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Vet Comp Orthop Traumatol 1989; 02(03): 125-128
DOI: 10.1055/s-0038-1633209
Short Communication
Schattauer GmbH

Secondary Fractures Following Internal Fixation in Two Horses

E. M. Gaughan
1   From the Large Animal Clinic, New York State College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
,
N. G. Duchar
1   From the Large Animal Clinic, New York State College of Veterinary Medicine, Cornell University, Ithaca, New York, USA
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Publikationsdatum:
09. Februar 2018 (online)

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Summary

Implant associated fractures have not been reported in horses. Two horses were evaluated for fractures in the fore limbs, occurring subsequent to previous fracture repair. Previously, the horses had sustained fractures of unusual configurations which were repaired using internal fixation. Following repair and healing of the fractures, secondary fractures occurred in the same bone, but in a different (more common) configuration. The first horse was evaluated ten months following lag screw fixation of a longitudinal fracture of the proximal phalanx in a frontal plane. This horse presented with a more typical comminuted fracture in the sagittal plane with the screws from the first fixation lying in the fracture line. This fracture was successfully treated with a cast. The second horse was examined eightteen months after repair of a medial sagittal slab fracture of the third carpal bone. The horse presented with a more typical dorsal slab fracture of the third carpal bone with the previously placed lag screw lying in the fracture line. The screw was removed and a lag screw was placed perpendicular to the new fracture plane through the dorsal surface of the third carpal bone to repair the fracture.

Key words

Secondary fracture - Internal fixation - Horse
 

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