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Background <p>Feline carpal joint injuries pose a significant clinical challenge due to their complex anatomy and the limited evidence available to guide treatment decisions. A detailed understanding of the osseous microarchitecture is essential for improving surgical planning and therapeutic outcomes. A total of 80 carpal joints from 20 cats and 20 toy breed dogs were examined and compared using microcomputed tomography. The parameters bone volume (BV/TV), bone surface (BS/BV), trabecular thickness (Tb.Th), number of trabeculae (Tb.N), trabecular spacing (Tb.Sp), degree of anisotropy (DA) and connectivity density (Conn. D) were measured and compared. To classify the cortical structure, a three-staged scoring system was applied.</p> Results <p>All carpal bones exhibited a cancellous structure. Overall, cats had fewer but thicker trabeculae than the toy-dogs in the analysed areas of the carpus, which resulted in a greater trabecular distance in cats. Cats also had a higher bone volume (BV/TV) and thicker cortex.</p> Conclusions <p>There were significant differences in structure between dogs and cats which may be important when assessing carpal bone injuries.</p>

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Microcomputed tomographic comparison of the bony structure of the canine and feline carpus

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月15日

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  • Leo Goldstein,
  • Anja-Christina Waselau,
  • Yury Zablotski,
  • Andrea Meyer-Lindenberg

摘要

Background

Feline carpal joint injuries pose a significant clinical challenge due to their complex anatomy and the limited evidence available to guide treatment decisions. A detailed understanding of the osseous microarchitecture is essential for improving surgical planning and therapeutic outcomes. A total of 80 carpal joints from 20 cats and 20 toy breed dogs were examined and compared using microcomputed tomography. The parameters bone volume (BV/TV), bone surface (BS/BV), trabecular thickness (Tb.Th), number of trabeculae (Tb.N), trabecular spacing (Tb.Sp), degree of anisotropy (DA) and connectivity density (Conn. D) were measured and compared. To classify the cortical structure, a three-staged scoring system was applied.

Results

All carpal bones exhibited a cancellous structure. Overall, cats had fewer but thicker trabeculae than the toy-dogs in the analysed areas of the carpus, which resulted in a greater trabecular distance in cats. Cats also had a higher bone volume (BV/TV) and thicker cortex.

Conclusions

There were significant differences in structure between dogs and cats which may be important when assessing carpal bone injuries.