Surgical removal of a microchip from a puppy's spinal canal

Vet Comp Orthop Traumatol. 2009;22(1):63-5. doi: 10.3415/vcot-08-01-0002.


A 1.6 kg, six-week-old Tibetan Terrier was admitted with a 12-hours history of acute onset of progressive tetraparesis following insertion of a microchip to the dorsal cervical region. Neurological examination indicated a lesion to the Ce(1) to Ce(5) spinal cord segments. Radiographic examination confirmed the intra-spinal location of a microchip foreign body at the level of the second cervical vertebra. Microchip removal was achieved following dorsal hemi-laminectomy; significant intra-operative haemorrhage was encountered. The puppy was ambulatory at day seven. Follow-up telephone interview 18 months postoperatively confirmed that the patient had made a good recovery although it had a mild residual right- sided torticollis.

Publication types

  • Case Reports

MeSH terms

  • Animal Identification Systems / instrumentation
  • Animal Identification Systems / veterinary*
  • Animals
  • Diagnosis, Differential
  • Dog Diseases / diagnosis
  • Dog Diseases / etiology*
  • Dog Diseases / surgery
  • Dogs
  • Electronics
  • Foreign Bodies / complications
  • Foreign Bodies / veterinary*
  • Foreign-Body Migration / surgery
  • Foreign-Body Migration / veterinary*
  • Male
  • Spinal Cord Injuries / diagnosis
  • Spinal Cord Injuries / etiology
  • Spinal Cord Injuries / surgery
  • Spinal Cord Injuries / veterinary*
  • Treatment Outcome