应用Steffee钢板手术治疗胸腰椎骨折及腰椎滑脱

自１９９１年～１９９７年应用Ｓｔｅｆｅｅ钢板内固定手术治疗胸腰椎骨折１０８例，术前平均椎体前、后高度分别是４８．３％和７５．６％，术后平均椎体前、后高度分别是８６．８％和８８．１％。术前Ｃｏｂｂ’ｓ角平均２０度，术后平均６度。应用Ｓｔｅｆｅｅ钢板治疗腰椎滑脱６１例，其中完全复位２６例，部分复位３５例。结果显示，Ｓｔｅｆｅｅ钢板对胸腰椎骨折脱位型和单纯压缩型骨折疗效满意，但对爆裂型骨折突入椎管内的骨折块不能复位，椎体后高度恢复较差，建议对爆裂型骨折患者使用ＲＦ系统固定。Ｓｔｅｆｅｅ钢板拉力负荷大，能使滑脱椎体复位并坚强固定，明显提高了脊柱融合度，是治疗腰椎滑脱的有效方法。

Surgical Treatment of Thoracolumbar Spine Fracture and Spondylolisthesis with Steffee Plate

From 1991 to 1997,108 cases with fractures of thoracolumbar spine were reduced and fixed by the Steffee plate.The front and back average heights of vertebral body were 48.3%,75.6% respectively before operation.But,after operation their heights were 86.8% and 88.1% separately.The Cobbs angle was returned from preoperative 20 degree to postoperative 6 degree.61 cases suffered from spondylolisthesis were reduced and fixed by the Steffee plate.26 cases were reduced completely and 35 cases were reduced partially.The results were satisfactory in thoracolumbar fracture.But,in burst fracture of thoracolumbar spine,the fracture fragment entering into the vertebral canal were not reduced and the heights of vertedral body were raised a little.For this reason,we suggest using RF system to fix burst fracture of thoracolumbar spine.The Steffee plate has large pulling force and can reduce the displaced vertebre body.It is also beneficial to fusion of bone graftion.It is an effective method for spondylolisthesis.