What are the prognostic factors in ulnar neuropathy?

Updated: Jun 08, 2018
  • Author: Charles F Guardia, III, MD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Answer

The following factors are relevant to the prognosis:

  • A motor amplitude of 10% of normal or a greatly reduced recruitment of motor units indicates a low likelihood of significant or full recovery

  • In some cases, nerve regeneration is accompanied by pain and paresthesias, which are thought to be secondary to random ectopic impulse generation of affected nerves

  • A diameter greater than 3.5 mm on the initial sonogram of the ulnar nerve at the elbow is associated with persistent symptoms or signs, regardless of whether conservative treatment or surgical treatment is provided [79]

  • The outcome is not correlated either with the clinical features noted at baseline or with the duration of symptoms before treatment

  • The presence of motor conduction velocity slowing or pure conduction block across the elbow signifies a favorable outcome; these are considered independent prognostic factors [80]


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