Accuracy and security of pin placement throughout lateral versus dorsal stabilization of lumbar spinal fracture-luxation in canines.
Vet Surg. 2017 Nov;46(eight):1166-1174
Authors: Tran JH, Corridor DA, Morton JM, Deruddere KJ, Snelling SR
OBJECTIVE: To find out the accuracy and security of pin placement for lateral vertebral stabilization to the reference dorsal stabilization.
STUDY DESIGN: A randomized noninferiority trial.
SAMPLE POPULATION: Twenty Greyhound cadaveric lumbar spines (L1-L6).
METHODS: 100 and fifty-nine lumbar vertebral pins positioned in 80 vertebrae had been assessed; these pins had been distributed roughly equally between the dorsal and lateral approaches, and between 2 surgeons. Pin angle accuracy, bone buy distance, and distances from pin to the spinal canal and the aorta had been measured for every pin.
RESULTS: The lateral method was superior for pin angle accuracy and bone buy. The imply angle of deviation was 15.three° with the dorsal method and seven.zero° with the lateral method. The imply bone buy was 16.7 mm with the dorsal method and 22.2 mm with the lateral method. Pins had been positioned at a imply of two.three mm from the spinal canal with the dorsal method and 1.7 mm with the lateral method. Pins had been positioned at a imply of three.eight mm from the aorta with the dorsal method and eight.zero mm with the lateral method. The proportion of pins breaching the spinal canal was 14% with the dorsal method and 19% with the lateral method. Fourteen % of pins positioned through the dorsal method breached the aorta, whereas no pins positioned through the lateral method breached the aorta.
CONCLUSION: Relative to the dorsal method, the lateral method improves angle accuracy, bone buy, and distance between pins, and the aorta and is noninferior close to the gap between pins and the spinal canal.
PMID: 28991378 [PubMed – indexed for MEDLINE]