Effects of 3D-printed on Lower Extremity Biomechanics in Individuals With Knee Osteoarthritis

National Yang Ming Chiao Tung University

Status: Completed

Conditions: Medial Knee Osteoarthritis

Treatments: Device: 5 degrees lateral wedge insoles; Device: 3D-printed foot orthoses

Study type: Interventional

Funder types: Other

Identifiers

NCT03843684

108DN07

Details and patient eligibility

About

The purposes of this study are: (1) to determine the kinematics, kinetics, and muscle co-activation ratio of level walking and stair negotiation under three different conditions (shoes only, shoes embedded 3D printed insoles, and shoes embedded 5-degree lateral wedges), (2) to build a detailed patient-specific knee model via MR images and musculoskeletal model, then, evaluate the compressive forces acting on the medial aspect of the knee during level walking and stair negotiation.

Full description

This study is a cross-sectional study with patients serving as their own control. The investigators will recruit 20 patients with knee osteoarthritis. Using motion capture system, force plates, wireless EMG to capture the motion data of patients during walking and stair negotiation in each condition.

Enrollment: 15 patients

Sex: All

Ages: 50 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Medial knee OA (Kellgren-Lawrence grade I, II or III) according to clinical and radiological criteria of the American College of Rheumatology
• Aged from 50 to 70 years

Exclusion criteria

• Neuromuscular illness (e.g., Parkinson disease, Neuropathy)
• Predominant lateral or patella-femoral OA
• Previous of planned hip or knee replacement
• Hip or ankle arthritis
• Rheumatoid arthritis
• Unable to walk without a cane or walker
• Unable to walk up and down the stairs

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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15 participants in 1 patient group

Knee osteoarthritis patients

Experimental group

Treatment:

Device: 5 degrees lateral wedge insoles

Device: 3D-printed foot orthoses