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Vet Comp Orthop Traumatol 2019; 32(06): 467-474
DOI: 10.1055/s-0039-1693471
Original Research
Georg Thieme Verlag KG Stuttgart · New York

Evaluation of Fluoroscopic-Guided Closed Reduction versus Open Reduction of Sacroiliac Fracture-Luxations Stabilized with a Lag Screw

Amanda Rollins
1   VCA Animal Specialty and Emergency Center, Los Angeles, California, United States
2   Department of Surgery, The Animal Medical Center, New York, New York, United States
,
Raviv Balfour
1   VCA Animal Specialty and Emergency Center, Los Angeles, California, United States
,
David Szabo
1   VCA Animal Specialty and Emergency Center, Los Angeles, California, United States
,
Christina M. Chesvick   †
1   VCA Animal Specialty and Emergency Center, Los Angeles, California, United States
› Institutsangaben Funding None.
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Publikationsverlauf

16. Oktober 2018

05. Juni 2019

Publikationsdatum:
27. August 2019 (online)

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Abstract

Objective The aim of this study was to compare radiographic outcomes of open reduction versus fluoroscopic-guided closed reduction (FGCR) of sacroiliac fracture-luxations stabilized with a lag screw, as well as peri- and postoperative complications.

Study Design Medical records (2010–2015) and radiographs of dogs and cats diagnosed with sacroiliac fracture-luxation that underwent open reduction without fluoroscopic guidance (n = 24) or FGCR (n = 17) were retrospectively reviewed to assess sacroiliac fracture-luxation reduction and lag screw placement, and lag screw loosening on follow-up radiographs (range, 1–8 weeks postoperatively) when available. Peri- and postoperative complications were also recorded.

Results Optimal screw depth to sacral body width ratio (>60%) was achieved in a significantly higher proportion of FGCR cases than openly reduced fracture-luxations. A significantly lower rate of lag screw loosening was found for FGCR cases. Few peri- and postoperative complications were noted across both groups. Four out of 17 FGCR cases requiring conversion to an open approach were excluded from data analysis; they had a longer duration from trauma to surgical repair than the median duration from trauma to surgical repair for cases successfully reduced in closed fashion.

Conclusion Fluoroscopic-guided closed reduction of sacroiliac fracture-luxations leads to consistently more optimal screw placement, as well as a lower incidence of lag screw loosening on follow-up radiographs. However, for cases with a longer duration from trauma to surgical repair, one should be prepared to convert to an open approach if a closed approach is not amenable to adequate reduction and lag screw placement.

Keywords

sacroiliac fracture-luxation - fluoroscopic-guided closed reduction - lag screw fixation - dog - cat

Note

This manuscript is dedicated to the memory of Dr. Christina Chesvick, whose collaboration and impact on the veterinary field will be greatly missed.


Author Contribution

All author s contributed to conception of study, study design, acquisition of data and data analysis and interpretation. A. Rollins, R. Balfour and D. Szabo drafted, revised and approved the submitted manuscript.


† Dr. Chesvick passed away while this manuscript was being drafted.


Supplementary Material

 

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