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China Suppliers Factory HRSK Rotating Hinge Knee System - Optimized Load Distribution & Modular Design for Bone Defects
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China Suppliers Factory HRSK Rotating Hinge Knee System - Optimized Load Distribution & Modular Design for Bone Defects

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● Optimized Load Distribution

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Design Inspired by Primary Prosthesis:
This advanced tibial implant efficiently supports 95% of the load, ensuring stability and facilitating natural load transfer for enhanced performance.

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● Enhanced Patellar Tracking

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Biomechanics in Line with Primary Prosthesis:
The design promotes familiar biomechanics, enabling seamless adaptation for patients and optimizing outcomes.

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● Modular Design for Addressing Bone Defects

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Compatible with JUST Knee System Augments:
Our solution effectively addresses severe bone defects, offering versatile reconstruction options tailored to diverse surgical needs.

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● Surgical Efficiency Streamlined

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Familiar Procedure as JUST Knee System:
This innovative approach minimizes bone loss while allowing the use of standard instruments, ensuring a streamlined workflow for surgeons.

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As a trusted product from leading suppliers in China, our factory focuses on delivering high-quality orthopedic solutions that meet the needs of healthcare professionals and their patients.

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    Product Detail

    Special Description
    Modular sleeves and polished surface

    Modular sleeves provide Intra-operative flexibility by accommodating bone defects of the Engh Type II and Type III.

    Highly polished upper surface reduces postoperative wear.

    Augments with 187 Specifications

    Augments with 187 Specifications

    Are available for patients with inadequate bone stock.

    Tibial Augment

    Tibial Augment

    Trochlear groove design

    Deepened & Extended Trochlear Groove

    Reduces patellar force throughout the range of motion.

    Alleviates patellar subluxation and dislocation.

    Hinge mechanism of modularity

    The Hinge Mechanism of Modularity

    Stress Transmission: Buffered, significantly reducing cement-bone interface loosening.

    Hinge Structure: Prevents direct contact between the metal hinge axis and the metal femoral condyle, minimizing wear.

    Load Distribution: Designed so that 95% of the load is borne by the tibia, aligning with primary prostheses load distribution.

    Tibiofemoral anastomosis design

    Design of the Tibiofemoral Anastomosis

    High Compatibility: Ensures direct contact between the femoral condyle and tibial insert throughout the entire range of flexion and extension.

    Damping Constraints: Provides constraint at extreme flexion/extension. During hyperextension, the anterior curvature of the HRSK contacts the tibial joint surface to prevent hyperextension impact.

    Special Instrumentation
    HRSK Femoral Condyle
    HRSK® Femoral Condyle
    Material Spec (mm) A/P (mm) M/L (mm)
    CoCrMo 2# R/L 57 61
    3# R/L 59 64
    4# R/L 61 66
    5# R/L 63 68
    6# R/L 66 71
    HRSK Tibial Bearing
    HRSK® Tibial Bearing (PS)
    Material Spec (mm) A/P (mm) M/L (mm)
    Germany UHMWPE 2# 14mm, 16mm, 18mm, 20mm, 22mm 41 63
    3# 14mm, 16mm, 18mm, 20mm, 22mm 43 67
    4# 14mm, 16mm, 18mm, 20mm, 22mm 46 63
    5# 14mm, 16mm, 18mm, 20mm, 22mm 48 67
    6# 14mm, 16mm, 18mm, 20mm, 22mm 51 79
    HRSK Tibial Tray
    HRSK® Tibial Tray
    Material Spec (mm) A/P (mm) M/L (mm)
    CoCrMo 2# 41 63
    3# 43 67
    4# 46 71
    5# 48 75
    6# 51 79
    Video Demonstration
    Technology Education
    Surgical Technique Manual Cover
    HRSK® Rotating Hinge Knee System Surgical Technique Manual
    Download PDF
    Frequently Asked Questions
    What clinical advantages do the modular sleeves in the HRSK® system provide?
    Modular sleeves offer exceptional intra-operative flexibility, allowing surgeons to effectively accommodate bone defects categorized under Engh Type II and Type III.
    How does the hinge mechanism minimize implant wear and loosening?
    The hinge mechanism buffers stress transmission, which significantly reduces the risk of cement-bone interface loosening. Additionally, the hinge structure avoids direct contact between the metal hinge axis and the metal femoral condyle, minimizing mechanical wear.
    How does the HRSK® Rotating Hinge Knee System protect against hyperextension?
    The highly compatible tibiofemoral joint surface provides damping constraints at extreme positions. During prosthetic hyperextension, the anterior curvature of the HRSK contacts the tibial joint surface, slightly separating the knee joint to prevent hyperextension impact.
    What is the benefit of the deepened and extended trochlear groove?
    This design feature reduces patellar force throughout the entire range of motion, helping to alleviate potential issues of patellar subluxation and dislocation.
    What materials are used for the key components of the HRSK® system?
    The Femoral Condyle and Tibial Tray are manufactured from high-durability CoCrMo (Cobalt-Chromium-Molybdenum) alloy, while the Tibial Bearing is made from premium German UHMWPE (Ultra-High-Molecular-Weight Polyethylene).

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