Neck flexion to 60° maximizes cisternal subarachnoid space for cerebrospinal fluid collection in dogs

Key Points

• To determine the optimal neck flexion angle for maximizing the cisternal subarachnoid space and ensuring safe cerebrospinal fluid collection in dogs.
• Comparison of 60° and 90° neck flexion for cerebrospinal fluid collection
• Assessment of subarachnoid space visualization
• Evaluation of associated risks during procedures
• 60° neck flexion was found to maximize the cisternal subarachnoid space
• 90° flexion provided no additional benefit
• Flexing beyond 60° may increase risks to patient safety