English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Objective:In order to decompress the spinal canal in lumbar spinal canal stenosis, we have used reposition type of spinous process splitting posterior decompression using a tubular retractor (METRx quadrant system). Conventional surgery may cause abnormality of the lumbar sagittal alignment which may result in postoperative lumbago, and its treatment is difficult. The aim of this study was to compare lumbar spinal sagittal alignment and clinical results between our surgical method and conventional laminectomy for lumbar spinal canal stenosis. Methods:Surgical technique:After making a 2.5‒cm skin incision, the spinous process was split and a tubular retractor(METRx quadrant system)was inserted. Following a neurodecompression, the separated spinous processes was reconstructed at their base in the laminae. We observed postoperatively 100 patients(women, 54;men, 46;average age, 69.2 years)who underwent our surgical method between January 2009 and March 2012. Patients were followed up for more than one year after surgery. The clinical evaluation was determined by the Japanese Orthopaedic Association(JOA)score(15 points)and the presence of lumbar spinal lordosis and instability in radiography images. Results:The improvement rate of the JOA score and lumbago was 82% and 84.0%, respectively. The postoperative radiography findings revealed that the union rate of the reconstructed spinous process and the bases was 87% at 12 months. Conclusion:The surgical results of this procedure were satisfactory with only minor postoperative lumbago. In decompression of the spinal canal in lumbar spinal canal stenosis, preservation of the back muscles, and reconstruction of the spinous process are crucial for satisfactory postoperative lumbar spinal lordosis. Our surgical method is effective in the reduction of postoperative lumbago. (Received:January 17, 2014;accepted:January 26, 2015)

sekizui geka

The Change of Sagittal Spinal Alignment of Lumbar Spine after Reposition Type of Spinous Process Splitting Posterior Decompression for Lumbar Canal Stenosis