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Clavipectoral fascia plane block spread: an anatomical study
Hipolito Labandeyra1, Cristina Heredia-Carques2, José Cros Campoy3
1Human Anatomy and Embryology Unit, Universitat de Barcelona Facultat de Medicina i Ciències de la Salut, Barcelona, Catalunya, Spain.
Regional Anesthesia and Pain Medicine
|September 12, 2023
Summary
The clavipectoral fascia plane block (CPB) effectively targets superficial nerves and muscles for clavicle fractures. However, it does not reach deep muscles or the posteroinferior periosteum.
Area of Science:
- Anesthesiology
- Anatomy
- Pain Management
Background:
- The clavipectoral fascia plane block (CPB) is a new anesthetic approach for clavicle fractures.
- Understanding the spread of injected solutions is crucial for optimizing this technique.
Purpose of the Study:
- To investigate the distribution of injected solution in the clavipectoral fascia plane block (CPB).
- To map the spread around the clavicle and adjacent tissues.
Main Methods:
- Cadaveric dissection of 12 clavicle samples.
- Injection of methylene blue and contrast agent.
- Assessment of spread via dissection and CT scans.
Main Results:
- Methylene blue stained supraclavicular nerves and superficial muscles (deltoid, trapezius, sternocleidomastoid, pectoralis major).
- No staining observed in deep muscles (subclavius, pectoralis minor) or clavipectoral fascia (CPF).
- Anterosuperior periosteum stained in 54% of samples; posteroinferior periosteum in 4%.
Conclusions:
- CPB effectively distributes solution to anterosuperior periosteum, superficial muscles, and nerves.
- CPB does not reach the posteroinferior periosteum or deep muscular plane, including the CPF.
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