Sciatic nerve injury model in rabbits: What to expect.

Area of Science:

• Biomedical research
• Animal models
• Surgical innovation

Background:

• Rabbits are frequently utilized in preclinical studies for sciatic nerve injuries exceeding 1.5 cm.
• Existing research highlights the need to evaluate the risks and benefits of using rabbit models in this context.

Purpose of the Study:

• To analyze postoperative complication rates in rabbits undergoing sciatic nerve injury models.
• To identify common and severe complications and their impact on experimental outcomes and costs.
• To propose interventions for mitigating risks if rabbit models are necessary.

Main Methods:

• Retrospective analysis of 56 rabbits subjected to a 40 mm sciatic nerve injury.
• Examination of postoperative complication rates, focusing on autophagy and pressure ulcers.

Main Results:

• Autophagy of phalanges and plantar pressure ulcers were identified as the most frequent and serious complications.
• These complications necessitated euthanasia in 23.2% of rabbits, rendering them unusable for data collection.
• An additional cost of $25,038.44 was incurred due to these experimental failures.

Conclusions:

• The high complication rate and associated costs suggest that alternative animal models should be considered for sciatic nerve injury research.
• If rabbits must be used, implementing a specific treatment protocol to prevent autophagy and pressure ulcers is recommended.