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Effects of an Optimized Automated Disc Preparation on Clinical and Radiological Outcome of Minimally Invasive Transforaminal Interbody Fusion Procedure | Abstract
ISSN: 2165-7939

Journal of Spine
Open Access

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Research Article

Effects of an Optimized Automated Disc Preparation on Clinical and Radiological Outcome of Minimally Invasive Transforaminal Interbody Fusion Procedure

Alphonse Lubansu*, Jean-Claude Cajot, Laurence Abeloos, Landry Drogba, Olivier De Witte
Department of Neurosurgery, Erasme Hospital, UniversitéLibre de Bruxelles, ULB, Belgium
Corresponding Author : Alphonse Lubansu
Department of Neurosurgery, Erasme Hospital
Université Libre de Bruxelles (ULB), 808 route de Lennik
B-1070 Brussels, Belgium
Tel: +32-2- 5553768
Fax: +32-2-5553755
E-mail: [email protected]
Received September 30, 2013; Accepted October 15, 2013; Published October 18, 2013
Citation: Lubansu A, Cajot JC, Abeloos L, Drogba L, De Witte O (2013) Effects of an Optimized Automated Disc Preparation on Clinical and Radiological Outcome of Minimally Invasive Transforaminal Interbody Fusion Procedure. J Spine S5:005. doi:10.4172/2165-7939.S5-005
Copyright: © 2013 Lubansu a, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Objective: In minimally invasive techniques for transforaminal lumbar interbody fusion (MIS TLIF) access to the disc and by consequence, the extension of the discectomy can be reduced. Insufficient disc removal and endplate violation can lead to non-unions, subsidence and pseudoarthroses. In this study, we compare the quality of disc preparation, volume of bone graft and clinical results in a group of patients who underwent MIS TLIF with discectomy and endplate preparation aided by an automated discectomy device, the enSpireTM Flex MIS Surgical Discectomy System (study group) to a control group with classical, manual instrumentation for disc preparation.

Materials and methods: Twenty-seven consecutive patients were enrolled in the study group and 33 patients in the control group. All patients received similar mixture of autologous bone and cadaver allograft. Disc volume and the quantity of graft placed in the disc space was measured on the discharge CT scan and compared in a blinded, independent radiology review. Clinical outcomes assessed using the Visual Analog Scale (VAS) for leg and low back pain and the Oswestry Disability Index (ODI) were compared at 12 months postoperative.

Results: The mean volume of bone graft placed and the ratio bone graft/nucleus was higher in the study group (6.21 cm3 vs. 4.39 cm3 ; p<0001 and 76.8% vs. 57.8%; p<0.0001). The mean Patient Satisfaction Index (PSI) of the EnSpire group was statistically higher than the control group (4.6 ± 0.6 vs. 3.9 ± 0.7).

Conclusion: In the challenging MIS TLIF approach, we demonstrate that by using the enSpire™ Flex MIS Surgical Discectomy System, we can optimize the extension and quality of the discectomy, increase the volume of bone graft, and achieve better clinical outcomes.

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