JAS GL Knee Extension

The JAS GL Knee Extension (international market only) offers a no-compromise approach to Range of Motion (ROM) therapy — 48° flexion, 36° hyperextension — in a lightweight, easy-fit device reinforced for additional durability. JAS’ innovative Motion Arc™ design, combined with infinitely adjustable ROM, assures precise end-range stretch throughout the entire treatment session. Maximal Total End Range Time (TERT) is achieved for optimal therapeutic benefit.

  • 48° Flexion
  • 36° Hyperextension

The patient-controlled JAS protocol allows for pain-free therapy, virtually eliminating muscle guarding and assuring excellent compliance.

Safe and Effective ROM Therapy Following

  • Total Knee Replacement
  • Ligament Repairs (ACL, PCL)
  • Meniscectomy
  • Post-Tibial/Femur Fractures
  • Arthrofibrosis
  • Burns

JAS GL is for international distribution only.


  • Lightweight, easy to apply and simple to use
  • Bi-directional ROM provided in all devices
  • Fulcrum positioned away from the joint
  • Patient-controlled, infinitely adjustable ROM
  • Precision fit


  • Promotes excellent patient compliance
  • Saves cost; full-range stress relaxation therapy in one device
  • Eliminates joint compression and pain
  • Assures precise and pain-free end-range stretch; eliminates muscle guarding
  • Dramatically reduced treatment time ensures high patient compliance
  • Optimal comfort and accurate stretch eliminates risk of skin breakdown