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510(k) Data Aggregation

    K Number
    K221725
    Date Cleared
    2023-01-20

    (220 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    Advanced MyHip Planner

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The MyHip Planner software is intended for image processing and preoperative planning of acetabular cup and femoral stem positioning for Total Hip Arthroplasty (THA). The user is assisted in producing a preoperative plan, making decisions based on the leg offsets, the patient's potential impingement and, optionally, the spino-pelvic interaction. Through the software, the user can request 3D Printed Patient Specific Bone Models not intended for dragnostic use, but only intended for a physical representation of the 3D anatomical models visualized in the software. The 3D Printed Patient Specific Bone Models are provided non-sterile.

    Device Description

    The MyHip Planner is a software whose output is a patient-specific preoperative plan based on CT scans and aimed at evaluating the effects of different device choices and positioning options on the patient's hip joint biomechanics in terms of leg length and offset. It is intended to be used in Primary Hip Arthroplasty and it is compatible with Windows and Mac OS operating system. The subject Advanced version of the MyHip Planner additionally allows to evaluate patient's spinopelvic deformities and pelvic tilt starting from preoperative X-ray images, to help the surgeon to understand the implications of spinopelvic mobility on THA stability and optimize implant components orientation. Through the software, the user can request non-sterile 3D Printed Patient Specific Bone Models intended to be used as an additional visual reference of the patients' specific anatomy.

    AI/ML Overview

    The Medacta International S.A. Advanced MyHip Planner (K221725) is a software intended for image processing and preoperative planning of acetabular cup and femoral stem positioning for Total Hip Arthroplasty (THA). The software assists users in producing a preoperative plan, making decisions based on leg offsets, potential impingement, and optionally, spino-pelvic interaction. It also allows users to request 3D Printed Patient Specific Bone Models (non-sterile, not for diagnostic use, but for physical representation of 3D anatomical models).

    Here's an analysis of the acceptance criteria and study data provided:

    1. Table of Acceptance Criteria and Reported Device Performance

    The provided document does not explicitly present a table of acceptance criteria for specific performance metrics (e.g., accuracy, precision) of the Advanced MyHip Planner software. However, it states that "Software verification and validation including segmentation validation" was conducted, and "[n]o statistical divergence between the algorithm and the manual segmentation has been revealed by an analysis of the automatic segmentation and landmark picking performance on a two-sided students t-distribution."

    Based on this, an inferred table might look like this, with the understanding that specific numerical acceptance criteria (e.g., within X mm or degrees of ground truth) are not explicitly detailed:

    Acceptance Criteria (Inferred)Reported Device Performance
    Segmentation Accuracy: Robust and accurate automatic segmentation of anatomical structures relevant for THA planning, spino-pelvic evaluation, and 3D bone model generation."No statistical divergence between the algorithm and the manual segmentation has been revealed by an analysis of the automatic segmentation and landmark picking performance on a two-sided students t-distribution." This suggests that the automated segmentation and landmark identification are statistically comparable to manual methods.
    Landmark Picking Accuracy: Accurate automatic identification of anatomical landmarks crucial for preoperative planning measurements (cup/stem positioning, ROM, spino-pelvic evaluation)."No statistical divergence between the algorithm and the manual segmentation has been revealed by an analysis of the automatic segmentation and landmark picking performance on a two-sided students t-distribution." This indicates the automated landmark picking is statistically comparable to manual methods.
    Functionality: Correct operation of all software features, including image upload, segmentation, planning tools, spino-pelvic evaluation, and 3D bone model request."Based on the risk analysis, verification activities were conducted to written protocols." This typically implies testing of all functional requirements.

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

    The document does not explicitly state the sample size used for the test set. It mentions "an analysis of the automatic segmentation and landmark picking performance," but the number of cases or images included in this analysis is not provided.

    The data provenance (e.g., country of origin, retrospective or prospective) for the test set is also not specified.

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

    The document refers to "manual segmentation" as a comparison point for the algorithm's performance. However, it does not specify the number of experts who performed this manual segmentation or landmark picking, nor does it explicitly detail their qualifications (e.g., radiologist with X years of experience, orthopedic surgeon).

    4. Adjudication Method for the Test Set

    The document refers to a "two-sided students t-distribution" analysis to compare algorithm performance with manual segmentation. This implies a statistical comparison rather than a formal adjudication process involving multiple human readers to resolve discrepancies. Therefore, an explicit adjudication method like 2+1 or 3+1 is not mentioned. The "manual segmentation" serves as the reference, suggesting a single ground truth from a human expert or a pre-established "gold standard" of manual interaction.

    5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study was Done

    The document explicitly states: "No clinical studies were conducted." Therefore, a Multi-Reader Multi-Case (MRMC) comparative effectiveness study to evaluate human reader improvement with AI assistance was not performed.

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

    The performance data section mentions "Software verification and validation including segmentation validation" and "an analysis of the automatic segmentation and landmark picking performance." This indicates that standalone performance evaluation (algorithm only) of the segmentation and landmark picking functionalities was performed. The comparison was against "manual segmentation" which serves as the independent reference for the algorithm's output.

    7. The Type of Ground Truth Used

    The ground truth for the verification and validation activities, specifically for segmentation and landmark picking, appears to be expert consensus through "manual segmentation" and "manual landmark picking." The document uses these manual methods as the reference against which the algorithm's performance was compared. There is no mention of pathology or outcomes data being used for ground truth for these specific performance evaluations.

    8. The Sample Size for the Training Set

    The document does not specify the sample size used for the training set for the Advanced MyHip Planner software.

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

    The document does not describe how the ground truth for the training set was established. While it mentions comparison to manual segmentation for validation, it does not elaborate on the process or sources of ground truth used during the development and training phases of the algorithm.

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    K Number
    K200350
    Date Cleared
    2020-11-04

    (266 days)

    Product Code
    Regulation Number
    892.2050
    Reference & Predicate Devices
    Why did this record match?
    Device Name :

    MyHip Planner & Verifier

    AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP AuthorizedThirdpartyExpeditedreview
    Intended Use

    The MyHip Planner software is intended for image processing and pre-operative planning of acetabular cup and femoral stem positioning for Total Hip Arthroplasty (THA). The device assists the user in assessing potential leg length and offset differences as well as potential range of motion impingement.

    The MyHip Verifier software is intended to assist in the intra-operative evaluation of leg length and offset differences as well as acetabular cup positioning for anterior approach Total Hip Arthroplasty when the patient is positioned supine.

    Device Description

    The MyHip Planner is a software whose output is a patient-specific preoperative plan based on CT scans and aimed at evaluating the effects of different devices and positioning options on the patient's hip joint biomechanics in terms of leg length and offset.

    The MyHip Verifier is a software whose output is an intra-surgical numerical evaluation of the implant positioning based on fluoroscopy and aimed at evaluating the effects in terms of leg length and offset of cup and stem positioning.

    Both software are intended to be used in Primary Hip Arthroplasty and they are compatible with Windows and Mac OS operating system. MyHip Verifier is also compatible with Ubuntu operating system.

    AI/ML Overview

    The provided text describes the MyHip Planner & Verifier device and its regulatory submission (K200350). However, the information regarding specific acceptance criteria for performance, detailed study results proving the device meets these criteria, sample sizes for test and training sets, the number and qualifications of experts, adjudication methods, MRMC studies, or the type of ground truth beyond general "validation" and "verification" is not explicitly present in this document.

    The document states:

    • "Based on the risk analysis, software verification and validation were conducted according to written protocols with defined acceptance criteria."
    • "The following tests are being provided in support of a substantial equivalence determination: MyHip Planner software verification and validation; MyHip Planner validation through retrospective analysis; MyHip Verifier software verification and validation; MyHip Verifier validation through in-vitro and cadaver testing."
    • "No clinical studies were conducted."

    This indicates that some performance data was generated to support the substantial equivalence claim, but the detailed breakdown requested in the prompt (specific acceptance criteria, reported performance, sample sizes, expert details, etc.) is not included in the provided FDA 510(k) summary. The document focuses on regulatory aspects and comparison to predicate devices, not the granular details of the performance study itself.

    Therefore, I cannot fully answer your request based solely on the provided text. The information requested would typically be found in detailed study reports submitted to the FDA, which are not part of this 510(k) summary document.

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