VITALITY HIP STEM
Device Facts
| Record ID | K962560 |
|---|---|
| Device Name | VITALITY HIP STEM |
| Applicant | Encore Orthopedics, Inc. |
| Product Code | JDI · Orthopedic |
| Decision Date | Sep 19, 1996 |
| Decision | SESE |
| Submission Type | Traditional |
| Regulation | 21 CFR 888.3350 |
| Device Class | Class 2 |
| Attributes | Therapeutic |
Intended Use
The Vitality Hip stem is intended for treatment of patients who are candidates for total or hemi-hip arthroplasty. The indications for use of the total hip replacement prosthesis include: noninflammatory degenerative joint disease including osteoarthritis and avascular necrosis; rheumatoid arthritis; correction of functional deformity; revision procedures where other treatments where devices have failed; and treatment of nonunion, femoral neck and trochanteric fractures of the proximal femur with head involvement, which is unmanageable using other techniques. It is intended to be used with cement with acetabular components or with unipolar, bipolar and CoCrMo femoral heads.
Device Story
Vitality Hip Stem; rectangular cross-section; proximal-to-distal and lateral-to-medial taper; forged CoCrMo alloy; grit-blasted proximal surface (4-6 µm); optional calcar collar; Morse taper for modular head attachment. Used in total or hemi-hip arthroplasty; implanted by orthopedic surgeons. Device provides structural replacement for femoral head/neck; restores joint function; facilitates fixation via bone cement. Modular design allows compatibility with various acetabular components and femoral heads.
Clinical Evidence
Bench testing only. Laboratory testing of Morse taper and theoretical stress analysis performed.
Technological Characteristics
Material: Forged CoCrMo alloy. Geometry: Rectangular cross-section, tapered. Surface: Grit-blasted proximal body (4-6 µm). Connection: Morse taper. Neck/stem angle: 130° (sizes 1-2), 132° (sizes 3-6). Fixation: Cemented.
Indications for Use
Indicated for patients requiring total or hemi-hip arthroplasty due to noninflammatory degenerative joint disease (osteoarthritis, avascular necrosis), rheumatoid arthritis, functional deformity, revision of failed devices, or nonunion/fractures of the proximal femur.
Regulatory Classification
Identification
A hip joint metal/polymer semi-constrained cemented prosthesis is a 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 have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and an acetabular resurfacing component made of ultra-high molecular weight polyethylene and is limited to those prostheses intended for use with bone cement (§ 888.3027).
Predicate Devices
- Foundation Forged Cemented Stems (K952191)
- Foundation 9 mm Forged Stems (K961890)
- Lima Universal Stem (K885146)
- Lima Universal Stem (K910836)
Related Devices
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- K041109 — ZIMMER ANATOMIC II HIP PROSTHESIS · Zimmer, Inc. · Jul 20, 2004
- K964704 — DEPUY/ACE MODIFIED MEDICAL ASPECT (MMA) FRACTURE STEM · Depuy, Inc. · Jan 24, 1997
- K192236 — Fitmore Hip Stem · Zimmer GmbH · Nov 5, 2019