Related Experiment Video
Updated: Oct 11, 2025

10:57
Intramuscular Injections Along the Motor End Plates: A Minimally Invasive Approach to Shuttle Tracers Directly into Motor Neurons
Published on: July 13, 2015
12.8K
Anatomic barriers to paraspinal blocks: a cadaver case series
Sandeep Diwan1, Xavier Sala-Blanch2, Abhijit Nair3
1Sancheti Hospital, Department of Anesthesiology, Pune, India.
Brazilian Journal of Anesthesiology (Elsevier)
|December 1, 2021
Summary
This study clarifies needle tip placement in the paraspinal space using cadaver models. It proposes a new anatomical classification to resolve uncertainties in precise needle positioning for procedures.
Area of Science:
- Anatomy
- Medical Procedures
- Surgical Navigation
Background:
- The paraspinal space presents complex anatomical challenges for accurate needle placement.
- Existing descriptions of needle tip positions lack clarity, leading to procedural uncertainty.
Observation:
- Cadaver models were utilized for detailed anatomical study.
- Open dissections were performed on paraspinal regions.
- Cross-sectional and sagittal views were analyzed.
Findings:
- Specific anatomical spaces and barriers within the paraspinal region were identified.
- A novel anatomical classification system for paraspinal needle placement was developed.
- The study resolves ambiguities concerning precise needle tip positioning.
Implications:
- This classification can improve the safety and efficacy of procedures involving the paraspinal space.
- Enhanced anatomical understanding aids in training and practice.
- Potential to reduce complications associated with inaccurate needle placement.

