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Comparison of the Analgesic Effect of Subsartorial Saphenous Block and Popliteal Sciatic vs Subsartorial Saphenous Block and IPACK in Total Knee Replacement Surgery.

Not Applicable
Recruiting
Conditions
Pain, Acute
Knee Osteoarthritis
Anesthesia
Interventions
Drug: IPACK block with Bupivacaine 0.25% with adrenaline
Registration Number
NCT06514365
Lead Sponsor
Germans Trias i Pujol Hospital
Brief Summary

Total knee replacement surgery is associated with significant pain in the immediate postoperative period, especially in movement. In turn, this is associated with more subsequent chronic pain.

There are multiple options and the tendency is to perform increasingly distal nerve blocks to minimize limb weakness and thus allow early rehabilitation. In 2012, in an oral communication, Sanjay Sinha described a new nerve block called iPACK ("Interspace between the Popliteal Artery and the Capsule of the posterior Knee"). There are few studies on the efficacy of such a blockade so far, but none comparing the groups saphene + sciatic blocks vs. saphene + iPACK blocks.

Therefore, this study aims to provide more information on the effectiveness this nerve blocks, in total knee replacement, in terms of analgesia and motor function.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
Female
Target Recruitment
62
Inclusion Criteria
  • Patients with osteoarthritis scheduled for total primary knee arthroplasty with same surgeons
  • Locoregional anesthesia
  • Age equal to or greater than 18 years
  • Consent to participate in the study
Exclusion Criteria
  • Age under 18 years old
  • General anesthesia
  • Allergy to local anesthetics
  • Severe kidney failure (Cr ≥ 2mg / dL)
  • Chronic opioid use (over 3 months)
  • Chronic pregabalin / gabapentin use (more than 3 months)
  • Psychiatric illness that may interfere with the evaluation or follow-up

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Echo-guided IPACK blockIPACK block with Bupivacaine 0.25% with adrenalineIPACK block using 0.25% bupivacaine 15mL with adrenaline once.
Echo-guided sciatic blockIPACK block with Bupivacaine 0.25% with adrenalineSciatic nerve block using 0.25% bupivacaine 15mL with adrenaline once.
Primary Outcome Measures
NameTimeMethod
Pain at movement6 hours after surgery

Measured by the numerical visual scale at 48 hours after intradural anesthesia, minimum of 0 and maximum of 10, where means no pain and 10 means the worst pain in the life of the patient.

Pain with movement48 hours after surgery

Measured by the numerical visual scale at 48 hours after intradural anesthesia, minimum of 0 and maximum of 10, where means no pain and 10 means the worst pain in the life of the patient.

Pain at rest48 hours after surgery

Measured by the numerical visual scale at 48 hours after intradural anesthesia, minimum of 0 and maximum of 10, where means no pain and 10 means the worst pain in the life of the patient.

Motor block48 hours after surgery

Measured on a scale of 3, where 0 = no motor block, 1 = partial motor block and 2 = complete motor block. It will be performed on plantar flexion (distribution of the tibial nerve) and dorsiflexion (peroneal distribution)).

Secondary Outcome Measures
NameTimeMethod
Opioids dose48 hours after surgery

Measured in milligrams of intravenous morphine hydrochloride daily.

Discharge daysDays

Time to discharge measured in days

Ambulation timeUp to 24 hours

Time to ambulation (measured in hours) from discharge from URPA

Patient satisfaction24 hours after surgery

Patient satisfaction on a scale of 0 to 10, where 0 is minimum satisfaction and 10 is maximum satisfaction.

Trial Locations

Locations (1)

Hospital Universitari Germans Trias i Pujol

🇪🇸

Badalona, Barcelona, Spain

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