Related Experiment Video
Updated: Jun 14, 2026

Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri
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
The case of a 67 year-old woman who underwent left rotator cuff repair with subacromial decompression and acromioplasty with general anesthesia and a posterior cervical paravertebral catheter for postoperative pain control is presented. The catheter was placed without apparent incident and appropriate neural block and analgesia were achieved. On attempted removal of the catheter, resistance was encountered and a knot in the catheter was identified. Imaging showed no entanglement of nerve or vascular structures. Using a small skin incision, the catheter was successfully removed.
The case of a 67 year-old woman who underwent left rotator cuff repair with subacromial decompression and acromioplasty with general anesthesia and a posterior cervical paravertebral catheter for postoperative pain control is presented. The catheter was placed without apparent incident and appropriate neural block and analgesia were achieved. On attempted removal of the catheter, resistance was encountered and a knot in the catheter was identified. Imaging showed no entanglement of nerve or vascular structures. Using a small skin incision, the catheter was successfully removed.

