OBJECTIVE: To explore the feasibility, methods and clinical effects of surgical limited decompression via posterior approach, USS system fixation combined with cemented vertebral body remodeling technique of diseased vertebrae in the treatment of patients with lumbar metastatic tumors with nerve compression. METHODS: For patients with lumbar metastatic tumors admitted to our department from January 2009 to March 2012, 21 cases of lumbar metastatic tumors were treated with the treatment method of limited decompression of diseased segments via posterior approach, reconstruction of spinal sequence stability by USS system, and combined with cemented vertebral body remodeling technology, of which 14 cases were male and 7 cases were female. All treated patients had neurological damage and severe pain. RESULTS: Surgical time was 120-180 min, and bleeding was 500-800 ml. All patients (100%) of the 21 patients had immediate postoperative pain relief. At 3-month follow-up, 17 patients had sustained improvement in postoperative neurological function, with no internal fixation loosening or breakage during the follow-up period, good maintenance of vertebral body height of the diseased vertebrae, significant recovery of neurological function, and significant improvement in the quality of life. CONCLUSION: Posterior approach limited decompression USS system fixation combined with cemented vertebral body remodeling technique of diseased vertebrae under direct vision for the treatment of lumbar metastatic tumors with neurological compression symptoms can instantly stabilize the spine, prevent vertebral pathologic fracture leading to paraplegia and other complications, expand the scope of application of the cement technique, reduce the risk of cement leakage, and effectively decompress the spine, better alleviate the pain and improve the neurological symptoms, reduce the risk of trauma and tumor dissemination, and increase the patient’s quality of life. chance of tumor dissemination, and improved the quality of patient survival. Through the study, we believe that choosing the appropriate indications for using this technique is an effective means of treating metastatic tumors of the spine in a palliative manner.