Huska Jonathan L, Gaitero Luis, Brisson Brigitte A, Nykamp Stephanie, Thomason Jeff, Sears William C
Department of Clinical Studies (Huska, Gaitero, Brisson, Nykamp), Deparment of Biomedical Sciences (Thomason), and Deparment of Population Medicine (Sears), Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1.
Can Vet J. 2014 May;55(5):449-55.
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.
对11具犬类尸体的脊柱在T11 - T12、T13 - L1和L2 - L3节段的相对侧进行半椎板切除术和微型半椎板切除术，以报告胸腰椎椎管入路的差异。在计算机断层扫描后测量椎管高度、缺损高度以及椎弓的背侧和腹侧残余部分。与半椎板切除术后背侧1%至2%的椎管高度未被切除相比，微型半椎板切除术后背侧有7%至20%的椎管高度未被切除。微型半椎板切除术后腹侧保留13%至25%的椎管高度，半椎板切除术后腹侧保留11%至27%的椎管高度。如果病变位于椎管腹侧11%至27%的高度，在进行任何一种手术时，或者病变位于椎管背侧7%至20%的高度，在进行微型半椎板切除术时，都应考虑胸腰椎病变暴露受限的可能性。
