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CompletedNCT05104008Updated Nov 2, 2021

Effectiveness of Lateral Wedge Insole on Knee Osteoarthritis Outcomes in Pakistani Population

An interventional study of Lateral wedge insoles with home exercises group(Group 1) and Traditional physiotherapy with home exercises group (Group 2) in Medial Compartment Knee Osteoarthritis, sponsored by Isra University. Completed at 1 site in Pakistan. Open to participants aged 40 Years to 70 Years. Per ClinicalTrials.gov, last updated 2021-11-02.

Sponsored by Isra University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
40 Years to 70 Years
Sex
All
01

Study summary

Osteoarthritis (OA) is a persistent joint disorder, which normally affects the weight bearing joints especially knee joint. Lateral wedge insole is one such approach suggested by professionals to manage the knee osteoarthritis.Effectiveness of lateral wedge insoles (LWI) group (n=20), and conventional physical therapy (CPT) group (n=20) with home exercises as baseline treatment were assessed on Urdu version of Knee Injury and Osteoarthritis Outcome Score scale (KOOS).

Read the detailed description

A total of n=104 patients were recruited through the non-probability convenience sampling technique and were thus evaluated for the inclusion criteria. Of which, n=40 participants fulfilled the inclusion criteria. Participants were randomly divided through the sealed envelope method in two groups; lateral wedge insoles with home exercises group (n=20), and traditional physiotherapy with home exercises group (n=20). The data was collected through a general demographic questionnaire and Knee injury and Osteoarthritis Outcome Score (KOOS) in Urdu to determine the severity of pain, stiffness, functional activities, recreational activities and Quality of life to promote functional independence in osteoarthritic patients.[20] The level of significance was set at p\<0.05. Statistical Package for the Social Sciences (SPSS) ver. 23 was used for data analysis.As the assumption of the parametric test was met, mixed ANOVA was used for the interaction effect of between-subject factor (group) and within-subject factor (time). With-in group analysis and one way ANOVA was used for between-group comparisons to determine the effect size (ɳp2).

02

Conditions studied

  • Medial Compartment Knee Osteoarthritis

Keywords

  • Knee osteoarthritis, functional independence, musculoskeletal physiotherapy, orthotics, quality of life.
03

Who can participate

Ages eligible
40 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Patients with the age criteria of 40-70 years, and who had a history of knee OA were included in the study.

Exclusion criteria

Exclusion Criteria:

  • Patients had knee OA due to trauma or any pathology, multiple fractures, or had a medical condition due to which rehabilitation wasn't possible, and not willing to participate in the clinical trials were excluded from the study.
04

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
40 participants (actual)

Study arms

  • Active comparator
    Lateral wedge insoles with home exercises group(Group 1)

    In this group, participants were advised to use lateral wedge insole during walking and long-standing. Non customized full-length lateral wedge insoles of 7mm made of silicon material with 5 degrees angulation (because greater wedging is associated with foot discomfort) was used. Full-length wedge extends under the lesser metatarsal heads which increases the lever arm for rearfoot eversion and thus can prevent subtalar joint rotation. The evaluations were performed every week till fourth week.

    Other: Lateral wedge insoles with home exercises group(Group 1)

  • Active comparator
    Traditional physiotherapy with home exercises group (Group 2)

    Each participant received 40-45 minutes long session, started in lying position. The therapeutic low-intensity pulsed ultrasound (US) was used for 7 minutes with the frequency of 1 MHz, Spatial Average Intensity was 0.2 W /cm2, pulsed duty cycle 20%, therapeutic dose was 112.5 J/cm2 with fixed application on the medial side of the knee joint. The model of US was Unit Intelect Mobile, (Chattanooga Inc). After US therapy passive stretching of calf, hamstring, quadriceps, hip flexors, adductors \& abductor s was done, which was followed by the manual strengthening exercises and strengthening with quadriceps bench. The session was repeated thrice a week and 12 sessions per month. The home program was guided in both groups including avoiding low sitting, cross leg sitting along with Isometrics of quadriceps atleast 3 times a day, with 5-10 seconds hold of each contraction.

    Other: Traditional physiotherapy with home exercises group (Group 2)

Interventions

  • OtherLateral wedge insoles with home exercises group(Group 1)

    In this group, participants were advised to use lateral wedge insole during walking and long-standing. Non customized full-length lateral wedge insoles of 7mm made of silicon material with 5 degrees angulation (because greater wedging is associated with foot discomfort) was used. Full-length wedge extends under the lesser metatarsal heads which increases the lever arm for rearfoot eversion and thus can prevent subtalar joint rotation. The evaluations were performed every week till fourth week.

  • OtherTraditional physiotherapy with home exercises group (Group 2)

    Each participant received 40-45 minutes long session, started in lying position. The therapeutic low-intensity pulsed ultrasound (US) was used for 7 minutes with the frequency of 1 MHz, Spatial Average Intensity was 0.2 W /cm2, pulsed duty cycle 20%, therapeutic dose was 112.5 J/cm2 with fixed application on the medial side of the knee joint. The model of US was Unit Intelect Mobile, (Chattanooga Inc). After US therapy passive stretching of calf, hamstring, quadriceps, hip flexors, adductors \& abductor s was done, which was followed by the manual strengthening exercises and strengthening with quadriceps bench. The session was repeated thrice a week and 12 sessions per month. The home program was guided in both groups including avoiding low sitting, cross leg sitting along with Isometrics of quadriceps atleast 3 times a day, with 5-10 seconds hold of each contraction.

05

What researchers measure

Primary outcomes

  1. Knee injury and osteoarthritis outcome pain score

    Pain associated with daily tasks is measured through Knee injury and osteoarthritis outcome pain score with categories as 'None' for no pain and 'Extreme' for maximum pain value.

    Time frame: Upto 4 weeks

  2. Knee injury and osteoarthritis outcome stiffness score

    It is measured through Knee injury and osteoarthritis outcome stiffness score with categories as 'None' for no stiffness and 'Extreme' for maximum stiffness.

    Time frame: Upto 4 weeks

  3. Knee injury and osteoarthritis outcome functional status score

    Degree of difficulty in performing daily tasks associated with knee joint is measured through Knee injury and osteoarthritis outcome functional status score with categories as 'None' for no difficulty in tasks and 'Extreme' for maximum difficulty in performing tasks. .

    Time frame: Upto 4 weeks

  4. Knee injury and osteoarthritis outcome quality of life score

    Quality of life regarding knee joint disease is measured through Knee injury and osteoarthritis outcome quality of life score with categories as according to patient's satisfaction.

    Time frame: Upto 4 weeks

06

Study locations

1 site
  • Rabbiya Riaz
    Islamabad, Punjab, Pakistan
07

References and documents

Individual participant data

Plan to share: Yes

Supporting information: Study protocol, Sap, Icf, Csr

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT05104008
Lead sponsor
Isra University
Responsible party
Rabbiya Riaz (Physiotherapist, Isra University) — Principal investigator
First posted
Nov 2, 2021
Start date
Sep 15, 2020
Primary completion
Jun 20, 2021
Completion
Jun 20, 2021
Last update
Nov 2, 2021

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
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