Use of the holmium yttrium aluminum garnet laser for percutaneous thoracolumbar intervertebral disk ablation in dogs

D. Thomas Dickey From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by D. Thomas Dickey in
Current site
Google Scholar
PubMed
Close
 DVM
,
Kenneth E. Bartels From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by Kenneth E. Bartels in
Current site
Google Scholar
PubMed
Close
 DVM, MS
,
George A. Henry From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by George A. Henry in
Current site
Google Scholar
PubMed
Close
 DVM
,
E. L. Stair From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by E. L. Stair in
Current site
Google Scholar
PubMed
Close
 DVM, PhD
,
Steven A. Schafer From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by Steven A. Schafer in
Current site
Google Scholar
PubMed
Close
 PhD
,
Thomas R. Fry From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by Thomas R. Fry in
Current site
Google Scholar
PubMed
Close
 DVM, MS
, and
Robert E. Nordquist From the Department of Medicine and Surgery (Dickey, Bartels, Henry) and the Oklahoma Animal Diagnostic Disease Laboratory (Stair), College of Veterinary Medicine, and Department of Physics (Schafer), College of Arts and Science, Oklahoma State University, Stillwater, OK 74078; Kentucky Veterinary Specialists, 1000 Lyndon Ln, Louisville, KY 40222 (Fry); and Dean A. McGee Eye Institute, 608 Stanton Young Blvd, Oklahoma City, OK 73104 (Nordquist).

Search for other papers by Robert E. Nordquist in
Current site
Google Scholar
PubMed
Close
 PhD

Objective

To evaluate a laser ablation technique for treatment of thoracolumbar intervertebral disk disease in dogs.

Design

Prospective case series.

Animals

33 dogs with signs of recurrent back pain associated with intervertebral disk disease after the initial episode had been managed conservatively for a minimum of 2 weeks.

Procedure

Spinal needles were placed percutaneously through the annulus fibroses to permit delivery of an optical fiber into the nucleus pulposes of thoracolumbar intervertebral disks T10-11 through L3-4. Fluoroscopy was used to guide needle placement. Holmium yttrium aluminum garnet laser energy then was used to ablate the contents of each selected intervertebral disk. Intervals from time of treatment to time of assessment ranged from 3 to 114 weeks.

Results

All dogs recovered without complication. Results of follow-up radiography and histologic evaluation indicated that percutaneous holmium yttrium aluminum garnet laser ablation reduces the volume of nucleus pulposus in treated disks.

Clinical Implications

Used as a clinical treatment and prophylactically, this minimally invasive procedure should prevent further extrusion of partially herniated disks and should reduce the chances of subsequent herniation of disks at other treatment sites. (J Am Vet Med Assoc 1996;208:1263–1267)

Objective

To evaluate a laser ablation technique for treatment of thoracolumbar intervertebral disk disease in dogs.

Design

Prospective case series.

Animals

33 dogs with signs of recurrent back pain associated with intervertebral disk disease after the initial episode had been managed conservatively for a minimum of 2 weeks.

Procedure

Spinal needles were placed percutaneously through the annulus fibroses to permit delivery of an optical fiber into the nucleus pulposes of thoracolumbar intervertebral disks T10-11 through L3-4. Fluoroscopy was used to guide needle placement. Holmium yttrium aluminum garnet laser energy then was used to ablate the contents of each selected intervertebral disk. Intervals from time of treatment to time of assessment ranged from 3 to 114 weeks.

Results

All dogs recovered without complication. Results of follow-up radiography and histologic evaluation indicated that percutaneous holmium yttrium aluminum garnet laser ablation reduces the volume of nucleus pulposus in treated disks.

Clinical Implications

Used as a clinical treatment and prophylactically, this minimally invasive procedure should prevent further extrusion of partially herniated disks and should reduce the chances of subsequent herniation of disks at other treatment sites. (J Am Vet Med Assoc 1996;208:1263–1267)

Advertisement