Efficacy Testing of Different Tourniquet Pressure Used for Postoperative Pain Reduction in Total Knee Arthroplasty

Summary

Tourniquet use during total knee replacement (TKR) improves visibility, significantly decreases intra-operative blood loss and reduce operative time. However, tourniquet use also has a negative effect on postoperative pain, postoperative range of motion(ROM), wound complication, deep vein thrombosis (DVT), pulmonary embolism (PE), thigh muscle strength, and functional recovery after TKR. Therefore, the investigators conducted a three-arm prospective, randomized, controlled trial study to compare the efficacy of different tourniquet pressure used between systolic blood pressure + 75 mmHg, systolic blood pressure + 100 mmHg, and systolic blood pressure + 150 mmHg.

Conditions

• Osteoarthritis, Knee

Interventions

DEVICE

Tourniquet: Systolic blood pressure + 75 mmHg

Spinal block without morphine. Medial parapatellar approach. Same posterior stabilized design and operated by a single surgeon. Drug: Peri-articular Transmine(15 mg/kg) combined with multimodal local anesthetic infiltration (0.5% bupivacaine 100 mg, morphine sulfate 5 mg, 0.1% epinephrine 0.6 mg, and ketorolac 30 mg) mixed NSS up to 75 mL. Procedure/Surgery: TXA combined with multimodal local anesthetic infiltration inject into peri-articular area (Anterior soft tissue 25 mL+Medial gutter area 25 mL+Lateral gutter area 25 mL) prior to capsular closure and tourniquet deflation

DEVICE

Tourniquet: Systolic blood pressure + 100 mmHg

Spinal block without morphine. Medial parapatellar approach. Same posterior stabilized design and operated by a single surgeon. Drug: Peri-articular Transmine(15 mg/kg) combined with multimodal local anesthetic infiltration (0.5% bupivacaine 100 mg, morphine sulfate 5 mg, 0.1% epinephrine 0.6 mg, and ketorolac 30 mg) mixed NSS up to 75 mL. Procedure/Surgery: TXA combined with multimodal local anesthetic infiltration inject into peri-articular area (Anterior soft tissue 25 mL+Medial gutter area 25 mL+Lateral gutter area 25 mL) prior to capsular closure and tourniquet deflation

DEVICE

Tourniquet: Systolic blood pressure + 150 mmHg

Spinal block without morphine. Medial parapatellar approach. Same posterior stabilized design and operated by a single surgeon. Drug: Peri-articular Transmine(15 mg/kg) combined with multimodal local anesthetic infiltration (0.5% bupivacaine 100 mg, morphine sulfate 5 mg, 0.1% epinephrine 0.6 mg, and ketorolac 30 mg) mixed NSS up to 75 mL. Procedure/Surgery: TXA combined with multimodal local anesthetic infiltration inject into peri-articular area (Anterior soft tissue 25 mL+Medial gutter area 25 mL+Lateral gutter area 25 mL) prior to capsular closure and tourniquet deflation

Sponsors & Collaborators

• Boontanapibul, Krit, M.D.

  collaborator INDIV

• Thammasat University

  lead OTHER

Principal Investigators

• Piya Pinsornsak · Thammasat University Hospital

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

50 Years

Max Age

90 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2019-05-01

Primary Completion

2020-04-30

Completion

2020-07-31

Countries

• Thailand

Study Locations