An Assessment of a New Navigatable Percutaneous Disc Decompression Device (L'DISQ) Through Histologic Evaluation and Thermo-Mapping in Human Cadaveric Discs

Hong, Young Ki; Derby, Richard; Wolfer, Lee R.; Kim, Sang Un; Kang, Bong Su; Kim, Nack Hwan; Yoo, Seung Han; Lee, Seok Jun; Lee, Sang‐Heon

doi:10.1111/j.1526-4637.2012.01447.x

Cited by 11 publications

(14 citation statements)

References 1 publication

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“…L-DISQ is a device that approaches the herniated disc sensitively along the intradiscal pathway and vaporizes the herniated nucleus using plasma particles and bipolar radiofrequency plasma for decompression. This device has been replaced with a valid form called L-DISQ-C to enter the cervical intervertebral space (17).…”

Section: Discussionmentioning

confidence: 99%

“…Since the distance between two electrodes at the end of L-DISQ is 0.2 mm, a nerve root farther from the electrode tip than 0.2 mm is theoretically protected from electrical damage. During the procedure, electrical current passes through the other electrode instead of the nerve root (17). Additionally, the thin outer membrane ring is a good barrier for electrical current and theoretically reduces nerve damage due to bipolar electrical coupling (13).…”

Section: Discussionmentioning

confidence: 99%

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Percutaneous plasma laser disc coagulation and navigable ablation decompression in the treatment of cervical disc herniation: A single center experience.

Ceylan¹,

Asik²

2019

Turk J Med Sci

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Background/aim: We aimed to compare the effectivity of percutaneous disc coagulation therapy (PDCT) and navigable ablation decompression treatment (L-DISQ) in patients who were diagnosed with cervical disc herniation. Materials and methods:Visual analog scale (VAS) and Neck Pain Index (NPI) scores were recorded initially and at the 1st, 3rd, 6th, and 12th months after the procedures. Patient Satisfaction Scale (PSS) scores were recorded 12 months after the procedures.Results: Mean VAS scores were 7.55 and 3.1 points in the PDCT group and 7.6 and 3.00 points in the L-DISQ group; mean NPI scores were 34.2 and 20.75 points in the PDCT group and and 34.1 and 20.4 points in the L-DISQ group initially and at the 12th month. When compared between months, there was a significant decrease in time-dependent VAS and NPI scores in both PDCT and L-DISQ groups (P = 0.001). Some complications included esophageal, vascular, and neural injuries; hoarseness; Horner syndrome; infections; dural puncture; and muscle spasm. The only difference between groups was the rate of cervical spasm within 1 month after the procedure: 75% in the PDCT group and 15% in the L-DISQ group. Conclusion:The diameter of the canal of the cervical vertebrae is narrower than of the lumbar and thoracic regions; therefore, the smaller part of the disc may be sufficient to create clinical signs. The response to decompression therapies is faster in the case of cervical percutaneous procedures that are performed correctly. Proper patient selection and practitioner's experience are important in the treatment success.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Percutaneous plasma laser disc coagulation and navigable ablation decompression in the treatment of cervical disc herniation: A single center experience.

Ceylan¹,

Asik²

2019

Turk J Med Sci

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“…Although not presented in this paper, Von‐Mises stresses in the periphery and vicinities of the hole predicted in FE analyses were much less than the failure stresses when subjected to axial compressive force and bending moments. Furthermore, no tearing or failure of the AF with a 2.5 mm hole was found in clinical studies of the efficacy of a navigable percutaneous decompression device which is introduced through a 2.5 mm punctured in the AF and ablates the NP for the treatment of a disc herniation in the posterior AF. These finding imply that a risk of complications associated a small hole in the AF may be low.…”

Section: Discussionmentioning

confidence: 99%

Biomechanical function of a balloon nucleus pulposus replacement system: A human cadaveric spine study

Lee

Lim

Lee

et al. 2017

Journal Orthopaedic Research

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With recent advances in motion-sparing techniques in spine surgery, disc nucleus replacement (DNR) has been introduced as a viable method to restore the biomechanical functions of the spine. Several methods of DNR have been proposed in the literature. However, the risk of device migration or extrusion is a major issue that should be addressed for a successful DNR. DNR using a balloon nucleus (BN) filled with pressurized fluid may be capable of reducing such risks while preserving the advantages of DNR. The objective of this study was to investigate the biomechanical functionalities of the human cadaveric lumbar motion segments with a custom made BN filled with saline at internal fluid pressure of 0.3 or 0.6 MPa in terms of axial and rotational flexibilities of the L4-L5 motion segment. Axial flexibility was quantified by the axial displacement resulting from an axial compressive force of 400 N while the rotational flexibility by the range of motions determined as the rotational angles in response to a pure moment of 6.0 Nm in flexion, extension, and right- and left-lateral bending directions. These tests were performed successively on the motion segment in the following conditions: intact, post nucleotomy, implanting BN with 0.3 MPa, and BN with 0.6 MPa. The nucleotomy was found to significantly increase both the axial and rotational flexibilities while the implantation of the BN reduced the axial and rotational flexibilities to those of the intact segment. The axial and rotational flexibilities of the segment with the BN with 0.3 MPa were greater than those of the segment with the BN with 0.6 MPa. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:167-173, 2018.

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“…The advantage of the L'DISQ device compared with nucleoplasty is the ability to curve and rotate the wand, which allows coblation of tissue within outer one‐third annular tears [9]. To the extent that discogenic pain is due to nuclear fragments trapped within the outer annular fibers producing localized mechanical strain and sensitization of outer annular nociceptors, the ability to reach the site of pathology should provide a more robust outcome compared with decompression of the central nucleus.…”

Section: Discussionmentioning

confidence: 99%

“…Newly available in Korea is a navigable percutaneous decompression device named L'DISQ (U&I Co. Ltd., Uijeongbu, Korea) that can reach the outer annulus [9,10]. The wand can be curved to the desired angles by rotating the control wheel and can access the desired site posterior torn annulus.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of a New Navigable Percutaneous Disc Decompression Device (L'DISQ) in Patients with Lumbar Discogenic Pain

et al. 2015

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An Assessment of a New Navigatable Percutaneous Disc Decompression Device (L'DISQ) Through Histologic Evaluation and Thermo-Mapping in Human Cadaveric Discs

Abstract: L'DISQ can be successfully navigated to the target zones, and disc tissue ablated without thermal or structural damage to the adjacent neural tissues.

Cited by 11 publications

References 1 publication

Percutaneous plasma laser disc coagulation and navigable ablation decompression in the treatment of cervical disc herniation: A single center experience.

Percutaneous plasma laser disc coagulation and navigable ablation decompression in the treatment of cervical disc herniation: A single center experience.

Biomechanical function of a balloon nucleus pulposus replacement system: A human cadaveric spine study

Effectiveness of a New Navigable Percutaneous Disc Decompression Device (L'DISQ) in Patients with Lumbar Discogenic Pain

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