M.4®s OA

4-point knee orthosis

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M.4s OA

4-point knee orthosis for control of anterior and posterior tibial translation. 3-point off-loader for varus or valgus pressure relief

Indications

  • conservative treatment of complex ligament instability, particularly in combination with unilateral osteoarthritis
  • conservative treatment of advanced unilateral osteoarthritis
  • post-operative pressure relief and compartmental protection after fractures of the tibial head, cartilage surgery, meniscus refixation, correction osteotomy
  • instability of the cruciate ligaments with pressure relief of the medial or lateral compartment
  • for functional pre or post-operative care of knee instabilities

Mode of action

  • protection, stabilisation, pain relief and restoration of mobility
  • pressure relief of the medial or lateral joint compartment by the 3-point principle which off loads the affected compartment into a varus or valgus position
  • stabilisation of the knee joint by the 4-point principle to counteract knee instability, a cause of osteoarthritis
  • safeguards against hyper-extension and offers limitation of flexion and extension

Features

  • 'S' profile improves torsional stability whilst following natural alignment of femur and tibia
  • hinges proximal to knee joint allow precise off loading of the knee
  • polycentric hinges
  • anatomically premoulded frame
  • strong, low profile, light weight frame and hinge construction
  • numbered straps ensure a simple fastening sequence
  • air condyle pads with skin-grip system
  • excellent comfort with new soft-grip padding material
  • extension limitation at: 0°, 10°, 20°, 30°, 45°
    flexion limitation at: 0°, 10°, 20°, 30°, 45°, 60°, 75°, 90°, 120°
    immobilisation at: 0°, 10°, 20°, 30°, 45°
  • under sleeve and knee protector available