Radiographic measurement of tibial joint angles in sheep

Abstract

The aim of this study was to establish normal reference values of anatomic and mechanical joint angles of the tibia in sheep at different age groups. Eighteen clinically healthy Santa Ines sheep were used. The animals were divided into three equal groups according to age: Group I - from six- to eight-months-old, Group II - 2-years-old, Group III - from three- to five-years-old. Anatomic medial proximal and lateral distal tibial angles, mechanical proximal and distal tibial angles, and anatomic caudal proximal and anatomic cranial distal tibial angles were measured from tibiae radiographs (n = 36). In the craniocaudal view, the mean values of the anatomic medial proximal, anatomic lateral distal, mechanical medial proximal, and mechanical lateral distal tibial joint angles were 89.6 masculine, 86.6 masculine, 91.4 masculine, and 85.19 masculine respectively. In mediolateral view, the mean values of the anatomic caudal proximal and anatomic cranial distal tibial angles were 64.55 masculine and 105.69 masculine, respectively. The joint orientation angles of the tibia in sheep showed similar values regardless of animal age for both anatomic and mechanical axes.

Measurements of normal joint angles by goniometry in calves

“…Previous goniometric studies that assessed inter-observer variability and experience did not reveal any significant differences in goniometric joint measurements (2,5,10,13). In the present study, in which all measurements were performed by two independent investigators with relevant experience, the differences between investigators were generally not significant.…”

“…In the ovine model (Santa Inês sheep), goniometry may be useful for orthopaedic studies in which the range-of-motion must be evaluated in conditions such as osteoarthritis, bone deformities and their correction, prosthesis development for stifle surgery, total joint replacement, and articular ligament reconstruction (2,10).…”

Treatment of pes varus using locking plate fixation in seven Dachshund dogs

“…The ideal osteotomy location was planned through the CORA, parallel to the distal joint orientation line (DJOL) (14). The distance from the DJOL to the CORA was recorded as the theoretical osteotomy distance (OD).…”

Goniometria dos membros torácicos e pélvicos de ovinos em duas faixas etárias

“…Em virtude das restrições do uso de animais de estimação em experimentação, especialmente cães e gatos, os ovinos tem se tornado uma opção importante na área de ortopedia e traumatologia (Ehrnberg et al 1993, Teixeira et al 2007, Hette et al 2009, Meller et al 2009), requerendo assim estudos com relação à função articular. Dentre os métodos objetivos de avaliação das articulações podem ser citados a cinemática, que requer equipamentos mais complexos e analisa a geometria do movimento quanto ao deslocamento, à velocidade e à aceleração (Gillete & Angle 2008), e a goniometria, que apesar de ser uma análise estática, tem por vantagens a simplicidade e o baixo custo (Norkin e White 1997, Jaegger et al 2002, Hesbach et al 2007.…”