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Effectiveness of addition of interspace between the popliteal artery and the capsule of the posterior knee (IPACK) block to standard block for pain control in total knee arthroplasty

Effectiveness of addition of interspace between the popliteal artery and the capsule of the posterior knee (IPACK) block to standard block for perioperative pain control in total knee arthroplasty; A randomized control trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20190715001
Enrollment
94
Registered
2019-07-15
Start date
2019-08-14
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Osteoarthritis of the knee (OA Knee) OA Knee Osteoarthritis of the knee TKA Total knee arthroplasty TKR Total knee replacement IPACK Interspace between the popliteal artery and the capsule of the posterior knee ACB Adductor cana

Interventions

Interspace between the popliteal artery and the capsule of the posterior knee (IPACK) block plus standard pain control regimen (adductor canal block + periarticular injection),Only standard pain contr
IPACK Block,No IPACK Block

Sponsors

Faculty of Medicine Siriraj Hospital
Lead Sponsor
Faculty of Medicine Siriraj Hospital
Collaborator

Eligibility

Sex/Gender
All
Age
50 Years to 99 Years

Inclusion criteria

Inclusion criteria: Patients age >50 years old who undergo elective unilateral primary TKA

Exclusion criteria

Exclusion criteria: -Contraindications to spinal anesthesia and/or regional nerve block -Allergy to ketolorac or etoricoxib (NSAIDs used in the study) -Previous knee surgery -Patients with severe medical condition; ASA class IV or more -Renal impairment (CrCl < 50 ml/min) -Patients with severe cognitive impairment -Diseases which limit lower extremity function -Non-ambulatory patient -Patients with chronic pain in other parts of body that are under treatment with chronic pain service team -Patient refusal to participate in the study

Design outcomes

Primary

MeasureTime frame
Pain score on Numeric Rating Scale (NRS) at rest at POD 1 Post-operative day 1 Pain score

Secondary

MeasureTime frame
Pain score on NRS at rest/during ambulation at PO day 0-3, 2wk, 6wk PO day 0-3, 2wk, 6wk Pain score,Knee ROM PO day 0-3, 2wk, 6wk Degree,Opioid consumption PO day 0-3 Dose,Time to first dose of analgesia Time to first dose of analgesia Hour,Ambulatory status PO day 3 Ambulation with or without gait aid

Countries

Thailand

Contacts

Public ContactSwist Chatmaitri

Faculty of Medicine Siriraj Hospital

swist_swist@hotmail.com66819879990

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026