Early Weight-Bearing After the Lapiplasty Mini-Incision Procedure (Mini3D) (Mini3D)
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ClinicalTrials.gov Identifier: NCT05082012 |
Recruitment Status :
Recruiting
First Posted : October 18, 2021
Last Update Posted : April 27, 2022
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Prospective, multicenter, unblinded study to evaluate outcomes of the Lapiplasty® Procedure using the Lapiplasty® Mini-Incision™ System for patients in need of hallux valgus surgery.
Up to 200 subjects will be treated in this study at up to 20 clinical sites. Patients 14 years through 58 years with symptomatic hallux valgus will be eligible to participate based on the inclusion and exclusion criteria defined in the study protocol.
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Hallux Valgus Bunion | Device: Treatment of Hallux Valgus | Not Applicable |
Prospective, multicenter, unblinded study to evaluate outcomes of the Lapiplasty® Procedure using the Lapiplasty® Mini-Incision™ System for patients in need of hallux valgus surgery:
- To determine radiographic recurrence of hallux valgus and the timing of failure following hallux valgus correction with the Lapiplasty® Procedure.
- To determine whether the Lapiplasty® Procedure effectively corrects anatomical alignment of the 1st metatarsal and sesamoids in all three planes.
- To assess whether early weight-bearing after the Lapiplasty® Procedure affects the union rates or causes loss of 3-plane correction.
- To evaluate the quality of life and pain scores following the Lapiplasty® Procedure.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 200 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Prospective Clinical StuDy of Tri-planar Tarsometatarsal (TMT) ArthroDesis With Early Weight-Bearing After Lapiplasty® ProceDure Through a Mini-Incision™ Approach (Mini3D) |
Actual Study Start Date : | September 17, 2021 |
Estimated Primary Completion Date : | September 17, 2023 |
Estimated Study Completion Date : | December 31, 2023 |

- Device: Treatment of Hallux Valgus
Patients 14 years through 58 years with symptomatic hallux valgus will be eligible to participate based on the inclusion/exclusion criteria established in the study protocol. Anticipated subject duration will be 2 years post index procedure.Other Name: Lapiplasty® Mini-Incision™ Procedure
- Radiographic Recurrence [ Time Frame: 24 months ]To determine radiographic recurrence of hallux valgus and the timing of failure following hallux valgus correction with the Lapiplasty® Procedure
- Radiographic Angular/Positional Alignment [ Time Frame: pre-op, 6 weeks, 4 months, 6 months, 12 months, 24 months post Lapiplasty® Procedure ]Change in radiographic angular/positional alignment before/after the Lapiplasty® Procedure
- Radiographic Healing [ Time Frame: 12 months post Lapiplasty® Procedure ]Union vs non-union -- Non-union defined as lucency at TMT joint, hardware failure and/or loss of correction, plus clinical pain at first TMT joint
- Clinical complications due to Lapiplasty® System Implants, the procedure, the post-op weight-bearing protocol or health conditions that could affect other outcome measures - measured by Adverse Events and Product Complaint data [ Time Frame: 24 months post Lapiplasty® Procedure ]Clinical complications due to Lapiplasty® System Implants, the procedure, the post-op weight-bearing protocol or health conditions that could affect other outcome measures - measured by Adverse Events and Product Complaint data
- Time to start of weight-bearing in a boot [ Time Frame: 0-3 weeks, post Lapiplasty® Procedure ]Time to start of weight-bearing in a boot
- Time to start of weight-bearing in a shoe [ Time Frame: 6 weeks, post Lapiplasty® Procedure ]Time to start of weight-bearing in a shoe
- Time to return to full unrestricted activity [ Time Frame: 6 weeks - 12 months, post Lapiplasty® Procedure ]Time to return to full unrestricted activity
- Change in Pain [ Time Frame: 0-2 weeks, 2-3 weeks, 6 weeks, 4 months, 6 months, 12 months, 24 months post Lapiplasty® Procedure ]Change in pain assess via Visual Analog Scale (VAS)
- Change in Quality of Life [ Time Frame: 6 months, 12 months, 24 months post Lapiplasty® Procedure ]Change in quality of life via PROMIS-29, PROMIS-25, MOxFQ
- Change in Range of Motion [ Time Frame: 12 months, 24 months post Lapiplasty® Procedure ]1st MTP dorsiflexion and plantarflexion
- Change in Radiographic Foot Length [ Time Frame: 12 months post Lapiplasty® Procedure ]Change in radiographic foot length compared to baseline visit
- Change in Radiographic Foot Width [ Time Frame: 12 months post Lapiplasty® Procedure ]Change in radiographic foot width compared to baseline visit
- Change in Swelling at Foot, Ankle & Mid-Calf (Circumference) [ Time Frame: 6 weeks and 4 months post Lapiplasty® Procedure ]Change in swelling as compared to 0-2 week visit
- Change in Scar Quality as Measured by Patient and Observer Scar Assessment Scale (POSAS) [ Time Frame: 4 months, 6 months, and 12 months post Lapiplasty® Procedure ]Change in scar quality in comparison to baseline visit

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 14 Years to 58 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
Patients satisfying the following criteria will be considered the screening population and will be eligible for participation:
- Male and females between the ages 14 and 58 years at the time of consent;
- Closed physeal plates at the time of consent;
- Intermetatarsal angle is between 10.0˚ - 22.0˚;
- Hallux valgus angle is between 16.0˚ - 40.0˚;
- Willing and able to adhere to early weight-bearing instructions post-operatively;
- Capable of completing self-administered questionnaires;
- Acceptable surgical candidate, including use of general anesthesia;
- Female patients must be of non-child bearing potential or have a negative pregnancy test within 7 days prior to index procedure;
- Willing and able to schedule index procedure within 3 months of consent and able to return for scheduled follow-up visits;
- Willing and able to provide written informed consent.
Exclusion Criteria:
Patients satisfying the following criteria will not be eligible for participation:
- Previous surgery for hallux valgus on operative side;
- Previous surgeries on operative foot involving fusion of foot or ankle joints (other than hammertoe or lesser toes/digits);
- Additional concomitant procedures outside of the 1st ray;
- Moderate or Severe osteoarthritis of the MTP joint based on radiographic imaging (including lack of evident crista) or positive grind test;
- Symptomatic flatfoot or asymptomatic flatfoot (defined as calcaneal inclination <5˚and talonavicular subluxation/uncovering >50%);
- BMI >40 kg/m²;
- Current nicotine user, including current use of nicotine patch;
- Current clinical diagnosis of diabetes with fasting plasma glucose > 126 mg/dL and/or HbA1c ≥7.0;
- Current clinical diagnosis of peripheral neuropathy or by assessment on 4-point monofilament test;
- Current clinical diagnosis of fibromyalgia;
- Current clinical diagnosis of Complex Regional Pain Syndrome/Reflex Sympathetic Dystrophy (CRPS/RSD);
- Current uncontrolled hypothyroidism;
- Previously sensitized to titanium;
- Currently taking oral steroids or rheumatoid biologics;
- Currently taking immunosuppressant drugs;
- Insufficient quantity or quality of bone to permit stabilization, conditions that retard healing (not including pathological fractures) and conditions causing poor blood supply such as peripheral vascular disease;
- Active, suspected or latent infection in the affected area;
- Use of synthetic or allogenic bone graft substitutes;
- Current diagnosis of metatarsus adductus (defined as MAA ≥ 23˚);
- Known keloid and hypertrophic scar forming;
- Scheduled to undergo a same-day bilateral procedure. Patient agrees to refrain from the Lapiplasty® Procedure (or other hallux valgus procedures) on contralateral foot for minimum of 6 months post index procedure;
- Patient has previously been enrolled into this study for a contralateral procedure;
- Scheduled for any concomitant procedure that would alter patient's ability to early weight-bear post-procedure;
- Patient requires an incision >4.0 cm to complete the procedure (determined pre-operatively or intra-operatively);
- Patient is actively involved with a workman's compensation case or is currently involved in litigation;
- Patient is currently or has participated in a clinical study in the last 30 days prior to signing informed consent or is considering participation in another research protocol during this study. Exceptions to this include survey clinical studies with no treatment or if subject is greater than 12 months post procedure in the Treace ALIGN3D™ study without ongoing protocol defined AE; these are not exclusionary;
- Patient has a condition or finding that, in the opinion of the Investigator, may jeopardize the patient's well-being, the soundness of this clinical study, or could interfere with provision of informed consent, completion of tests, therapy, or follow-up.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT05082012
Contact: Cara Bethell | (904) 373-5940 ext 1317 | cbethell@treace.net | |
Contact: Shana Zink | (513) 265-0621 | szink@treace.net |
United States, Alabama | |
DOC - Decatur Orthopaedic Clinic | Recruiting |
Decatur, Alabama, United States, 35601 | |
Contact: Rebecca McWhirter, CRNP 256-350-0362 rstephenson@docorthopaedic.com | |
Principal Investigator: Justin Daigre, MD | |
DOC - Decatur Orthopaedic Clinic | Recruiting |
Hartselle, Alabama, United States, 35640 | |
Contact: Rebecca McWhirter 256-350-0362 rstephenson@docorthopaedic.com | |
Principal Investigator: Justin Daigre, MD | |
United States, Arizona | |
Phoenix Foot and Ankle Institute | Recruiting |
Scottsdale, Arizona, United States, 85251 | |
Contact: Jeffrey E McAlister, DPM 602-761-7819 jeff.mcalister@phoenixfai.com | |
Principal Investigator: Jeffrey E McAlister, DPM | |
United States, Missouri | |
JCMG - Podiatry | Recruiting |
Jefferson City, Missouri, United States, 65109 | |
Contact: Lauren Livesay, BHS, CCRP 573-556-7785 lauren.livesay@avacare.com | |
Contact: Lisa Word, MSN, RN (573) 556-7785 lisa.word@avacare.com | |
Principal Investigator: Jody McAleer, DPM, FACFAS | |
Sub-Investigator: William Duke, DPM | |
United States, Texas | |
Stonebriar Foot and Ankle | Recruiting |
Frisco, Texas, United States, 75034 | |
Contact: Robert Taylor, DPM 972-712-4161 bobbyerl@msn.com | |
Contact: Angela Knowles, PMAC (972) 712-4161 angela.knowles@sbcglobal.net | |
Principal Investigator: Robert Taylor, DPM | |
Foot & Ankle Associates of North Texas - Keller | Recruiting |
Keller, Texas, United States, 76248 | |
Contact: Paul Steinke, DPM 817-416-6155 steinke@faant.com | |
Principal Investigator: Paul Steinke, DPM | |
Sports Medicine Associates of San Antonio | Recruiting |
San Antonio, Texas, United States, 78240 | |
Contact: Marque Allen, DPM 210-699-8326 allenmarque@gmail.com | |
Principal Investigator: Marque Allen, DPM |
Principal Investigator: | Jody McAleer, DPM, FACFAS | JCMG - Podiatry |
Responsible Party: | Treace Medical Concepts, Inc. |
ClinicalTrials.gov Identifier: | NCT05082012 |
Other Study ID Numbers: |
CP2021-1 |
First Posted: | October 18, 2021 Key Record Dates |
Last Update Posted: | April 27, 2022 |
Last Verified: | April 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | Yes |
Product Manufactured in and Exported from the U.S.: | No |
Hallux Valgus Foot Deformities Musculoskeletal Diseases |