Last synced on 18 April 2025 at 11:05 pm

Prosthesis, Hip, Constrained, Cemented Or Uncemented, Metal/Polymer, + Additive

Page Type
Product Code
Definition
For use as a component of a total hip prosthesis in primary and revision patients at high risk of dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease, or intraoperative instability, and for whom all other options to constrained acetabular components have been considered.
Physical State
System contains acvetabular screws, acetabular shell, constrained UHMWPE acetabular liner doped with an additive, a femoral ball, and a metallic femoral stem.
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. The liner constrains the head such that it prevent axial dislocation. 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 shell and stem can be attached to the bone by either cemented, pressfit, or biological fixation.
Target Area
Hip
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3310
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3310 Hip joint metal/polymer constrained cemented or uncemented prosthesis

§ 888.3310 Hip joint metal/polymer constrained cemented or uncemented prosthesis.

(a) Identification. A hip joint metal/polymer constrained cemented or uncemented prosthesis is a device intended to be implanted to replace a hip joint. The device prevents dislocation in more than one anatomic plane and has components that are linked together. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and an acetabular component made of ultra-high-molecular-weight polyethylene with or without a metal shell, made of alloys, such as cobalt-chromium-molybdenum and titanium alloys. This generic type of device is intended for use with or without bone cement (§ 888.3027).

(b) Classification. Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance: Hip Joint Metal/Polymer Constrained Cemented or Uncemented Prosthesis.”

[67 FR 21173, Apr. 30, 2002]

Prosthesis, Hip, Constrained, Cemented Or Uncemented, Metal/Polymer, + Additive

Page Type
Product Code
Definition
For use as a component of a total hip prosthesis in primary and revision patients at high risk of dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease, or intraoperative instability, and for whom all other options to constrained acetabular components have been considered.
Physical State
System contains acvetabular screws, acetabular shell, constrained UHMWPE acetabular liner doped with an additive, a femoral ball, and a metallic femoral stem.
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. The liner constrains the head such that it prevent axial dislocation. 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 shell and stem can be attached to the bone by either cemented, pressfit, or biological fixation.
Target Area
Hip
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3310
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3310 Hip joint metal/polymer constrained cemented or uncemented prosthesis

§ 888.3310 Hip joint metal/polymer constrained cemented or uncemented prosthesis.

(a) Identification. A hip joint metal/polymer constrained cemented or uncemented prosthesis is a device intended to be implanted to replace a hip joint. The device prevents dislocation in more than one anatomic plane and has components that are linked together. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum, and an acetabular component made of ultra-high-molecular-weight polyethylene with or without a metal shell, made of alloys, such as cobalt-chromium-molybdenum and titanium alloys. This generic type of device is intended for use with or without bone cement (§ 888.3027).

(b) Classification. Class II (special controls). The special control for this device is the FDA guidance document entitled “Class II Special Controls Guidance: Hip Joint Metal/Polymer Constrained Cemented or Uncemented Prosthesis.”

[67 FR 21173, Apr. 30, 2002]