An interventional study of Ankle Block and Sciatic nerve block in Pain, Postoperative, sponsored by Centre Hospitalier Universitaire Vaudois. Completed at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-08-03.
Sponsored by Centre Hospitalier Universitaire Vaudois · Not applicable, Interventional, and Other
Pain after forefoot surgery can be important and regional anesthesia plays a crucial role in post-operative pain control. Several techniques can be used to achieve surgical anesthesia as well as postoperative analgesia. Of those techniques the ankle block and sciatic nerve block at the popliteal fossa are the most common. The primary goal of this study is thus to compare the analgesic duration of these two types of blocks for patients undergoing forefoot surgery.
Patients scheduled for unilateral forefoot surgery, aged over 18 years old and ASA status I-III without any contra-indications for regional anesthesia will be enrolled.
After a standard randomisation, patients will be allocated in either of two groups : ankle block or sciatic nerve block at the popliteal fossa. In both groups the patients will have a multimodal analgesic regimen followed by a patient-controlled-analgesia (PCA) of morphine.
The primary endpoint is the analgesic duration, defined by the time between the end of the block procedure and the first IV request of morphine from a PCA.
5,093 studies on the registry are indexed under Pain, Postoperative; 1,140 are open to participants now.
This study's enrollment of 60 is below the median of 75 across 4,344 interventional studies indexed under Pain, Postoperative.
Browse Pain, Postoperative studies →Centre Hospitalier Universitaire Vaudois is the lead sponsor of 203 studies on the registry; 47 are open to participants now.
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Exclusion Criteria:
Ankle block will be performed under ultrasound guidance.
Procedure: Ankle Block
PSNB will be performed under ultrasound guidance, along with a saphenous nerve block at the ankle
Procedure: Sciatic nerve block
Ankle block will be performed prior to surgery under ultrasound guidance
Sciatic nerve block will be performed prior to surgery under ultrasound guidance
Duration of analgesia
Time elapsed between block procedure and first iv request of morphine from PCA
Time frame: 24 hours after surgery
Total opioid consumption at 24h postoperatively
Total consumption of morphine from PCA at 24 postoperative hours
Time frame: 24 hours after surgery
Pain score at rest at 4 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 4 hours after surgery
Pain score on movement at 4 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 4 hours after surgery
Pain score at rest at 12 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 12 hours after surgery
Pain score on movement at 12 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 12 hours after surgery
Pain score at rest at 24 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 24 hours after surgery
Pain score on movement at 24 postoperative hours
Pain score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 24 hours after surgery
Block success rate
Success of block assessed by pinprick test
Time frame: 45 minutes after block procedure
Global patient satisfaction 48h after surgery
Patient satisfaction score (visual analog scale, 0 = minimum; 10 = maximum)
Time frame: 48 hours after surgery
Complications after block
Report of any intravascular injection or any sensory/motor anomalies
Time frame: 48 hours after surgery
Rate of neuropathic pain
Rate of patients describing neuropathic pain 4-6 weeks postoperatively
Time frame: 4-6 weeks postoperatively
Rate of paresthesia
Rate of patients complaining of paresthesia
Time frame: Up to 24 hours after block procedure
Block procedure time
Time from first ultrasound image to needle withdrawal
Time frame: Up to 10 minutes after ultrasound scanning
Plan to share: No
No publications or documents are linked to this record.
This study is completed, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.
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Centre Hospitalier Universitaire Vaudois