Law & Medicine

Malpractice Counsel

Commentaries on cases involving stroke in a young man and bowel obstruction following gastric bypass surgery


 

References

Traumatic Back Pain

An 84-year-old man with low-back pain following a motor vehicle crash was brought to the ED by emergency medical services (EMS). He had been the restrained driver, stopped at a traffic light, when he was struck from behind by a second vehicle.

In the ED, the patient only complained of low-back pain. He denied any radiation of pain or lower-extremity numbness or weakness. He also denied any head injury, loss of consciousness, neck pain, or abdominal pain. His past medical history was significant for hypertension, arthritis, and coronary artery disease.

On physical examination, the patient’s vital signs were normal. The head, eyes, ears, nose, and throat (HEENT) examination was also normal; specifically, there was no tenderness to palpation of the cervical spine in the posterior midline. Regarding the cardiopulmonary examination, auscultation of the lungs revealed clear, bilateral breath sounds; the heart examination was normal. The patient had a soft abdomen, without tenderness, guarding, or rebound. His pelvis was stable, but he did exhibit some tenderness on palpation of the lower-thoracic and upper-lumbar spine. The neurological examination revealed normal motor strength and sensation in the lower extremities.

The emergency physician (EP) ordered X-rays of the thoracic and lumbar spine and a urinalysis. The films were interpreted by both the EP and radiologist as normal; the results of the urinalysis were also normal. The patient was diagnosed with a lower back strain secondary to the motor vehicle crash and was discharged home with an analgesic.

The next day, however, the patient began to complain of increased back pain and lower-extremity numbness and weakness. He was brought back to the same hospital ED where he was noted to have severe weakness of both lower extremities and decreased sensation to touch. Additional imaging was performed, which demonstrated a fracture of T11 with spinal cord impingement. He was taken to surgery, but unfortunately the injury was permanent, and the patient was left with lower-extremity paralysis and bowel and bladder incontinence.

The plaintiff sued the EP and the radiologist for not properly interpreting the initial X-rays. The defendants denied liability, asserting the patient’s injury was a result of the collision and that nothing could have prevented it. According to a published account, the jury returned a verdict finding the EP to be 40% at fault and the radiologist 60% at fault.

Discussion

Emergency physicians frequently manage patients experiencing pain or injury following a motor vehicle crash. If the patient is complaining of neck or back pain, the prehospital providers will immobilize the patient with a rigid cervical collar (ie, if neck pain is present) and a long backboard if pain anywhere along the spine is present (ie, cervical, thoracic, or lumbar).

When the initial airway, breathing, circulation, and disability assessment for the trauma patient is performed and found to be normal, a secondary examination should be performed. Trauma patients with back pain should be log-rolled onto their side, with spinal immobilization followed by visual inspection and palpation/percussion of the midline of the thoracic and lumbar spine. The presence of midline tenderness suggests an acute injury and the need to keep the patient immobilized. Patients should be removed off the backboard and onto the gurney mattress while immobilizing the spine. The standard hospital mattress provides acceptable spinal support.1

Historically, plain radiographs of the thoracic and lumbar spine have been the imaging test of choice in the initial evaluation of suspected traumatic spinal column injury. However, similar to cervical spine trauma, computed tomography (CT) is assuming a larger role in the evaluation of patients with suspected thoracic or lumbar spine injury. When thoracic and abdominal CT scans are performed to evaluate for possible chest or abdominal trauma, those images can be reformatted and used to reconstruct images of the thoracic and lumbar spine, significantly reducing radiation exposure.1 While CT is the gold standard imaging study for evaluation of bony or ligamentous injury of the spine, magnetic resonance imaging (MRI) is the study of choice for patients with neurological deficits or suspected spinal cord injury.

This patient had a completely normal neurological examination at initial presentation, so there was no indication for an MRI. The bony injury to T11 must have been very subtle for both the EP and the radiologist to have missed it. Unfortunately, the jury appears to have used the standard of “perfection,” rather than the “reasonable and prudent physician” in judging that the injury should have been detected. This case serves as a reminder that EPs cannot rely on consulting specialists to consistently and reliably provide accurate information. Moreover, this case emphasizes the need to consider CT imaging of the spine in the evaluation of patients with severe back pain of traumatic origin when plain radiographs appear normal.

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