Browse hierarchy: [Orthopedic (OR)](/submissions/OR) → [Subpart D — Prosthetic Devices](/submissions/OR/subpart-d%E2%80%94prosthetic-devices) → [21 CFR 888.3353](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/888.3353) → MAY — Prosthesis,  Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous Cemented, Osteophilic Finish

# MAY · Prosthesis,  Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous Cemented, Osteophilic Finish

_Orthopedic · 21 CFR 888.3353 · Class 2_

**Canonical URL:** https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY

## Overview

- **Product Code:** MAY
- **Device Name:** Prosthesis,  Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous Cemented, Osteophilic Finish
- **Regulation:** [21 CFR 888.3353](/submissions/OR/subpart-d%E2%80%94prosthetic-devices/888.3353)
- **Device Class:** 2
- **Review Panel:** [Orthopedic](/submissions/OR)
- **Implant:** yes

## Identification

A hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis is a device intended to be implanted to replace a hip joint. This device limits translation and rotation in one or more planes via the geometry of its articulating surfaces. It has no linkage across-the-joint. The two-part femoral component consists of a femoral stem made of alloys to be fixed in the intramedullary canal of the femur by impaction with or without use of bone cement. The proximal end of the femoral stem is tapered with a surface that ensures positive locking with the spherical ceramic (aluminium oxide, A12 03 ) head of the femoral component. The acetabular component is made of ultra-high molecular weight polyethylene or ultra-high molecular weight polyethylene reinforced with nonporous metal alloys, and used with or without bone cement.

## Classification Rationale

Class II.

## Recent Cleared Devices (4 of 4)

| Record | Device Name | Applicant | Decision Date | Decision |
| --- | --- | --- | --- | --- |
| [K123604](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY/K123604.md) | ABG III MONOLITHIC HIP STEM | Howmedica Osteonics Corp. | Aug 16, 2013 | SESE |
| [K110807](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY/K110807.md) | ABG II MONOLITHIC HIP STEM | Stryker Corp. | May 25, 2011 | SESE |
| [K090103](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY/K090103.md) | 100KGY E-POLY ACETABULAR LINERS- ADDITIONAL PROFILES: +3 MAXROM AND +3 HI-WALL | Biomet, Inc. | Feb 11, 2009 | SESE |
| [K051844](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY/K051844.md) | EQUATOR PLUS ACETABULAR CUP SYSTEM | Portland Orthopaedics Pty. , Ltd. | Oct 7, 2005 | SESE |

## Top Applicants

- Biomet, Inc. — 1 clearance
- Howmedica Osteonics Corp. — 1 clearance
- Portland Orthopaedics Pty. , Ltd. — 1 clearance
- Stryker Corp. — 1 clearance

---

**Source:** [https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY](https://fda.innolitics.com/submissions/OR/subpart-d%E2%80%94prosthetic-devices/MAY)

**Published by [Innolitics](https://innolitics.com)** — a medical-device software consultancy. We help companies design, build, and clear FDA-regulated software and AI/ML devices. If you're preparing [a 510(k)](https://innolitics.com/services/510ks/), [a De Novo](https://innolitics.com/services/regulatory/), [a SaMD](https://innolitics.com/services/end-to-end-samd/), [an AI/ML medical device](https://innolitics.com/services/medical-imaging-ai-development/), or [an FDA regulatory strategy](https://innolitics.com/services/regulatory/), [get in touch](https://innolitics.com/contact).

**Cite:** Innolitics at https://innolitics.com
