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Degenerative changes of the canine cervical spine after discectomy procedures, an in vivo study
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Degenerative changes of the canine cervical spine after discectomy procedures, an in vivo study
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Journal Article
Degenerative changes of the canine cervical spine after discectomy procedures, an in vivo study
2017
Overview
Background
Discectomies are a common surgical treatment for disc herniations in the canine spine. However, the effect of these procedures on intervertebral disc tissue is not fully understood. The objective of this study was to assess degenerative changes of cervical spinal segments undergoing discectomy procedures, in vivo.
Results
Discectomies led to a 60% drop in disc height and 24% drop in foraminal height. Segments did not fuse but showed osteophyte formation as well as endplate sclerosis. MR imaging revealed terminal degenerative changes with collapse of the disc space and loss of T2 signal intensity. The endplates showed degenerative type II Modic changes. Quantitative MR imaging revealed that over 95% of Nucleus Pulposus tissue was extracted and that the nuclear as well as overall disc hydration significantly decreased. Histology confirmed terminal degenerative changes with loss of NP tissue, loss of Annulus Fibrosus organization and loss of cartilage endplate tissue. The bony endplate displayed sclerotic changes.
Conclusion
Discectomies lead to terminal degenerative changes. Therefore, these procedures should be indicated with caution specifically when performed for prophylactic purposes.
Publisher
BioMed Central,BioMed Central Ltd,Springer Nature B.V,BMC
Subject
/ Annulus Fibrosus - pathology
/ Cervical Vertebrae - pathology
/ Diskectomy - adverse effects
/ Dogs
/ Intervertebral Disc - surgery
/ Intervertebral Disc Degeneration - etiology
/ Intervertebral Disc Degeneration - pathology
/ Intervertebral Disc Degeneration - veterinary
/ Intervertebral Disc Displacement - surgery
/ Intervertebral Disc Displacement - veterinary
/ Magnetic Resonance Imaging - veterinary
/ Male
/ Medicine
/ NMR
/ Nuclei
/ Nucleus Pulposus - pathology
/ Spine
/ surgery
/ Veterinary Medicine/Veterinary Science
/ Zoology
