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Related Experiment Video

Updated: Jun 14, 2026

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri

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Published on: September 12, 2025

Continuous cervical paravertebral catheter knot.

Steven C Pulley¹, Christina M Spofford, Timothy J Brennan

¹Department of Anesthesia, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA. christina-spofford@uiowa.edu

Journal of Clinical Anesthesia

|March 23, 2010

Summary

This summary is machine-generated.

A knotted posterior cervical paravertebral catheter used for shoulder surgery pain control was successfully removed after imaging confirmed no nerve or vascular entanglement. This case highlights a rare complication and its resolution in regional anesthesia.

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Area of Science:

Anesthesiology
Orthopedic Surgery
Pain Management

Background:

Posterior cervical paravertebral catheters offer effective regional anesthesia for shoulder procedures.
Postoperative pain management is crucial for patient recovery after rotator cuff repair.

Observation:

A 67-year-old woman received a posterior cervical paravertebral catheter for pain control after left rotator cuff repair and subacromial decompression.
During catheter removal, significant resistance was met, indicating a knot formation.
Imaging revealed no neural or vascular structure entanglement with the knotted catheter.

Findings:

The knotted catheter was successfully retrieved using a small skin incision.
No adverse neurological or vascular events occurred during or after the removal procedure.

Implications:

This case demonstrates a rare complication of catheter knotting during regional anesthesia.
Successful management of knotted catheters is possible with appropriate imaging and surgical technique.
Awareness of this complication is important for anesthesiologists and surgeons managing regional anesthesia catheters.