domestic short-haired cat

Reluxation Rates Following Different Techniques for Open Stabilisation of Feline Coxofemoral Dislocations

Elly Russell

Published:  24/01/2019    in:  Knowledge Summaries
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domestic short-haired cat

PICO question

In cats with craniodorsal coxofemoral luxation does surgical stabilisation using a toggle rod technique result in a lower rate of reluxation than using a transarticular pin?

Clinical bottom line

There is currently insufficient evidence to identify if transarticular pinning or a toggle rod technique result in lower rates of reluxation following surgical management of craniodorsal coxofemoral luxations in cats.

Both transarticular pinning and toggling using the Arthrex Mini TightRope system with Arthrex FiberWire suture resulted in 0% reluxation rates at short-term radiographic follow up with 0/20 joints reluxated at 2–6 weeks post-transarticular pinning and 0/4 joints reluxated at 6 weeks post-toggling.

Toggling using an IMEX toggle (IMEX Veterinary Inc.) and polydioxanone (PDS II, Ethicon) suture had a higher reluxation rate of 14% (2/14 joints) at 3.5 to 6 weeks postsurgery.

Longer term follow up of joints stabilised using transarticular pinning found 16.6% reluxation (2/13 joints) when radiographed at least 6 months after surgery.

Small sample sizes, and variations in the length of follow up, inclusion and exclusion criteria and surgical technique significantly challenges any conclusions that may be drawn.

It does appear that reluxation rates for all three techniques investigated here compare favourably to generally quoted reluxation rates following open reduction (28% quoted by Rochereau et al., 2012) and that the use of all reported techniques can be justified for the management of craniodorsal coxofemoral luxations in cats.

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  1. Ash, K., Rosselli, D., Danielski, A., Farrel, M., Hamilton, M. & Fitzpatrick, N. (2012) Correction of craniodorsal coxofemoral luxation in cats and small breed dogs using a modified Knowles technique with the braided polyblend TightRope systems. Vet Comp Ortho Traumatol, 25 (1), pp. 54-60. 
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