The effect of recumbency and hindlimb position on the lumbosacral interlaminar distance in dogs: a cadaveric computed tomography study
| Autor: | Tiziana Liuti, Stephen N. Greenhalgh, Ambra Panti, Maurizio Longo |
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| Rok vydání: | 2018 |
| Předmět: |
Male
Sacrum animal structures 040301 veterinary sciences Posture Computed tomography Hindlimb experimental study 0403 veterinary science 03 medical and health sciences 0302 clinical medicine Dogs 030202 anesthesiology Cadaver medicine Blinded Animals Single-Blind Method crossover Cross-Over Studies Lumbar Vertebrae General Veterinary medicine.diagnostic_test business.industry Lumbosacral Region 04 agricultural and veterinary sciences Anatomy Position (obstetrics) Seventh lumbar vertebra randomized Anesthesia Female Cadaveric spasm business Tomography X-Ray Computed Lumbosacral joint |
| Zdroj: | Panti, A, Greenhalgh, S, Longo, M & Liuti, T 2018, ' The effect of recumbency and hindlimb position on the lumbosacral interlaminar distance in dogs: a cadaveric computed tomography study ', Veterinary Anaesthesia and Analgesia . https://doi.org/10.1016/j.vaa.2018.05.008 |
| ISSN: | 1467-2995 |
| DOI: | 10.1016/j.vaa.2018.05.008 |
| Popis: | Objective To examine the effect of sternal or lateral recumbency, with or without cranial extension of the hindlimbs, on the distance between the dorsal lumbosacral laminae in dogs. Study design Blinded, randomised, crossover, experimental study. Animals A total of 19 canine cadavers. Methods Computed tomography of the lumbosacral junction was performed in four positions: sternal and right lateral recumbency, with hindlimbs extended cranially or not. Order of positioning was randomised. The lumbosacral interlaminar (LSI) distance, defined as the distance between the dorsal laminae of the seventh lumbar vertebra (caudal margin) and sacrum (cranial margin), was measured for each position by two independent assessors who were unaware of positioning. Mean distances in each position were compared using a paired t-test, corrected for multiple comparisons. Results For n = 19 cadavers [6 female, median (range) age 9 (0.3 – 16) years, 20.4 (1.0 – 34.0) kg], cranial extension of the hindlimbs increased the LSI distance, compared to control, in both sternal (9.2 ± 2.2 mm versus 3.1 ± 1.3 mm, p < 0.001) and right lateral recumbency (8.2 ± 1.9 mm versus 4.9 ± 1.5 mm, p < 0.001). With the hindlimbs extended cranially, sternal recumbency increased LSI distance when compared to right lateral recumbency (p < 0.001). Conclusions and clinical relevance Cranial extension of the hindlimbs in both sternal and lateral recumbency increases the LSI distance to an extent that is both statistically significant and of potential clinical relevance. Although ease of epidural access or injection was not assessed, the small (1 mm) difference in LSI distance between cranial hindlimb extension in sternal versus right lateral recumbency is unlikely to be of clinical relevance. Conversely, cranial extension of the hindlimbs in either sternal or lateral recumbency would be expected to facilitate epidural injection. |
| Databáze: | OpenAIRE |
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