A Phase 4 interventional study of 25 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for popliteal nerve block and 10 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for adductor canal nerve block in Nerve Block, General Anesthesia and Spinal Anesthesia, sponsored by Hospital for Special Surgery, New York. Completed at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2019-11-12.
Sponsored by Hospital for Special Surgery, New York · Phase 4, Interventional, and Treatment
The purpose of this study is to determine if there is a difference in patient outcomes with general anesthesia versus spinal anesthesia when given in addition to popliteal and adductor canal nerve blocks for foot and ankle surgery. Popliteal and adductor canal nerve blocks are injections of local anesthetic agents near nerves in the back and front of the knee going to the foot and ankle that provide numbness during and after surgery. These peripheral nerve blocks offer good pain control and reduce the need for opioids (opioids are pain medications such as morphine, Dilaudid, and oxycodone). General anesthesia involves the flow of oxygen and anesthesia gas through a tube which, along with additional intravenous medications, causes unconsciousness and unawareness of sensations during surgery. Spinal anesthesia involves an injection of local anesthetic in the lower back, which causes numbness below the waist. In addition to spinal anesthesia, a sedative is typically given intravenously to cause relaxation and sleepiness throughout surgery.
General, spinal, and nerve block anesthesia are all routinely used for surgery at the Hospital for Special Surgery. General or spinal anesthesia is typically used in addition to peripheral nerve blocks during foot and ankle surgery to 1) allow the surgeons to use a thigh tourniquet to reduce bleeding, 2) provide anesthesia earlier, and 3) prevent unwanted movement. However, it is unclear whether general or spinal anesthesia provides better patient outcomes when given with peripheral nerve blocks. Some reports show that on its own, spinal anesthesia has advantages over general anesthesia in terms of side effects such as nausea and pain. However, these advantages may also be gained from combining peripheral nerve blocks with general anesthesia. Spinal anesthesia can be associated with headache and backache, although headache and backache can also happen after operations performed with general anesthesia. A previous study at the Hospital for Special Surgery showed low rates of nausea among patients who received nerve blocks with spinal anesthesia, and no nausea among patients who received a nerve block with general anesthesia. Therefore, the primary aim of this study is to determine if, as a treatment, either general or spinal anesthesia has advantages over the other treatment in terms of readiness for discharge, side effects, pain and patient satisfaction in an ambulatory foot and ankle population.
822 studies on the registry are indexed under Nausea; 104 are open to participants now.
This study's enrollment of 36 is below the median of 115 across 703 interventional studies indexed under Nausea.
Browse Nausea studies →Hospital for Special Surgery, New York is the lead sponsor of 217 studies on the registry; 39 are open to participants now.
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Exclusion Criteria:
Ultrasound (US) guided sciatic nerve blocks in the popliteal fossa and adductor canal block with 25 mL and 10 mL, respectively, of 0.25% bupivacaine (plus 2 mg preservative-free (PF) dexamethasone / 30 ml), performed under procedural IV sedation protocol. IV sedation protocol: midazolam, 2-5 mg IV + Glycopyrrolate, 0.1 mg IV + Ketamine, 10-20 mg, + propofol as needed. Spinal protocol: 45-60 mg 1.5% mepivacaine, depending on the expected case duration (45 mg for cases with projected duration 1-2 hours, 60 mg for cases with projected duration 2-3 hours). Intraoperative sedation maintained with propofol infusion and ketamine, 10 mg/hr.
Procedure: 25 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for popliteal nerve block · Procedure: 10 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for adductor canal nerve block · Drug: Midazolam, 2-5 mg IV + Glycopyrrolate, 0.1 mg IV + Ketamine, 10-20 mg + propofol as needed · Procedure: 45-60 mg of 1.5% mepivacaine for spinal anesthesia
Ultrasound (US) guided sciatic nerve blocks in the popliteal fossa and adductor canal block with 25 mL and 10 mL, respectively, of 0.25% bupivacaine (plus 2 mg preservative-free (PF) dexamethasone / 30 ml), performed under procedural IV sedation protocol. IV sedation protocol: midazolam, 2-5 mg IV + Glycopyrrolate, 0.1 mg IV + Ketamine, 10-20 mg, + propofol as needed. General anesthesia protocol: After induction with propofol and insertion of the LMA, anesthesia maintained with titrated propofol infusion, sevoflurane, ketamine 10 mg/hr.
Procedure: 25 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for popliteal nerve block · Procedure: 10 mL of 0.25% bupivacaine plus 2 mg preservative-free (PF) dexamethasone / 30 ml for adductor canal nerve block · Drug: Midazolam, 2-5 mg IV + Glycopyrrolate, 0.1 mg IV + Ketamine, 10-20 mg + propofol as needed · Procedure: LMA insertion + titrated propofol infusion + sevoflurane + ketamine 10 mg/hr for general anesthesia
Time Until Patient is Ready for Discharge From Post-Anesthesia Care Unit (PACU) to Home.
Modified Aldrete Scoring System and Marshall and Chung Postanesthesia Discharge Scoring System, measured in time until discharge criteria is met (in minutes)
Time frame: Duration of stay in recovery room after surgery
Numerical Rating Scale (NRS) Pain Scores at 1 Hour Postop
NRS Pain scores at 1 hour after surgery. Rated on a scale of 0 (no pain) to 10 (worst pain imaginable).
Time frame: 1 hour after PACU admission
Numerical Rating Scale Pain Scores at 2 Hours Postop
Numerical rating scale pain score as reported by the patient at 2 hours post-operatively. Rated on a scale of 0 (no pain) to 10 (worst pain imaginable).
Time frame: 2 hours after PACU admission
Numerical Rating Scale Pain Scores on Postoperative Day (POD) 1
Numerical Rating Scale Pain from 0-10. 0 being no pain at all. 10 being the worst pain imaginable.
Time frame: 24 hours after surgery
Postoperative Discomfort and Needs (Post-op Pain, Sore Throat, Back Pain, Nausea, Cold, Hunger, Thirst)
Leiden Perioperative Care Patient Satisfaction questionnaire (LPPSq) score. Performed at 1 hour postoperatively. To what degree did patients have the following symptoms. Rated 1-5, 1 being not at all. 5 being extremely.
Time frame: 1 hour after surgery
Postoperative Discomfort and Needs (Post-op Pain, Sore Throat, Back Pain, Nausea, Cold, Hunger, Thirst)
Rating the Nausea/Vomiting of patients post-operatively.
Time frame: 2 hours after surgery
Postoperative Discomfort and Needs (Post-op Pain, Sore Throat, Back Pain, Nausea, Cold, Hunger, Thirst)
Leiden Perioperative Care Patient Satisfaction questionnaire (LPPSq). From 1-5. 1 being not at all. 5 being extremely.
Time frame: Postoperative day 1
Incidence of Post-dural Puncture Headache
Time frame: Postoperative day 1 and if present, monitored until resolution
Incidence of Transient Neurologic Symptoms
Time frame: Postoperative day 1 and if present, monitored until resolution
Opioid Consumption
Opioid consumption (mg OME) during inpatient stay
Time frame: Duration of stay in recovery room after surgery (average 2 hours)
Opioid Consumption Through First Postoperative Day. Measured in mg OME
Time frame: Postoperative day 1
Non-opioid Analgesic Consumption
The number of patients who took non-opioid analgesic medication for post-operative pain between hospital discharge and postoperative day 1.
Time frame: Hospital discharge to postoperative day 1
Opioid-Related Symptom Distress Scale (ORSDS) Score
Opioid-related symptom distress scale. The ORSDS measures patient opioid-related symptoms on a 4-point scale that evaluates 3 symptom distress dimension (severity, frequency, and bothersomeness) for 12 opioid-related symptoms. Scores range from 0-4, and the mean of the 12 answers is the ORSDS score. Higher values indicate worse opioid-related symptoms.
Time frame: 2 hours after surgery
Cognitive Recovery
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked at 1 hour post-operatively. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
Time frame: 1 hour after surgery
Incidence of Urinary Catheterization
Time frame: Duration of stay in recovery room after surgery (average 2 hours)
Anesthesia-related Postoperative Complications
Measuring any anesthesia-related post-op complications that occured (yes or no)
Time frame: Surgery start to postoperative day 1
Assessment of Patient Blinding to Group Assignment
Patients will be asked whether they believe they were in the general anesthesia or spinal anesthesia group. These responses are then validated using the Bang Blinding Index, which either confirms or refutes the validity of the blinding. The scale runs from -1 to 1, with a score of 0 indicating complete blinding, -1 indicating opposite guessing of groups, and 1 indicating a complete lack of blinding.
Time frame: Postoperative day 1
Patient Satisfaction
Yes/no if patients would request the same anesthetic that they received
Time frame: POD1
Cognitive Recovery at 2 Hours Post-operative
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked at 2 hour post-operatively. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
Time frame: 2 hours after PACU admission
Cognitive Recovery on POD1
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked on postoperative day 1. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
Time frame: Postoperative day 1
Nausea Intensity
Nausea intensity ranked on NRS score following PACU admission to 2 hours after discharge. Scored from 0-10. 0 Being no nausea, 10 being worst nausea imaginable.
Time frame: 2 hours after PACU admission
Back Pain on POD1
Back pain (yes/no) on POD1
Time frame: Postoperative day 1
| Milestone | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Started | 18 | 18 |
| Completed | 18 | 18 |
| Not completed | 0 | 0 |
Modified Aldrete Scoring System and Marshall and Chung Postanesthesia Discharge Scoring System, measured in time until discharge criteria is met (in minutes)
| Minutes | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Time Until Patient is Ready for Discharge From Post-Anesthesia Care Unit (PACU) to Home. | 81 (55 to 104) | 43.5 (38 to 71) |
NRS Pain scores at 1 hour after surgery. Rated on a scale of 0 (no pain) to 10 (worst pain imaginable).
| units on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Numerical Rating Scale (NRS) Pain Scores at 1 Hour Postop | 0 ± 0 | 1.8 ± 2.1 |
Numerical rating scale pain score as reported by the patient at 2 hours post-operatively. Rated on a scale of 0 (no pain) to 10 (worst pain imaginable).
| units on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Numerical Rating Scale Pain Scores at 2 Hours Postop | .4 ± 1.3 | .9 ± 1.6 |
Numerical Rating Scale Pain from 0-10. 0 being no pain at all. 10 being the worst pain imaginable.
| score on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Numerical Rating Scale Pain Scores on Postoperative Day (POD) 1 | 1 ± 1.6 | 1 ± 1.7 |
Leiden Perioperative Care Patient Satisfaction questionnaire (LPPSq) score. Performed at 1 hour postoperatively. To what degree did patients have the following symptoms. Rated 1-5, 1 being not at all. 5 being extremely.
| score on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Pain | 1.1 ± .5 | 1.6 ± .8 |
| A Sore Throat | 1.2 ± .5 | 1.6 ± 1.1 |
| Back Pain | 1.2 ± .5 | 1.2 ± .5 |
| Vomiting | 1 ± 0 | 1 ± 0 |
| Cold | 1.4 ± .8 | 1.3 ± .6 |
| Hunger | 1.9 ± 1.2 | 1.7 ± .9 |
| Thirst | 2.7 ± 1.2 | 2.5 ± 1.2 |
Rating the Nausea/Vomiting of patients post-operatively.
| score on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Pain | 1.2 ± .5 | 1.4 ± .7 |
| Sore Throat | 1.2 ± .4 | 1.6 ± 1.1 |
| Back Pain | 1.1 ± .2 | 1.2 ± .5 |
| Vomiting | 1 ± 0 | 1 ± 0 |
| Cold | 1.1 ± .3 | 1.1 ± .2 |
| Hunger | 1.4 ± .7 | 1.2 ± .5 |
| Thirst | 2.1 ± 1.2 | 1.8 ± 1.2 |
Leiden Perioperative Care Patient Satisfaction questionnaire (LPPSq). From 1-5. 1 being not at all. 5 being extremely.
| score on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Pain | 1.4 ± .7 | 1.5 ± .6 |
| Sore Throat | 1.2 ± .4 | 1.5 ± .6 |
| Back Pain | 1.1 ± .3 | 1.2 ± .6 |
| Vomiting | 1 ± 0 | 1 ± 0 |
| Cold | 1.3 ± .6 | 1 ± 0 |
| Hunger | 1.4 ± .7 | 1.7 ± .7 |
| Thirst | 2.3 ± 1 | 2.2 ± 1 |
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Yes | 4 | 3 |
| No | 14 | 14 |
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Normal | 18 | 18 |
| Transient Neurological Symptoms | 0 | 0 |
Opioid consumption (mg OME) during inpatient stay
| mg OME | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Opioid Consumption | 2.2 ± 7.3 | 5 ± 7 |
| mg OME | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Opioid Consumption Through First Postoperative Day. Measured in mg OME | 8.3 ± 10.3 | 11 ± 12.3 |
The number of patients who took non-opioid analgesic medication for post-operative pain between hospital discharge and postoperative day 1.
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| yes | 12 | 12 |
| No | 6 | 5 |
Opioid-related symptom distress scale. The ORSDS measures patient opioid-related symptoms on a 4-point scale that evaluates 3 symptom distress dimension (severity, frequency, and bothersomeness) for 12 opioid-related symptoms. Scores range from 0-4, and the mean of the 12 answers is the ORSDS score. Higher values indicate worse opioid-related symptoms.
| units on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Opioid-Related Symptom Distress Scale (ORSDS) Score | .3 ± .2 | .3 ± .3 |
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked at 1 hour post-operatively. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| No | 3 | 4 |
| Yes | 14 | 13 |
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Yes | 0 | 0 |
| No | 18 | 18 |
Measuring any anesthesia-related post-op complications that occured (yes or no)
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Yes | 0 | 0 |
| No | 18 | 18 |
Patients will be asked whether they believe they were in the general anesthesia or spinal anesthesia group. These responses are then validated using the Bang Blinding Index, which either confirms or refutes the validity of the blinding. The scale runs from -1 to 1, with a score of 0 indicating complete blinding, -1 indicating opposite guessing of groups, and 1 indicating a complete lack of blinding.
| Bang blinding index | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Assessment of Patient Blinding to Group Assignment | .588 (.313 to .864) | .722 (.47 to .974) |
Yes/no if patients would request the same anesthetic that they received
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Yes | 18 | 17 |
| No | 0 | 0 |
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked at 2 hour post-operatively. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| No | 1 | 4 |
| Yes | 16 | 13 |
Postoperative Quality Recovery Scale Cognitive Domain questionnaire. Asked on postoperative day 1. Either yes (return to pre-operative cognitive function levels) or no (not yet returned to pre-operative function levels)
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| No | 3 | 2 |
| Yes | 14 | 15 |
Nausea intensity ranked on NRS score following PACU admission to 2 hours after discharge. Scored from 0-10. 0 Being no nausea, 10 being worst nausea imaginable.
| score on a scale | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| Nausea Intensity | 0 (0 to 0) | 0 (0 to 0) |
Back pain (yes/no) on POD1
| Participants | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. |
|---|---|---|
| No | 16 | 14 |
| Yes | 2 | 3 |
Collected over 24 hours postoperatively.. Non-serious events are listed at a 0% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | 0/18 (0%) | 0/18 (0%) | 0/18 (0%) |
| General Anesthesia With Popliteal and Adductor Canal Blocks. | 0/18 (0%) | 0/18 (0%) | 0/18 (0%) |
| Age, Categorical(Participants) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| <=18 years | 0 | 0 | 0 |
| Between 18 and 65 years | 14 | 18 | 32 |
| >=65 years | 4 | 0 | 4 |
| Age, Continuous(years) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| Mean | 55 ± 13 | 47 ± 11 | 51 ± 12 |
| Sex: Female, Male(Participants) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| Female | 13 | 13 | 26 |
| Male | 5 | 5 | 10 |
| Ethnicity (NIH/OMB)(Participants) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| Hispanic or Latino | 0 | 1 | 1 |
| Not Hispanic or Latino | 16 | 17 | 33 |
| Unknown or Not Reported | 2 | 0 | 2 |
| Race (NIH/OMB)(Participants) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 |
| Asian | 0 | 1 | 1 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 |
| Black or African American | 0 | 0 | 0 |
| White | 17 | 16 | 33 |
| More than one race | 0 | 0 | 0 |
| Unknown or Not Reported | 1 | 1 | 2 |
| Region of Enrollment(Participants) | Spinal Anesthesia With Popliteal and Adductor Canal Blocks. | General Anesthesia With Popliteal and Adductor Canal Blocks. | Total |
|---|---|---|---|
| United States | 18 | 18 | 36 |
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Hospital for Special Surgery, New York