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BENCOX Mirabo Z Cup Cortinium of BENCOX Total Hip System is intended for cementless use in total hip arthroplasty in primary or revision surgery for the following conditions:

a. Non-inflammatory degenerative joint disease, such as avascular necrosis, osteoarthritis, traumatic arthritis

b. Inflammatory degenerative joint disease, such as rheumatoid arthritis

c. Treatment of non-union, femoral neck fracture, and trochantric fractures of the proximal femur with head involvement, unmanageable using other techniques

d. Patients with failed previous surgery where pain, deformity, or dysfunction persists

e. Revision of previously failed total hip arthroplasty

The BENCOX Mirabo Z Cup Cortinium is a porous coated non hemispherical outer shell made of Ti-6Al-4V alloy (ASTM F136) via machining processes and coated by pure titanium powder (ASTM F1580) through an additive manufacturing process. The device design allows for the cementless use of cross-linked polyethylene liners into the shell and incorporates screw holes for fixation.

The provided text is a 510(k) premarket notification for the BENCOX Mirabo Z Cup Cortinium. It describes the device, its intended use, and claims substantial equivalence to previously marketed predicate devices. However, it does not contain information about acceptance criteria, detailed study results proving a device meets acceptance criteria, sample sizes for test or training sets, data provenance, number of experts, adjudication methods, MRMC studies, standalone performance, or how ground truth was established.

This document focuses on regulatory compliance through substantial equivalence, primarily based on design and material similarities, and a set of non-clinical bench tests comparing the device to existing standards and predicate devices.

Therefore, I cannot fulfill your request for this specific information based on the provided text. The document states "Device Comparisons and performance testing indicate that the BENCOX Mirabo Z Cup Cortinium is substantially equivalent to the predicates in terms of intended use, indications, design, materials, performance characteristics and operational principles," and lists the nonclinical testing performed (e.g., Cup Fatigue Testing per ASTM F3090-20, Porous Structure Characterization per various ASTM and DIN EN ISO standards). These tests are typically performed to demonstrate that the device meets existing standards and is comparable to previously cleared devices, rather than establishing specific acceptance criteria and proving performance against them in a clinical study format.

In summary, the provided document does not contain the requested information regarding acceptance criteria, study details, sample sizes, ground truth establishment, or expert involvement for a clinical performance study.

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