Figure 1.
Separating OPLL from the dural mater using a specific microdissector.
(A). A picture of specific microdissector. (B). Intraoperative picture.
Figure 2.
A 53-year-old men with a C4–C7 mixed-type OPLL associated with DO was treated by anterior cervical corpectomy and fusion.
(A). Preoperative radiographic image at neutral position. (B, C). Preoperative sagittal and axial CT scans demonstrating a C4–C7 mixed-type OPLL with double-layer sign. (D). Preoperative MR image showed severe compression of the spinal cord. (E). Postoperative radiographic image showing C4–C6 corpectomy and fusion. (F, G). Postoperative sagittal and axial CT demonstrating complete resection of OPLL and floating of DO. (H). Postoperative MR image showed sufficient decompression of the spinal cord.
Table 1.
Summary of preoperative clinical features and radiological evaluation.
Table 2.
Clinical and radiological results at the last follow-up.
Table 3.
Summary of complications and causes of revision surgery.
Table 4.
Correlations of postoperative JOA score and various factors.
Table 5.
Results of multiple regression analysis of included factors to predict surgical outcome.
Table 6.
Clinical features, complications and surgical results of other 96 patients who did not complete the last follow-up in this study.