所有病例均行整块半关节突全椎板切除术。

All cases were treated with en bloc hemi-articular process laminectomy.

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所有病例均行常规自旋回波(SE)序列和心电门控MRI电影检查。

Spin echo (se) sequence and EGG-gated cine-MRI were adopted in all 22 cases.

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所有病例均行外科手术治疗并分为两组：新辅助化疗24例及单纯手术24例。

All the cases underwent surgical operations and were classified into 2 groups: 24 cases with neoadjuvant chemotherapy and 24 cases with surgery alone.

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