Last synced on 18 April 2025 at 11:05 pm

Hip Prosthesis, Semi-Constrained, Cemented, Metal/Polymer, + Additive, Porous, Uncemented

Page Type
Product Code
Definition
1. Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis. 2. Rheumatoid arthritis. 3. Correction of functional deformity. 4. Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques. 5. Revision procedures where other treatment or devices have failed. Cemented and uncemented use.
Physical State
May include: Acetabular Shell Acetabular Liner Femoral Head Femoral Stem Femoral Neck Instrumentation
Technical Method
This device is 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 has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene containing an additive such as a-tocopherol articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The stem/shell are coated with a porous coating to achieve cementless biological fixation.
Target Area
Hip
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3358
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3358 Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis

§ 888.3358 Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis.

(a) Identification. A hip joint metal/polymer/metal semi-constrained porous-coated uncemented 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 has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy or a titanium-aluminum-vanadium (Ti-6Al-4V) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The femoral stem and acetabular shell have a porous coating made of, in the case of Co-Cr-Mo substrates, beads of the same alloy, and in the case of Ti-6Al-4V substrates, fibers of commercially pure titanium or Ti-6Al-4V alloy. The porous coating has a volume porosity between 30 and 70 percent, an average pore size between 100 and 1,000 microns, interconnecting porosity, and a porous coating thickness between 500 and 1,500 microns. The generic type of device has a design to achieve biological fixation to bone without the use of bone cement.

(b) Classification. Class II.

[58 FR 3228, Jan. 8, 1993]

Hip Prosthesis, Semi-Constrained, Cemented, Metal/Polymer, + Additive, Porous, Uncemented

Page Type
Product Code
Definition
1. Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis. 2. Rheumatoid arthritis. 3. Correction of functional deformity. 4. Treatment of non-union, femoral neck fracture, and trochanteric fractures of the proximal femur with head involvement, unmanageable by other techniques. 5. Revision procedures where other treatment or devices have failed. Cemented and uncemented use.
Physical State
May include: Acetabular Shell Acetabular Liner Femoral Head Femoral Stem Femoral Neck Instrumentation
Technical Method
This device is 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 has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene containing an additive such as a-tocopherol articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The stem/shell are coated with a porous coating to achieve cementless biological fixation.
Target Area
Hip
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3358
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3358 Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis

§ 888.3358 Hip joint metal/polymer/metal semi-constrained porous-coated uncemented prosthesis.

(a) Identification. A hip joint metal/polymer/metal semi-constrained porous-coated uncemented 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 has a femoral component made of a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy or a titanium-aluminum-vanadium (Ti-6Al-4V) alloy and an acetabular component composed of an ultra-high molecular weight polyethylene articulating bearing surface fixed in a metal shell made of Co-Cr-Mo or Ti-6Al-4V. The femoral stem and acetabular shell have a porous coating made of, in the case of Co-Cr-Mo substrates, beads of the same alloy, and in the case of Ti-6Al-4V substrates, fibers of commercially pure titanium or Ti-6Al-4V alloy. The porous coating has a volume porosity between 30 and 70 percent, an average pore size between 100 and 1,000 microns, interconnecting porosity, and a porous coating thickness between 500 and 1,500 microns. The generic type of device has a design to achieve biological fixation to bone without the use of bone cement.

(b) Classification. Class II.

[58 FR 3228, Jan. 8, 1993]