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Kaiser, A.; Böttcher, Peter; Maierl, Johann (2007): Die subchondrale Knochendichteverteilung im Karpalgelenk des Hundes. In: Tierärztliche Praxis / K, Kleintiere, Vol. 35, No. 4: pp. 261-266
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Abstract

Objective: The objective of this study was to determine the subchondralbone density in the canine carpal joint in order to understand thelong-term loading situation of the joint. Material and methods: 80joints of 40 dogs of varying age were examined by means of computedtomography osteoabsorptiometry. Results: The subchondral bone densityincreases with increasing age. However, the bone density distributionpatterns stay the same. In the antebrachiocarpal joint, the joint withthe highest range of motion, areas with high bone density are founddorsomedially. In both the midcarpal and carpornetacarpal jointthey aremore equally distributed over the joint surfaces. No differences werefound between dogs of different sex nor between left and right joints ofone individual. Conclusion: Characteristic load distribution patterns inthe canine carpal joint occur due to the physiologic hyperextension andcarpus-valgus-position of the joint together with the limitated range ofmotion in the distal joints. Clinical relevance: High loading situationsof distinct areas of the joint surfaces are one possible cause oftypical injuries in the canine carpal joint.