[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR888.3410] [Page 475] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 888--ORTHOPEDIC DEVICES--Table of Contents Subpart D--Prosthetic Devices Sec. 888.3410 Hip joint metal/polymer semi-constrained resurfacing cemented prosthesis. (a) Identification. A hip joint metal/polymer semi-constrained resurfacing cemented prosthesis is a two-part device intended to be implanted to replace the articulating surfaces of the hip while preserving the femoral head and neck. 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 cap component made of alloy, such as cobalt-chromium-molybdenum, that is placed over a surgically prepared femoral head, and an acetabular resurfacing polymer component. Both components are intended for use with bone cement (Sec. 888.3027). (b) Classification. Class III. (c) Date PMA or notice of completion of a PDP is required. No effective date has been established of the requirement for premarket approval. See Sec. 888.3.