ArticleVeterinary surgery : VS2026
Influence of intra-articular injectate volume on joint surface coverage and leakage following canine elbow arthroscopy: A cadaveric study.
Article in Veterinary surgery : VS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Influence of intra-articular injectate volume on joint surface coverage and leakage following canine elbow arthroscopy: A cadaveric study.Veterinary surgery : VS · 2026Article
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4 authors.
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Abstract
objectiveTo determine whether reduced intra-articular (IA) injection volumes provide complete synovial surface coverage while minimizing leakage following canine elbow arthroscopy. STUDY
designRandomized cadaveric study. ANIMALS: Forty elbow joints from 20 canine cadavers weighing >15 kg.
methodsStandard medial elbow arthroscopy was performed with portals placed under arthroscopic guidance. The egress portal was created along the caudal margin of the medial epicondylar ridge, directed toward the anconeal process. A third, craniomedial instrument portal was created approximately 1 cm cranial to the camera portal. Following arthroscopy, India ink-volume-matched to whole, half, or quarter of a 0.5 mg/kg ropivacaine dose (0.75% concentration)-was injected via the egress portal. Each joint underwent 10 passive flexion-extension cycles before dissection. A masked investigator (ES) qualitatively assessed synovial surface coverage (100%, 75%-99%, 50%-74%, 25%-49%, 0%-24%) and leakage severity (mild, moderate, severe). Portal placement attempts, cadaver age, and bodyweight were recorded.
resultsMean cadaver age was 9.3 years (range: 1-16 years), and mean weight was 29.9 kg (range: 17.9-43.6 kg). Complete (100%) synovial surface coverage was observed in all 40 elbows, including those receiving quarter-dose injections. Leakage occurred in every dose group, with a similar distribution of mild, moderate, and severe categories. Portal placement was successful on the first attempt in 32 elbows (80%) and the second attempt in eight elbows (20%).
conclusionReduced IA injection volumes achieved complete synovial surface coverage but did not reduce leakage severity. CLINICAL SIGNIFICANCE: Reduced intra-articular injection volumes were sufficient to achieve complete synovial surface coverage in this model, suggesting potential flexibility in clinical dosing strategies. Nonetheless, extravasation occurred at all tested volumes, reinforcing that some leakage should be expected in practice.
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