Are distal border fragments of the navicular bone of clinical significance?
نویسندگان
چکیده
Fragments of the distal border of the navicular bone are identified radiologically with low frequency in horses free from lameness. There is higher frequency of occurrence in horses with foot pain, especially navicular disease. The clinical significance of a fragment per se is controversial. There is limited knowledge about the progression of the lesion and/or lameness. The pathogenesis of fragments is not completely clarified; avulsion fracture or pathological fracture of the navicular bone, fracture of an entheseophyte at the origin of the distal sesamoidean impar ligament (DSIL), or dystrophic mineralisation within the DSIL have been proposed.
منابع مشابه
Navicular disease...remembrance of things past
Over the past few decades, the development of magnetic resonance imaging (MRI) for the diagnosis of equine lameness has revolutionized our understanding of what used to be termed ‘navicular disease’. Prior to MRI, navicular disease was diagnosed primarily by a positive response to palmar digital nerve blocks (PDNB) and identification of characteristic radiological findings; particularly changes...
متن کاملNavicular disease...remembrance of things past
Over the past few decades, the development of magnetic resonance imaging (MRI) for the diagnosis of equine lameness has revolutionized our understanding of what used to be termed ‘navicular disease’. Prior to MRI, navicular disease was diagnosed primarily by a positive response to palmar digital nerve blocks (PDNB) and identification of characteristic radiological findings; particularly changes...
متن کاملNavicular disease...remembrance of things past.
Over the past few decades, the development of magnetic resonance imaging (MRI) for the diagnosis of equine lameness has revolutionized our understanding of what used to be termed ‘navicular disease’. Prior to MRI, navicular disease was diagnosed primarily by a positive response to palmar digital nerve blocks (PDNB) and identification of characteristic radiological findings; particularly changes...
متن کاملEffect of contact stress in bones of the distal interphalangeal joint on microscopic changes in articular cartilage and ligaments.
OBJECTIVE To examine articular cartilage of the distal interphalangeal (DIP) joint and distal sesamoidean impar ligament (DSIL) as well as the deep digital flexor tendon (DDFT) for adaptive responses to contact stress. SAMPLE POPULATION Specimens from 21 horses. PROCEDURE Pressure-sensitive film was inserted between articular surfaces of the DIP joint. The digit was subjected to a load. Fin...
متن کاملRadiographic comparison of five different techniques for injection into the distal sesamoid bursa in cattle
Numerous techniques for injection into the distal sesamoid bursa (navicular bursa) have been described, especially in equine, but there are few specific descriptions regarding this practice being done in cattle. Five different techniques were compared for injection into the distal sesamoid bursa in cattle including distal plantar approach parallel with the coronary band, proximal plantar approa...
متن کامل