| Autor: |
Rodríguez-Sanz J; Faculty of Medicine and Health Science of Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallés, Spain.; ACTIUM Functional Anatomy Group, 08195 Sant Cugat del Vallès, Spain., Borrella-Andrés S; Health Sciences Faculty, Department of Physiatry and Nursing, University of Zaragoza, 50009 Zaragoza, Spain., López-de-Celis C; Faculty of Medicine and Health Science of Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallés, Spain.; ACTIUM Functional Anatomy Group, 08195 Sant Cugat del Vallès, Spain.; Fundació Institut, Universitari per a la Recerca a l'Atenció, Primària de Salut Jordi Gol i Gurina (IDIAPJGol), 08028 Barcelona, Spain., Albarova-Corral I; Health Sciences Faculty, Department of Physiatry and Nursing, University of Zaragoza, 50009 Zaragoza, Spain., Pérez-Bellmunt A; Faculty of Medicine and Health Science of Universitat Internacional de Catalunya, 08195 Sant Cugat del Vallés, Spain.; ACTIUM Functional Anatomy Group, 08195 Sant Cugat del Vallès, Spain., Bueno-Gracia E; Health Sciences Faculty, Department of Physiatry and Nursing, University of Zaragoza, 50009 Zaragoza, Spain., Malo-Urriés M; Health Sciences Faculty, Department of Physiatry and Nursing, University of Zaragoza, 50009 Zaragoza, Spain. |
| Abstrakt: |
Background: Approximately 40% of chronic low back pain patients have a discogenic origin. In relation to intervertebral disc injuries, most of them are in the posterior and lateral zone of the disc, involving the anterior lumbar roots and the spinal cord. Objective : The objective was to analyze and describe the accuracy and safety of a new ultrasound-guided approach to target the posterolateral part of the intervertebral lumbar discs in cadaveric specimens. Methods : A cross-anatomical study on sixty cadaver intervertebral lumbar discs was performed. A needle was introduced in the posterolateral part of the discs using ultrasound guidance. A transducer was placed in the anterior abdomen to visualize the discs in cross-section as well. A dissection of the specimen was performed to visualize the final position of the needle tip and its distance from the main lumbar structures. The angulation, length, and distance of the needle from the vertebral spine, the relevant ultrasound anatomical references, and the accuracy of the procedure were evaluated. Results : The needle tip reached the posterolateral part of the discs in 93.3% of the attempts. The mean length of the needle inserted was 79 ± 15 mm, the angulation 129 ± 20.2°, the distance from the spinous process was 77 ± 19 mm, and the distance of the needle to the nerve roots was 2.0 ± 1.2 mm. No statistically significant differences between genders were found. Conclusions : An ultrasound-guided technique can be an accurate and safe technique to perform invasive procedures on the posterolateral part of the intervertebral lumbar discs. |
