Displasia hipotalángica en perros y gatos: signos radiológicos y evaluación, Apuntes de Veterinaria

¡Descarga Displasia hipotalángica en perros y gatos: signos radiológicos y evaluación y más Apuntes en PDF de Veterinaria solo en Docsity! Diagnòstic per imatge Marta Vila Garcia 4t VET-CPA Hip dysplasia (CHD) A disconformity of the head of the femur (FH) and the acetabulum  excessive movement of the FH  damage, inflammation, weakness of hip joint.  Genetic (polygenic) trait affected by environmental factors (e.g. obesity).  No té perquè sempre ser clínica.  Particularly the larger breeds. Also in cats and small breeds. o Dog: German shepherd, Retriever... o Cat: Maine Coon, Siamese...  No sexual predisposition.  Normally bilateral.  Diagnostic: 6-8 months.  Shoulder, knee and intervertebral joints often show similar changes → is HD a conspicuous manifestation of a systemic disease? No és exclusiu de l’articulació coxo-femoral (genoll), també pot ser escàpulo-humeral (escàpula)  Decreased activity.  Joint pain.  Unsteady git.  Hind legs drawn forward, placing (ore weight on the fore limbs).  Running with both hind legs moving together (“bunny hopping”).  Difficulty for rising from a sitting or lying position.  Stairs are difficult to climb.  Running and intense activity aggravate the condition and can reveal signs in an animal previously thought to be healthy. RX: A PRECISION POSITION IS NEEDED  Supine decubitus (VD projection)  Max. extension of both coxo-femoral articulations.  Parallel femora, stifles rotated inwards.  General anaesthesia or deep sedation. Normal hip Hip dysplasia Diagnòstic per imatge Marta Vila Garcia 4t VET-CPA ROENTGEN SIGNS  Osteophytes along articular cartilage (  )  Thickening of femoral neck and loss of sphericity of femoral head (FH)  Flattening (aplastament) of acetabulum (  ). ( porció articular còncava de la superfície de la pelvis, formada per l’ílium, l’ísquium i el pubis, a la qual s’hi articula el cap del fèmur, donant lloc a l’articulació de la cintura).  Subchondral sclerosis of FH & acetabulum.  Morgan lines (a quite precocious sign): entesiophytes (enduriments) that predict laxity of articular capsule. Use PennHip technique.  Characteristic change may not be detected until animals are 2 years old. It consists of separate radiographs: the distraction view, the compression view and the hip-extended view.