骨粗鬆症性椎体骨折後遅発性麻痺に対する後方矯正術の２症例―Ｐｅｄｉｃｌｅ ｓｕｂｔｒａｃｔｉｏｎ ｏｓｔｅｏｔｏｍｙ法―
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We carried out posterior correction using the pedicle subtraction osteotomy (PSO) method for two cases of osteoporotic vertebral fractures with delayed paraparesis. After laminectomy of the affected vertebra, decompression and anterior interbody fusion by pedicle subtraction osteotomy, a protruding cage was inserted. Then solid posterior correction fixation was conducted by placing pedicle screws combined with claw hooks at two or three vertebrae above and below. We mixed the patient's autologous bone with artificial bone using a bone mill and carried out bone transplantation in and outside the protruding cage and around the screw and rod at the back.Up to this point, three months after surgery on average, there has been no trouble such as loosening of the instrumentation or back out. The local posterior curvature angle was 20 degrees before surgery, but was improved to 6 degrees after surgery. Hardly any post-surgery correction loss was observed. Before surgery, the patients could not walk. However, after surgery, the pain in the lower limb and back were alleviated, and the patients can now walk.Even though this is a short-term result, it can be said that utilization of a claw hook was effective for maintaining the corrected position after posterior correction surgery by the pedicle subtraction osteotomy method.
- 中国・四国整形外科学会の論文
中国・四国整形外科学会 | 論文
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