Complete spinal cord injury

What makes an injury complete?

A complete injury means the cord has lost the ability to transmit signals past the damaged point. No motor or sensory function survives below that level.

The clinical test is more specific than it sounds. Classification turns on whether any sensation or voluntary contraction remains in the lowest sacral segments, which is assessed by direct examination.

That test exists because a small amount of preserved function at the very bottom of the cord signals that some pathway survived, even when everything else appears lost.

The determination is made using the ASIA impairment scale rather than by general impression.

Why is timing of the assessment important?

An early classification can be misleading for several reasons.

• Spinal shock immediately after injury suppresses function temporarily
• Sedation and intubation interfere with reliable examination
• Swelling around the cord may resolve over days or weeks
• Serial examinations are needed rather than a single assessment
• A classification made too early may be revised later

Why is the classification contested?

Because it drives the prognosis and therefore the value of the claim. A complete injury generally means the functional level is permanent, while an incomplete injury may improve.

Defense experts sometimes argue that an injury classified as complete is actually incomplete, supporting an argument for future recovery and lower lifetime cost.

The opposite argument also appears, where an early classification of complete is used to suggest the outcome was inevitable regardless of treatment delays.

Both arguments turn on the same records, which is why the acute period documentation is examined so closely.

What does it mean for the claim?

A confirmed complete injury allows the life care plan to be built on a stable functional baseline, which makes the projection more defensible.

Serial examination records from the acute period and rehabilitation become critical evidence, since they show how the classification was reached.

Rehabilitation records also document what was attempted and what response occurred, which bears directly on whether improvement remains realistic.

Photographs and video of function during rehabilitation supplement the written record and are worth preserving.

Common questions

Can a complete injury become incomplete?

Classification can change during the acute period as spinal shock resolves. Once confirmed on serial examination, conversion is uncommon.

Does complete mean the cord was severed?

Usually not. The cord is often physically intact but unable to transmit signals past the damaged region.

Who makes the determination?

Physicians using a standardized examination, typically a physiatrist or spinal specialist, with the findings recorded in the rehabilitation record.