Nerve Damage After Surgery: When It May Raise Malpractice Questions
Nerve damage is a recognized complication of surgery and anesthesia. It can cause numbness, weakness, pain, or loss of function that may be temporary or permanent. Because nerve injuries can occur even when appropriate care is provided, the injury alone does not establish medical malpractice.
When nerve damage follows surgery, the circumstances surrounding the injury become important. Patient positioning, surgical technique, anesthesia, monitoring, and the response to symptoms may all need review. A
Greenville medical malpractice lawyer can evaluate the medical records and whether the care provided met the applicable standard.

How Nerve Damage Can Happen During Surgery
Nerves can be injured in several ways during an operation. A nerve may be compressed by prolonged pressure, stretched by positioning or surgical manipulation, or directly injured during the procedure. Reduced blood flow, tourniquets, anesthesia-related procedures, and other factors can also contribute. In some cases, more than one factor is involved.
For example, an anesthetized patient cannot feel uncomfortable pressure and reposition themselves as an awake person would. This makes careful positioning and protection of vulnerable nerves important during surgery. The American Society of Anesthesiologists provides guidance on positioning and other measures intended to reduce the risk of perioperative nerve injuries.
Some nerve injuries occur despite appropriate precautions. Others may raise questions about positioning, technique, monitoring, or another aspect of care. Determining which occurred generally requires examining the specific procedure, the nerve involved, and the patient's medical records.
How Patient Positioning Can Affect Nerves During Surgery
Because an anesthetized patient cannot feel pressure or reposition themselves, the surgical team must consider positioning throughout the procedure. Certain nerves are more vulnerable depending on how the patient's arms, legs, and body are positioned.
The American Society of Anesthesiologists identifies several positioning considerations intended to reduce the risk of nerve injury. These include:
- Brachial plexus: Excessive arm or shoulder positioning can place stress on these nerves. For patients lying on their backs, ASA guidance recommends limiting arm abduction to 90 degrees when possible.
- Ulnar nerve: This nerve runs near the elbow and can be vulnerable to pressure. Arm and forearm positioning can help reduce that pressure.
- Peroneal nerve: Pressure near the outside of the knee can affect this nerve, making lower-leg positioning and padding important.
- Sciatic and femoral nerves: Certain leg and hip positions can place these nerves under stress, particularly during procedures requiring prolonged positioning.
The appropriate position depends on the patient and procedure. The ASA also recommends periodically checking upper and lower extremity positioning during surgery when feasible.
Ulnar and brachial plexus injuries appear frequently in malpractice claims involving perioperative nerve damage. A systematic review of anesthesia closed-claims data found that injuries to these two areas accounted for about two-thirds of peripheral nerve injury claims. This figure describes malpractice claims, not the overall rate of nerve injuries after surgery.
Why the Medical Record Does Not Always Tell the Whole Story
Medical records are an important part of evaluating a surgical nerve injury, but documentation alone may not explain what happened. For example, research has found ulnar nerve injuries even when appropriate elbow padding was documented. One review reported that 18% to 27% of these injuries occurred despite records showing appropriate padding.
That does not mean the documentation was inaccurate or that the injury resulted from malpractice. Nerve injuries can occur despite appropriate positioning and precautions. Instead, the records must be considered alongside the procedure, positioning, patient-specific risks, and other available evidence.
The question is whether the care provided was appropriate for that particular patient and procedure, not simply whether a positioning precaution appears in the chart.
What Intraoperative Neuromonitoring Can Show
During some surgeries, particularly certain spine procedures, the surgical team may use intraoperative neuromonitoring. This technology tracks nerve or spinal cord function while the operation is underway. Current clinical guidance recommends neuromonitoring for patients at higher risk of spinal cord injury during spine surgery.
A significant change in a monitoring signal can warn the surgical team of an increased risk of neurological injury. The team may then evaluate possible causes and determine what response is appropriate. That can involve reviewing surgical steps, positioning, anesthesia, blood pressure, or other factors affecting the signal.
When neuromonitoring was used, those records can help reconstruct what happened during surgery. They may show when a signal changed, what was happening at that time, and how the surgical team responded.
What the Recovery Timeline Can Show
Not every nerve injury after surgery is permanent. Some mild injuries, known as neurapraxia, involve a temporary interruption in how the nerve sends signals. These injuries can improve over weeks or months. More serious nerve damage may take much longer to heal or may cause lasting problems.
The recovery timeline can help doctors understand the type and severity of the injury. However, a quick recovery does not prove that appropriate care was provided. Likewise, lasting symptoms do not prove that malpractice occurred.
Doctors may use nerve conduction studies and electromyography, often called EMG, to learn more about an injury. These tests can help identify the affected nerve, measure the severity of the damage, and track recovery. Timing matters because some nerve damage may not appear clearly on these tests immediately after surgery.
Why New Symptoms After Surgery Need Attention
Nerve injuries can cause numbness, tingling, burning pain, weakness, or difficulty moving part of the body. Some symptoms appear immediately after surgery, while others may become clearer as anesthesia and pain medications wear off.
New or worsening neurological symptoms may require further evaluation. Depending on the symptoms, doctors may perform a neurological examination, order imaging, or use nerve conduction studies and EMG. Progressive weakness or other significant neurological changes may require more urgent evaluation.
For a later malpractice review, the medical record can help establish when symptoms were first reported and how healthcare providers responded. Whether an earlier response would have changed the outcome depends on the specific injury and generally requires medical expert review.
What an Expert Reviews in a Surgical Nerve Injury Case
Determining whether nerve damage resulted from medical negligence usually requires more than reviewing the diagnosis itself. A medical expert may need to examine the operative report, anesthesia records, positioning notes, and other records surrounding the procedure.
Depending on how the injury occurred, that review may consider:
- How the patient was positioned and protected during surgery
- How long the procedure lasted
- Whether the nerve was near the surgical area
- What surgical techniques or instruments were used
- Whether neuromonitoring showed changes during the procedure
- When symptoms were first reported after surgery
- How healthcare providers evaluated and responded to those symptoms
The goal is to compare the care provided with the accepted standard of care for that patient and procedure. An injury can be a recognized surgical complication and still require review of whether appropriate precautions were taken.
Expert review also has a specific role under South Carolina law. Before filing a medical malpractice lawsuit, a claimant generally must file a Notice of Intent to File Suit with an expert affidavit, subject to statutory requirements and exceptions. The affidavit must identify at least one alleged negligent act or omission and its factual basis.
When Nerve Damage After Surgery May Warrant a Closer Look
Nerve damage after surgery does not automatically mean medical malpractice occurred. It also should not automatically be dismissed simply because nerve injury was listed as a possible complication.
The circumstances surrounding the injury matter. Positioning, surgical technique, monitoring, the location of the injured nerve, and the response to new symptoms can help explain how the injury occurred. Medical experts can then evaluate whether the care met the applicable standard and whether any departure from that standard caused the patient's harm.
If you are dealing with nerve damage after surgery, the
medical negligence team at Mooneyham Berry can review the medical records and help determine whether the circumstances warrant further investigation.





