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  1. Fulltext MRI findings in failed back surgery syndrome
    Fan YF, Chong VF
    Med J Malaysia, 1995 Mar;50(1):76-81.
    PMID: 7752981
    The failed back surgery syndrome (FBSS) is a difficult diagnostic problem both clinically and radiologically. Forty-three patients were evaluated prospectively with magnetic resonance imaging (MRI) and forty-five scans were obtained. Fifteen patients (33%) showed recurrent disc prolapse; 15 (33%) patients postoperative epidural fibrosis; 8 (18%) both recurrent disc prolapse and epidural scarring; 4 (9%) patients spinal stenosis, 2 whom also had both epidural fibrosis and recurrent disc prolapse; 2 (4%) normal scans; 2 (4%) patients arachnoiditis and 1 (2%) patient postoperative pseudomeningocoele formation. Gadolinium-diethylenetriaminepenta-acetic acid (Gd-DTPA)-enhanced MRI was particularly helpful in differentiating recurrent disc prolapse and epidural fibrosis. Surgical findings in 11 patients were available. MRI correctly predicted recurrent disc prolapse in 6 patients, epidural fibrosis in 4 patients and spinal stenosis in 1 patient illustrating the value of this modality in the evaluation of FBSS.
    Matched MeSH terms: Back Pain/surgery*
  2. CLINICAL AND IMAGING OUTCOMES OF XLIF SURGERY FOR LUMBAR SPINAL STENOSIS
    Hoang T, Kieu H, Nguyen V, Tran T, Ngee T, Duong H
    Georgian Med News, 2024 Jun.
    PMID: 39230213
    BACKGROUND: To evaluate the treatment outcomes of lateral interbody bone graft surgery and posterior percutaneous screws for lumbar spinal stenosis Methods: This is a cross-sectional descriptive study. There were 27 patients with 30 segments of surgery diagnosed with lumbar spinal stenosis that were surgically treated with the XLIF method. Clinical outcomes measured included VAS scores for lower back pain and leg pain, ODI, and JOA scores. Magnetic resonance imaging of the lumbar spine after surgery was used to evaluate indirect decompression. X-ray or CT scan to evaluate bone fusion after 6 months of surgery. Differences were determined by independent T-test.

    RESULTS: There were 27 patients with 30 segments of surgery. They were 12 males and 15 females with an average age of 58.81±8.1. There was significant improvement in VAS for lower back pain from 7.11±1.31 to 3.67±1.3, VAS for leg pain from 6.81±2.19 to 1.59±1.89, ODI from 26.41±8.95 to 13.69±8.34, and JOA score from 7.63±2.87 to 13.5±1.73. A-P diameter increased 134%, lateral diameter increased 120%, lateral recess depth increased 166%, disc height increased 126%, foraminal height increased 124%, spinal canal area increased 30%. The p-values were all <0.001. The average hospital stay was 6.79±3.01 days. Complications included 1 pedicle screw malformation, 1 ALL avulsion fracture, 1 abdominal herniation, 1 venous damage, 1 failure.

    CONCLUSION: XLIF surgery presents a favorable option for patients with lumbar spinal stenosis. This is a minimally invasive surgical method that reduces pain, reduces bleeding, and is effective in indirectly decompressing the spinal canal both clinal and imaging.

    Matched MeSH terms: Low Back Pain/surgery
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