21 CFR 888.3560 : Food And Drugs (§ 1.1 To Parts 1403-1499) — (Subpart A To Parts 1272-1299) — Food And Drug Administration, Department Of Health And Human Services (Continued) (Subpart A To Parts 1272-1299) — Medical Devices (Subpart A To § 898.14) — Orthopedic Devices (§ 888.1 To § 888.5980) — Prosthetic Devices (§ 888.3000 To § 888.3810) — Knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis.

(a) Identification. A knee joint patellofemorotibial polymer/metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a knee 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 have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and a tibial component or components and a retropatellar resurfacing component made of ultra-high molecular weight polyethylene. This generic type of device is limited to those prostheses intended for use with bone cement (§ 888.3027).

(b) Classification. Class II.