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Adductor Canal Block With or Without Biceps Femoris Short Head Block in Total Knee Arthroplasty

29. april 2026 opdateret af: Demet Laflı Tunay, Cukurova University

Effect of Adding a Biceps Femoris Short Head Block to an Adductor Canal Block on Postoperative Pain and Functional Outcomes After Total Knee Arthroplasty: A Randomized Controlled Trial

Total knee arthroplasty is associated with moderate to severe postoperative pain, which may delay mobilization and recovery. Multimodal analgesia including regional anesthesia techniques is widely used to improve outcomes. The adductor canal block (ACB) provides anteromedial knee analgesia but may not adequately cover the posterolateral region.

The biceps femoris short head (BiFeS) block is a novel motor-sparing regional anesthesia technique targeting the posterolateral capsule of the knee. This randomized controlled trial aims to compare the analgesic efficacy and functional outcomes of ACB combined with BiFeS block versus ACB alone in patients undergoing total knee arthroplasty.

The primary outcome is posterior knee pain at postoperative 6 hours. Secondary outcomes include pain scores within 48 hours, opioid consumption, early and late functional recovery, and opioid-related adverse effects.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

132

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

  • Navn: Demet Lafli Tunay, M.D.
  • Telefonnummer: +905358685831
  • E-mail: dlafli@yahoo.com

Studiesteder

    • Saricam
      • Adana, Saricam, Tyrkiet (Türkiye), 01330
        • Çukurova University

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • ASA I-III
  • Adult patients undergoing unilateral primary TKA
  • Planned spinal anesthesia
  • Written informed consent

Exclusion Criteria:

  • Coagulopathy
  • Drug allergy
  • BMI > 35
  • Renal/hepatic failure
  • Chronic pain or opioid use
  • Depression or psychiatric disorder
  • Revision or bilateral TKA
  • Neurological deficits
  • Preoperative ROM < 90°

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Firedobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: ACB + BiFeS
Participants receive spinal anesthesia followed by an ultrasound-guided adductor canal block and a biceps femoris short head block using local anesthetic for postoperative analgesia.
Ultrasound-guided adductor canal block performed with injection of local anesthetic into the adductor canal to block the saphenous nerve and provide postoperative analgesia following total knee arthroplasty.
Ultrasound-guided biceps femoris short head block performed with injection of local anesthetic between the biceps femoris short head and femur to target the posterolateral innervation of the knee for postoperative analgesia.
Aktiv komparator: ACB + sham BiFeS
Participants receive spinal anesthesia followed by an ultrasound-guided adductor canal block and a sham biceps femoris short head block using normal saline.
Ultrasound-guided adductor canal block performed with injection of local anesthetic into the adductor canal to block the saphenous nerve and provide postoperative analgesia following total knee arthroplasty.
Sham ultrasound-guided biceps femoris short head block performed with injection of normal saline at the same anatomical location to maintain blinding without providing active analgesia.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Posterior Knee Pain Intensity
Tidsramme: 6 hours postoperatively
Posterior knee pain assessed using the Numeric Rating Scale (NRS, 0-10), where 0 indicates no pain and 10 indicates worst imaginable pain.
6 hours postoperatively

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Postoperative Pain Intensity
Tidsramme: 30 minutes, 1, 6, 12, 24, and 48 hours postoperatively
Pain intensity at rest and during movement assessed using the Numeric Rating Scale (NRS, 0-10).
30 minutes, 1, 6, 12, 24, and 48 hours postoperatively
Total Opioid Consumption
Tidsramme: 0-48 hours postoperatively
Total opioid consumption measured from patient-controlled analgesia (PCA) device and additional opioid requirements, expressed in milligrams of morphine equivalent.
0-48 hours postoperatively
Rescue Analgesic Use
Tidsramme: 0-48 hours postoperatively
Requirement for additional analgesic medications (e.g., meperidine, paracetamol, ibuprofen) recorded as yes/no and total doses administered.
0-48 hours postoperatively
Functional Recovery
Tidsramme: 24 hours, 48 hours, and 6 weeks postoperatively
Functional recovery assessed by range of motion (ROM), quadriceps muscle strength, time to first ambulation, ability to walk 10 meters without assistance, and performance on the 5-times sit-to-stand test.
24 hours, 48 hours, and 6 weeks postoperatively
Quadriceps Muscle Strength
Tidsramme: Preoperatively, 24 hours, 48 hours, and 6 weeks postoperatively
Quadriceps isometric muscle strength measured using a handheld dynamometer and expressed in Nm/kg.
Preoperatively, 24 hours, 48 hours, and 6 weeks postoperatively
Time to First Ambulation
Tidsramme: Within 48 hours postoperatively
Time from the end of surgery to first successful ambulation, measured in hours.
Within 48 hours postoperatively
Patient Satisfaction
Tidsramme: 48 hours postoperatively
Patient satisfaction with postoperative pain management assessed using a 4-point scale (excellent, good, moderate, poor).
48 hours postoperatively

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

15. maj 2026

Primær færdiggørelse (Anslået)

15. januar 2027

Studieafslutning (Anslået)

15. februar 2027

Datoer for studieregistrering

Først indsendt

23. april 2026

Først indsendt, der opfyldte QC-kriterier

29. april 2026

Først opslået (Faktiske)

5. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

5. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

29. april 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Plan for individuelle deltagerdata (IPD)

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INGEN

IPD-planbeskrivelse

Individual participant data will not be shared.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Kliniske forsøg med Total knæarthroplastik

Kliniske forsøg med Adductor Canal Block

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