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510(k) Data Aggregation

    K Number
    K110400
    Date Cleared
    2011-09-30

    (231 days)

    Product Code
    Regulation Number
    888.3330
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    TAPERLOC COMPLETE MICROPLASTY STEM

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use
    1. Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis.
    2. Rheumatoid arthritis
    3. Correction of functional deformity
    4. Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques.
    5. Revision procedures where other treatment or devices have failed.
      Porous coated components are intended for uncemented biological fixation.
    Device Description

    The TaperIoc® Complete Microplasty Stems are an update to the existing TaperIoc® Microplasty Stems and are designed to replace the patient's natural hip, femoral neck, and head, due to disease or accident. The Taperloc® Complete Microplasty Stems will combine the design features of the Taperioc® Complete full-length stems to the shortened design of the existing Taperloc® Microplasty Stems. These design features include: a reduced neck angle, shorter/longer neck lengths, reduced Type 1 taper geometry with neck flats, polished neck, standard and high offset versions, two distal profiles, and an updated insertion hole. Stem sizes ranges are within the ranges of legally marketed predicates. The substrate material is Ti-6AI-AV, ASTM F-136. The proximal intramedullary region is sprayed with porous plasma spray.

    AI/ML Overview

    Here's an analysis of the provided text regarding the acceptance criteria and the study that proves the device meets them:

    1. Table of Acceptance Criteria and Reported Device Performance

    Acceptance CriteriaReported Device Performance
    Distal Stem Fatigue:
    ISO 7206-4:2002, ASTM F2068-03Passed for 5 million cycles at 67 lbs to 517 lbs (for 6 worst-case stems)
    Proximal Stem Fatigue:
    ISO 7206-6:1992Passed for 10 million cycles at 120 lbs (for 6 worst-case stems)
    Range of Motion Analysis:
    ISO 21535:2009Passed its simulation
    PPS Plasma Sprayed Coating Characterization:Meets the regulatory definition of porous coating for the hip construct per 21 CFR 888.3358.

    2. Sample Size Used for the Test Set and Data Provenance

    • Sample Size for Mechanical Testing: 6 worst-case stems were used for both distal and proximal stem fatigue testing. The sample size for the Range of Motion analysis is not explicitly stated but implies at least one simulation.
    • Data Provenance: The data is from non-clinical testing performed by Biomet Manufacturing Corp. The country of origin is not explicitly stated, but the company is based in Warsaw, IN, USA. The data is prospective in the sense that it was generated for the purpose of this 510(k) submission, not gathered retrospectively from existing patient data.

    3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts

    This section is not applicable as the studies described are non-clinical mechanical engineering tests, not studies requiring human expert assessment of medical images or patient outcomes. The "ground truth" for these tests is defined by the international standards (e.g., ISO, ASTM) and the specified load/cycle requirements.

    4. Adjudication Method for the Test Set

    This section is not applicable for the same reasons as above. There were no human expert assessments requiring adjudication. The tests were objective mechanical measurements against predefined pass/fail criteria.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

    No, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study was not done. The document explicitly states: "Clinical Testing: None provided as a basis for substantial equivalence." This device is a hip implant, and the testing described is mechanical, not related to AI-assisted human reading.

    6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done

    No, a standalone algorithm performance study was not done. This device is a physical medical implant, not an algorithm or AI system.

    7. The Type of Ground Truth Used

    The ground truth used for these non-clinical tests was based on internationally recognized engineering standards and specifications. Specifically:

    • Distal Stem Fatigue: ISO 7206-4:2002, ASTM F2068-03
    • Proximal Stem Fatigue: ISO 7206-6:1992
    • Range of Motion Analysis: ISO 21535:2009
    • PPS Plasma Sprayed Coating: "Guidance Document for Testing Orthopedic Implants with Modified Metallic Surfaces Apposing Bone or Bone Cement" and 21 CFR 888.3358.

    The "ground truth" is therefore adherence to these established mechanical performance and material characterization standards.

    8. The Sample Size for the Training Set

    This section is not applicable. There is no "training set" as this is not an AI/machine learning device. The number of samples for mechanical testing (6 worst-case stems) served as the test set.

    9. How the Ground Truth for the Training Set Was Established

    This section is not applicable for the same reason as above. There is no training set mentioned or implied.

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