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Radiographic Assessment of the Hind Limb Bone Development in Maned Wolves (Chrysocyon brachyurus).
Raphael A B Gonçalves1, Sheila C Rahal1, Jeana P Silva1
1Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
Anatomia, Histologia, Embryologia
|November 25, 2024
Summary
This study analyzed hind limb growth plate fusion in maned wolves (Chrysocyon brachyurus) via radiographs. Key growth plate closure times and ossification center development were identified, aiding in understanding species-specific skeletal maturation.
Area of Science:
- Veterinary Radiology
- Comparative Anatomy
- Canid Biology
Background:
- Understanding skeletal development is crucial for veterinary care and conservation of wild canids.
- Maned wolves (Chrysocyon brachyurus) have unique anatomical features, necessitating species-specific data on growth.
- Radiographic assessment of growth plates and ossification centers provides vital insights into skeletal maturation.
Purpose of the Study:
- To document the timing of growth plate fusion in the hind limbs of maned wolves.
- To analyze the development and changes in secondary ossification centers of the hind limbs.
- To establish a radiographic reference for skeletal development in juvenile maned wolves.
Main Methods:
- Radiographic imaging of hind limbs from three maned wolves aged 3-4 months to 18-19 months.
- Monthly and bi-monthly radiographic views (mediolateral and craniocaudal) were taken.
- Growth plate closure times and ossification center areas were systematically recorded.
Main Results:
- Specific closure times were determined for multiple hind limb growth plates, including the proximal femur (13-15 months) and proximal tibia (17-19 months).
- Significant differences in the areas of secondary ossification centers were observed between initial assessments and later stages (e.g., 6-8 months).
- The calcaneal tuber showed early closure around 8-9 months.
Conclusions:
- The study provides the first detailed radiographic data on hind limb skeletal maturation in maned wolves.
- These findings contribute to the understanding of normal growth patterns in Chrysocyon brachyurus.
- This information can serve as a reference for future research and clinical applications in maned wolves.
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