Trial · NCT01981291
Duration of Sciatic Nerve Block After Injection of Local Anesthetic In or Around the Nerve
NCT01981291, Phase 4, Completed, University of Parma
3 sourcestrials-2026-11-12-0.5.0
Cite this record
ConductScience Library. Duration of Sciatic Nerve Block After Injection of Local Anesthetic In or Around the Nerve. Trials, record NCT01981291. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01981291
On this page
Trial
As registered on ClinicalTrials.gov, in the graph's capture of the registry.
- Title
- Duration of Sciatic Nerve Block After Injection of Local Anesthetic In or Around the Nerve
- NCT number
- NCT01981291
- Status
- Completed
- Phases
- Phase 4
- Enrollment
- 120 participants, actual
- Lead sponsor
- University of Parma
- Conditions
- Orthopedic Surgical Procedures, Postoperative Pain
- Interventions
- Intraneural Injection for Subgluteal Sciatic Nerve Block, Perineural Injection for Subgluteal Sciatic Nerve Block, Femoral Nerve Block, Patient-controlled postoperative analgesia, Mepivacaine
- First posted
- 2013-11-11
- Last updated
- 2013-11-19
Source ClinicalTrials.gov
Registered outcomes5
Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.
| List | Outcome | Time frame | Description |
|---|---|---|---|
| Primary | Differences in Time to Resolution of Sciatic Nerve Block | <12 h | The time at which sensory and motor function of the sciatic nerve have recovered at least to the following criteria: * Sensory: patients feel discomfort when pricked with a thin needle (25G) * Motor: patients may move both toes and ankle, albeit with reduced strength This outcome measure will be examined by an investigator every 30-60 min and reported by patients as "time to return of sensation and movement". The investigator-reported value will be preferred if both are available. |
| Secondary | Block Onset Time | ≤30 min | Time to onset of sciatic nerve anesthesia, defined as meeting at least the following criteria: * Sensory: does not feel pain or discomfort when pricked with a 25G needle. * Motor: able to slightly curl toes; unable to flex the ankle. |
| Secondary | Success Rate of Anesthetic Nerve Blocks | ≤30 min | The percentage of patients who attain the criteria for block success within 30 minutes of the injeciton. Investigators will also report the percentage of patients who successfully complete surgery without significant additional analgesia (see below); this will be defined as "clinical success rate." |
| Secondary | Incidence and Prevalence of Neurologic Disturbances | 30 days | Patients will be interviewed at \~4 h (block resolution visit), 7 days and (if necessary) at 30 days to assess for residual neurologic disturbances in the sciatic nerve territory. The incidence/prevalence of these phenomena will be noted. |
| Other | Extra- vs. Intraneural Minimum Electrical Stimulation Thresholds | (during the procedure) | The minimum electrical nerve stimulation threshold will be recorded as a function of needle tip position. |
Source ClinicalTrials.gov
Outcomes0
Each outcome the trial posted results for, in ClinicalTrials.gov's words.
None in this release.
Results by group0
Each measurement the trial posted, group by group, in the words and numbers it posted.
None in this release.
Participant flow0
How many started, completed or left each group, period by period.
None in this release.
Adverse events0
Each adverse event the trial posted, group by group: the participants affected out of those at risk.
None in this release.
Adverse event totals0
The totals the trial posted for each group.
None in this release.
Papers2
The papers the trial lists on ClinicalTrials.gov.
Grants0
The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.
None in this release.
Trial comparisons0
Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.
None in this release.
Tests0
The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.
None in this release.
Data dates
The day each source was copied for this release.
Sources 3
- ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
- ClinicalTrials.govNo license stated
- NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
- ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
- ClinicalTrials.govnone stated
- NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)
ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.
For software
Read this trial from software.
The record and each of its lists are JSON, twenty rows a page. No key.
GET https://conductscience.org/api/trials/v1/NCT01981291
GET https://conductscience.org/api/trials/v1/NCT01981291/registered