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Early view-february-2015nicola-kerbyson
1. Early View February 2015 Nicola Kerbyson
Comparative efficacy of intra-articular medications
Intra-articular treatment with triamcinolone compared with triamcinolone with
hyaluronate: A randomised open-label multicentre clinical trial in 80 lame
horses.
JC De Grauw, MC Visser-Meijer, F Lashley, P Meeus and PR van Weeren
http://onlinelibrary.wiley.com/doi/10.1111/evj.12383/abstract
The use of intra-articular corticosteroids in combination with hyaluronate is frequently
said to be superior to intra-articular corticosteroids alone, although no study has
supported this opinion. In this multicentre randomised clinical trial horses with
lameness localised to a single joint were randomly allocated to receive either
triamcinolone acetonide or triamcinolone acetonide in combination with hyaluronate,
via the intra-articular route. Lameness was assessed prior to treatment and three weeks
after. A successful outcome was defined by a reduction in lameness by two or more
grades. The proportion of horses returning to their previous level of performance at 3
months was also assessed. 80 horses were recruited, 39 received triamcinolone alone
and 41 horses received the combined treatment. 87.8% of horses receiving just
triamcinolone had a successful outcome at 3 weeks, compared with 64.1% receiving the
combined treatment (P=0.01). Both treatments were associated with a significant
reduction in lameness and joint effusion. Approximately half the horses in each group
had returned to their previous level of performance at 3 months. Horses aged greater
than 13 years had reduced success rate of the combination treatment.
The bottom line:
The combination treatment of both triamcinolone acetonide and hyaluronate
administered intra-articularly was less effective in the short term than intra-articular
triamcinolone alone; at 3 months approximately half of horses in both treatment groups
had returned to their previous level of performance.