Vertebral Fusion of T11-T12 vertebral fracture


  1. A 33 kg female baladi mixed dog was presented to our clinic in Cairo “DrPaws Veterinary Hospital” with history of car accident one day before presentation sudden loss of hind limbs voluntary movement “Paralysis”. The dog had urine retention.
  2. Vertebral fracture was suspected and radiographic examination was performed which confirmed a T11-T12 vertebral luxation with T11 proximal end telescoping into the vertebral canal.

Neurological Examination

  • Exaggerated hind limb reflexes; Patellar reflex, Coxofemoral reflex and Cranial tibial reflex (+3)
  • Normal Withdrawal reflex (+2)
  • Weak deep pain sensation (1) of both hind limbs
  • intact perineal reflex (+3)
  • Panniculus reflex revealed no dermatomal sensation caudal to level of T13 vertebrae.
  • Normal forelimbs reflexes.
  • Normal cranial nerves examination (+2) including Menace reflex, PLR, PL with no nystagmus or strabismus.
  • Dog was reported to have normal swallowing reflexes before accident (Normal GAG reflex) (+2)
  • Dog had Grade “5” neurological deficits with less than 5% success rates of conservative treatment and increased (up to 50%) improvement chances with direct surgical interference.


  1. Computed tomography for T3-L3 spinal segments
  2. Emergent Surgical interference (Vertebral Fusion)

Computed Tomography

  1. T11-T12 vertebral fracture with telescoping of the caudal proximal T11 fragment into the vertebral canal. The ventral buttress of T11 was found to be slightly separated from the rest of the vertebrae at the T11-T12 junction.


  1. Surgical vertebral fusion by the use of Screw Cement fixation technique

Steps of Surgery

  1. Approach: epiaxial vertebral approach at the both sides of vertebral dorsal processes.
  2. Vertebral fusion and Fixation was performed by the use of 4 screws and 6 K. wires followed by fusion by PMMA cement substance.

Postoperative radiographic examination revealed perfect reduction of T11-T12 vertebral luxation. The fixation screws needs to be slight longer.

Wound after 14 days of operation (Removal of stitches)


  • Passive range of movement (PROM) and Massage
  • Hydrotherapy and swimming in a pool
  • Electric stimulation of tendons and muscles
  • Walking in a sling

Postoperative Video Follow up: Dog begins to walk on a wheelchair