Morphologic evaluation of rotated tibiotarsal bones in immature ostriches (Struthio camelus)

Gayle Hahulski, Denis J Marcellin-Little, Michael K. Stoskopf

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The presence of potential morphologic anomalies associated with tibiotarsal rotation was determined in 10 ostrich chicks. Seven of the 10 chicks displayed various degrees of unilateral tibiotarsal rotation, whereas 3 were unaffected. Pelvic limb musculature and joint anatomy were similar between affected and control limbs. External rotation of clinically affected tibiotarsal bones (n = 7) ranged between 25 and 75° (median, 53°), whereas that of clinically normal bones (n = 13) ranged between 0 and 17° (median, 8°). The tibiotarsal nutrient foramen, in the midshaft, was more caudal in clinically affected limbs than in normal limbs (P = .002) and its displacement was correlated with the amount of tibiotarsal rotation (P < .001, r = .709). The distal aspect of the nutrient foramen was more craniad in clinically affected limbs than in normal limbs (P = .01). The cortical thickness and diaphyseal trabecular patterns of affected and control tibiotarsi were identical. The distal tibiotarsal physis of all birds had an atypical conformation, with transverse and longitudinal portions. Abnormal growth of the longitudinal portion of that physis might contribute to the development of tibiotarsal rotation. However, the caudal displacement of the nutrient foramen suggests that the deformity originates in the proximal portion of the bone.

Original languageEnglish (US)
Pages (from-to)252-260
Number of pages9
JournalJournal of Avian Medicine and Surgery
Volume13
Issue number4
StatePublished - Dec 1 1999
Externally publishedYes

Fingerprint

Struthioniformes
ostriches
limbs (animal)
Extremities
immatures
bones
Bone and Bones
Food
nutrients
chicks
Birds
Struthio camelus
Anatomy
Joints
birds
Growth

Keywords

  • Anatomy
  • Ostrich
  • Ratite
  • Rotational deformity
  • Struthio camelus
  • Tibiotarsal bone

ASJC Scopus subject areas

  • Medicine(all)
  • Small Animals

Cite this

Morphologic evaluation of rotated tibiotarsal bones in immature ostriches (Struthio camelus). / Hahulski, Gayle; Marcellin-Little, Denis J; Stoskopf, Michael K.

In: Journal of Avian Medicine and Surgery, Vol. 13, No. 4, 01.12.1999, p. 252-260.

Research output: Contribution to journalArticle

@article{7588f5e1d9484da293a235647c564645,
title = "Morphologic evaluation of rotated tibiotarsal bones in immature ostriches (Struthio camelus)",
abstract = "The presence of potential morphologic anomalies associated with tibiotarsal rotation was determined in 10 ostrich chicks. Seven of the 10 chicks displayed various degrees of unilateral tibiotarsal rotation, whereas 3 were unaffected. Pelvic limb musculature and joint anatomy were similar between affected and control limbs. External rotation of clinically affected tibiotarsal bones (n = 7) ranged between 25 and 75° (median, 53°), whereas that of clinically normal bones (n = 13) ranged between 0 and 17° (median, 8°). The tibiotarsal nutrient foramen, in the midshaft, was more caudal in clinically affected limbs than in normal limbs (P = .002) and its displacement was correlated with the amount of tibiotarsal rotation (P < .001, r = .709). The distal aspect of the nutrient foramen was more craniad in clinically affected limbs than in normal limbs (P = .01). The cortical thickness and diaphyseal trabecular patterns of affected and control tibiotarsi were identical. The distal tibiotarsal physis of all birds had an atypical conformation, with transverse and longitudinal portions. Abnormal growth of the longitudinal portion of that physis might contribute to the development of tibiotarsal rotation. However, the caudal displacement of the nutrient foramen suggests that the deformity originates in the proximal portion of the bone.",
keywords = "Anatomy, Ostrich, Ratite, Rotational deformity, Struthio camelus, Tibiotarsal bone",
author = "Gayle Hahulski and Marcellin-Little, {Denis J} and Stoskopf, {Michael K.}",
year = "1999",
month = "12",
day = "1",
language = "English (US)",
volume = "13",
pages = "252--260",
journal = "Journal of Avian Medicine and Surgery",
issn = "1082-6742",
publisher = "Association of Avian Veterinarians",
number = "4",

}

TY - JOUR

T1 - Morphologic evaluation of rotated tibiotarsal bones in immature ostriches (Struthio camelus)

AU - Hahulski, Gayle

AU - Marcellin-Little, Denis J

AU - Stoskopf, Michael K.

PY - 1999/12/1

Y1 - 1999/12/1

N2 - The presence of potential morphologic anomalies associated with tibiotarsal rotation was determined in 10 ostrich chicks. Seven of the 10 chicks displayed various degrees of unilateral tibiotarsal rotation, whereas 3 were unaffected. Pelvic limb musculature and joint anatomy were similar between affected and control limbs. External rotation of clinically affected tibiotarsal bones (n = 7) ranged between 25 and 75° (median, 53°), whereas that of clinically normal bones (n = 13) ranged between 0 and 17° (median, 8°). The tibiotarsal nutrient foramen, in the midshaft, was more caudal in clinically affected limbs than in normal limbs (P = .002) and its displacement was correlated with the amount of tibiotarsal rotation (P < .001, r = .709). The distal aspect of the nutrient foramen was more craniad in clinically affected limbs than in normal limbs (P = .01). The cortical thickness and diaphyseal trabecular patterns of affected and control tibiotarsi were identical. The distal tibiotarsal physis of all birds had an atypical conformation, with transverse and longitudinal portions. Abnormal growth of the longitudinal portion of that physis might contribute to the development of tibiotarsal rotation. However, the caudal displacement of the nutrient foramen suggests that the deformity originates in the proximal portion of the bone.

AB - The presence of potential morphologic anomalies associated with tibiotarsal rotation was determined in 10 ostrich chicks. Seven of the 10 chicks displayed various degrees of unilateral tibiotarsal rotation, whereas 3 were unaffected. Pelvic limb musculature and joint anatomy were similar between affected and control limbs. External rotation of clinically affected tibiotarsal bones (n = 7) ranged between 25 and 75° (median, 53°), whereas that of clinically normal bones (n = 13) ranged between 0 and 17° (median, 8°). The tibiotarsal nutrient foramen, in the midshaft, was more caudal in clinically affected limbs than in normal limbs (P = .002) and its displacement was correlated with the amount of tibiotarsal rotation (P < .001, r = .709). The distal aspect of the nutrient foramen was more craniad in clinically affected limbs than in normal limbs (P = .01). The cortical thickness and diaphyseal trabecular patterns of affected and control tibiotarsi were identical. The distal tibiotarsal physis of all birds had an atypical conformation, with transverse and longitudinal portions. Abnormal growth of the longitudinal portion of that physis might contribute to the development of tibiotarsal rotation. However, the caudal displacement of the nutrient foramen suggests that the deformity originates in the proximal portion of the bone.

KW - Anatomy

KW - Ostrich

KW - Ratite

KW - Rotational deformity

KW - Struthio camelus

KW - Tibiotarsal bone

UR - http://www.scopus.com/inward/record.url?scp=18444404668&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18444404668&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:18444404668

VL - 13

SP - 252

EP - 260

JO - Journal of Avian Medicine and Surgery

JF - Journal of Avian Medicine and Surgery

SN - 1082-6742

IS - 4

ER -