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three-compartment knee prosthesis / mobile-bearing
GMK sphere

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Characteristics

  • Type:

    three-compartment

  • Tibial bearing:

    mobile-bearing

Description

Patient expectations are not as well fulfilled by TKA as by total hip replacement with fewer knee patients achieving a “forgotten joint” replacement. Studies show that around 20% of TKA patients are not satisfied[1, 2, 3]. Excessive A/P motion may result in anterior knee pain and continued swelling. In many P/S designs, the stabilising mechanism only engages after 70-80° of flexion leaving the knee vulnerable to A/P instability during the most commonly encountered functional activities[4].