Pressure Changes after Reapplication of a Custom Fiberglass Tarsal Splint

Introduction: It is common for bandage changes to be performed by different personnel throughout the treatment period. The aim of this study was to determine sub-bandage pressure changes between initial splint placement and replacement of the bandage by a different person. Our hypothesis was that pressures would change by greater than 20 mm Hg with reapplication of the splint in at least one location.

Materials and Methods: Sub-bandage pressures were measured in lateral recumbency after customizing a fiberglass lateral tarsal splint. Standing and lateral pressures were also measured at 1 hour post placement. A second clinician then reapplied the bandage, reusing the fiberglass splint. Second bandages failed if there was a change in pressure of 20 mm Hg at one location as measured laterally 1 hour after placement.

Results: Of 11 second bandages, 10 failed (90%). All but one location failed due to increases in pressure, but no individual location always failed. There were significant changes between lateral and standing pressures, but no consistent pattern to these changes amongst the dogs.

Discussion/Conclusion: Our hypothesis was confirmed. It remains uncertain if variations in sub-bandage pressures translate to greater risk of bandage complications. We propose a randomized, controlled clinical trial to investigate the incidence of pressure sores between reuse of the splint and creation of a new splint for each bandage. Further study of the relationship of pressures to bandage complications is also vital to help establish safe ranges and inform bandaging instruction.

Acknowledgement: There was no proprietary interest or funding provided for this project.

Publication History

Article published online:
26 October 2022