About this trial
Prospective, multicenter, two-arm, 2:1 randomized controlled trial (RCT) comparing the benefits in subjects with medial knee osteoarthritis who are treated with either the MISHA Knee System or with non-surgical treatment.
This is the first randomized head-to-head study comparing outcomes from subjects treated with the MISHA Knee System.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Activity exacerbated knee pain isolated to the medial compartment and not global in nature
WOMAC pain ≥ 40
Failed to find relief in non-surgical treatment modalities
Disqualifiers
Large medial osteophyte(s) or considerable extruded meniscus that may interfere with the placement or function of the device
Poor bone quality (e.g., bony erosion, osteopenia, osteoporosis)
Ligamentous instability
Active or recent knee infection
Trial design
Parallel
Treatments tested in this trial
MISHA Knee System
DeviceThe MISHA Knee System is an extra-capsular knee implant intended to reduce loads on the medial knee. The implant consists of an absorber located between bases fixed with locking screws to the medial cortices of the distal femur and proximal tibia. The implant shares the load with the medial knee joint and articulating ball-and-sockets allow the device to accommodate the natural motions of the knee.
Non-Surgical Treatment
Other interventionThe non-surgical arm includes assist devices, physical conditioning, prescription or nonprescription medications, creams, vitamins, or supplements, intra-articular Injections, physical therapy and weight loss.
Treatment groups
Trial outcomes
Primary outcomes
WOMAC Pain at 6 Months
Improvement in WOMAC Pain in the MISHA arm compared to the non-surgical arm measured on the initial cohort who complete the 6-month follow-up visit
Secondary outcomes
WOMAC Function at 6 Months
Improvement in WOMAC Function in the MISHA arm to the non-surgical arm measured on the fully enrolled population who complete the 6-month follow-up visit