![]() Laser ablation formed small and localized cavities suggesting that the technique is not suitable to remove large volumes of material unless it is developed and optimized for this application. When using rongeurs, material was removed non-homogeneously both from the nucleus and annulus regions. Post-nuclectomy, 60% of the rongeurs group specimens showed changes in the endplate profile while 40% from the laser group showed subchondral marrow changes.ĭiscussion: From the MRIs, homogeneous cavities were seen in the center of the disc when using the automated shaver. Nuclectomy using the automated shaver and rongeurs significantly reduced the toe-region stiffness (p = 0.036), while the reduction in the linear region stiffness was significant only for the rongeurs group (p = 0.011). Results: When using the automated shaver and rongeurs similar volumes of disc material were removed (2.51 ± 1.10% and 2.76 ± 1.39% of the total disc volume, respectively), while considerably less material was removed using the laser (0.12 ± 0.07%). Before and after nucleotomy axial mechanical tests were performed and T2-weighted 9.4T MRIs were acquired for each specimen. Fifteen vertebra-disc-vertebra lumbar specimens were acquired from six donors (40 ± 13 years) and split into three groups. Material & methods: Comparisons were made in terms of mass, volume and location of material removal, changes in disc height, and stiffness. Multiple techniques have been considered to perform a nuclectomy, however, the advantages and disadvantages of each are not well understood.Īims: This in vitro biomechanical investigation on human cadaveric specimens aimed to quantitatively compare three nuclectomy techniques performed using an automated shaver, rongeurs, and laser. Lumbar Fusion Surgery Information Bookletīackground: Nuclectomy, also known as nucleotomy, is a percutaneous surgical procedure performed to remove nucleus material from the center of the disc.Balloon Kyphoplasty Information Booklet.Lumbar Decompression + Stabilisation Information Booklet.Lumbar Discectomy Decompression Information Booklet.Percutaneous Laser Disc Decompression Information Booklet.North West London Physio & Treatment Centre.Best Spinal Surgeon UK – Mr Mo Akmal Profile. ![]() Mr Mo Akmal MBBS BSc (Hons) MD FRCS (Orth).keyhole spinal surgery Or Minimally invasive.
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