Factors affecting successful ultrasound-guided injection into the podotrochlear bursa using a palmarolateral approach.

Autor: Espinosa-Mur P; Department of Clinical Studies, Ontario Veterinary College Health Sciences Center, University of Guelph, Guelph, Ontario, Canada., Whitcomb MB; Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California, USA., Kass PH; Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, California, USA., Vanslambrouck L; Equitom Equine Clinic, Meldert, Belgium., Galuppo LD; Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, California, USA.
Jazyk: angličtina
Zdroj: Veterinary surgery : VS [Vet Surg] 2021 Nov; Vol. 50 (8), pp. 1624-1633. Date of Electronic Publication: 2021 Aug 25.
DOI: 10.1111/vsu.13713
Abstrakt: Objective: To evaluate potential factors affecting ultrasonographic visibility of the suprasesamoidean region and the success rate of ultrasound-guided injection (USGI) into the podotrochlear bursa (PB).
Study Design: Ex vivo, experimental study.
Animals: 24 cadaveric forelimbs.
Methods: The PB was distended with 0, 1, or 2 ml of iodinated contrast material and saline under radiographic guidance. Ultrasonographic visibility of the suprasesamoidean region and PB was graded before and after distention with the limb loaded in three positions (vertical, cranial and caudal). Two operators with different experience levels performed an USGI into the PB with methylene blue (12 limbs each [four limbs with each of three volumes of PB distension]) using a palmarolateral approach and caudal foot placement. Limbs were frozen and sectioned to assess accuracy.
Results: Ultrasonographic visibility scores of the suprasesamoidean region (p = .0081) and PB (p < .0001) were improved using a caudal foot placement. Higher visibility grades of the suprasesamoidean region were associated with higher injection success rate (p = .047). The injection success was 75% (9/12) for the experienced versus 41.6% (5/12) for the less experienced operator (p = .14). PB distension improved visibility during caudal foot placement (p = .013) but not injection success rates (p = .78).
Conclusion: Caudal foot placement enhances visibility of the PB and suprasesamoidean region. Limbs with poor visibility of the suprasesamoidean region are more likely to undergo a failed USGI.
Clinical Significance: The lateral USGI approach should be performed only in cases of optimal visibility. The reported success rates support the technical challenge of PB injections.
(© 2021 American College of Veterinary Surgeons.)
Databáze: MEDLINE
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