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Shoulder Prosthesis, Reverse Configuration

Page Type
Product Code
Definition
Intended to be used to relieve pain and to replace the glenoid and humeral side of the shoulder joint in order to restore mobility in a grossly rotator cuff deficient joint with severe arthropathy or a previous joint replacement with a grossly rotator cuff deficient joint.
Physical State
Typically includes humeral stem, humeral socket, humeral cup, glenosphere, and glenoid baseplate with fixation screws. The humeral stem and humeral socket may be one single piece or two separate pieces locked together. The humeral cup is snap fit into the humeral socket. The humeral cup is made from UHMWPE and articulates with the glenosphere made of CoCrMo alloy, Titanium alloy, or stainless steel. The glenosphere locks to glenoid baseplate which is fixed to the glenoid bone by 2-6 screws. The glenoid baseplate has HA coating, metallic coating or no coating and may feature a central peg, central screw, central cage, or keel.
Technical Method
Relative to the native shoulder joint, the device moves the center of rotation medially and distally to the anatomic position which increases the length of the deltoid muscle's lever arm, allowing the same rotational moment with less applied force.
Target Area
Shoulder joint
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3660
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3660 Shoulder joint metal/polymer semi-constrained cemented prosthesis

§ 888.3660 Shoulder joint metal/polymer semi-constrained cemented prosthesis.

(a) Identification. A shoulder joint metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a shoulder 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 humeral resurfacing component made of alloys, such as cobalt-chromium-molybdenum, and a glenoid resurfacing component made of ultra-high molecular weight polyethylene, and is limited to those prostheses intended for use with bone cement (§ 888.3027).

(b) Classification. Class II. The special controls for this device are:

(1) FDA's:

(i) “Use of International Standard ISO 10993 ‘Biological Evaluation of Medical Devices—Part I: Evaluation and Testing,’ ”

(ii) “510(k) Sterility Review Guidance of 2/12/90 (K90-1),”

(iii) “Guidance Document for Testing Orthopedic Implants with Modified Metallic Surfaces Apposing Bone or Bone Cement,”

(iv) “Guidance Document for the Preparation of Premarket Notification (510(k)) Application for Orthopedic Devices,” and

(v) “Guidance Document for Testing Non-articulating, ‘Mechanically Locked’ Modular Implant Components,”

(2) International Organization for Standardization's (ISO):

(i) ISO 5832-3:1996 “Implants for Surgery—Metallic Materials—Part 3: Wrought Titanium 6-aluminum 4-vandium Alloy,”

(ii) ISO 5832-4:1996 “Implants for Surgery—Metallic Materials—Part 4: Cobalt-chromium-molybdenum casting alloy,”

(iii) ISO 5832-12:1996 “Implants for Surgery—Metallic Materials—Part 12: Wrought Cobalt-chromium-molybdenum alloy,”

(iv) ISO 5833:1992 “Implants for Surgery—Acrylic Resin Cements,”

(v) ISO 5834-2:1998 “Implants for Surgery—Ultra-high Molecular Weight Polyethylene—Part 2: Moulded Forms,”

(vi) ISO 6018:1987 “Orthopaedic Implants—General Requirements for Marking, Packaging, and Labeling,” and

(vii) ISO 9001:1994 “Quality Systems—Model for Quality Assurance in Design/Development, Production, Installation, and Servicing,” and

(3) American Society for Testing and Materials':

(i) F 75-92 “Specification for Cast Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implant Material,”

(ii) F 648-98 “Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants,”

(iii) F 799-96 “Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Forgings for Surgical Implants,”

(iv) F 1044-95 “Test Method for Shear Testing of Porous Metal Coatings,”

(v) F 1108-97 “Specification for Titanium-6 Aluminum-4 Vanadium Alloy Castings for Surgical Implants,”

(vi) F 1147-95 “Test Method for Tension Testing of Porous Metal,”

(vii) F 1378-97 “Standard Specification for Shoulder Prosthesis,” and

(viii) F 1537-94 “Specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implants.”

[52 FR 33702, Sept. 4, 1987, as amended at 65 FR 17148, Mar. 31, 2000]

Shoulder Prosthesis, Reverse Configuration

Page Type
Product Code
Definition
Intended to be used to relieve pain and to replace the glenoid and humeral side of the shoulder joint in order to restore mobility in a grossly rotator cuff deficient joint with severe arthropathy or a previous joint replacement with a grossly rotator cuff deficient joint.
Physical State
Typically includes humeral stem, humeral socket, humeral cup, glenosphere, and glenoid baseplate with fixation screws. The humeral stem and humeral socket may be one single piece or two separate pieces locked together. The humeral cup is snap fit into the humeral socket. The humeral cup is made from UHMWPE and articulates with the glenosphere made of CoCrMo alloy, Titanium alloy, or stainless steel. The glenosphere locks to glenoid baseplate which is fixed to the glenoid bone by 2-6 screws. The glenoid baseplate has HA coating, metallic coating or no coating and may feature a central peg, central screw, central cage, or keel.
Technical Method
Relative to the native shoulder joint, the device moves the center of rotation medially and distally to the anatomic position which increases the length of the deltoid muscle's lever arm, allowing the same rotational moment with less applied force.
Target Area
Shoulder joint
Regulation Medical Specialty
Orthopedic
Review Panel
Orthopedic
Submission Type
510(K)
Device Classification
Class 2
Regulation Number
888.3660
GMP Exempt?
No
Summary Malfunction Reporting
Eligible
Implanted Device
Yes
Life-Sustain/Support Device
No
Third Party Review
Not Third Party Eligible

CFR § 888.3660 Shoulder joint metal/polymer semi-constrained cemented prosthesis

§ 888.3660 Shoulder joint metal/polymer semi-constrained cemented prosthesis.

(a) Identification. A shoulder joint metal/polymer semi-constrained cemented prosthesis is a device intended to be implanted to replace a shoulder 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 humeral resurfacing component made of alloys, such as cobalt-chromium-molybdenum, and a glenoid resurfacing component made of ultra-high molecular weight polyethylene, and is limited to those prostheses intended for use with bone cement (§ 888.3027).

(b) Classification. Class II. The special controls for this device are:

(1) FDA's:

(i) “Use of International Standard ISO 10993 ‘Biological Evaluation of Medical Devices—Part I: Evaluation and Testing,’ ”

(ii) “510(k) Sterility Review Guidance of 2/12/90 (K90-1),”

(iii) “Guidance Document for Testing Orthopedic Implants with Modified Metallic Surfaces Apposing Bone or Bone Cement,”

(iv) “Guidance Document for the Preparation of Premarket Notification (510(k)) Application for Orthopedic Devices,” and

(v) “Guidance Document for Testing Non-articulating, ‘Mechanically Locked’ Modular Implant Components,”

(2) International Organization for Standardization's (ISO):

(i) ISO 5832-3:1996 “Implants for Surgery—Metallic Materials—Part 3: Wrought Titanium 6-aluminum 4-vandium Alloy,”

(ii) ISO 5832-4:1996 “Implants for Surgery—Metallic Materials—Part 4: Cobalt-chromium-molybdenum casting alloy,”

(iii) ISO 5832-12:1996 “Implants for Surgery—Metallic Materials—Part 12: Wrought Cobalt-chromium-molybdenum alloy,”

(iv) ISO 5833:1992 “Implants for Surgery—Acrylic Resin Cements,”

(v) ISO 5834-2:1998 “Implants for Surgery—Ultra-high Molecular Weight Polyethylene—Part 2: Moulded Forms,”

(vi) ISO 6018:1987 “Orthopaedic Implants—General Requirements for Marking, Packaging, and Labeling,” and

(vii) ISO 9001:1994 “Quality Systems—Model for Quality Assurance in Design/Development, Production, Installation, and Servicing,” and

(3) American Society for Testing and Materials':

(i) F 75-92 “Specification for Cast Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implant Material,”

(ii) F 648-98 “Specification for Ultra-High-Molecular-Weight Polyethylene Powder and Fabricated Form for Surgical Implants,”

(iii) F 799-96 “Specification for Cobalt-28 Chromium-6 Molybdenum Alloy Forgings for Surgical Implants,”

(iv) F 1044-95 “Test Method for Shear Testing of Porous Metal Coatings,”

(v) F 1108-97 “Specification for Titanium-6 Aluminum-4 Vanadium Alloy Castings for Surgical Implants,”

(vi) F 1147-95 “Test Method for Tension Testing of Porous Metal,”

(vii) F 1378-97 “Standard Specification for Shoulder Prosthesis,” and

(viii) F 1537-94 “Specification for Wrought Cobalt-28 Chromium-6 Molybdenum Alloy for Surgical Implants.”

[52 FR 33702, Sept. 4, 1987, as amended at 65 FR 17148, Mar. 31, 2000]