(28 days)
The Pinnacle Metal-On-Metal Acetabular Cup Liners are indicated for use as the acetabular component in total 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, 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.
The Pinnacle Metal-On-Metal Acetabular Cup Liners are intended for use with DePuy Pinnacle Acetabular Shells and 28mm diameter Co-Cr-Mo femoral heads only.
The Pinnacle Metal-On-Metal (MOM) Acetabular Cup Liner is a metal liner that is intended for use with the Pinnacle Acetabular Shells that have been cleared previously. The liner has a 28mm inner diameter and is offered in a neutral style only. The Pinnacle MOM liner is mechanically locked with the shell via a taper junction, and articulates with commercially available prosthetic femoral heads.
This document is a 510(k) summary for the DePuy Pinnacle Metal-On-Metal Acetabular Cup Liners. It is a premarket notification to the FDA to demonstrate substantial equivalence to a legally marketed predicate device. Therefore, it does not contain a study proving the device meets acceptance criteria.
The document states: "The Pinnacle Metal-On-Metal Acetabular Cup Liners are nearly identical to the Ultima Metal-On-Metal Acetabular Cup Liners that were cleared previously. The intended use, articular surface, material and locking mechanism with the outer shell are the same. The only changes are minor design changes that allow the liners to be used with the Pinnacle Acetabular Shells that have been cleared previously."
This statement indicates that the device's acceptance is based on its substantial equivalence to an already approved device (DePuy Ultima Metal-On-Metal Acetabular Cup Liners), rather than a new study with specific acceptance criteria and performance metrics detailed here.
Therefore, I cannot provide the requested information for acceptance criteria and a study proving the device meets those criteria, as this document is not a study report.
§ 888.3330 Hip joint metal/metal semi-constrained, with an uncemented acetabular component, prosthesis.
(a)
Identification. A hip joint metal/metal semi-constrained, with an uncemented acetabular component, prosthesis is a two-part device intended to be implanted to replace a hip joint. The device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. This generic type of device includes prostheses that consist of a femoral and an acetabular component, both made of alloys, such as cobalt-chromium-molybdenum. The femoral component is intended to be fixed with bone cement. The acetabular component is intended for use without bone cement (§ 888.3027).(b)
Classification. Class III.(c)
Date PMA or notice of completion of PDP is required. A PMA or a notice of completion of a PDP is required to be filed with the Food and Drug Administration on or before May 18, 2016, for any hip joint metal/metal semi-constrained prosthesis with an uncemented acetabular component that was in commercial distribution before May 28, 1976, or that has, on or before May 18, 2016, been found to be substantially equivalent to a hip joint metal/metal semi-constrained prosthesis with an uncemented acetabular component that was in commercial distribution before May 28, 1976. Any other hip joint metal/metal semi-constrained prosthesis with an uncemented acetabular component shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.