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Spinal anaesthesia for caesarean section after Harrington instrumentation
1Department of Anesthesia, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115.
Summary
Spinal anesthesia for Cesarean delivery in patients with spinal fusion can be challenging. Performing the procedure at the L5-S1 interspace may offer a more reliable and technically easier option.
Area of Science:
- Anesthesiology
- Neurosurgery
- Obstetrics
Background:
- Spinal fusion surgery, such as Harrington fusion, alters spinal anatomy.
- Cesarean delivery often requires regional anesthesia, like spinal anesthesia.
- Previous spinal surgery can complicate anesthesia procedures.
Observation:
- A 33-year-old parturient with a history of Harrington spinal fusion required spinal anesthesia for Cesarean delivery.
- Multiple attempts at needle insertion at the L3-L4 interspace (midline and paramedian) were unsuccessful.
- Successful spinal anesthesia was ultimately achieved at the L5-S1 interspace using a midline approach.
Findings:
- Anatomical changes following Harrington fusion can present significant challenges for neuraxial anesthesia.
- The L3-L4 interspace may become difficult to access or identify accurately after spinal fusion.
- The L5-S1 interspace provided a feasible and effective site for spinal anesthesia in this case.
Implications:
- Anesthesiologists should consider alternative interspaces, like L5-S1, for spinal anesthesia in patients with spinal fusion.
- Careful anatomical assessment is crucial to overcome technical difficulties in administering anesthesia post-spinal fusion.
- This case highlights the importance of adapting anesthetic techniques to individual patient anatomy, especially after spinal reconstructive surgery.