Bencox® Hip System Acetabular System Femoral Components
Lospa® Knee System Primary Replacement Revision Replacement
Lospa® IS™ Spinal Fixation System Screw System Cage System Hip Anatomy Disease & Injury Total Hip Replacement
Knee Anatomy Disease & Injury Total Knee Replacement
Spine Anatomy Disease & Injury Surgical Treatment
Shoulder Anatomy Disease & Injury Total Shoulder Replacement
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Lospa® Knee System

Primary Replacement.

Corentec’s Lospa Knee System for total knee replacement is available in nine sizes, each of which consists of femoral and tibial components. The femoral component features a wide radius with a posterior condyle thickness of 10 mm, balancing contact stress with bone conservation. The size of the anteroposterior box of the femoral component is comparable to other commercially available products. The single radius design of the femoral component provides ligament isometry and muscle force efficiency. Its deep, elongated and laterally-angled patellar groove allows for optimal patellar tracking. The tibial component’s 3° posterior slope helps prevent anterior cortex impingement. The polyethylene liner boasts a full peripheral capture snap-fit locking mechanism.

Design Info : Kinematic Ligament Safety


  • Shallow anterior flange


    : A more rounded femoral contour and a deepened patellar groove help deep flexion by reducing joint capsule overstuffing.


  • Single axis


    : Ligament isometry is achieved during 0°~90° flexion.


  • Raised anterior lateral flange, and deep and elongated curved patellar groove


    : Helps natural patellar movement.


    : Helps prevent patellar subluxation.


  • Cam and post engagement


    : Late engagement angle: 75°.


    : Avoids cam and post contact during walking.

    (avoids the swing phase)


  • Cam and post engagement


    : Late engagement angle: 75°.


    : Avoids cam and post contact during walking.

    (avoids the swing phase)

Design Info : Wear Resistance


  • Spherical condyle and constrained liner design


    : Articular surface with high conformity.


    : Increased contact area and/for increased stability.


    : Reduced PE wear.


  • Rotated articular surface:

    dissipates torsional load


    : Extension ± 20°, Cam-post contact ± 12°.

Design Info : Deep Flexion


  • 10mm posterior cutting


    : Large Wide posterior radius.


  • Proximal radius of posterior condyle


    : Reduces proximal condyle length


    : Increases leverage effect


  • Maximizing Flexion After Total Knee Arthroplasty


  • Maximizing Flexion After Total Knee Arthroplasty


  • Posterior rollback


    : Continues to increase after the cam contacts the tibial post at 75°


    : The femoral component travels 8~17mm according to the implant size


  • Posterior rollback


    : Continues to increase after the cam contacts the tibial post at 75°


    : The femoral component travels 8~17mm according to the implant size

Resource & Reference