Peroneal nerve: trauma

Vetlexicon Equis ISSN: 2398-2977 Canis logo

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  • Common injury.
  • Cause : kick or pressure to the lateral stifle, a tibial fracture and anesthesia.
  • Signs : inability to flex hock and extend digits, shorter stride, knuckling of fetlock, hypalgesia of craniolateral portion of limb.
  • Diagnosis : pelvic limb lameness.
  • Treatment : DMSO, corticosteroids, surgery.


Clinical signs

  • Inability to flex hock and extend digits.
  • Shorter stride.
  • Knuckling of fetlock.
  • Weightbearing can be performed if the leg is advanced manually and the toe extended.
  • Hypalgesia of craniolateral portion of limb.
  • Hypalgesia on the craniolateral aspect of the gaskin, hock, and metatarsal regions.
  • Measurement of the affected limb circumference using a measurement tape can be helpful in picking up subtle decreases in limb diameter associated with muscle atrophy.



  • Usually, decompression of entrapped nerves may lead to full recovery and return to function in 2-3 months.
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