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Bariatric Lap Band Surgery as a Treatment for Knee Osteoarthritis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02272218
Recruitment Status : Completed
First Posted : October 22, 2014
Last Update Posted : February 11, 2020
Information provided by (Responsible Party):
NYU Langone Health

Brief Summary:
The primary purpose of this study is to evaluate laparoscopic gastric banding (LAGB) surgery as a treatment option for obese patients with pain from knee osteoarthritis (KOA) refractory to medical treatment. The primary outcome will be the reduction in OA-related pain and disability after LAGB.

Condition or disease Intervention/treatment Phase
Knee Osteoarthritis Procedure: bariatric lap band surgery Not Applicable

Detailed Description:

This is a pilot study of 15 (may need to consent/screen 30 patients to have 15 enrolled) obese patients (BMI 30-40) with painful knee osteoarthritis. Although prior studies have reported musculoskeletal secondary outcomes following various types of bariatric surgery, investigators propose the evaluation of laparoscopic gastric banding (LAGB) to treat a cohort of patients with moderate to severe knee osteoarthritis.

Once eligible patients are identified by rheumatologists and/or bariatric team and consented for the study, they will have bilateral knee radiographs (standard of care) to ensure they have a sufficient degree of OA. Patients will then be referred to the bariatric surgeons, who will then confirm the patients' interest, understanding and suitability for the LAGB surgery which is a FDA approved procedurefor patients with a BMI >30 and at least one obesity-related comorbidity (including knee OA)37. It is the application of this approved procedure that constitutes the research question should LAGB surgery be considered as a treatment option to improve pain and physical disability in patients with knee OA? During the pre-operative process patients will be given study questionnaires to evaluate knee pain and function, have a musculoskeletal exam and blood/urine will be collected.These procedures will be repeated at post-operative intervals to track response of the knees to the LAGB.

The primary outcome measure is improvement in OA-related knee pain and physical disability. Improvement of pain and function will be defined by changes in the VAS, WOMAC, AORC and KOOS scores. The degree of improvement required to qualify as such will be described in the methods sections below.

Secondary outcome measures include (1) radiographic evidence of OA progression or worsening despite the LABG, (2) weight loss, and (3) reduction or discontinuation of pain medication.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 5 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Bariatric Lap Band Surgery as a Treatment for Knee Osteoarthritis
Actual Study Start Date : October 23, 2012
Actual Primary Completion Date : October 18, 2018
Actual Study Completion Date : October 18, 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Osteoarthritis

Arm Intervention/treatment
There is only one arm for this study, since this study involves a single cohort receiving the same intervention, laparoscopic gastric banding (LAGB) surgery.
Procedure: bariatric lap band surgery
The intervention in this study is laparoscopic gastric banding (LAGB) surgery as a treatment option for obese patients with pain from knee osteoarthritis (KOA) refractory to medical treatment

Primary Outcome Measures :
  1. reduction in OA-related pain and disability after LAGB. [ Time Frame: 4 years ]
    questionnaires will be distributed pre- and post-surgery.

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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Ages Eligible for Study:   25 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. able and willing to provide written informed consent
  2. at least 25 years of age
  3. body mass index (BMI) between 30 and 40 (FDA-approved BMI window for LAGB surgery if there is at least one comorbidity)
  4. pain in at least one knee for 15 of the 30 days prior to screening

    1. clinically diagnosed with knee OA using American College of Rheumatology (ACR) criteria.
    2. Patient pain visual analog scale (VAS) ≥40
    3. pain not controlled with Tylenol, NSAIDs or topical therapy (or unable to use/tolerate NSAIDs for medical reasons)
  5. anterior-posterior (AP) radiograph of at least one knee with Kellgren-Lawrence (K-L) grading scale ≥ 2 (moderate to severe osteoarthritis)

Exclusion Criteria:

  1. unable to provide written informed consent
  2. less than 25 yrs of age
  3. BMI <30 or >40
  4. does not fulfill the ACR criteria for OA
  5. VAS <40
  6. any clinical disorder requiring use of corticosteroids within one week of visit
  7. viscosupplementation or intra-articular steroid injection to the affected knee within the prior one month
  8. bilateral total knee replacement
  9. has not yet tried to treat pain with oral NSAIDs/COX-2 inhibitors (unless medical contraindications), Tylenol, or topical therapy
  10. co-morbidities including, congestive heart failure, hepatic or renal disease, chronic infectious diseases, non-cutaneous cancer within last five years
  11. comorbidities that would make lap band surgery contraindicated (severe cardiopulmonary diseases, severe esophagitis, stomach or duodenal ulcers, esophageal or gastric varices, inflammatory bowel disease, liver cirrhosis, chronic pancreatitis, alcohol or drug addiction, on chronic steroid treatment, or active infections)
  12. anterior-posterior (AP) radiograph of both knees with K-L grade < 2
  13. pregnancy or women of childbearing potential with a positive pregnancy test during pre-surgical phases of the study as part of standard of care pre-op testing.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02272218

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United States, New York
Center for Musculoskeletal Care
New York, New York, United States, 10016
Sponsors and Collaborators
NYU Langone Health

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Responsible Party: NYU Langone Health Identifier: NCT02272218    
Other Study ID Numbers: 12-03313
First Posted: October 22, 2014    Key Record Dates
Last Update Posted: February 11, 2020
Last Verified: February 2020

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Osteoarthritis, Knee
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases