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Posterior interbody fusion using a diagonal cage with unilateral transpedicular screw fixation for lumbar stenosis

Few reports have described the combined use of unilateral pedicle screw fixation and interbody fusion for lumbar stenosis. We retrospectively reviewed 79 patients with lumbar stenosis. The rationale and effectiveness of unilateral pedicle screw fixation were studied from biomechanical and clinical perspectives, aiming to reduce stiffness of the implant. All patients were operated with posterior interbody fusion using a diagonal cage in combination with unilateral transpedicular screw fixation and had reached the 3-year follow-up interval after operation. The mean operating time was 115 minutes (range=95-150 min) and the mean estimated blood loss was 150 mL (range=100-200 mL). The mean duration of hospital stay was 10 days (range=7-15 days). Clinical outcomes were assessed prior to surgery and reassessed at intervals using Denis’ pain and work scales. Fusion status was determined from X-rays and CT scans. At the final follow-up, the clinical results were satisfactory and patients showed significantly improved scores (p<0.01) either on the pain or the work scale. Successful fusion was achieved in all patients. There were no new postoperative radiculopathies, or instances of malpositioned or fractured hardware. Posterior interbody fusion using a diagonal cage with unilateral transpedicular fixation is an effective treatment for decompressive surgery for lumbar stenosis Keywords : Adult,blood,Bone Screws,China,Decompression,Surgical,Diskectomy,Female,Humans,instrumentation,Internal Fixators,Lumbar Vertebrae,Male,methods,Middle Aged,Pain,Patients,Radiculopathy,Recovery of Function,Retrospective Studies,Spinal Fusion,Spinal Stenosis,surgery,Time,Treatment Outcome,Universities,, Interbody,Fusion,Using,Diagonal, fibromyalgia trigger points massage

Date of Publication : 2011 Mar

Authors : Zhao J;Zhang F;Chen X;Yao Y;

Organisation : Spinal Center, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong 226001, Jiangsu, China. [email protected]

Journal of Publication : J Clin Neurosci

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/21237659

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