Rupp R, Ebraheim N A, Savolaine E R, Jackson W T
Department of Orthopaedic Surgery, College of Ohio, Ohio.
Spine (Phila Pa 1976). 1993 Mar 1;18(3):379-85.
We studied the cases of 15 patients who underwent postoperative magnetic resonance imaging evaluation after being treated with metal spinal implants. Spine stabilization was required in traumatic injuries for eight patients, cancer destruction in four patients, late cervical subluxation in one patient, spondylosis in one patient, and spondylolisthesis in one patient. A variety of stainless steel and titanium spinal implants were used. The images were evaluated for spinal and implant positioning and artifact production. Both stainless steel and titanium implants were imaged safely and there was no evidence of implant migration of local tissue-heating effect. The titanium spinal implants allowed postoperative spine imaging without the significant image distortion characteristic of the stainless steel implants. The stainless steel implants created significant artifact that impaired the usefulness of the magnetic resonance imaging evaluation.
我们研究了15例接受金属脊柱植入物治疗后进行术后磁共振成像评估的患者病例。8例患者因创伤性损伤需要脊柱稳定，4例患者因癌症破坏，1例患者因晚期颈椎半脱位，1例患者因脊柱关节病，1例患者因脊椎前移。使用了各种不锈钢和钛制脊柱植入物。对图像进行脊柱和植入物定位以及伪影产生情况的评估。不锈钢和钛制植入物成像均安全，且没有植入物移位或局部组织热效应的证据。钛制脊柱植入物术后脊柱成像时没有不锈钢植入物特有的明显图像失真。不锈钢植入物产生了严重伪影，影响了磁共振成像评估的效用。
