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Published on: October 9, 2014
Evaluation of two dynamic axial fixators for large ruminants
Gaj Raj Singh1, Hari Prasad Aithal, Amarpal
1Division of Surgery, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India.
Veterinary Surgery : VS
|January 12, 2007
Summary
Dynamic axial fixation devices (DAF) were evaluated for radial osteotomies in large ruminants. Model II DAF provided superior fixation and facilitated faster healing compared to Model I.
Area of Science:
- Veterinary Orthopedics
- Large Animal Surgery
- Biomechanical Engineering
Background:
- Radial osteotomies are common in large ruminants, requiring stable fixation for effective healing.
- Dynamic axial fixation (DAF) devices offer a potential solution for managing long bone fractures in these animals.
Purpose of the Study:
- To compare the efficacy of two different DAF models in repairing radial osteotomies in large ruminants.
- To evaluate bone healing, stability, and functional recovery following DAF application.
Main Methods:
- An in vivo study involving eight bull calves with surgically created radial osteotomies.
- Application of two distinct DAF models (Model I and Model II) to repair the osteotomies.
- Monitoring of weight bearing, fixation stability, and radiographic evidence of healing for six months.
Main Results:
- Both DAF models were well-tolerated, allowing free movement of adjacent joints.
- Model II DAF demonstrated superior fixation stability, leading to earlier full weight bearing and fracture healing with reduced callus formation.
- Functional recovery was achieved within 60 days in surviving animals.
Conclusions:
- Model II DAF provided better fixation stability and facilitated more efficient bone healing in radial osteotomies.
- The Model II DAF is an economical and potentially valuable option for treating long bone fractures in large ruminants.
