K203334 · Acuitive Technologies, Inc. · MAI · Feb 5, 2021 · Orthopedic
Device Facts
Record ID
K203334
Device Name
The Citrefix Knotless Suture Anchor
Applicant
Acuitive Technologies, Inc.
Product Code
MAI · Orthopedic
Decision Date
Feb 5, 2021
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 888.3030
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
The Acuitive CITREFIX™ Knotless Suture Anchor is intended for fixation of suture to bone in the shoulder foot/ankle, knee, hand/wrist and elbow in the following procedures: Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Hallux Valgus Reconstruction, Mid-foot Reconstruction, Metatarsal Ligament Repair/Tendon Repair Knee: Medial Collateral Ligament Repair, Lateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Illiotibial Band Tenodesis Hand/Wrist: Scapholunate Ligament Reconstruction, Ulnar Collateral Ligament Reconstruction, Radial Collateral Ligament Reconstruction Elbow: Biceps Tendon Reattachment, Tennis Elbow Repair, Ulnar or Radial Collateral Ligament Reconstruction
Device Story
Knotless suture anchor for soft tissue-to-bone fixation; used in orthopedic procedures (shoulder, foot/ankle, knee, hand/wrist, elbow). Device consists of CITREGEN (citrate-based polymer/bioceramic composite) body and PEEK eyelet. Implanted via direct-insertion, interference-fit technique using reusable drill/awl instruments. Suture passed through eyelet to secure tissue. Provides mechanical fixation during healing; material undergoes surface erosion via hydrolysis, resorbing in vivo. Used by orthopedic surgeons in clinical/OR settings. Benefits include secure tissue reattachment without knot tying, reducing surgical complexity and potential for knot-related complications.
Clinical Evidence
Bench testing only. Evaluated functional performance per ASTM F2502, F2902, and F1635. Testing included pull-out strength and 5,000-cycle physiological loading comparisons against predicate. Biocompatibility assessed per ISO 10993-1 and ISO 10993-6, including extractables/leachables and toxicological risk assessment. Sterility and shelf-life (1 year) validated.
Indicated for fixation of suture to bone in shoulder, foot/ankle, knee, hand/wrist, and elbow procedures requiring soft tissue-to-bone attachment in adult patients.
Regulatory Classification
Identification
Single/multiple component metallic bone fixation appliances and accessories are devices intended to be implanted consisting of one or more metallic components and their metallic fasteners. The devices contain a plate, a nail/plate combination, or a blade/plate combination that are made of alloys, such as cobalt-chromium-molybdenum, stainless steel, and titanium, that are intended to be held in position with fasteners, such as screws and nails, or bolts, nuts, and washers. These devices are used for fixation of fractures of the proximal or distal end of long bones, such as intracapsular, intertrochanteric, intercervical, supracondylar, or condylar fractures of the femur; for fusion of a joint; or for surgical procedures that involve cutting a bone. The devices may be implanted or attached through the skin so that a pulling force (traction) may be applied to the skeletal system.
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February 5, 2021
Image /page/0/Picture/1 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). On the left side of the logo is the Department of Health & Human Services logo. To the right of that 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.
Acuitive Technologies, Inc. % Robert Poggie President BioVera. Inc 65 Promenade Saint Louis Notre-Dame-de-L'lle-Perrot, QC J7V7P2 Canada
Re: K203334
Trade/Device Name: The Acuitive Citrefix™ Knotless Suture Anchor Regulation Number: 21 CFR 888.3030 Regulation Name: Single/Multiple Component Metallic Bone Fixation Appliances And Accessories Regulatory Class: Class II Product Code: MAI, MBI Dated: January 6, 2021 Received: January 7, 2021
Dear Robert Poggie:
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. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. 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.
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
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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) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely,
for
Laura C. Rose, Ph.D. Assistant Director DHT6C: Division of Restorative, Repair and Trauma Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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#### DEPARTMENT OF HEALTH AND HUMAN SERVICES Food and Drug Administration Indications for Use
Form Approved: OMB No. 0910-0120 Expiration Date: 06/30/2023 See PRA Statement below
510(k) Number (if known)
K203334
Device Name
#### The Acuitive CITREFIX™ Knotless Suture Anchor
Indications for Use (Describe)
The Acuitive CTREFIX™ Knotless Suture Anchor is intended for fixation of suture to bone in the shoulder footlankle, knee, hand/wrist and elbow in the following procedures:
Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction
Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achiles Tendon Repair, Hallux Valgus Reconstruction, Midfoot Reconstruction. Metatarsal Ligament Repair/Tendon Repair
Knee: Medial Collateral Ligament Repair, Lateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Illiotibial Band Tenodesis
Hand/Wrist: Scapholunate Ligament Reconstruction, Ulnar Collateral Ligament Reconstruction, Radial Collateral Ligament Reconstruction
Elbow: Biceps Tendon Reattachment, Tennis Elbow Repair, Ulnar or Radial Collateral Ligament Reconstruction
Type of Use (Select one or both, as applicable)
☑ Prescription Use (Part 21 CFR 801 Subpart D)
□ Over-The-Counter Use (21 CFR 801 Subpart C)
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# 510(k) SUMMARY - CITREFIX™ Knotless Suture Anchor
In accordance with 21 CFR 807.92 of the Federal Code of Regulations, the following information is a summary of safety and effectiveness of the CITREFIX Knotless Suture Anchor.
## A. SUBMITTERS INFORMATION
| Submitter Name: | BioVera, Inc. |
|-----------------|---------------|
|-----------------|---------------|
| Submitter Address: | 65 Promenade Saint Louis, Notre-Dame-de-L'Ile-Perrot, QC<br>J7V 7P2, CANADA |
|--------------------|-----------------------------------------------------------------------------|
| Contact Person: | Robert A Poggie, PhD |
Phone & Fax Number: 514-901-0796
- Date of Submission: January 6, 2021
### B. DEVICE IDENTIFICATION & MANUFACTURER
| Manufacturer Name: | Acuitive Technologies, Inc. |
|-----------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer Address: | 50 Commerce Drive, Allendale, NJ 07401, USA |
| Registration Number: | TBD |
| Contact Name: | Matthew Poggie |
| Title: | Sr. VP R&D Operations |
| Device Trade Name: | The Acuitive CITREFIX™ Knotless Suture Anchor |
| Device Common Name: | Bone Anchor, Suture Anchor |
| Classification Name: | Single/multiple component metallic bone fixation appliances an<br>accessories (21 C.F.R. § 888.3030), and Smooth or threaded<br>metallic bone fixation fastener (21 C.F.R. § 888.3040) |
| Classification Code: | MAI and MBI |
| Classification Panel: | Orthopedic |
| Regulation Numbers: | 21 C.F.R. § 888.3030 and 888.3040 |
# C1. PRIMARY PREDICATE DEVICE
K051219 Arthrex PushLock suture anchor
# C2. REFERENCE DEVICE
K200725 CITREGENTM Tendon Interference Screw (TIS), CITRELOCK™ Tendon Fixation Device
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### D. Indications for Use
The Acuitive CITREFIX Knotless Suture Anchor is intended for fixation of suture (soft tissue) to bone in the shoulder foot/ankle, knee, hand/wrist and elbow in the following procedures:
Shoulder: Rotator Cuff Repair, Bankart Repair, SLAP Lesion Repair, Biceps Tenodesis, Acromio-Clavicular Separation Repair, Deltoid Repair, Capsular Shift or Capsulolabral Reconstruction
Foot/Ankle: Lateral Stabilization, Medial Stabilization, Achilles Tendon Repair, Hallux Valqus Reconstruction, Mid-foot Reconstruction, Metatarsal Ligament Repair/Tendon Repair
Knee: Medial Collateral Ligament Repair, Lateral Ligament Repair, Patellar Tendon Repair, Posterior Oblique Ligament Repair, Illiotibial Band Tenodesis
Hand/Wrist: Scapholunate Ligament Reconstruction, Ulnar Collateral Ligament Reconstruction, Radial Collateral Ligament Reconstruction
Elbow: Biceps Tendon Reattachment, Tennis Elbow Repair, Ulnar or Radial Collateral Ligament Reconstruction
### E. Device Description
The CITREFIX Knotless Suture Anchor is comprised primarily of Acuitive Technologies' proprietary CITREGEN, citrate-based polymer / bioceramic composite material. An integral eyelet made of PEEK conforming to ASTM F2026 facilitates passage of the suture through the tip of the anchor. The CITREFIX device is offered in diameters between 2.9 and 5.5 mm and lengths ranging between 12.5 and 24.0 mm. The CITREFIX Knotless Suture Anchor is implanted with reusable instruments, which include size specific drill and awl options for preparing the bone and an insertion instrument for placement of the CITREFIX device. Suture is not provided with the CITREFIX device.
The CITREFIX Knotless Suture Anchor is made from CITREGEN biomaterial, a homogeneous biocomposite of 60 % unsintered hydroxyapatite (HA) and 40 % polyester. CITREGEN's polymer component is a citrate-based network of completely amorphous polymer chains crosslinked together to form an elastomeric material. As water penetrates the subject device, surface erosion of the polymer occurs through hydrolysis of ester bonds located between the monomers and at crosslink sites.
### F. Comparison of Technological Characteristics
The CITREFIX Knotless Suture Anchor has the similar intended and indications for use, as well as similar technological characteristics and principles of operation as the predicate device, and is comprised of the same CITREGEN resorbable biomaterial as the reference device (K200725). The subject Acuitive and predicate Arthrex suture anchors have similar technological characteristics that include:
- Primarily composed of resorbable biocomposite materials,
- PEEK eyelet to facilitate suture fixation to bone,
- Direct-insertion, interference fixation (push-in design), ●
- . Clinical indications and intended use.
- . Surgical technique,
- Similar drill and awl instrument options for preparing the bone, and ●
- . Provided sterile to the end user.
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The subject device is comprised of CITREGEN biomaterial, which is a homogeneous biocomposite comprised of unsintered hydroxyapatite (HA) and polyester that is bioresorbed over time in vivo. The predicate Arthrex device is comprised of BioComposite material that is comprised of biphasic calcium phosphate and PLDLA that also resorbs in vivo. The material differences between the Acuitive device and the predicate are the polyester, bioceramic, and weight percentage of bioceramic. The specific materials used differ from the predicate but do not raise different issues of safety or effectiveness.
The minor technological differences between the subject Acuitive CITREFIX and predicate Arthrex PushLock devices do not raise new issues of safety or effectiveness. The data demonstrates that the CITREFIX is substantially equivalent to the predicate device.
### G. Performance Data
The performance characteristics of CITREFIX Knotless Suture Anchors were established via studies of functional performance in vitro, packaging, shelf life testing, sterility including EO residuals, physical and chemical properties per ASTM F2902 and biocompatibility per ISO 10993-1. Packaging and shelf life tests using real and accelerated time aging were performed with passing results. The labeled shelf-life of the product is one year based on the stability data analyzed to date. Bacterial endotoxin testing showed СттеЕтх to meet the set endotoxin limits (<20 EUs / surgical procedure). Biocompatibility of CITREFIX devices was demonstrated by ISO 10993 testing for a permanent implant, including toxicological risk assessment through the lifecycle of the device.
Evaluation of performance characteristics of the CITREFIX device was guided by the FDA quidance document "Premarket Notification (510(k)) Submissions for Bone Anchors" issued on January 3, 2017, pre-submission Q170251, and ASTM standards F2502, F2902, and F1635. Bench testing was performed on the worst-case, smallest diameter Citrefix device (2.9mm diameter), intermediate size (4.5mm) subject CITREFIX device and same-size predicate Arthrex PushLock device for pull-out testing at time-zero, following a period soaking in 37C PBS and after 5,000 cycles of simulated physiological loading, with results demonstrating substantial equivalence of the predicate and subject devices.
Biocompatibility studies performed with CITREGEN devices at various stages of life cycle through 90% demonstrated biocompatibility per ISO 10993-6. Extractables & leachables (E&L) testing at various stages of test article life cycle was performed, with biocompatibility and toxicological risk assessments concluding that CITREGEN material devices are safe for long-term implantation.
#### H. Conclusion
Based on the similarities of indications for use, technological characteristics, and summary of data. Acuitive Technologies has determined that the subject device, the CITREFIX Knotless Suture Anchor, is substantially equivalent to the currently marketed predicate device, the Arthrex PushLock suture anchor. Performance testing and assessment of biocompatibility has demonstrated that the device functions as intended without raising new questions of safety or effectiveness.
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