Effect of Bupivacaine Liposome Injection on Muscle Strength After Total Knee Arthroplasty (TKA)
Effect of Bupivacaine Liposome Adductor Canal Block on Muscle Strength After Total Knee Arthroplasty.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Xin li Ni, MD
- Telefonnummer: 13909586966
- E-mail: xinlii6@nyfy.com.cn
Undersøgelse Kontakt Backup
- Navn: Qiaojiang Shen
- Telefonnummer: 17829917323
- E-mail: 2832394521@qq.com
Studiesteder
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-
Ningxia
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Yinchuan, Ningxia, Kina
- General Hospital of Ningxia Medical University
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Kontakt:
- Xinli Ni, MD
- Telefonnummer: 86-0951-6743252
- E-mail: xinlini6@nyfy.com.cn
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
Inclusion Criteria:
- Patients aged 60-75 years scheduled for elective TKA;
- ASA physical status classification II-III;
- BMI 18-30 kg/m²;
- Agreement to participate in this study and provision of signed informed consent.
Exclusion Criteria:
- Individuals with communication barriers such as language or hearing impairments;
- Patients with contraindications to nerve blocks;
- Severe systemic diseases, such as severe renal disease (estimated glomerular filtration rate below 50 mL/min), cardiac disease (congestive heart failure New York Heart Association Class III to IV), or severe hepatic disease defined as a current or past diagnosis of acute/subacute hepatic necrosis, acute liver failure, chronic liver disease, liver abscess, hepatic coma, or hepatorenal syndrome;
- History of long-term opioid use (defined as daily or nearly daily opioid use within the past 3 months).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Dobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: a single-injection adductor canal block
An ultrasound-guided adductor canal block is performed via the conventional adductor canal approach.
Under ultrasound guidance, 20 milliliters of 1.33% bupivacaine liposome is injected into the adductor canal.
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An ultrasound-guided adductor canal block is performed via the conventional adductor canal approach.
Under ultrasound guidance, 20 milliliters of 1.33% bupivacaine liposome is injected into the adductor canal.
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|
Aktiv komparator: continuous femoral nerve block
An ultrasound-guided perineural sheath block of the femoral nerve is performed via the conventional femoral nerve approach.
A femoral nerve catheter is then placed and connected to an analgesia pump containing 150 milliliters of 0.20% ropivacaine.
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An ultrasound-guided perineural sheath block of the femoral nerve is performed via the conventional femoral nerve approach.
A femoral nerve catheter is then placed and connected to an analgesia pump containing 150 milliliters of 0.20% ropivacaine.
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Quadriceps Muscle Strength
Tidsramme: 24 hours after surgery
|
The Maximum Voluntary Isometric Contraction (MVIC) test is used to assess quadriceps strength.
The tester holds a handheld dynamometer.
The patient sits on the bed with legs hanging naturally, and the knee is flexed to 60°.
The patient is instructed to slowly exert force to extend the knee forward.
As the patient exerts force, the tester applies an equal and opposite counterforce with the dynamometer to maintain the position and angle of the lower leg.
The patient sustains maximum effort for 3-5 seconds, and the peak value displayed on the dynamometer is recorded as the result for that trial.
Each leg is tested 2-3 times, with a 60-90 second rest between trials to prevent muscle fatigue from affecting the results.
The average value is recorded as the final outcome.
The unit of measurement is Newtons (N).
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24 hours after surgery
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Quadriceps muscle strength at other time points
Tidsramme: 48 hours after surgery
|
The Maximum Voluntary Isometric Contraction (MVIC) test is used to assess quadriceps strength.
The tester holds a handheld dynamometer.
The patient sits on the bed with legs hanging naturally, and the knee is flexed to 60°.
The patient is instructed to slowly exert force to extend the knee forward.
As the patient exerts force, the tester applies an equal and opposite counterforce with the dynamometer to maintain the position and angle of the lower leg.
The patient sustains maximum effort for 3-5 seconds, and the peak value displayed on the dynamometer is recorded as the result for that trial.
Each leg is tested 2-3 times, with a 60-90 second rest between trials to prevent muscle fatigue from affecting the results.
The average value is recorded as the final outcome.
The unit of measurement is Newtons (N).
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48 hours after surgery
|
|
Numeric Rating Scale (NRS) Score
Tidsramme: 24 and 48 hours after surgery
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Using a scale from 0 to 10 to indicate pain intensity, where 0 represents no pain and 10 represents the worst possible pain.
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24 and 48 hours after surgery
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Quadriceps muscle strength grade
Tidsramme: 24 and 48 hours after surgery
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Perform a Manual Muscle Test (MMT).
The patient is placed in the supine position, with a soft pillow under the knee to provide slight flexion, or sits on the edge of the bed with legs hanging naturally.
The examiner stabilizes the patient's thigh with one hand to prevent hip compensation and applies downward resistance with the other hand just above the patient's ankle.
Instruct the patient to forcefully extend the knee against the resistance.
Observe muscle contraction and joint range of motion, and assess according to the 0-5 grade muscle strength scale.
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24 and 48 hours after surgery
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Knee Joint Range of Motion
Tidsramme: 24 and 48 hours after surgery
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Using a goniometer, accurately measure the patient's knee joint flexion and extension range of motion.
During measurement, the patient is in the supine position.
The axis of the goniometer is aligned with the lateral femoral condyle, the stationary arm is parallel to the long axis of the femur, and the movable arm is parallel to the long axis of the tibia.
Record the angles at full knee extension (0°) and maximum flexion separately.
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24 and 48 hours after surgery
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Total Opioid Consumption
Tidsramme: From the end of the surgery until 72 hours postoperatively
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Total postoperative consumption of opioids.
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From the end of the surgery until 72 hours postoperatively
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Postoperative Adverse Reactions
Tidsramme: From the end of the surgery until 72 hours postoperatively
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Including nausea and vomiting, urinary retention, constipation, puncture site ecchymosis and infection, as well as local anesthetic systemic toxicity.
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From the end of the surgery until 72 hours postoperatively
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Studiestol: Xinli Ni, General Hospital of Ningxia Medical University
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- Qiaojiang Shen-2026-03
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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