Knee

Recreate the proper body alignment and force used by physical therapists to increase knee motion.

Knee Flexionater®

After knee injury or surgery, the inability to achieve motion similar to the uninjured knee is the biggest risk factor for later complications. The high-intensity Ermi Knee Flexionater helps restore motion, reducing the occurrence of reoperation and other complications.

The Flexionater can generate loads from zero to several hundred foot-pounds of torque to accommodate the specific mechanical characteristics of scar tissue found in each patient. Studies have shown success rates of more than 90 percent in patients who would otherwise have returned for surgical manipulation of flexion loss.

Common Indications

  • TKA
  • ACL reconstruction
  • Meniscal repair
  • Tibia fractures
  • Femur fractures
  • Patella fractures
  • Quad tendon repair

Device Overview

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In one study, patients gained an average of 25 degrees knee flexion

“The Flexionater really helped me with getting my knee to bend. It was a great help having a device in my home to use that allowed me to move at my own pace but get the therapy I needed.”

Phil M. Patient

Knee Extensionater®

The inability to straighten your knee can result in not only knee pain, but pain and dysfunction in your other knee, hips, or lower back. The high-intensity Ermi Knee Extensionater allows you to recreate the proper body alignment and force used by physical therapists to increase knee motion and get back to normal function faster.

The Knee Extensionater is a portable, easy-to-use device that uses patented pneumatic air bladder technology to create overpressure to treat motion loss. The Knee Flexionater can generate loads from zero to several hundred foot-pounds of torque to accommodate the specific scar tissue characteristics found in each patient.

Common Indications

  • Patella Tendon Repairs
  • Patella Fractures
  • Tibial Plateau Fractures
  • Total Knee Arthroplasty/Replacement
  • Quadriceps Repairs
  • Knee Arthroscopies

Device Overview

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“I had full extension of my knee after 2 months and I am thrilled…I would highly recommend this to anyone. It’s simple, can be used while watching TV. Thank you for this wonderful product!”

Jane S. Patient

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