Torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis)

Shannon M. Kerrigan, Amy Kapatkin, Tanya C. Garcia, Duane A. Robinson, David Guzman, Susan M Stover

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

OBJECTIVE To describe the torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). SAMPLE 16 cadaveric tibiotarsal bones from 8 red-tailed hawks. PROCEDURES 1 tibiotarsal bone from each bird was randomly assigned to be tested in torsion, and the contralateral bone was tested in axial compression. Intact bones were monotonically loaded in either torsion (n = 8) or axial compression (8) to failure. Mechanical variables were derived from load-deformation curves. Fracture configurations were described. Effects of sex, limb side, and bone dimensions on mechanical properties were assessed with a mixed-model ANOVA. Correlations between equivalent torsional and compressive properties were determined. RESULTS Limb side and bone dimensions were not associated with any mechanical property. During compression tests, mean ultimate cumulative energy and postyield energy for female bones were significantly greater than those for male bones. All 8 bones developed a spiral diaphyseal fracture and a metaphyseal fissure or fracture during torsional tests. During compression tests, all bones developed a crushed metaphysis and a fissure or comminuted fracture of the diaphysis. Positive correlations were apparent between most yield and ultimate torsional and compressive properties. CONCLUSIONS AND CLINICAL RELEVANCE The torsional and axial compressive properties of tibiotarsal bones described in this study can be used as a reference for investigations into fixation methods for tibiotarsal fractures in red-tailed hawks. Although the comminuted and spiral diaphyseal fractures induced in this study were consistent with those observed in clinical practice, the metaphyseal disruption observed was not and warrants further research.

Original languageEnglish (US)
Pages (from-to)388-396
Number of pages9
JournalAmerican Journal of Veterinary Research
Volume79
Issue number4
DOIs
StatePublished - Apr 1 2018

Fingerprint

Hawks
Buteo jamaicensis
bones
Bone and Bones
Bone Fractures
limbs (animal)
mechanical properties
Extremities
Comminuted Fractures
Diaphyses
testing
energy

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). / Kerrigan, Shannon M.; Kapatkin, Amy; Garcia, Tanya C.; Robinson, Duane A.; Guzman, David; Stover, Susan M.

In: American Journal of Veterinary Research, Vol. 79, No. 4, 01.04.2018, p. 388-396.

Research output: Contribution to journalArticle

Kerrigan, Shannon M. ; Kapatkin, Amy ; Garcia, Tanya C. ; Robinson, Duane A. ; Guzman, David ; Stover, Susan M. / Torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). In: American Journal of Veterinary Research. 2018 ; Vol. 79, No. 4. pp. 388-396.
@article{69a5e10ed37249fd9b4e39ce1f65e821,
title = "Torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis)",
abstract = "OBJECTIVE To describe the torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). SAMPLE 16 cadaveric tibiotarsal bones from 8 red-tailed hawks. PROCEDURES 1 tibiotarsal bone from each bird was randomly assigned to be tested in torsion, and the contralateral bone was tested in axial compression. Intact bones were monotonically loaded in either torsion (n = 8) or axial compression (8) to failure. Mechanical variables were derived from load-deformation curves. Fracture configurations were described. Effects of sex, limb side, and bone dimensions on mechanical properties were assessed with a mixed-model ANOVA. Correlations between equivalent torsional and compressive properties were determined. RESULTS Limb side and bone dimensions were not associated with any mechanical property. During compression tests, mean ultimate cumulative energy and postyield energy for female bones were significantly greater than those for male bones. All 8 bones developed a spiral diaphyseal fracture and a metaphyseal fissure or fracture during torsional tests. During compression tests, all bones developed a crushed metaphysis and a fissure or comminuted fracture of the diaphysis. Positive correlations were apparent between most yield and ultimate torsional and compressive properties. CONCLUSIONS AND CLINICAL RELEVANCE The torsional and axial compressive properties of tibiotarsal bones described in this study can be used as a reference for investigations into fixation methods for tibiotarsal fractures in red-tailed hawks. Although the comminuted and spiral diaphyseal fractures induced in this study were consistent with those observed in clinical practice, the metaphyseal disruption observed was not and warrants further research.",
author = "Kerrigan, {Shannon M.} and Amy Kapatkin and Garcia, {Tanya C.} and Robinson, {Duane A.} and David Guzman and Stover, {Susan M}",
year = "2018",
month = "4",
day = "1",
doi = "10.2460/ajvr.79.4.388",
language = "English (US)",
volume = "79",
pages = "388--396",
journal = "American Journal of Veterinary Research",
issn = "0002-9645",
publisher = "American Veterinary Medical Association",
number = "4",

}

TY - JOUR

T1 - Torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis)

AU - Kerrigan, Shannon M.

AU - Kapatkin, Amy

AU - Garcia, Tanya C.

AU - Robinson, Duane A.

AU - Guzman, David

AU - Stover, Susan M

PY - 2018/4/1

Y1 - 2018/4/1

N2 - OBJECTIVE To describe the torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). SAMPLE 16 cadaveric tibiotarsal bones from 8 red-tailed hawks. PROCEDURES 1 tibiotarsal bone from each bird was randomly assigned to be tested in torsion, and the contralateral bone was tested in axial compression. Intact bones were monotonically loaded in either torsion (n = 8) or axial compression (8) to failure. Mechanical variables were derived from load-deformation curves. Fracture configurations were described. Effects of sex, limb side, and bone dimensions on mechanical properties were assessed with a mixed-model ANOVA. Correlations between equivalent torsional and compressive properties were determined. RESULTS Limb side and bone dimensions were not associated with any mechanical property. During compression tests, mean ultimate cumulative energy and postyield energy for female bones were significantly greater than those for male bones. All 8 bones developed a spiral diaphyseal fracture and a metaphyseal fissure or fracture during torsional tests. During compression tests, all bones developed a crushed metaphysis and a fissure or comminuted fracture of the diaphysis. Positive correlations were apparent between most yield and ultimate torsional and compressive properties. CONCLUSIONS AND CLINICAL RELEVANCE The torsional and axial compressive properties of tibiotarsal bones described in this study can be used as a reference for investigations into fixation methods for tibiotarsal fractures in red-tailed hawks. Although the comminuted and spiral diaphyseal fractures induced in this study were consistent with those observed in clinical practice, the metaphyseal disruption observed was not and warrants further research.

AB - OBJECTIVE To describe the torsional and axial compressive properties of tibiotarsal bones of red-tailed hawks (Buteo jamaicensis). SAMPLE 16 cadaveric tibiotarsal bones from 8 red-tailed hawks. PROCEDURES 1 tibiotarsal bone from each bird was randomly assigned to be tested in torsion, and the contralateral bone was tested in axial compression. Intact bones were monotonically loaded in either torsion (n = 8) or axial compression (8) to failure. Mechanical variables were derived from load-deformation curves. Fracture configurations were described. Effects of sex, limb side, and bone dimensions on mechanical properties were assessed with a mixed-model ANOVA. Correlations between equivalent torsional and compressive properties were determined. RESULTS Limb side and bone dimensions were not associated with any mechanical property. During compression tests, mean ultimate cumulative energy and postyield energy for female bones were significantly greater than those for male bones. All 8 bones developed a spiral diaphyseal fracture and a metaphyseal fissure or fracture during torsional tests. During compression tests, all bones developed a crushed metaphysis and a fissure or comminuted fracture of the diaphysis. Positive correlations were apparent between most yield and ultimate torsional and compressive properties. CONCLUSIONS AND CLINICAL RELEVANCE The torsional and axial compressive properties of tibiotarsal bones described in this study can be used as a reference for investigations into fixation methods for tibiotarsal fractures in red-tailed hawks. Although the comminuted and spiral diaphyseal fractures induced in this study were consistent with those observed in clinical practice, the metaphyseal disruption observed was not and warrants further research.

UR - http://www.scopus.com/inward/record.url?scp=85049390221&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049390221&partnerID=8YFLogxK

U2 - 10.2460/ajvr.79.4.388

DO - 10.2460/ajvr.79.4.388

M3 - Article

C2 - 29583042

AN - SCOPUS:85049390221

VL - 79

SP - 388

EP - 396

JO - American Journal of Veterinary Research

JF - American Journal of Veterinary Research

SN - 0002-9645

IS - 4

ER -