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Medl, Susanne C.; Reese, Sven ORCID logoORCID: https://orcid.org/0000-0002-4605-9791 and Medl, Nikola S. (2. February 2017): Individualized mini-hemilaminectomy-corpectomy (iMHC) for treatment of thoracolumbar intervertebral disc herniation in large breed dogs. In: Veterinary surgery, Vol. 46, No. 3: pp. 422-432

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Objective: To assess the short-term, mid-term, and long-term results after an individualized mini-hemilaminectomy-corpectomy (iMHC) procedure for treatment of acute and chronic thoracolumbar intervertebral disc disease in non-chondrodystrophic dogs. Study Design: Prospective study. Animals: Client-owned non-chondrodystrophic large breed dogs (n557). Methods: The iMHC procedure, combining mini-hemilaminectomy (MH) and partial lateral corpectomy, was performed on non-chondrodystrophic dogs with thoracolumbar disc disease. Neurological status was evaluated before surgery, for short-term outcome on days 1 and 7 after surgery, for mid-term outcome at 6 months after surgery, and for long-term outcome at the conclusion of the study. Prognostic factors were statistically evaluated. P<.05 was considered significant. Results: iMHC was performed on 57 dogs, with minimal intraoperative and postoperative complications. Short-term neurological improvement was observed in 85.7% of dogs. Median hospitalization time after surgery was 2 days (range 0-14) and was significantly shorter for dogs with a chronic history of clinical signs (1 day, range 0-5) compared to acute onset (3 days, range 0-14) and for those that were ambulatory at initial presentation (1 day, range 0-5) compared to those that were not (3 days, range 0-14). Long-term evaluation included 53 surgeries with a mean follow-up time of 29.4 months. Outcome was excellent in 19 dogs and good in 29 dogs (90.6% success rate). Excellent mid-term and long-term results were significantly more common in the dogs with only 1 affected disc space. Conclusion: The iMHC procedure resulted in a short hospitalization time, minimal postoperative deterioration, and a high success rate.

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