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The LSF "HA" COATED TRIAD TOTAL HIP SYSTEM is indicated for use in total or partial hip replacement procedures for patients suffering severe pain and disability due to structural damage in the hip joint from rheumatoid arthritis, osteoarthritis, post-traumatic arthritis, collagen disorders, avascular necrosis, traumatic and non-union of femoral fractures. Use of the prosthesis is also indicated for patients with congenital hip dysplasia, protrusio acetabuli, slipped capital femoral epiphysis, and disability due to previous fusion, where bone stock is inadequate for other reconstruction techniques.

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I am sorry, but the provided text is a 510(k) clearance letter from the FDA for a medical device (LSF HA Coated Triad Total Hip System). It does not contain information about acceptance criteria, device performance, sample sizes for studies, expert qualifications, adjudication methods, multi-reader multi-case studies, standalone performance, or training set details.

The letter explicitly states: "You may not label or in any way promote these devices for "enhanced clinical or radiographic performance, enhanced biological fixation and/or long-term stable fixation." The data presented support equivalence with no additional claims over a conventional porous coated hip prosthesis (i.e., biological fixation, only)."

This indicates that the clearance was based on substantial equivalence to a predicate device, rather than a study demonstrating specific performance against predefined acceptance criteria for the claims you are asking about.

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