injury and you suspect medical negligence may be involved, seeking legal advice from a personal injury lawyer can help protect your rights and ensure your child receives the care and support they need for their recovery.

About the Author

Justin is a fully bilingual lawyer and services clients in both French and English. He represents parties in insurance disputes, personal injury claims, and employment disputes at various levels of courts in Ontario. He was given early acceptance to the Common Law program at the University of Ottawa Law School. He obtained his Juris Doctorate in 2014 and was admitted to the Law Society of Upper Canada in 2016 after articling at Weaver Simmons in Sudbury, Ontario.

Education

University of Ottawa – Common Law

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