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Completed

NCT Number: NCT02075931

Collaborative-care Intervention to Promote Physical Activity After Total Knee Arthroplasty

The investigators have learned that knee replacement patients are not more physically active after surgery. This is true even though their pain is less compared to before surgery. This low level of physical activity is not healthy. It can increase the chances of weight gain, which can create other issues. It can also lessen physical function. Some studies have looked at physical activity feedback systems to increase how active people are. Studies have investigated face to face patient group meetings for this,too. These systems and meetings can increase physical activity. The investigators will study the effects of a physical activity monitors with group meetings after knee replacement. The investigators hypothesize that physical activity levels and physical function will increase. The investigators goal is to help knee replacement patients lead healthier lives and maintain or enhance their physical function.

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Key information

Conditions

Osteoarthritis Arthritis Joint Diseases Musculoskeletal Diseases Rheumatic Diseases

Age range

50 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Colorado School of Medicine

Aurora, Colorado, 80045, United States

About this study

More than 650,000 total knee arthroplasties (TKAs) are performed annually to alleviate pain and disability associated with osteoarthritis (OA); a chronic, degenerative condition that compromises the quality of life of 37% of adults over age 60. With the aging of the population, an estimated 3.5 million TKAs will be performed annually by 2030. Despite improvements in pain and self-reported function, physical activity after TKA remains at pre-operative, sedentary levels (<5,000 steps/day). Physical activity in TKA confers powerful protective effects against common post-surgical sequelae including increased weight gain (mean=6.4 kg, 2 years post TKA), decreased functional performance, increased risk/progression of co-morbid conditions (e.g. type 2 diabetes mellitus, cardiovascular disease), and progression of knee and hip osteoarthritis which may necessitate additional joint replacement in the contralateral limb. An intervention aimed at improved self-management of physical activity may aid patients in overcoming habitual lifestyle patterns of low physical activity secondary to knee pain prior to TKA.

Recent investigations on the effects of real-time, user-friendly, electronic physical activity feedback (PAF) systems and face-to-face (FTF) patient group meetings aimed to promote self-management of physical activity suggest that such interventions can successfully increase physical activity. Therefore, the investigators propose a randomized, controlled trial to assess efficacy and feasibility of a physical activity intervention combined with FTF group meetings (PAF+FTF) initiated within one month of patients' discharge from outpatient rehabilitation for TKA compared to a control group receiving standard care (CON). This type of intervention is surprisingly novel to this patient population and is not common practice in rehabilitation following TKA.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • undergone unilateral total knee arthroplasty

Exclusion criteria

  • severe contralateral leg osteoarthritis (>4/10 with stair climbing)
  • unstable orthopaedic condition that limits function
  • neurological conditions that affect muscle function
  • vascular or cardiac conditions that limit function

Treatment and study plan

Physical activity feedback with group meetings

Other

Physical activity feedback

Control

Other

No intervention

Primary outcomes

  1. Change in Physical activity

    Time frame: Change from baseline to immediately post-12 week intervention

    Daily step and activity counts

Secondary outcomes

  1. Change in Functional performance

    Time frame: Change from baseline to immediately post-12 week intervention

    Six-minute walk test, timed up-and-go, 10 meter walk test

  2. Change in Self-reported physical function

    Time frame: Change from baseline to immediately post-12 week intervention

    Knee injury and Osteoarthritis Outcome Score, Physical Activity Scale for the Elderly

Sponsors and collaborators

Lead sponsor

University of Colorado, Denver

Other

Registry information

Important dates

Study start
2014
Primary completion
2018
Study completion
2018
First posted
Mar 3, 2014
Registry last updated
Feb 23, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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