Tidal Lavage in Knee Osteoarthritis

This study has been completed.
Sponsor:
Information provided by:
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
ClinicalTrials.gov Identifier:
NCT00000424
First received: November 3, 1999
Last updated: December 28, 2006
Last verified: March 2001
  Purpose

This study compared the effects of tidal lavage (washing out) of the knee joint and an imitation lavage procedure in people with knee osteoarthritis. In tidal lavage, the doctor flushes out a knee joint with repeated injections of a mild salt solution, done under local anesthesia. Study participants had to meet standard criteria for diagnosis of osteoarthritis but could have low, medium, or high severity of x-ray changes indicating knee osteoarthritis. We performed the lavage procedure once, and did quarterly followups for 1 year. We permitted patients to use some other osteoarthritis treatments during the study, such as non-narcotic pain relievers, nonsteroidal anti-inflammatory drugs, and physical therapy.


Condition Intervention Phase
Osteoarthritis, Knee
Procedure: Tidal lavage vs. sham lavage of the knee
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Treatment
Official Title: Tidal Lavage vs. Sham Lavage in Knee Osteoarthritis (OA)

Resource links provided by NLM:


Further study details as provided by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS):

Estimated Enrollment: 180
Study Start Date: July 1995
Estimated Study Completion Date: June 2001
Detailed Description:

This study was a randomized, double-blind, sham procedure-controlled evaluation of tidal lavage as a treatment for knee osteoarthritis. We achieved blinding by raising a drape during the study procedure and mimicking the sensory aspects of tidal lavage, but not flushing the knee, in the sham lavage group. We gave all study participants subcutaneous anesthesia with lidocaine and then bupivacaine and then attempted aspiration of the knee, removing up to 5 ml of synovial fluid for examination and then injecting the knee with 20 ml of bupivicaine.

In people who received the sham treatment, we placed a 16-gauge catheter in the lateral suprapatellar position just to the knee joint capsule and infused small volumes (less than 5 ml per "exchange" x 20) of saline into the subcutaneous tissue while manipulating the anterior knee to mimic efforts to shift fluid within the knee during the "aspiration" phase of each exchange. Patients could see the supply bag of sterile saline but could not see the waste bag of this closed drainage system.

For tidal lavage patients, we made the catheter puncture in the lateral suprapatellar pouch and repeatedly distended the knee with 30-50 ml of sterile saline, then aspirated this volume (about 20 exchanges for a total of 1 liter of flush solution).

At the end of the procedure, we told the patients that their knee might be swollen due to retained saline, and to expect this additional swelling to resolve over 24-48 hours, during which time they were to minimize activity. The person who did the procedure (the principal investigator) then left the room. The study nurse, who was not present for the procedure and was blinded to the procedure's identity, asked the patients which treatment they thought they received (tidal lavage or sham lavage). We scheduled patient followups with this study nurse for 3, 6, and 12 months, and patients completed questionnaires at each visit. Questionnaires were both arthritis-specific (WOMAC) and global (Quality of Well-Being).

  Eligibility

Ages Eligible for Study:   40 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Knee pain attributed to osteoarthritis for at least 1 year.
  • Meet American College of Rheumatology clinical or clinical plus x-ray criteria for knee osteoarthritis
  • Have at least a moderate pain rating on at least one of the five Western Ontario-McMaster University Osteoarthritis Index (WOMAC) scales

Exclusion Criteria:

  • Significant conditions of the spine, hips, or feet that affect the ability to walk
  • Significant medical conditions that affect the ability to walk and function
  • Inflammatory arthritis, such as rheumatoid arthritis or gout
  • Degenerative arthritis secondary to other conditions, such as hemochromatosis, Wilson's disease, or ochronosis
  • Current significant soft tissue rheumatism such as fibromyalgia, anserine bursitis, or trochanteric bursitis
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00000424

Locations
United States, Indiana
Indiana University School of Medicine
Indianapolis, Indiana, United States, 46202
Sponsors and Collaborators
Investigators
Principal Investigator: John D. Bradley, MD Indiana University School of Medicine
  More Information

Publications:
Bradley JD, Heilman DK, Wallick JE, Olin P. Effect of blinding on response to tidal lavage (TL) and sham lavage (SL) in knee osteoarthritis (KOA). Arthritis Rheum 42(Supplement):S292,1999.
Bradley JD, Heilman DK, G'Sell P: Do psychological factors "predict" response to tidal lavage (TL) and sham lavage (SL) in knee osteoarthritis (KOA)? Arthritis Rheum 43(Supplement):S337,2000

ClinicalTrials.gov Identifier: NCT00000424     History of Changes
Other Study ID Numbers: R01 AR42165, NIAMS-001
Study First Received: November 3, 1999
Last Updated: December 28, 2006
Health Authority: United States: Federal Government

Keywords provided by National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS):
Osteoarthritis (OA)
Knee
Sham lavage
Tidal lavage
Lavage therapy
Nonsteroidal anti-inflammatory drug (NSAID)
Placebo
Radiography
Human therapy evaluation
WOMAC

Additional relevant MeSH terms:
Osteoarthritis, Knee
Osteoarthritis
Arthritis
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Analgesics
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Pharmacologic Actions
Anti-Inflammatory Agents
Therapeutic Uses
Antirheumatic Agents

ClinicalTrials.gov processed this record on September 16, 2014