(20 days)
SPECTRUM® GV Bone Cement is indicated for the fixation of the REMEDY® & REMEDY SPECTRUM® GV Spacers, and for the fixation of prostheses to living bone in the second stage of a two-stage revision of a total joint arthroplasty after the initial infection has been cleared.
SPECTRUM® GV Bone Cement is a radiopaque, PMMA bone cement with gentamicin and vancomycin. The bone cement is single-use and provided sterile. SPECTRUM® GV Bone Cement is a traditional bone cement in that the liquid is contained in a vial and the powder in a sachet. The two components are mixed manually immediately before use. The device is protected from bacterial adhesion due to the presence of gentamicin and vancomycin.
This FDA 510(k) clearance letter is for a bone cement, not a medical device that utilizes AI or requires complex studies to demonstrate performance through acceptance criteria in the way you've described.
The document indicates that SPECTRUM® GV Bone Cement is substantially equivalent to a previously cleared predicate device (K231556), and therefore, extensive new studies to prove acceptance criteria in the context of device performance metrics (like sensitivity, specificity, or reader improvement with AI) were not required.
Here's why and what information is provided:
- Device Type: This is a Polymethylmethacrylate (PMMA) bone cement, a physical material used for fixation. It's not a diagnostic imaging device, a software as a medical device (SaMD), or an AI algorithm.
- Substantial Equivalence: The clearance is based on the device being "substantially equivalent" to a legally marketed predicate device. This means the FDA has determined it is as safe and effective as the predicate, often due to identical or very similar technological characteristics and intended use.
- No New Performance Data (for the requested criteria): The document explicitly states: "Non-clinical testing was not required as the subject device is identical to that of the predicate." This confirms that specific performance metrics, sample sizes for test sets, expert adjudication, or AI-related studies were not performed for this specific submission because the device itself hasn't changed.
Therefore, I cannot provide the detailed information requested in your prompt because the provided 510(k) letter does not contain the type of acceptance criteria and study analysis that would be relevant for an AI-powered diagnostic device. The questions about sensitivity, specificity, MRMC studies, ground truth establishment, and training/test set sizes are pertinent to AI/software device clearances, not to the material science and manufacturing consistency demonstrated for a bone cement via substantial equivalence.
§ 888.3027 Polymethylmethacrylate (PMMA) bone cement.
(a)
Identification. Polymethylmethacrylate (PMMA) bone cement is a device intended to be implanted that is made from methylmethacrylate, polymethylmethacrylate, esters of methacrylic acid, or copolymers containing polymethylmethacrylate and polystyrene. The device is intended for use in arthroplastic procedures of the hip, knee, and other joints for the fixation of polymer or metallic prosthetic implants to living bone.(b)
Classification. Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance Document: Polymethylmethacrylate (PMMA) Bone Cement.”