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2. Segment-Specific Orientation of the Dorsal and Ventral Roots for Precise Therapeutic Targeting of Human Spinal Cord

Author

Ahad M. Siddiqui, Luke J. Staehnke, Bruce E. Knudsen, Anthony J. Windebank, Nirusha Lachman, Peter J. Grahn, Priska Summer, Alan Mendez, Ogeneitsega J. Joseph, Prathima Basa, Igor Lavrov, Riazul Islam, and Timur Latypov

Subjects
Aged, 80 and over, Male, Dorsum, Lumbar Vertebrae, General Medicine, Anatomy, Biology, Spinal cord, Therapeutic targeting, Thoracic Vertebrae, Neuromodulation (medicine), Lumbar, medicine.anatomical_structure, Spinal Cord, Cadaver, Cervical Vertebrae, medicine, Humans, Ventral Roots, Female, Anatomic Landmarks, Spinal Nerve Roots, Intervertebral foramen
Abstract

Objective To provide precise description of the dorsal and ventral roots orientation along with the main spinal cord anatomical measurements and their segment-specific variations. Patients and Methods We collected and analyzed the measurements of the spines, spinal cords, and dorsal and ventral roots (C2-L5) of nine adult cadavers (five males and four females). Results This study for the first time provides analysis of the dorsal and ventral roots orientation along with spinal cord anatomical measurements and their segment-specific distribution. The results of this study showed less variability in rostral root angles compared with the caudal. Dorsal and ventral rootlets were oriented mostly perpendicular to the spinal cord at the cervical level and had more parallel orientation to the spinal cord at the thoracic and lumbar segments. The number of rootlets per root was greatest at dorsal cervical and lumbar segments. Spinal cord transverse diameter and width of the dorsal columns were largest at cervical segments. The strongest correlation between the spinal cord and vertebrae structures was found between the length of intervertebral foramen to rostral rootlet distance and vertebral bone length. Conclusion These results demonstrate consistent variation in spinal cord anatomical features across all tested subjects. The results of this study can be used to locate spinal roots and main spinal cord landmarks based on bone marks on computed tomography or X-rays. These results could improve stereotactic surgical procedures and electrode positioning for neuromodulation procedures.

Published
2021
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3. P13. Transduction of the rat spinal cord using adenoassociated virus serotype 2.5

Author

Siddiqui, Ahad M, primary, Garcia, Micklaus, additional, Sorto, Litsi Ocampo, additional, Schwab, Stephan, additional, la Vega, Rodolfo E. De, additional, Chen, Bingkun, additional, Coenen, Michael, additional, Nesbitt, Jarred J., additional, Zhang, Shuya, additional, Madigan, Nicolas N., additional, Evans, Chris, additional, and Windebank, Anthony J., additional

Published
2022
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5. Segment-Specific Orientation of the Dorsal and Ventral Roots for Precise Therapeutic Targeting of Human Spinal Cord

Author

Mendez, Alan, primary, Islam, Riazul, additional, Latypov, Timur, additional, Basa, Prathima, additional, Joseph, Ogeneitsega J., additional, Knudsen, Bruce, additional, Siddiqui, Ahad M., additional, Summer, Priska, additional, Staehnke, Luke J., additional, Grahn, Peter J., additional, Lachman, Nirusha, additional, Windebank, Anthony J., additional, and Lavrov, Igor A., additional

Published
2021
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6. Epidural electrical stimulation assisted gait improvements in spinal cord injured rats using a combinatorial strategy with scaffolds, compounds, cells, and motor training

Author

Siddiqui, Ahad M., primary, Islam, Riazul, additional, Cuellar, Carlos, additional, Silvernail, Jodi, additional, Knudsen, Bruce, additional, Curley, Dallece, additional, Strickland, Tammy, additional, Manske, Emilee, additional, Latypov, Timur, additional, Zhang, Shuya, additional, Summer, Priska, additional, Nesbitt, Jarred J., additional, Chen, Bingkun, additional, Grahn, Peter, additional, Madigan, Nicolas N., additional, Yaszemski, Michael J., additional, Lavrov, Igor, additional, and Windebank, Anthony J., additional

Published
2020
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7. Effectiveness of the 10-valent pneumococcal conjugate vaccine against radiographic pneumonia among children in rural Bangladesh: A case-control study

Author

McCollum, Eric D., primary, Ahmed, Salahuddin, additional, Roy, Arun D., additional, Chowdhury, Nabidul H., additional, Schuh, Holly B., additional, Rizvi, Syed J.R., additional, Hanif, Abu A.M., additional, Khan, Ahad M., additional, Mahmud, Arif, additional, Pervaiz, Farhan, additional, Harrison, Meagan, additional, Reller, Megan E., additional, Simmons, Nicole, additional, Quaiyum, Abdul, additional, Begum, Nazma, additional, Santosham, Mathuram, additional, Checkley, William, additional, Moulton, Lawrence H., additional, and Baqui, Abdullah H., additional

Published
2020
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8. Epidural electrical stimulation assisted gait improvements in spinal cord injured rats using a combinatorial strategy with scaffolds, compounds, cells, and motor training

Author

Priska Summer, Bingkun Chen, Emilee Manske, Shuya Zhang, Ahad M. Siddiqui, Dallece E. Curley, Anthony J. Windebank, Jodi L. Silvernail, Bruce E. Knudsen, Michael J. Yaszemski, Nicolas N. Madigan, Carlos A. Cuellar, Igor Lavrov, Tammy Strickland, Riazul Islam, Timur Latypov, Peter J. Grahn, and Jarred J. Nesbitt

Subjects
medicine.medical_specialty, medicine.anatomical_structure, Gait (human), Physical medicine and rehabilitation, Motor training, business.industry, medicine, Surgery, Orthopedics and Sports Medicine, Stimulation, Neurology (clinical), Spinal cord, business
Published
2020
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