Comparison of Distal IPACK and Popliteal Plexus Block Combined With Femoral Triangle Block After Total Knee Arthroplasty

NCT ID: NCT07130552

Last Updated: 2025-09-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-29

Study Completion Date

2026-04-30

Brief Summary

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This study aims to investigate the effect of femoral triangle block combined with popliteal plexus block and distal IPACK block on postoperative pain after total knee arthroplasty (TKA)

Detailed Description

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Popliteal Plexus Block (PPB) is a new nerve block technique that has been shown to anaesthetise nerves involved in the innervation of the posterior part of the knee joint.

The IPACK (interspace between the popliteal artery and capsule of the posterior knee) block is a regional anesthesia technique in which a local anesthetic is infiltrated under ultrasound guidance between the popliteal artery and the capsule of the posterior knee. This technique blocks the branches of the obturator nerve, the common peroneal nerve, and the tibial nerve in the popliteal region. In the context of knee arthroplasty, the application of the IPACK block has been associated with lower scores for ambulatory pain, lower scores for resting pain, and reduced morphine consumption.

Although both techniques of blockade seem to be efficient in the context of analgesia for the posterior part of the knee after TKA. No study compares these two blocks as part of multimodal analgesia to provide pain relief after TKA.

This study aimed to evaluate the analgesic effect of PPB or distal IPACK, in addition to femoral triangle block, as a component of a multimodal analgesic regimen after TKA.

Conditions

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Osteo Arthritis of the Knee

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Group Popliteal plexus block

femoral triangle block and popliteal plexus block

Group Type EXPERIMENTAL

femoral triangle block and popliteal plexus block

Intervention Type DEVICE

Single dose bolus, 10 ml 5% bupivacaine will be used for FTB, 10 ml 5% bupivacaine will be used for PPB

Group distal iPACK

Femoral triangle block and distal iPACK

Group Type EXPERIMENTAL

Femoral triangle block and distal iPACK

Intervention Type DEVICE

Single dose bolus, 10 ml 5% bupivacaine will be used for FTB, 10 ml 5% bupivacaine will be used for distal iPACK

Interventions

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femoral triangle block and popliteal plexus block

Single dose bolus, 10 ml 5% bupivacaine will be used for FTB, 10 ml 5% bupivacaine will be used for PPB

Intervention Type DEVICE

Femoral triangle block and distal iPACK

Single dose bolus, 10 ml 5% bupivacaine will be used for FTB, 10 ml 5% bupivacaine will be used for distal iPACK

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Patients undergoing total knee arthroplasty under spinal anesthesia
* American Society of Anesthesiologists (ASA) status I-III
* Patients who give informed consent

Exclusion Criteria

* Patients unable to cooperate
* Kidney disease with GFR \< 50 ml/min
* Daily opioid consumption \> 1 month
* Allergy to local anesthetics
* Neurological problems of the lower extremity
* Contraindications to peripheral nerve blocks
Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Karaman Training and Research Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Karaman Training and Research Hospital, Karaman, Karaman 70200

Karaman, Karaman, Turkey (Türkiye)

Site Status RECRUITING

Countries

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Turkey (Türkiye)

Central Contacts

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Tayfun Et

Role: CONTACT

+905063670717

Facility Contacts

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Tayfun Et

Role: primary

05063670717

Other Identifiers

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06-2022/16

Identifier Type: -

Identifier Source: org_study_id

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