Effectiveness of Insoles Provided to Patients With Diabetes. A Longitudinal Randomized Controlled Study in Gothenburg

Sponsor
Sahlgrenska University Hospital, Sweden (Other)
Overall Status
Completed
CT.gov ID
NCT01663519
Collaborator
(none)
114
1
3
54
2.1

Study Details

Study Description

Brief Summary

Introduction: Insoles and shoes are frequently prescribed to prevent foot ulcers in patients at risk of diabetes. A combination of neuropathy and foot deformities raises the risk from 1% to between 4-7% according to the Swedish National Board of Health and Welfare, Guidelines Diabetes Care 2010. Preventative care, which includes foot care, annual inspection of the feet, education and prescription of insoles in combination with well fitting shoes are supposed to decrease the risk of ulcers and prevent amputation. Further research is, however, needed to evaluate the effectiveness of these commonly prescribed insoles. The aim of this study is to compare three different types of insoles with respect to pressure distribution. Every 6 months follow-up is assessed until 24 months is reached.

Condition or Disease Intervention/Treatment Phase
  • Other: Custom made insoles 35 shore
  • Other: Prefabricated insoles
  • Other: 55 shore Custom made insole
N/A

Detailed Description

Patients included in the study were randomized into 3 different groups. Group number 1 and 2 got custom made insoles out of EVA (Ethyl Vinyl Acetate) with different hardness 35 and 55 shore respectively. Group nr 3 got prefabricated insole with support of the medial arch and in the forefoot. The top layer was covered with a 2 mm cushioned material, 25 shore, made out of microcellular urethane. All patients were recommended to wear good walking shoes with a semi rigid outer sole and stable heel counter. One and the same technician made the casting and fabricated the insoles as well as delivered the devices. Deliverance occured 2-3 weeks after the first visit.

At deliverance base line measurement was assessed.

Study Design

Study Type:
Interventional
Actual Enrollment :
114 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Prevention
Official Title:
Effectiveness of Insoles Provided to Diabetic Patients at Risk to Develop Ulcers
Study Start Date :
Jan 1, 2008
Actual Primary Completion Date :
Feb 1, 2012
Actual Study Completion Date :
Jul 1, 2012

Arms and Interventions

Arm Intervention/Treatment
Experimental: Prefabricated insoles

Prefabricated insoles with support in medial arch and metatarsal pad. A 2 mm top layer of cushioned material.

Other: Prefabricated insoles
Prefabricated insoles
Other Names:
  • Bauerfeind GloboTec® 312750501400
  • Experimental: Custom made insoles 35 shore

    Custom made insoles formed over an individual cast positive. 35 shore of hardness in material Ethyl Vinyl Acetate

    Other: Custom made insoles 35 shore
    Insoles in Ethyl Vinyl Acetate (EVA) manufactured over an individual positive cast.

    Experimental: 55 shore Custom made insoles

    Custom made insoles formed over an individual cast positive. 55 shore of hardness in material Ethyl Vinyl Acetate

    Other: 55 shore Custom made insole
    Insoles in Ethyl Vinyl Acetate (EVA) manufactured over an individual positive cast.

    Outcome Measures

    Primary Outcome Measures

    1. In shoe plantar pressure measurement [up to 24 months]

    Secondary Outcome Measures

    1. Gait analysis [every 6 months until 24 months is reached]

      Optical tracking system with skin-mounted markers

    Other Outcome Measures

    1. Health related quality of life [every 6 months until 24 months is reached]

    2. Cost and cost analysis [24 month]

      Calculation of costs for orthopaedic appliance in studied population

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion criteria:
    • First time visitor to Dept of Prosthetics & Orthotics

    • Diabetes

    • Age > 18 year

    • Be able to walk independently

    • Be able to read and understand Swedish

    Exclusion Criteria:
    • Ulcers

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Lundbergs Laboratory for Orthopaedic Research Gothenburg Sweden 413 45

    Sponsors and Collaborators

    • Sahlgrenska University Hospital, Sweden

    Investigators

    • Study Chair: Roy Tranberg, PhD, Lundbergs laboratory for Orthopaedic Research

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Ulla Hellstrand Tang, Certified Prosthetist & Orthotist, Sahlgrenska University Hospital, Sweden
    ClinicalTrials.gov Identifier:
    NCT01663519
    Other Study ID Numbers:
    • VGFOUGSB-9725 Regional R&D
    First Posted:
    Aug 13, 2012
    Last Update Posted:
    Jul 29, 2019
    Last Verified:
    Jul 1, 2019
    Keywords provided by Ulla Hellstrand Tang, Certified Prosthetist & Orthotist, Sahlgrenska University Hospital, Sweden
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Jul 29, 2019