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Shoe Modification and Knee Osteoarthritis

This study has been completed.
Information provided by (Responsible Party):
VA Office of Research and Development Identifier:
First received: March 11, 2005
Last updated: October 20, 2015
Last verified: October 2015
This trial will assess the ability of shoe inserts to relieve pain and disability in people with knee osteoarthritis (OA) in the inner (medial) aspect of the knee.

Condition Intervention
Knee Osteoarthritis Device: Shoe insert Other: walking shoes

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Shoe Modification and Knee Osteoarthritis

Resource links provided by NLM:

Further study details as provided by VA Office of Research and Development:

Primary Outcome Measures:
  • WOMAC pain scale [ Time Frame: 6 months ]

Enrollment: 40
Study Start Date: March 2004
Study Completion Date: September 2005
Primary Completion Date: September 2005 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: walking shoes
walking shoes
Other: walking shoes
walking shoes
Experimental: walking shoes + shoe insert
walking shoes + shoe insert
Device: Shoe insert
Subjects with knee OA underwent gait analysis and knee pain and function assessment at baseline while wearing walking shoes and after four weeks of wearing walking shoes with lateral-wedged insoles.

Detailed Description:
Osteoarthritis (OA), the most common joint disease in humans, is a significant cause of pain and disability. Its prevalence increases with age, leading to about 65-85% of those age 65 years and older having OA. Involvement of the knee with OA is the main reason for significant functional impairment as it alters ambulation through pain and stiffness. Nonpharmacological management of knee OA includes the use of orthotic supports such as wedged insoles for varus or valgus knee deformities to relieve pain and improve function in the early stages of this joint disease. Although these interventions are desirable because they are simple and inexpensive, we do not have a clear understanding about their efficacy in relieving pain and disability in people with knee OA. We also do not know whether there is a relationship between changes in joint biomechanics that occur with wedged insoles and changes in function and progression of OA. Furthermore, information is lacking regarding which patients would benefit from wedged insoles. Answering these questions will be critically important in the development of guidelines for the prescription of wedged insoles in knee OA. Patients in this study will be evaluated at baseline and after wearing the lateral-wedged insoles immediately and after wearing the insoles for four weeks. The participants will wear lateral-wedged insoles for the painful knee(s) for as many hours and for as many days of the week as they can tolerate. Some subjects may use a neutral position insole for an asymptomatic knee.

Ages Eligible for Study:   45 Years to 85 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Ability to walk 30 feet without a walking aid
  • Ability to stand unaided
  • Ability to understand verbal instructions
  • Ability to give informed consent

Exclusion Criteria:

  • History of knee trauma or surgery including arthroscopic surgery in the past 6 months
  • Severe obesity (>30 kg/m2)
  • Neurological disease
  • Injury or amputation to the lower extremity joints
  • History of other types of arthritis
  • Symptomatic spine, hip, ankle, or foot disease that would interfere with assessment of the knee
  • Intra-articular steroids in the past 3 months, or hyaluronic acid in the last 6 months
  • Poor health that would impair compliance or assessment such as shortness of breath with exertion
  Contacts and Locations
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Please refer to this study by its identifier: NCT00105365

United States, California
VA Greater Los Angeles Healthcare System, West Los Angeles, CA
West Los Angeles, California, United States, 90073
Sponsors and Collaborators
VA Office of Research and Development
Principal Investigator: Meika A Fang, MD VA Greater Los Angeles Healthcare System, West Los Angeles, CA
  More Information

Responsible Party: VA Office of Research and Development Identifier: NCT00105365     History of Changes
Other Study ID Numbers: A3120-P
Study First Received: March 11, 2005
Last Updated: October 20, 2015

Keywords provided by VA Office of Research and Development:
lateral wedge inserts
shoe inserts

Additional relevant MeSH terms:
Osteoarthritis, Knee
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases processed this record on August 18, 2017