Spatial Subchondral Bone Density Reflecting Joint Loading of the Talus in Different Canidae

Objective Subchondral bone density distribution can be used to study joint biomechanics non-invasively. Differences in joint loading between related species can aid in the understanding of joint loading and the development of certain types of orthopaedic pathology. This study was conducted to evaluate density distribution in the subchondral bone of the talus of different Canidae species, as a parameter reflecting the long-term joint loading in the tarsocrural joint. Materials and Methods The tarsal joints of cadaveric dogs of different breeds were included, that is, German Shepherd (n = 5), Bouvier des Flandres (n = 3) and Labrador Retriever (n = 6).Additionally, golden jackals (n = 5) (Canis aureus) and wolves (n = 5) (Canis lupus) were included. Consecutive computed tomography slices were made and the subchondral bone density distribution was evaluated using computer tomographic osteoabsorptiometry. Different breeds and species were visually compared. Results Differences were found in the subchondral bone density distribution of the talus between breeds and between species (Canis familiaris, Canis lupus and Canis aureus). Discussion and Conclusion Based on the density distribution, there are differences in loading conditions of the tarsocrural joint in different species of Canidae. The joint loading distribution is very similar between dogs of the same breed and within the same species. Although between-breed differences can be explained by conformational differences, the between-species differences remain subject to further research.

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Long-term effects of tibial plateau leveling osteotomy and tibial tuberosity advancement on tibial plateau subchondral bone density in dogs

Veterinary Surgery ◽

10.1111/vsu.12790 ◽

2018 ◽

Vol 47 (4) ◽

pp. 566-571 ◽

Cited By ~ 2

Author(s):

Elizabeth S. Leach ◽

Ursula Krotscheck ◽

Kelsey J. Goode ◽

Galina M. Hayes ◽

Peter Böttcher

Keyword(s):

Bone Density ◽

Subchondral Bone ◽

Tibial Plateau ◽

Tibial Tuberosity ◽

Long Term Effects ◽

Subchondral Bone Density

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Long-term Stress Distribution Patterns Across the Ankle Joint in Soccer Players: A Computed Tomography Osteoabsorptiometry Study

Orthopaedic Journal of Sports Medicine ◽

10.1177/2325967120963085 ◽

2020 ◽

Vol 8 (11) ◽

pp. 232596712096308

Author(s):

Junki Shiota ◽

Daisuke Momma ◽

Takayoshi Yamaguchi ◽

Norimasa Iwasaki

Keyword(s):

Bone Density ◽

Stress Distribution ◽

Ankle Joint ◽

Subchondral Bone ◽

Articular Surface ◽

Distribution Patterns ◽

High Density ◽

Soccer Players ◽

Subchondral Bone Density

Background: The distribution pattern of subchondral bone density is considered to accurately reflect the stress distribution over a joint under long-term physiologic loading. The biomechanical characteristics of the surface of the ankle joint in soccer players can be determined by measuring this distribution pattern under long-term loading. Purpose: To evaluate the distribution of subchondral bone density across the ankle joint in soccer players and to determine the effects of soccer activities, including kicking motion, on the ankle joint surface under long-term loading conditions by computed tomography (CT) osteoabsorptiometry (CTOAM). Study Design: Cross-sectional study; Level of evidence, 3. Methods: CT imaging data were obtained from both ankles of 10 soccer players (soccer group) and 10 nonathletic volunteers (control group). The distribution patterns of subchondral bone density across the articular surface of the ankle joints were assessed by CTOAM. Quantitative analysis was performed of the locations and percentages of high-density areas on the articular surface. Results: Stress distribution patterns over the ankle joint differed between the soccer players and controls. In the soccer players, the high-density areas were found in the anterior part of the distal tibia and proximal talus as well as the distal fibula. The percentages of high-density areas were greater in the soccer players compared with controls ( P < .0001). Conclusion: Stress distribution over the articular surface of the ankle joint was affected by soccer activities. A high stress concentration was seen in soccer players in the anterior part of the tibia and talus and in the fibula; such excessive stress may lead to anterior impingement.

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