K Number
K101356
Device Name
Spacer-G and Spacer-K
Manufacturer
Date Cleared
2011-09-20

(494 days)

Product Code
Regulation Number
888.3360
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
Spacer-K is indicated for temporary use (maximum of 180 days) as a total knee replacement (TKR) in skeletally mature patients undergoing a two-stage procedure due to a septic process. Spacer-K is applied on the femoral condyles and on the tibial plate following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection). Spacer-K is not intended for use for more than 180 days, at which time it must be explanted and permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Because of the inherent mechanical limitations of the device material (gentamicin/polymethylmethacrylate), Spacer-K is only indicated for patients who will consistently use traditional mobility assist devices (e.g. crutches, walkers, canes) throughout the implantation period. Spacer-G is indicated for temporary use (maximum of 180 days) as a total hip replacement (THR) in skeletally mature patients undergoing a two-stage procedure due to a septic process. The device is inserted into the femoral medullary canal and acetabular cavity following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection). Spacer-G is not intended for use for more than 180 days, at which time it must be explanted and a permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).
Device Description
Spacers are temporary joint prostheses. Spacer-G is a single piece device that mimics a hemi-hip prosthesis, and is available in six sizes. Spacer-K includes a femoral and tibial component, and is available in three sizes. Spacer-G and Spacer-K are made of fully formed polymethylmethacrylate (radiopaque PMMA with gentamicin). Spacer-G contains an inner stainless steel (AISI 316L stainless steel) reinforcing structure. The mass used in the filling of the molds (the PMMA unformed resin) is prepared from a powder component and a liquid component. The liquid component consists of methylmethacrylate, N,N-dimethyl-p-toluidine, hydroquinone; the powder component consists of polymethymethacrylate, barium sulphate, benzovl peroxide, and gentamicin sulphate. The Spacer devices provide patients, undergoing a two-stage revision procedure for an infected total joint, a temporary implant to 1) allow for partial weight bearing and 2) provide a natural range of motion. The devices also maintain a patient's soft tissue and joint space, preventing further complications such as muscular contraction. The gentamicin protects the device from bacterial colonization.
More Information

No
The summary describes a temporary joint prosthesis made of PMMA with gentamicin, with no mention of software, algorithms, or data processing that would indicate AI/ML technology.

Yes
The device is used to treat a septic process in patients undergoing a two-stage knee or hip replacement procedure. It provides a temporary solution to maintain joint space, allow for partial weight bearing, and protect against bacterial colonization, all contributing to the patient's recovery from infection.

No
The device, Spacer-K/G, is a temporary joint prosthesis used in a two-stage revision procedure for infected total joints. Its stated purposes are mechanical support and drug delivery (gentamicin release), not disease diagnosis.

No

The device description clearly states that the device is made of polymethylmethacrylate and stainless steel, which are physical materials, not software.

Based on the provided information, this device is not an IVD (In Vitro Diagnostic).

Here's why:

  • IVD Definition: In vitro diagnostics are tests performed on samples taken from the human body, such as blood, urine, or tissue, to detect diseases, conditions, or infections.
  • Device Function: The description clearly states that Spacer-K and Spacer-G are temporary joint prostheses implanted into the body to replace a knee or hip joint during a two-stage revision procedure for infection. They are mechanical devices designed to provide structural support, allow for movement, and deliver localized antibiotics.
  • Lack of Diagnostic Purpose: The intended use and device description focus on the treatment and management of a septic process (infection) by providing a temporary replacement and delivering antibiotics. There is no mention of analyzing biological samples or providing diagnostic information about the patient's condition.

Therefore, Spacer-K and Spacer-G are considered medical devices, specifically implantable prostheses, not in vitro diagnostics.

N/A

Intended Use / Indications for Use

Spacer-G and Spacer-K are indicated for temporary use (maximum 180 days) as a total hip or knee replacement for patients undergoing a two-stage procedure due to a septic process.

Spacer-K
Spacer-K is indicated for temporary use (maximum of 180 days) as a total knee replacement (TKR) in skeletally mature patients undergoing a two-stage procedure due to a septic process.

Spacer-K is applied on the femoral condyles and on the tibial plate following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).

Spacer-K is not intended for use for more than 180 days, at which time it must be explanted and permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Because of the inherent mechanical limitations of the device material (gentamicin/polymethylmethacrylate), Spacer-K is only indicated for patients who will consistently use traditional mobility assist devices (e.g. crutches, walkers, canes) throughout the implantation period.

Spacer-G
Spacer-G is indicated for temporary use (maximum of 180 days) as a total hip replacement (THR) in skeletally mature patients undergoing a two-stage procedure due to a septic process.

The device is inserted into the femoral medullary canal and acetabular cavity following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).

Spacer-G is not intended for use for more than 180 days, at which time it must be explanted and a permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).

Product codes

KWL, KWY, MBB, JWH

Device Description

Spacers are temporary joint prostheses. Spacer-G is a single piece device that mimics a hemi-hip prosthesis, and is available in six sizes. Spacer-K includes a femoral and tibial component, and is available in three sizes. Spacer-G and Spacer-K are made of fully formed polymethylmethacrylate (radiopaque PMMA with gentamicin). Spacer-G contains an inner stainless steel (AISI 316L stainless steel) reinforcing structure. The mass used in the filling of the molds (the PMMA unformed resin) is prepared from a powder component and a liquid component. The liquid component consists of methylmethacrylate, N,N-dimethyl-p-toluidine, hydroquinone; the powder component consists of polymethymethacrylate, barium sulphate, benzovl peroxide, and gentamicin sulphate.

The Spacer devices provide patients, undergoing a two-stage revision procedure for an infected total joint, a temporary implant to 1) allow for partial weight bearing and 2) provide a natural range of motion. The devices also maintain a patient's soft tissue and joint space, preventing further complications such as muscular contraction. The gentamicin protects the device from bacterial colonization.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Hip, Knee

Indicated Patient Age Range

Skeletally mature patients

Intended User / Care Setting

Not Found

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Performance testing was conducted to verify that implant performance continues to meet the production specifications and be adequate for in vivo applications under the temporary conditions of use. Mechanical properties, gentamicin release and stability data were evaluated and found to support the substantial equivalence of the devices.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

K062274, K062273

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 888.3360 Hip joint femoral (hemi-hip) metallic cemented or uncemented prosthesis.

(a)
Identification. A hip joint femoral (hemi-hip) metallic cemented or uncemented prosthesis is a device intended to be implanted to replace a portion of the hip joint. This generic type of device includes prostheses that have a femoral component made of alloys, such as cobalt-chromium-molybdenum. This generic type of device includes designs which are intended to be fixed to the bone with bone cement (§ 888.3027) as well as designs which have large window-like holes in the stem of the device and which are intended for use without bone cement. However, in these latter designs, fixation of the device is not achieved by means of bone ingrowth.(b)
Classification. Class II.

0

Image /page/0/Picture/0 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left is the Department of Health & Human Services logo. To the right of that is the FDA logo, which is a blue square with the letters "FDA" in white. To the right of the blue square is the text "U.S. FOOD & DRUG ADMINISTRATION" in blue.

February 28, 2023

TECRES S.p.A Christine Brauer Regulatory Affairs Consultant 7 Trail House Court Rockville, Maryland 20850

Re: K101356

Trade/Device Name: Spacer-G and Spacer-K Regulation Number: 21 CFR 888.3360 Regulation Name: Hip joint femoral (hemi-hip) metallic cemented or uncemented prosthesis Regulatory Class: Class II Product Code: KWL, KWY, MBB, JWH

Dear Christine Brauer:

The Food and Drug Administration (FDA) is sending this letter to notify you of an administrative change related to your previous substantial equivalence (SE) determination letter dated September 20, 2011. Specifically, FDA is updating this SE Letter with regards to the trade name, and product codes as an administrative correction.

Please note that the 510(k) submission was not re-reviewed. For questions regarding this letter please contact Limin Sun, Ph.D., OHT6: Office of Orthopedic Devices at 301-796-7056 or Limin.Sun(@fda.hhs.gov.

Sincerely,

Limin Sun -S

Limin Sun, Ph.D. Assistant Director DHT6A: Division of Joint Arthroplasty Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Ouality Center for Devices and Radiological Health

1

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 text "DEPARTMENT OF HEALTH & HUMAN SERVICES USA" around the perimeter. Inside the seal is an abstract symbol resembling an eagle or bird in flight, composed of three curved lines.

Food and Drug Administration 10903 New Hampshire Avenue Document Control Room -WO66-G609 Silver Spring, MD 20993-0002

TECRES SPA % Christine Brauer, Ph.D. Brauer Device Consultants. LLC 7 Trailhouse Court Rockville, Maryland 20850

SEP 2 0 2011

Re: K101356 Trade/Device Name: Tecres Spacer-G Regulation Number: 21 CFR 888.3360 Regulation Name: Prosthesis, hip, hemi-, femoral, metal Regulatory Class: Class II Product Code: KWL, KWY, and MBB

Trade/Device Name: Tecres Spacer-K Regulation Number: 21 CFR 888.3560 Regulation Name: Prosthesis, knee, patellofemorotibial, semi-constrained, cemented, polymer/metal/polymer Regulatory Class: Class II Product Code: JWH and MBB

Dated: July 27, 2010 Received: July 28, 2010

Dear Dr. Brauer:

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. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

2

Page 2 - Christine Brauer, Ph.D.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to 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); medical device reporting of medical device-related adverse events) (21 CFR 803); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the clectronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please go to http://www.fda.gov/Aboutf-DA/CentersOffices/CDRHOffices/ucm115809.htm for the Center for Devices and Radiological Health's (CDRH's) Office of Compliance. Also, please note the regulation entitled. "Misbranding by reference to premarket notification" (21CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803). please go to

http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm for the CDRH's Office of Surveillance and Biometrics/Division of Postmarket Surveillance.

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) 796-7100 or at its Internet address

http://www.fda.gov/MedicalDevices/Resourcesfor You/Industry/default.htm.

Sincerely yours,

Mark A. Mulkerin

Mark N. Melkerson Director Division of Surgical, Orthopedic and Restorative Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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ATTACHMENT 2

Indications for Use Form

510(k) Number (if known):

K101356

Device Name:

Spacer-K and Spacer-G

Indications for Use:

Spacer-K

Spacer-K is indicated for temporary use (maximum of 180 days) as a total knee replacement (TKR) in skeletally mature patients undergoing a two-stage procedure due to a septic process.

Interspace is applied on the femoral condyles and on the tibial plate following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antibiotic therapy (standard treatment approach to an infection).

Spacer-K is not intended for use than 180 days, at which time it must be explanted and a permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Because of the inherent mechanical limitations of the device material (gentamicin/polymethylmethacrylate), Spacer K is only indicated for patients who will consistently use traditional mobility assist devices (e.g. crutches, walkers, canes) throughout the implantation period.

Spacer-G

Spacer-G is indicated for temporary use (maximum of 180 days) as a total hip replacement (THR) in skeletally mature patients undergoing a two-stage procedure due to a septic process.

The device is inserted into the femoral medullary canal and acetabular cavity following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).

Spacer-G is not intended for use for more than 180 days, at which time it must be explanted and a permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).

Prescription Use X (Part 21 CFR 801 Subpart D)

AND/OR

Over-The-Counter Use (21 CFR 801 Subpart C)

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE OF
NEEDED)

ivision of Surgical, Orthopedic, and Restorative Devices

510(k) Number K101356

Concurrence of CDRH, Office of Device Evaluation (ODE)

Page 1 of 1

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SEP 2 0 2011

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510(k) Summary
510(k) Summary:K101356
Official correspondent:CHRISTINE L. BRAUER, PH.D.
US AGENT
Manufacturer/Submitter:TECRES S.P.A.
VIA A. DORIA 6
37066 SOMMACAMPAGNA
VERONA - ITALY
FDA OWNER/OPERATOR ID #: 9033624
Date:SEPTEMBER 14, 2011
Trade/Proprietary model names:SPACER-G AND SPACER-K
TEMPORARY HIP AND KNEE PROSTHESIS
Common name:TEMPORARY HIP AND KNEE SPACER WITH GENTAMICIN
Device classification name:PROSTHESIS, HIP, HEMI-, FEMORAL, METAL
PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-
CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER
Regulation number:888.3360 AND 888.3560
Device class:II
Classification panel:ORTHOPAEDIC
Classification Product Code:KWL, KWY, AND JWH

510 (k) Summary

: : :

.

Tecres

.

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

:

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DEVICE DESCRIPTION:

Spacers are temporary joint prostheses. Spacer-G is a single piece device that mimics a hemi-hip prosthesis, and is available in six sizes. Spacer-K includes a femoral and tibial component, and is available in three sizes. Spacer-G and Spacer-K are made of fully formed polymethylmethacrylate (radiopaque PMMA with gentamicin). Spacer-G contains an inner stainless steel (AISI 316L stainless steel) reinforcing structure. The mass used in the filling of the molds (the PMMA unformed resin) is prepared from a powder component and a liquid component. The liquid component consists of methylmethacrylate, N,N-dimethyl-p-toluidine, hydroquinone; the powder component consists of polymethymethacrylate, barium sulphate, benzovl peroxide, and gentamicin sulphate.

The Spacer devices provide patients, undergoing a two-stage revision procedure for an infected total joint, a temporary implant to 1) allow for partial weight bearing and 2) provide a natural range of motion. The devices also maintain a patient's soft tissue and joint space, preventing further complications such as muscular contraction. The gentamicin protects the device from bacterial colonization.

INTENDED USE AND INDICATIONS FOR USE:

Spacer-G and Spacer-K are indicated for temporary use (maximum 180 days) as a total hip or knee replacement for patients undergoing a two-stage procedure due to a septic process. The indications for use are provided below.

Spacer-K

Spacer-K is indicated for temporary use (maximum of 180 days) as a total knee replacement (TKR) in skeletally mature patients undergoing a two-stage procedure due to a septic Drocess.

Spacer-K is applied on the femoral condyles and on the tibial plate following removal of the existing implant and radical debridement. The device is intended for use in conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).

Spacer-K is not intended for use for more than 180 days, at which time it must be explanted and permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.). Because of the inherent mechanical limitations of the device material (gentamicin/polymethylmethacrylate), Spacer-K is only indicated for patients who will consistently use traditional mobility assist devices (e.g. crutches, walkers, canes) throughout the implantation period.

Spacer-G

Spacer-G is indicated for temporary use (maximum of 180 days) as a total hip replacement (THR) in skeletally mature patients undergoing a two-stage procedure due to a septic process.

The device is inserted into the femoral medullary canal and acetabular cavity following removal of the existing implant and radical debridement. The device is intended for use in

6

conjunction with systemic antimicrobial antibiotic therapy (standard treatment approach to an infection).

Spacer-G is not intended for use for more than 180 days, at which time it must be explanted and a permanent device implanted or another appropriate treatment performed (e.g., resection arthroplasty, fusion, etc.).

୍ୟ

कर

,

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SUBSTANTIAL EQUIVALENCE:

The Spacer devices are substantially equivalent to themselves. Each Spacer device has previously been cleared: Spacer-K in K062274 and, Spacer-G in K062273. The intended use and conditions of use remain the same. This 510(k) application was submitted for a minor change in the materials in each Spacer device.

Performance testing was conducted to verify that implant performance continues to meet the production specifications and be adequate for in vivo applications under the temporary conditions of use. Mechanical properties, gentamicin release and stability data were evaluated and found to support the substantial equivalence of the devices.

Based on the same fundamental scientific technology and on the results of the verification activities, it is concluded that the modified Tecres Spacer devices are substantially equivalent to the legally marketed Tecres Spacer devices.