Radiographic evaluation of perching-joint angles in cockatiels (Nymphicus hollandicus), Hispaniolan Amazon parrots (Amazona ventralis), and barred owls (Strix varia)

Glen Bonin; Susanne K Lauer; David Sanchez-Migallon Guzman; Javier Nevarez; Thomas N Tully, Jr; Giselle Hosgood; Lorrie Gaschen

doi:10.1647/2008-028.1

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Radiographic evaluation of perching-joint angles in cockatiels (Nymphicus hollandicus), Hispaniolan Amazon parrots (Amazona ventralis), and barred owls (Strix varia)

Journal article

Peer reviewed

Radiographic evaluation of perching-joint angles in cockatiels (Nymphicus hollandicus), Hispaniolan Amazon parrots (Amazona ventralis), and barred owls (Strix varia)

Glen Bonin, Susanne K Lauer, David Sanchez-Migallon Guzman, Javier Nevarez, Thomas N Tully, Jr, Giselle Hosgood and Lorrie Gaschen

Journal of avian medicine and surgery, Vol.23(2), pp.91-100

2009

DOI: https://doi.org/10.1647/2008-028.1

PMID: 19673455

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Abstract

Information on perching-joint angles in birds is limited. Joint immobilization in a physiologic perching angle has the potential to result more often in complete restoration of limb function. We evaluated perching-joint angles in 10 healthy cockatiels (Nymphicus hollandicus), 10 Hispaniolan Amazons (Amazona ventralis), and 9 barred owls (Strix varia) and determined intra- and interobserver variability for goniometric measurements in 2 different radiographic projections. Intra- and interobserver variation was less than 7% for all stifle and intertarsal joint measurements but frequently exceeded 10% for the hip-joint measurements. Hip, stifle, and intertarsal perching angles differed significantly among cockatiels, Hispaniolan Amazon parrots, and barred owls. The accuracy of measurements performed on straight lateral radiographic projections with superimposed limbs was not consistently superior to measurements on oblique projections with a slightly rotated pelvis. Stifle and intertarsal joint angles can be measured on radiographs by different observers with acceptable variability, but intra- and interobserver variability for hip-joint–angle measurements is higher.

Details

Title: Radiographic evaluation of perching-joint angles in cockatiels (Nymphicus hollandicus), Hispaniolan Amazon parrots (Amazona ventralis), and barred owls (Strix varia)
Authors/Creators: Glen Bonin - Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
Susanne K Lauer - Louisiana State University
David Sanchez-Migallon Guzman - Louisiana State University
Javier Nevarez - Louisiana State University
Thomas N Tully, Jr
Giselle Hosgood - Louisiana State University
Lorrie Gaschen - Louisiana State University
Publication Details: Journal of avian medicine and surgery, Vol.23(2), pp.91-100
Identifiers: 991005592649707891
Murdoch Affiliation: School of Veterinary Medicine
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.232 Veterinary Sciences; 3.232.1715 Canine Orthopedics
Web Of Science research areas: Veterinary Sciences
ESI research areas: Plant & Animal Science