Redundant Nerve Root Syndrome Research Articles

Effectiveness of caudal block in patients with spinal stenosis accompanied by redundant nerve root syndrome

Redundant nerve root syndrome (RNRS) is characterized by tortuous, elongated, and enlarged nerve roots in patients with lumbar spinal stenosis. This study was performed to evaluate the effects of caudal block in patients with RNRS and assess factors associated with RNRS. Patients with lumbar spinal stenosis who underwent caudal block were retrospectively analyzed. A comparative analysis of pain reduction was conducted between patients with RNRS (Group R) and those without RNRS (Group C). Generalized estimating equation analysis was used to identify factors related to the treatment response. RNRS-associated factors were analyzed using logistic regression analysis. In total, 54 patients were enrolled (Group R, n = 22; Group C, n = 32). Group R had older patients than Group C. The caudal block showed less pain reduction in Group R than in Group C, but the difference was not statistically significant. Generalized estimating equation analysis showed that RNRS was the factor significantly associated with the treatment response. The dural sac anteroposterior diameter and left ligamentum flavum thickness were associated with RNRS in the logistic regression analysis. Caudal block tended to be less effective in patients with than without RNRS, but the difference was not statistically significant.

Effectiveness of percutaneous lumbar foraminoplasty in patients with lumbar foraminal spinal stenosis accompanying redundant nerve root syndrome: A retrospective observational study.

The clinical outcomes of redundant nerve root syndrome (RNRS) in patients with lumbar foraminal spinal stenosis (LFSS) are currently unknown. The purpose of this study was to evaluate the postprocedural outcomes of RNRS in LFSS after percutaneous lumbar foraminoplasty (PLF) and identify the factors associated with RNRS by comparative analysis between patients with and without RNRS.Patients with LFSS who underwent PLF were retrospectively analyzed. RNRS is defined as the presence of thick, elongated, and tortuous structures in the cauda equine associated with lumbar spinal stenosis. Based on the sagittal or transverse magnetic resonance imaging scans obtained before the PLF, the patients were stratified into 2 groups. Comparative analysis was performed between patients with RNRS (group R) and those without RNRS (group C).From March 2016 to January 2019, 8 of the 21 (38.1%) patients undergoing PLF showed signs of RNRS on magnetic resonance imaging images. PLF showed a tendency for less therapeutic effect with respect to changes in pain intensity in group R as compared to group C, but there were no statistically significant differences between the 2 groups. RNRS correlated with the cross-sectional area (CSA) of the dural sac and LFSS grade (P < .05). The CSA of the dural sac was smaller and the grade of LFSS was higher in group R than in group C.RNRS is commonly associated with lumbar spinal stenosis and could affect the treatment outcomes. Clinical outcomes in group R were not statistically different from those in group C, although group R showed slightly worse outcomes. The independent factors associated with RNRS were CSA of the dural sac and the LFSS grade.

Redundant nerve root syndrome of the cauda equina: the benefits of 3D CISS MRI sequence

Redundant nerve root syndrome of the cauda equina: the benefits of 3D CISS MRI sequence

Magnetic resonanse imaging findings of redundant nerve roots syndrome

Amac: Bu calismanin amaci, lomber stenoza eslik eden Kauda Equinanin Redundant Sinir Koku Sendromunun (RNRS) magnetik rezonans goruntuleme (MRG) ozelliklerinin tanimlanmasidir. Gerec ve yontem: Toplam 8906 lomber MR goruntusu retrospektif olarak degerlendirildi. RNRS, MR goruntulerinde lomber bolgede spinal stenoza eslik eden, subaraknoid mesafede genisleme ve elonge sinir koklerinin tortiyoz seyiri olarak tanimlandi. Bulgular: Toplam 8 hasta RNRS olarak tanimlandi. Sekiz RNRS hastasindan 6\'si kadin idi. MRG ile RNRS olarak tanimlanan hastalarin ortalama yasi 70.0±15.0 (aralik; 39-87) yil idi. Spinal kanalin anterior-posterior ve transvers caplari (mm) olculdu. Lomber MRG\'de spinal kanal on-arka capi ortalamasi 11.50±2.0 mm (aralik; 8.0-14.0 mm) ve spinal kanal transvers capi ortalamasi ise 8.37±0.51 mm (aralik; 8.0-9.0 mm) idi. Sonuc: Spinal stenozlu olgularda RNRS dusunulmelidir.

Redundant Nerve Roots Syndrome of the Cauda Equina

The redundant nerve roots syndrome (RNRS) of the cauda equina is a rare anatomo clinical entity defined by the association between severe stenosis of the lumbar spinal canal and the presence of elongated tortuous nerve roots. Surgical treatment, in addition to decompressive laminectomy, may also require an expansive dural plasty. We report the rare case of an achondroplasic patient with RNRS and review the relevant literature emphasising the primary diagnostic role of myelography in selected cases of severe lumbar spinal canal stenosis.

Suggested pathological basis of ???redundant nerve root syndrome??? of the cauda equina

Suggested pathological basis of ???redundant nerve root syndrome??? of the cauda equina