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学科主题: 临床医学
题名:
Bone resorption during the first year after implantation of a single-segment dynamic interspinous stabilization device and its risk factors
作者: Wang, Kaifeng; Zhu, Zhenqi; Wang, Bo; Zhu, Yi; Liu, Haiying
关键词: Bone resorption ; Risk factor ; Interspinous dynamic stabilization device ; Wallis
刊名: BMC MUSCULOSKELETAL DISORDERS
发表日期: 2015-05-14
DOI: 10.1186/s12891-015-0561-y
卷: 16
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Orthopedics ; Rheumatology
研究领域[WOS]: Orthopedics ; Rheumatology
关键词[WOS]: LOW-BACK-PAIN ; SPINOUS PROCESS ; DISC DEGENERATION ; LUMBAR SPINE ; SYSTEM ; FUSION ; FACET ; OSTEOPOROSIS ; HYPOTHESIS ; ADJACENT
英文摘要:

Background: Dynamic interspinous stabilization devices generally provide satisfactory results, but can result in recurrent lumbar disc herniation, spinous process fracture, or bone resorption of the spinous process. The purpose of this study was to investigate if the Wallis dynamic stabilization device is associated with bone resorption.

Methods: Patients who underwent single-segment posterior lumbar decompression and implantation of a Wallis dynamic interspinous stabilization device at the L4/5 level between January 1, 2009 and October 1, 2011 were included. Bone resorption rate, Oswestry Disability Index (ODI), Japanese Orthopedic Association (JOA) score, and visual analogue scale (VAS) pain score were measured. Patient baseline and 1-year follow-up data were collected and analyzed. The bone resorption rate of the L4 and L5 spinous processes was calculated.

Results: Twenty four males and 20 females with a mean age of 42.7 +/- 14.7 years were included. Twenty nine patients had significant bone resorption (bone resorption rate > 20%) and 15 had no bone resorption (bone resorption rate <= 20%) at 1 year after surgery. Lumbar lordosis >= 50 degrees was associated with a lower bone resorption than lumbar lordosis < 50 degrees and increasing BMI was associated with increased bone resorption. There were no significant differences between the bone resorption and no bone resorption groups in the improvement rate of VAS pain score, ODI, and JOA score at 1 year after surgery.

Conclusions: Significant bone resorption occurs within 1 year after implantation of the Wallis device in more than 50% of patients. However, it does not affect short-term functional results.

语种: 英语
WOS记录号: WOS:000356849200001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/62904
Appears in Collections:北京大学第二临床医学院_脊柱外科_期刊论文

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作者单位: Peking Univ, Peoples Hosp, Dept Spinal Surg, Beijing 100871, Peoples R China

Recommended Citation:
Wang, Kaifeng,Zhu, Zhenqi,Wang, Bo,et al. Bone resorption during the first year after implantation of a single-segment dynamic interspinous stabilization device and its risk factors[J]. BMC MUSCULOSKELETAL DISORDERS,2015,16.
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