(105 days)
Total hip components are indicated for uncemented use in individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainage-free period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity. Smith & Nephew Modular Hip components are for single use only.
The Smith & Nephew Modular Hip consists of primary and revision stems used with porous and HA coated modular sleeves. The stems feature a 12/14 taper and are used with existing Smith & Nephew femoral heads and acetabular components. Modular hip stems and sleeves are manufactured from Ti-6Al-4V conforming to ASTM F 1472 or ASTM F 136.
This document is a 510(k) premarket notification for a hip implant, which primarily focuses on establishing substantial equivalence to previously approved devices based on design, materials, and mechanical testing. It does not contain the kind of detailed clinical study data, acceptance criteria, or performance metrics typically seen in AI/software device submissions. Therefore, I cannot provide information for many of the requested fields.
Here's an analysis based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance
Not applicable for this submission type. The submission relies on mechanical test data and substantial equivalence to predicate devices, rather than clinical performance metrics with pre-defined acceptance criteria for accuracy, sensitivity, or specificity.
2. Sample size used for the test set and the data provenance
No test set of clinical data is described or used in this submission. The "test" mentioned refers to mechanical testing.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts
Not applicable. No clinical ground truth was established for a test set.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable.
5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance
Not applicable. This is not an AI/software device submission.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is not an AI/software device submission.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
Not applicable for clinical performance. For mechanical performance, the "ground truth" would be the engineering specifications and established test methods for hip implants.
8. The sample size for the training set
Not applicable. No training set for an algorithm is mentioned.
9. How the ground truth for the training set was established
Not applicable.
Summary of Relevant Information from the Document:
- Acceptance Criteria (Implicit for mechanical testing): The device is "capable of withstanding expected in vivo loading without failure" and is "equivalent to devices currently used clinically." This is a general statement about mechanical integrity, not specific quantitative performance metrics.
- Study Proving Acceptance: "A review of the mechanical test data indicated that the Smith & Nephew Modular Hip is equivalent to devices currently used clinically and is capable of withstanding expected in vivo loading without failure."
- Sample Size for Mechanical Testing: Not explicitly stated, but mechanical testing of medical devices typically involves a specific number of samples tested to failure or for a specified number of cycles according to relevant ASTM or ISO standards. The document does not provide these details.
- Data Provenance (Mechanical Testing): The mechanical testing would have been conducted by the manufacturer, Smith & Nephew, Inc.
- Ground Truth (Mechanical Testing): Established through engineering specifications and industry-standard mechanical test protocols (e.g., ASTM F1472, ASTM F136 mentioned for materials).
- Substantial Equivalence: The primary "study" for this submission is a comparison to predicate devices, demonstrating similarity in "indications for use, design features, operational principles, and material composition."
In conclusion, this document describes a traditional medical device submission (hip implant) that relies on mechanical testing and substantial equivalence to predicate devices, not clinical studies with acceptance criteria relevant to AI or software performance.
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K042/27 (fg lof 1)
NOV 1 9 2004
Smith & Nephew, Inc. Summary of Safety and Effectiveness Smith & Nephew Modular Hip
Date of Summary: November 2, 2004
Contact Person and Address
Janet Johnson Akil Director, Regulatory Affairs Smith & Nephew, Inc. Orthopaedic Division 1450 Brooks Road Memphis, TN 38116 (901) 399-5153
Name of Device: Smith & Nephew Modular Hip Common Name: Prosthetic hip joint
Device Description
The Smith & Nephew Modular Hip consists of primary and revision stems used with porous and HA coated modular sleeves. The stems feature a 12/14 taper and are used with existing Smith & Nephew femoral heads and acetabular components. Modular hip stems and sleeves are manufactured from Ti-6Al-4V conforming to ASTM F 1472 or ASTM F 136.
Device Classification
21 CFR 888.3353 Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis - Class II
Mechanical and Clinical Data
A review of the mechanical test data indicated that the Smith & Nephew Modular Hip is equivalent to devices currently used clinically and is capable of withstanding expected in vivo loading without failure.
Indications for Use
Total hip components are indicated for uncemented use in individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJD) or any of its composite diagnoses such as osteoarthritis; avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainage-free period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity. Smith & Nephew Modular Hip components are for single use only.
Substantial Equivalence Information
The substantial equivalence of the Smith & Nephew Modular Hip is based on its similarities in indications for use, design features, operational principles, and material composition to the following predicate devices – Joint Medical Products S-ROM Total Hip System (K921111, K934412, K954935, and K961939) and the Smith & Nephew Synergy Hip System (K963509, K991485, and K0029961.
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DEPARTMENT OF HEALTH & HUMAN SERVICES
Image /page/1/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services. The logo consists of a circular seal with the words "DEPARTMENT OF HEALTH & HUMAN SERVICES - USA" around the perimeter. Inside the circle is an emblem featuring a stylized eagle with its wings spread, symbolizing the department's mission to protect the health of all Americans.
Public Health Service
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
NOV 1 9 2004
Mr. Jason Sells Regulatory Affairs Specialist Orthopaedics Smith & Nephew, Inc. 1450 Brooks Road Memphis. Tennessee 38116
Re: K042127
Trade Name: Smith & Nephew Modular Hip Regulation Number: 21 CFR 888.3353 Regulation Name: Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis Regulatory Class: II Product Code: MEH Dated: August 5, 2004 Received: August 6, 2004
Dear Mr. Sells:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
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Page 2 - Mr. Jason Sells
This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at (240) 276-0120. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97). You may obtain other general information on your responsibilities under the Act from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html
Sincerely yours.
R. Merle A. Millhaus
Celia M. Witten, Ph.D., M.D. Director Division of General, Restorative and Neurological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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Indications for Use
16042127
510(k) Number (if known):
Device Name: Smith & Nephew Modular Hip
Indications for Use:
Total hip components are indicated for uncemented use in individuals undergoing primary and revision surgery where other treatments or devices have failed in rehabilitating hips damaged as a result of trauma, inflammatory joint disease such as rheumatoid arthritis, or noninflammatory degenerative joint disease (NIDJ) or any of its composite diagnoses such as osteoarthritis: avascular necrosis; traumatic arthritis; slipped capital epiphysis; fused hip; fracture of the pelvis; diastrophic variant; old, remote osteomyelitis with an extended drainage-free period; nonunion, femoral neck fracture and trochanteric fractures of the proximal femur with head involvement that are unmanageable using other techniques; femoral osteotomy, or Girdlestone resection; fracture dislocation of the hip; and correction of deformity. Smith & Nephew Modular Hip components are for single use only.
Prescription Use (Part 21 CFR 801 Subpart D)
AND/OR
Over-The-Counter Use (21 CFR 807 Subpart C)
(PLEASE DO NOT WRITE BELOW THIS LINE – CONTINUE ON ANOTHER PAGE IF NEEDED)
Concurrence of CDRH, Office of Device Evaluation (ODE)
Division of General, Restorative, and Neurological De
510(k) Number K042127
Page 1 of 1
§ 888.3353 Hip joint metal/ceramic/polymer semi-constrained cemented or nonporous uncemented prosthesis.
(a)
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.(b)
Classification. Class II.