2016 ACVIM Forum Research Abstract Program

One patient had a developmental subarachnoid diverticulum (the patient with a C2 laminotomy), and the remaining 8 had an acquired adhesion (constrictive myelopathy) documented at surgery. Four patients showed improvement of clinical signs, of which three showed complete recovery. The one patient that has not shown a complete recovery in this group was the young patient with a developmental subarachnoid diverticulum, but is continuing to improve at 3 months post-operatively. One patient had mixed success: improvement of fecal control, but deterioration in gait (although with subsequent gradual improvement). Three patients did not show major improvement after surgery. Of these, one showed mild improvement after surgery but acute progression of paraparesis at 10 months prompted euthanasia (cause of acute paraparesis was not ascertained because of lack of post mortem examination). The other two cases showed unchanged clinical signs at 7 and 24 months post operatively. The last remaining case improved immediately postoperatively, but was lost to long-term follow-up.