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OBJECTIVE To explore the radiographic risk factors of senior thoracolumbar proximal junctional kyphosis (PJK) after lumbar long segment fusion. METHODS From January 2009 to December 2011, the PJK group enrolled 9 patients who satisfied the following criteria: being older than 60 years, having lumbar fusion operation no less than 4 levels, upper(More)
OBJECTIVE To assess the indications,efficacy and safety of application of interspinous implants for degenerative lumbar diseases by mid-term follow-up and analysis of the failure cases. METHODS In our study, 52 cases of degenerative lumbar diseases treated with interspinous implants From September 2007 to September 2008 were divided into Wallis group (25(More)
OBJECTIVE To summarize and analyze the complications of interspinous implants for degenerative lumbar disease. METHODS From September 2007 to September 2011, 177 cases with degenerative lumbar diseases were treated with interspinous implants. There were 99 male patients and 78 female patients, the average age was 44.5 years (26 - 71 years). According to(More)
OBJECTIVE To describe the application of polymethylmethacrylate (PMMA) augmentation of cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar scoliosis with osteoporosis. METHODS Retrospective cohort study was used to compare cement injectable cannulated pedicle screws (CICPs) group with PMMA augmentation and control group(More)
OBJECTIVE To describe the application of polymethylmethacrylate augmentation of bone cement-injectable cannulated pedicle screws for the treatment of degenerative lumbar diseases with osteoporosis. METHODS Observation group included 14 cases of degenerative lumbar diseases with osteoporosis received polymethylmethacrylate augmentation of bone(More)
OBJECTIVE To assess the indications, efficacy and safety of applying interspinous implants for degenerative lumbar diseases. METHODS From September 2007 to September 2008, 68 cases with degenerative lumbar diseases were treated with interspinous implants. The clinical outcome was assessed by VAS of pain in back and lower extremities, lumbar JOA score and(More)
OBJECTIVE To investigate the clinical characteristics and treatment of cervical spondylotic amyotrophy. METHODS 9 cervical spondylotic amyotrophy patients and 15 cervical radiculopathy, myelopathy spondylosis patients were included in this study. Their clinical manifestation, MRI image results and treatment were analysis. Of 9 cervical spondylotic(More)
OBJECTIVE To investigate the clinical characteristics of vertebral compression fracture (VCF) in glucocorticosteroid-induced osteoporosis (GIOP) and risk of vertebral refracture after percutaneous vertebroplasty (PVP) or percutaneous kyphoplasty (PKP). METHODS In the study, 570 cases who received PVP or PKP as treatments of VCF from January 2010 to(More)
OBJECTIVE To evaluate the clinical characteristics and reoperation of symptomatic adjacent segment degeneration postoperation of lumbar fusion. METHODS In the study, 28 cases of symptomatic adjacent segment degeneration postoperation of lumbar fusion from May 2007 to April 2012 were retrospectively reviewed,with an average age of (64.3±8.7) years. The(More)
OBJECTIVE To evaluate the strength of pedicle screw fixation with bone cement in human cadaveric lumbar vertebral bodies by using biomechanical test. METHODS Twenty-four fresh frozen cadaveric lumbar vertebral bodies were randomly divided into 3 groups, which each group had 8 bodies. The bodies in the first group were drilled only. The bodies in the(More)