Comparison of the Access Window Created by Hemilaminectomy and Mini-hemilaminectomy in the Thoracolumbar Vertebral Canal Using Computed Tomography

Overview

Journal Can Vet J

Specialty Veterinary Medicine

Date 2014 May 3

PMID 24790230

Citations 5

Authors

Jonathan L Huska

Luis Gaitero

Brigitte A Brisson

Stephanie Nykamp

Jeff Thomason

William C Sears

Affiliations

Soon will be listed here.

Abstract

Hemilaminectomy and mini-hemilaminectomy were performed on opposite sides of the spine at T11-T12, T13-L1, and L2-L3 in 11 canine cadavers in order to report differences in the access provided to the thoracolumbar vertebral canal. Measurements of the vertebral canal height, defect height, and dorsal and ventral remnants of the vertebral arch were obtained after computed tomography. A median of 7% to 20% of the vertebral canal height was not removed dorsally after mini-hemilaminectomy compared to 1% to 2% in hemilaminectomy. Thirteen to 25% of the vertebral canal height was left ventrally in mini-hemilaminectomy and 11% to 27% in hemilaminectomy. Potential for a restricted exposure of thoracolumbar lesions should be considered if lesions are located in the ventral 11% to 27% vertebral canal height when performing either procedure or in the dorsal 7% to 20% of the canal height when performing a mini-hemilaminectomy.

Citing Articles

Evaluation of anatomic landmarks to increase precision performing a mini-hemilaminectomy-an study in dogs.

Brechbuhl S, Husi B, Knell S Front Vet Sci. 2024; 11:1385249.

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Microendoscopic Mini-Hemilaminectomy and Discectomy in Acute Thoracolumbar Disc Extrusion Dogs: A Pilot Study.

Kamishina H, Nakano Y, Nozue Y, Nakata K, Kimura S, Drury A Vet Sci. 2021; 8(10).

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Current Approaches to the Management of Acute Thoracolumbar Disc Extrusion in Dogs.

Moore S, Tipold A, Olby N, Stein V, Granger N Front Vet Sci. 2020; 7:610.

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Operative techniques of percutaneous endoscopic mini-hemilaminectomy using a uniportal approach in dogs.

Moon H, Hwang Y, Lee H, Lee J J Vet Med Sci. 2017; 79(9):1532-1539.

PMID: 28757523 PMC: 5627323. DOI: 10.1292/jvms.17-0148.

Presence of residual material following mini-hemilaminectomy in dogs with thoracolumbar intervertebral disc extrusion.

Huska J, Gaitero L, Brisson B, Nykamp S, Thomason J, Sears W Can Vet J. 2014; 55(10):975-80.

PMID: 25320387 PMC: 4187364.

References

Cudia S, Duval J . Thoracolumbar intervertebral disk disease in large, nonchondrodystrophic dogs: a retrospective study. J Am Anim Hosp Assoc. 1997; 33(5):456-60. DOI: 10.5326/15473317-33-5-456. View

Bray J, Burbidge H . The canine intervertebral disk. Part Two: Degenerative changes--nonchondrodystrophoid versus chondrodystrophoid disks. J Am Anim Hosp Assoc. 1998; 34(2):135-44. DOI: 10.5326/15473317-34-2-135. View

Doppman J, Girton M . Angiographic study of the effect of laminectomy in the presence of acute anterior epidural masses. J Neurosurg. 1976; 45(2):195-202. DOI: 10.3171/jns.1976.45.2.0195. View

Moissonnier P, Meheust P, Carozzo C . Thoracolumbar lateral corpectomy for treatment of chronic disk herniation: technique description and use in 15 dogs. Vet Surg. 2005; 33(6):620-8. DOI: 10.1111/j.1532-950X.2004.04085.x. View

Hansen H . A pathologic-anatomical study on disc degeneration in dog, with special reference to the so-called enchondrosis intervertebralis. Acta Orthop Scand Suppl. 1952; 11:1-117. DOI: 10.3109/ort.1952.23.suppl-11.01. View

Olby N, Levine J, Harris T, Munana K, Skeen T, Sharp N . Long-term functional outcome of dogs with severe injuries of the thoracolumbar spinal cord: 87 cases (1996-2001). J Am Vet Med Assoc. 2003; 222(6):762-9. DOI: 10.2460/javma.2003.222.762. View

McKee W . A comparison of hemilaminectomy (with concomitant disc fenestration) and dorsal laminectomy for the treatment of thoracolumbar disc protrusion in dogs. Vet Rec. 1992; 130(14):296-300. DOI: 10.1136/vr.130.14.296. View

Braund K, Taylor T, Ghosh P, Sherwood A . Lateral spinal decompression in the dog. J Small Anim Pract. 1976; 17(9):583-92. DOI: 10.1111/j.1748-5827.1976.tb07005.x. View

Ball M, McGuire J, Swaim S, HOERLEIN B . Patterns of occurrence of disk disease among registered dachshunds. J Am Vet Med Assoc. 1982; 180(5):519-22. View

10.

Eule J, Breeze R, Kindt G . Bilateral partial laminectomy: a treatment for lumbar spinal stenosis and midline disc herniation. Surg Neurol. 1999; 52(4):329-37; discussion 337-8. DOI: 10.1016/s0090-3019(99)00102-0. View

11.

Kazakos G, Polizopoulou Z, Patsikas M, Tsimopoulos G, Roubies N, Dessiris A . Duration and severity of clinical signs as prognostic indicators in 30 dogs with thoracolumbar disk disease after surgical decompression. J Vet Med A Physiol Pathol Clin Med. 2005; 52(3):147-52. DOI: 10.1111/j.1439-0442.2005.00698.x. View

12.

Schulz K, Waldron D, Grant J, Shell L, Smith G, Shires P . Biomechanics of the thoracolumbar vertebral column of dogs during lateral bending. Am J Vet Res. 1996; 57(8):1228-32. View

13.

Gage E, HOERLEIN B . Hemilaminectomy and dorsal laminectomy for relieving compressions of the spinal cord in the dog. J Am Vet Med Assoc. 1968; 152(4):351-9. View

14.

Mayhew P, McLear R, Ziemer L, Culp W, Russell K, Shofer F . Risk factors for recurrence of clinical signs associated with thoracolumbar intervertebral disk herniation in dogs: 229 cases (1994-2000). J Am Vet Med Assoc. 2004; 225(8):1231-6. DOI: 10.2460/javma.2004.225.1231. View

15.

Muir P, Johnson K, Manley P, Dueland R . Comparison of hemilaminectomy and dorsal laminectomy for thoracolumbar intervertebral disc extrusion in dachshunds. J Small Anim Pract. 1995; 36(8):360-7. DOI: 10.1111/j.1748-5827.1995.tb02950.x. View

16.

Goggin J, Li A, Franti C . Canine intervertebral disk disease: characterization by age, sex, breed, and anatomic site of involvement. Am J Vet Res. 1970; 31(9):1687-92. View

17.

Fernald D, Coombs L, DeAlleaume L, West D, Parnes B . An assessment of the Hawthorne Effect in practice-based research. J Am Board Fam Med. 2012; 25(1):83-6. DOI: 10.3122/jabfm.2012.01.110019. View

18.

Davis G, Brown D . Prognostic indicators for time to ambulation after surgical decompression in nonambulatory dogs with acute thoracolumbar disk extrusions: 112 cases. Vet Surg. 2002; 31(6):513-8. DOI: 10.1053/jvet.2002.36015. View

19.

Brisson B, Holmberg D, Parent J, Sears W, Wick S . Comparison of the effect of single-site and multiple-site disk fenestration on the rate of recurrence of thoracolumbar intervertebral disk herniation in dogs. J Am Vet Med Assoc. 2011; 238(12):1593-600. DOI: 10.2460/javma.238.12.1593. View

20.

Thome C, Zevgaridis D, Leheta O, Bazner H, Pockler-Schoniger C, Wohrle J . Outcome after less-invasive decompression of lumbar spinal stenosis: a randomized comparison of unilateral laminotomy, bilateral laminotomy, and laminectomy. J Neurosurg Spine. 2005; 3(2):129-41. DOI: 10.3171/spi.2005.3.2.0129. View