Master dissertations
Alexandra Dias Fernandes
“Análise cinemática da articulação metatarsofalângica em equinos com desmite do ligamento suspensor do boleto”
Análise cinemática articulação metatarsofalângica equinos com desmite do ligamento suspensor boleto
Provas públicas
- Universidade Lusófona
- 17 de junho de 2021
- Júri: Presidente: Profª Doutora Laurentina Pedroso (Univ. Lusófona);
- Arguente: Prof. Doutor Filipe Bragança (Univ. Utrecht);
- Orientador: Prof. Doutor João Abrantes (Univ. Lusófona)
- Classificação final: 18 v
Abstract
The suspensory desmitis is one of the most common lesions in sport horses. Some of these horses will not return to previous performance levels or will retire due to the extension of this pathology.
Beyond the pain and the lesion itself, this pathology has a high importance considering the suspensory ligament function as support of the metacarpophalangeal/metatarsophalangeal joint.
The aim of this study was to analyse objectively the alterations in the suspensory apparatus of horses with and without suspensory desmitis through angular kinematic analysis. For this purpose, twenty-two horses were filmed, in walk and trot, with markers on the hind limbs. Five of these horses had suspensory desmitis and seventeen had no known injury. Subsequently, the videos were analysed using the programs Kinovea, DigitizeXY and Excel.
In the study it was observed an improvement in the asymmetry index in the pathological horses after treatment/anaesthetic blocks. It was also observed lower fetlock angles in the healthy limb and higher in the suspensory demistis limb.
It was concluded that the angular kinematic analysis method used in this study is reliable and it could be applied in future studies.
Keywords
Suspensory ligament desmitis, fetlock angle, angular kinematics analysis, asymmetry index.
Maria Jorge Vaz de Barros dos Santos
“Análise angular e simetria dos ângulos definidos pela apófise sacral e tuberosidade coxal em cavalos com claudicação dos membros posteriores”
Análise angular simetria ângulos apófise sacral tuberosidade coxal cavalos claudicação m_posteriores
Provas públicas
- Universidade Lusófona
- 17 de dezembro de 2021
- Júri: Presidente: Prof. Doutora Sofia Van Harten (Univ. Lusófona);
- Arguente: Prof. Doutora Susana Monteiro (Univ. Évora);
- Orientador: Prof. Doutor João Abrantes (Univ. Lusófona);
- Classificação final :17 v
Abstract
One of the main reasons for consulting in sports medicine is lameness. Lameness is often a clinical manifestation of musculoskeletal disorders being common in sport horses. To assess a musculoskeletal problem, a locomotor exam is performed. The veterinarian begins by evaluating the movement of the horse and, by direct observation, draws conclusions, namely which limb the horse is lame and what degree of lameness it presents. The following clinical procedures will depend on each case individually.
Despite the proven experience of veterinarians in diagnosing by direct visual observation, the present work has the conceptual objective to understand how an analysis based on quantitative methodologies, within the scope of Equine Biomechanics, can contribute to finding a complementary exam that objectively supports clinical decisions.
The operational objective of the present study was the detection of asymmetries in horses that presented lameness of the hind limbs (n=11) comparing the respective kinematics data with a sample of clinically healthy control horses (n=14).
The quantitative methodology associated with angular kinematics is the instrument for measuring the displacements associated with the croup. Displacements of the right croup (left) had as measurement criterion the angle between the horizontal and the line formed between the sacral apophysis and the right coxal tuberosity (left).
In conclusion, we can verify that the method used has the ability to acquire results for kinematic analysis and to acquire satisfactory results related to the presence of asymmetries in horses that presented lameness of the hind limbs. It was possible to prove that the horses that presented lameness in the posterior limbs at trot, presented an increase in the amplitude in the limb in which it was lame. In the step, the control horses and the horses under study had similar results of asymmetries.
It is necessary to carry out more studies regarding the quantitative analysis of the hind limbs, thus trying to find methodologies that allow to reduce possible errors in the observation and subjective assessment of lameness.
Keywords
hindlimb lameness, Hip displacement, angular kinematics, equine biomechanics, symmetry of angles defined by the sacral apophysis, and coxal tuberosity in lame horses.