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Friker, Jutta; Maierl, Johann; Liebich, Hans-Georg (2000): Untersuchung zur Kommunikation zwischen dem distalen Intertarsal- und dem Tarsometatarsalgelenk am Sprunggelenk des Pferdes. In: Pferdeheilkunde, Vol. 16, No. 4: pp. 352-358
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Abstract

The communication between the distal intertarsal and the tarsometatarsalarticulation was investigated using 44 hindlegs of 37 horses. 34preparations were used immediately after euthanasia while 10 specimenswere stored at -20 degrees C until investigation. Substances withdifferent viscosity were injected post-mortem into the distalintertarsal or the tarsometatarsal joint. The injected materials wereTensolzement(R), gelatine, indian ink, bariumsulphate as well as iodinecontrast medium and air.Some of the tarsi were kept in a cooling plant for 24 hours to cure theinjected material and afterwards macerated (Tensolzement(R)). The otherpreparations were frozen (gelatine, indian ink) at -20 degrees C. Thefrozen ta rsi were evaluated after paramedian section near the axial plane of the tarsal joint. Specimens with x-ray-contrast-medium weretransilluminated (bariumsulphate) or scanned with CT respectively(iodine contrast medium and air).A communication between the distal intertarsal and the tarsometatarsaljoint could be proven in every single case (100%) with indian ink anddiluted iodine contrast medium. By means of gelatine-injection afrequency of 91% was established. The injection of dilutedbariumsulphate contrast medium showed a communication between the distaljoints of the hock in 60% of all cases. The rate dropped to 28% whenTensolzement(R) was injected.The canalis tarsi and the gap between the ossa tarsalia primum etsecundum and tertium were identified as lines of communication. Neitherthe volume of injected material nor the pressure applied seems to be ofsignificance. The fact that preparations have been used immediately postmortem or have been stored frozen did not have a positive or negativeinfluence.Since it cannot be assumed for sure that the injected material,especially after application of liquids with high viscosity, willdistribute equally in both joints investigated. Single injections ofboth articulations are still necessary for a secure diagnosis ortherapy.