Speaker Credentials
MS-II
Speaker Credentials
BS
College
College of Allopathic Medicine
Medical Specialty
General Surgery
Format
Poster
Start Date
November 2024
End Date
November 2024
Track
3
Abstract
Objective. This study was conducted to determine whether utilization of the superior root of ansa cervicalis (SRAC) as the donor for phrenic nerve (PN) transfer is technically feasible. Background. In patients with high cervical spinal cord injury resulting in diaphragmatic paralysis, another donor, the spinal accessory nerve, has been used successfully to reinnervate the PN and restore diaphragmatic function. Methods. Eight neck sides underwent cadaveric surgery. The sternocleidomastoid muscle was retracted posteriorly, the SRAC and PN were isolated, and the SRAC was cut near its distal end and transposed to the ipsilateral PN as it crossed the anterior scalene muscle. Additionally, 50 neck sides were assessed for the distance between the SRAC and PN, as well as the diameter of each nerve. Results. Tension-free transposition of the SRAC to the PN was achieved in all eight cases. The mean movable length of the SRAC was 52 mm, with a mean excess length after transposition of 16 mm. The SRAC and PN shared similar diameters (1.7 mm and 2.0 mm, respectively) and were found to be in close proximity (17 mm). Conclusion. To our knowledge, SRAC-to-PN transfer has never before been investigated. This cadaveric study found the surgical approach to be technically feasible. Clinical trials may provide a valuable treatment option for patients with diaphragmatic paralysis due to high cervical spinal cord injury. Grants. None.
Included in
Nervous System Commons, Nervous System Diseases Commons, Neurosurgery Commons, Surgery Commons, Surgical Procedures, Operative Commons, Translational Medical Research Commons
Ansa Cervicalis-to-Phrenic Nerve Transfer: Technical Note With Potential Application for Diaphragmatic Reanimation in Patients With High Cervical Spinal Cord Injury
Objective. This study was conducted to determine whether utilization of the superior root of ansa cervicalis (SRAC) as the donor for phrenic nerve (PN) transfer is technically feasible. Background. In patients with high cervical spinal cord injury resulting in diaphragmatic paralysis, another donor, the spinal accessory nerve, has been used successfully to reinnervate the PN and restore diaphragmatic function. Methods. Eight neck sides underwent cadaveric surgery. The sternocleidomastoid muscle was retracted posteriorly, the SRAC and PN were isolated, and the SRAC was cut near its distal end and transposed to the ipsilateral PN as it crossed the anterior scalene muscle. Additionally, 50 neck sides were assessed for the distance between the SRAC and PN, as well as the diameter of each nerve. Results. Tension-free transposition of the SRAC to the PN was achieved in all eight cases. The mean movable length of the SRAC was 52 mm, with a mean excess length after transposition of 16 mm. The SRAC and PN shared similar diameters (1.7 mm and 2.0 mm, respectively) and were found to be in close proximity (17 mm). Conclusion. To our knowledge, SRAC-to-PN transfer has never before been investigated. This cadaveric study found the surgical approach to be technically feasible. Clinical trials may provide a valuable treatment option for patients with diaphragmatic paralysis due to high cervical spinal cord injury. Grants. None.